茶米王(DAVIDWA)

Windows 10 --- How to fix Sysprep fail

2019-07-14T14:27:00.001+08:00

Sysprep is a tool for IT administrators who want to prepare an installation of Windows for duplication.

In Windows 10 or Windows 8 platform, the serveral Microsoft Store Apps have built in that maybe encounter some isssue when execute the Sysprep tool.

The cause is that Sysprep has an additional provider that's added in Windows 10 and Windows 8 to clean Appx packages and to generalize the image.

If an all-user package that's provisioned into the image was manually deprovisioned from the image but not removed for a particular user, the provider will encounter an error while cleaning out this package during sysprep. The provider will also fail if an all-user package that's provisioned into the image was updated by one of the users on this reference computer.

To resolve this issue, remove the package for the user who's running sysprep, and also remove the provisioning.
The steps is as follows:
1. Unplug the Internet connection to prevent Microsoft Store from updating apps

2. Run the Import-Module Appx on PowerShell cmdlet.
3. Run Import-Module Dism on PowerShell cmdlet.

Remove the package
4. Open SetupErr.log and notice the error entries
5. Run Get-AppxPackage -AllUser | Select-String
6. Run Remove-AppxPackage -Package

Remove the provisioning

7. Run Remove-AppxProvisionedPackage -Online -PackageName

So do that maybe can fix Sysprep fail.

Systemback --- How to create systemback live system on lubuntu 16.04

2018-05-19T15:24:00.001+08:00

Although we can get the upgrade setup of Ubuntu/Lubuntu from Browser Search, we also find out some case will fail if follow these steps. "If we can do the image snapshot or backup before upgrade begin, maybe we have chance to rollback to the initial state.", I think.

Systemback is a good utility that can be used to backup and restore Ubuntu/Lubuntu systems. I will create the complete backup of the live system including user configuration files and data as ISO, and save them in an external hard disk. That is to create the live Ubuntu system as the booted USB or ISO, and boot your system using it in-case of any problems.

It is very simple to install Systemback utility in Ubuntu 16.04 LTS.(#1)
At first, add Systemback PPA by using sudo add-apt-repository ppa:nemh/systemback command.

Next to update the software sources by using sudo apt-get update command

Finally, install Systemback using by sudo apt-get install systemback command

Once the installation is finished, Launch Systemback in Applications-> System Tools-> Systemback and supply the password to key in this dialog box.

The default interface look like as follows:

To click on "Live system create" button and supply the name of (new) live system, replacing "auto". We will set the Working directory (/home) where you store live image and iso. This directory must be a writable linux filesystem - no fat, exfat, fat32 nor ntfs directories or partitions can be used for storage. If ready, click on "Create new" button to go ahead.

The systemback displays a progress bar

To wait for your Live system creation to finish as the following notification.

After Systemback has finished creating the new live system, we can write the system directly to a pen (USB flash) drive or DVD.

USB drive
Insert a flash drive、 click on the circleback green arrow to refresh it, the "Write target" box will display a flash drive and the "Write to target" Live operation becomes ungrayed and available.
To select a created live image and a target drive next to click on "Write to target".

The dialog box will show up and click on Start to go ahead.

Systemback will writes the selected image to your flash drive and a progress bar is displayed.

Finally, the live system image will success to be write to the Flash drive.

ISO or DVD
We also can create an .iso from the created live image if the .sblive file is not larger than 4 GB (#2). To select a new live image next to click on Convert to ISO.

So do that we can create the entire the system as live bootable ISO and write the ISO to DVD or USB drive next to boot it.

[Reference]：
(#1). systemback version limitation
https://launchpad.net/systemback
This PPA contain the stable version of Systemback.

Currently supported Ubuntu releases:
- 14.04.X LTS
- 15.04
- 15.10
- 16.04.X LTS
- 16.10
* DEVELOPMENT AND SUPPORT ENDED

newer versions of systemback
*https://launchpad.net/~sonicwalker/+archive/ubuntu/sonicos+dev

(#2).Why systemback "Convert to ISO" button is disabled?

This is a file system limitation. If the .sblive file is larger than 4 GB, the conversion to a .iso file is not possible.

How to workaround this problem to generate the ISO manually?
1. Decompress the .sblive image:
$ mkdir sblive
$ tar -xf /home/BeforeUpgradeOS_1.sblive -C sblive

2. Rename the syslinux to isolinux:
$ ls -al sblive/syslinux/*.cfg sblive/

$ mv sblive/syslinux/syslinux.cfg sblive/syslinux/isolinux.cfg
$ mv sblive/syslinux sblive/isolinux

$ ls -al sblive/syslinux/*.cfg sblive/

3. Install mkisofs from https://sourceforge.net/projects/cdrtools/
3-1.Install the packages via some third party PPA
$ sudo add-apt-repository ppa:brandonsnider/cdrtools

$ sudo apt-get update
$ sudo apt-get install cdrecord mkisofs

3-2.Install the packages via source compiler
$ sudo apt install aria2

$ aria2c -s 10 https://sourceforge.net/projects/cdrtools/files/alpha/cdrtools-3.02a09.tar.gz

$ tar -xzvf cdrtools-3.02a09.tar.gz
$ cd cdrtools-3.02
$ make
$ sudo make install

4. Generate the ISO file:
Normal BIOS Mode
$ modemkisofs \
-iso-level 3 -r -V "sblive" -cache-inodes -J -l \
-o /media/davidwa/MyBackup/sblive.iso \
-c isolinux/boot.cat \
-b isolinux/isolinux.bin \
-no-emul-boot -boot-load-size 4 -boot-info-table \
-no-emul-boot \
sblive

UEFI Mode
$ mkisofs \
-iso-level 3 -r -V "efisblive" -cache-inodes -J -l \
-o /media/davidwa/MyBackup/efisblive.iso \
-c isolinux/boot.cat \
-b isolinux/isolinux.bin \
-no-emul-boot -boot-load-size 4 -boot-info-table \
-eltorito-alt-boot \
-eltorito-boot boot/grub/efi.img \
-no-emul-boot \
sblive

So do that we did make a iso file over than 4GB size

VMware Workstation 14.0.0 --- How to convert a virtual disk from growable to preallocated on Lubuntu 16.04

2018-01-14T17:09:00.001+08:00

In general, we create a virtual disk with growable type for saving the disk space on vmware environment. For performance thought, maybe need to change the disk type for reducing the count of the defrage/compact disk.
By the virtual machine settings, we can know whether the disk is preallocated or not in the disk information.

Once decide to do this, we have to shut down the virtual machine because the disk can’t be converted if it’s powered on or suspended.
To convert the virtual disk by using the following command
$ vmware-vdiskmanager -r < original disk > -t < type > < target disk >

Note:
1). The location is the sames as one.
2). In using the -t flag, VMware virtual disk (vmdk) types has the following choice.

0 : single growable virtual disk (single .vmdk file)
1 : growable virtual disk split in 2Gb files (multiple 2GB files)
2 : single preallocated virtual disk (single file)
3 : preallocated virtual disk split in 2Gb files (multiple 2GB files)
4 : preallocated ESX
5 : compressed for streaming

When successfully finish the convert, we need to replace the original Disk file with the new disk. The action flow is as follows:
AS-IS

TO-BE

Now we can boot it normally.

Lubuntu 16.04 --- The Fcitx-Chewing input method cannot show the Chinese fonts.

2017-10-08T20:28:00.001+08:00

Due to the Lutuntu 16.04 install process select the Englisht language, my system language is in English by default. If want to install the additional language as Chinese character, we need to launch "Language Support" item as follows:

At first, the keyboard input method switch to the "fcitx" mode based on the personal behavior.

When click "Install / Remove languages ..." button, we can select the prefer language as "Chinese Traditional" to be installed.

Note:
If the language support is trigger in the first time, the system will directly tell us that the language support is not installed completely and ask us whether want to install them now.

After install and reboot, we will choose the right language next to log on the system.

In the moment, the system will ask us whether will change the language of the profile folder to the current "new" language? By you decide!

To click the Penguin icon for configuring "fcitx" input method.

Add "Fcitx-Chewing" to the current input method.

When switch to Fcitx-Chewing mode and want to key in Chinese font by document editor, we find out the input screen is blank and cannot show any words.

By searching the Google, we find out maybe kill "fcitx-qimpanel" process can resolve this problem. It it is true by doing "killall fcitx-qimpanel" command next to key in the Chinese font again, we will disable "fcitx-qimpanel" fucntion when the system boot by doing the following process.

Reboot and log on again for verify whether the problem can be resolved.

If the problem still exist, maybe need to install the "Qt Quick" module

Reboot again and almost the blank screen will be resolved.

Lubuntu 16.04 -- How to Join Microsoft AD domain by using Power Broker Identity Service Open Edition.

2017-10-08T15:48:00.001+08:00

In general, we know the linux platform join to Microsoft AD domain by using the Samba package. But the related process need to be done very much. Wether has the alternative package can do the same action?
The following introduction will express that the Lubuntu 16.04 join the Active Directory domain by using the Power Broker Identity Service Open Edition.

AD Environment

*MS Windows Server 2016 Domain Name: corpnet.lab
*Domain admin username: administrator
*Domain user username: test1

Linux Environment

*Linux Platform: Lubuntu 16.04 x64

*Linux admain username: davidwa

[pre-requisite]
**Update Lubuntu

$ sudo apt update

$ sudo apt dist-upgrade

For launch PBIS GUI, we need to install the following package.

$ sudo apt install libglade2-0

$ sudo apt install ssh

[Install PBIS software]

To download the latest stable version of the pbis-open file based on the self-platform from GitHun as https://github.com/BeyondTrust/pbis-open/releases

In the terminal shell, switch to the download path as cd ~/Downloads and set the executable permission by run sudo chmod +x pbis-open-***.linux.x86_64.deb.sh command

To install the pbis-open package by run sudo ./pbis-open-***.linux.x86_64.deb.sh command

[Use PBIS-Open Package to join the workstation to the Windows Domain]

After installing,it will pop up a dialog about domain join windows. If not, then later enter sudo /opt/pbis/bin/domainjoin-gui command to show a GUI-based domain join tool as well. (# 1)

When prompted for a password supply the appropriate credentials,

we will receive a "SUCCESS" prompt when finished and automatically set the FQDN in the /etc/hosts file.(# 2)

On Lubuntu/Ubuntu computer, we will swith to the location of the domain join command-line utility and execute the command for joining the current machine into an AD domain. (# 3)

$ cd /opt/pbis/bin/

$ sudo domainjoin-cli join "DomainFQDNName" "DomainAdminAccount"

$ sudo domainjoin-cli join "DomainFQDNName" "DomainAdminUPNAccount"

*where

"DomainFQDNName" = the FQDN of the Microsoft Active Directory domain as ad.com

"DomainAdminAccount" = domainuser with the permission that join computer to domain

"DomainAdminUPNAccount" = domainuser@domainFQDNname

EXAMPLE:

$ sudo su

$ domainjoin-cli join corpnet.lab administrator

[Set-up default configuration for domain users]

To set the PBIS environment for all domain users that will be logon the system.
$ sudo /opt/pbis/bin/config UserDomainPrefix LAB

$ sudo /opt/pbis/bin/config AssumeDefaultDomain true

$ sudo /opt/pbis/bin/config LoginShellTemplate /bin/bash

$ sudo /opt/pbis/bin/config HomeDirTemplate %H/%U

$ sudo /opt/pbis/bin/config RequireMembershipOf "LAB\\domain^users"

$ sudo /opt/pbis/bin/ad-cache --delete-all

$ sudo /opt/pbis/bin/update-dns

*where

LAB = Domain Name

domain^users = Domain Users Security Group

[Integrade with Samba]
If we want to use a Linux Samba server that is integrated with AD using PBIS

$ sudo apt install samba

$ sudo /opt/pbis/bin/samba-interop-install --install

[Disable local resolver]
Note that starting from Ubuntu 14.04 NetworkManager has a local resolver which needs to be disabled

$ sudo nano /etc/NetworkManager/NetworkManager.conf

Find the line that states the following:

dns=dnsmasq

Replace it with:

#dns=dnsmasq

[Confiure PAM authentication]
From a terminal:

$ sudo nano /etc/pam.d/common-session

Find the line that states the following:

session optional pam_lsass.so

Replace it with:

session [success=ok default=ignore] pam_lsass.so

$ sudo pam-auth-update --force

enable “Create home directory on login”

[Edit the lightdm configuration file]

For Ubuntu, edit the lightdm configuration file

$ sudo nano /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf

and append the following lines:

allow-guest=false

greeter-show-manual-login=true

For Lubuntu, edit the lightdm configuration file will be:

$ sudo nano /usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf

and append the following lines:

allow-guest=false

greeter-show-manual-login=true

[Add AD Domain user to sudoers file]

If we want to give them sudo privileges, we can add any domain users and/or groups to the sudoers file.

From a terminal, edit /etc/sudoers with the following entries

$ sudo nano /etc/sudoers

and append the following lines:

"DomainUserAccount" ALL=(ALL:ALL) ALL

%"DomainName"\\"Domain Users Security Group" ALL=(ALL) ALL

EXAMPLE:

test1 ALL=(ALL:ALL) ALL

%LAB\\domain^users ALL=(ALL) ALL

restart computer

$ sudo restart

[Verify function]
**logon domain user

$ id "Domain Account"

$ id "Domain Name"\\"Domain Account"

**Login linux account

$ su - "Domain Account"

Until now, we make sure that this linux platform has already successfully join into the AD domain.

Reference:

(# 1) If no install "libglade2-0" by executing sudo apt install libglade2-0, we cannot launch the pbis-open gui and will get error message as follows:

(# 2) If want to join a Linux computer to the domain without changing the /etc/hosts file, we can run the following command as

# sudo su

# /opt/pbis/bin/domainjoin-cli join --disable hostname

(# 3) If we don't install/enable SSH daemon, maybe need to disable ssh module when join the AD domain.

$ sudo domainjoin-cli join --disable ssh "DomainFQDNName" "DomainAdminAccount"

$ sudo domainjoin-cli join --disable ssh "DomainFQDNName" "DomainAdminUPNAccount"

* The command usage refer to http://manpages.ubuntu.com/manpages/precise/man8/domainjoin-cli.8.html

ZeroShell 3.6.0 --- How to upgrade the ZeroShell old version(3.4.0) to the latest one(3.6.0)

2017-05-27T22:34:00.001+08:00

Thank Fulvio develop/share the ZeroShell package for everyone!
It will help me to do some testing in the simulated environment because its function is as Router role.

For security and enhanced function, sometimes we hope to install the new release as the next version and Add-on packages. So we have to require a activation key by doing some process(# 1) next to send the Feature Code to activation@zeroshell.net for receiving the related Activation Key.

I am lazy for requesting an Activation Key and just do it on virtualization Lab, I think maybe there is some method to do the upgrade process. That is the configuration is backup from the old version next to restore to the new version but need to install the newest software at first.

How to do it?
(1).Install the newest ZeroShell software by following the previous article
(2).Backup the configuration from the old ZeroShell version

(3). Restore the configuration to the newest ZeroShell version

(4). Active the imported profile

So do that we can use the newest ZeroShell version as before on Lab now!

Reference:
(# 1) How to obtain a key

Put a link and description about Zeroshell on your website

Post your positive/negative experiences with Zeroshell on external forum/blog

Make a small donation with PayPal by clicking the image below

(# 2) The above procedure still is compatible with the 3.7.1 version.

JMeter 3.1 --- how to install JMeter 3.1 with OpenJDK on Ubuntu/Lubuntu 16.10

2017-03-13T22:13:00.001+08:00

JAVA is necessary to run certain applications in Linux and windows machine. JAVA comes with two packages (JDK & JRE). JDK stands for (Java Development Kit) which helps developers for developing, debugging, and monitoring Java applications.

JRE stands for (Java Runtime Environment) which deploys Java applications on servers.It includes tools for JVM monitoring and tools commonly required for server applications. Many of us needed only JRE, so make sure you have installed JRE not for JDE.

In this article i’m going to explain how to install OpenJDK in Linux such as Ubuntu based systems.

1) Search OpenJDK Packages
Use the below commands to search available java version on your distribution to install further.

2) Install JAVA (OpenJDK)
We have found the list of available JAVA version on Linux distribution in above step. Use the following commands to install required java (OpenJDK/JRE) version on your system through the package manager.
Install JRE - Java Runtime Environment

Install JDK - Java Development Kit

3) Verify JAVA (OpenJDK) Version
After successful installation of Java, use the following command to verify the installed version of JAVA on your systems.

4) Setup JAVA Environment Variables
We should Setup JAVA Environment Variables for java because all the java based application uses environment variables to work. Open your .bashrc file and add the below lines to end of the file. Make sure you need to mention your path instead of us, then Save and exit.

After saving .bashrc file, run the following command to make it work.
Now, check the environment value using below commands. Its clearly fetch the path of jdk and jre home.

5) Download Latest Apache JMeter Binaries
We will download the latest version of JMeter from http://jmeter.apache.org/download_jmeter.cgi

6) Extract JMeter Archive into /tmp
$ tar xvzf ~/Downloads/apache-jmeter*.tgz -C /tmp/

7) Installing JMeter
$ sudo mv /tmp/apache-jmeter* /opt/apache-jmeter

$ sudo ln -s /opt/apache-jmeter/bin/jmeter /usr/local/bin/jmeter

8) Launching JMeter
$ sudo jmeter

Finally, the JMeter software will appear on the screen.

LoadRunner 12.53 --- How to Configure Client-Server Authentication

2017-03-13T21:39:00.003+08:00

In LoadRunner 12.00 or later, it introduced a complete security solution based on an industry standard SSL/TLS library (OpenSSL), which includes both data encryption and authentication.
When we do the HP LoadRunner Setup process, we need to setup or configure a certificate for client-server authentication.

If we have a valid existing CA or certificate file, we can directly choose it. If no, we have to create a certificate authority(CA) and an SSL digital certificate next to install it.

How to do it ? By using the LoadRunner Certificate Manager is simple.

1. Run the Certificate Manager from < LoadRunner installation folder >\bin\LRcertificateMngr.exe

2. If we have not previously created certificates with this application, it displays the default LoadRunner certificates

3. In the Certificate Manager, click Change.

4. Click New for creating a new CA certificate

5. Enter the required values in the Create New CA Certificate screen. When finished, click Create.

6. Click Next and continue following the on-screen instructions to create a corresponding SSL certificate

7. Click New for creating a new SSL certificate.

8. Enter the required values in the Create New CA Certificate screen. When finished, click Create

9. When Finish, it will installs the SSL certificate and corresponding CA certificate on the current LoadRunner machine.

So do that we can go ahead next install steps.

Reference:
(#1). To install this CA certificate on other LoadRunner computers, click Export to save the generated certificate.

Then install it on other LoadRunner computers using the gen_ca_cert command with a -install option as < LoadRunner installation folder >\bin\gen_ca_cert -install < name of CA certificate file >

(#2). To install this SSL certificate on other LoadRunner computers, click Export to save the generated certificate.

Then install it on other LoadRunner computers using the gen_cert command with the -install option as < LoadRunner installation folder >\bin\gen_cert -install < name of SSL certificate file >

Docker 1.13.0 --- How to add "restart" policy to the initiating Container if never set it

2017-02-28T13:52:00.000+08:00

Since docker 1.11.0 or above version, we can change the restart policy if an initiating container forget to set it.

$ docker update --restart [Option] [Container ID]
where
--restart Restart policy to apply when a container exits
[Option]
no Do not automatically restart the container when it exits. This is the default.
on-failure[:max-retries] Restart only if the container exits with a non-zero exit status. Optionally, limit the number of restart retries the Docker daemon attempts.
always Always restart the container regardless of the exit status. When you specify always, the Docker daemon will try to restart the container indefinitely. The container will also always start on daemon startup, regardless of the current state of the container.
unless-stopped Always restart the container regardless of the exit status, but do not start it on daemon startup if the container has been put to a stopped state before.

Note that if the container is started with “–rm” flag, you cannot update the restart policy for it. The AutoRemove and RestartPolicy are mutually exclusive for the container.

As to old version as 1.11.0 before, we can rename the orginial container, start a temp container (but attach the existing volumes of the orginial container), and remove the temp container now that it's no longer needed.
$ docker stop my-old-container

$ docker rename my-old-container my-temp-container

$ docker run ... --volumes-from=my-temp-container --restart always myimage

$ docker rm my-temp-container

To restart the Docker daemon and we can find out the container will start automatically now.

Docker Machine 0.9.0 --- Docker Machine install on the local client and manage Docker Engine on the remote host

2017-02-25T14:49:00.001+08:00

Docker Machine is a tool that lets we install Docker Engine on virtual hosts and manager the hosts with docker-machine command.

By docker-machine command, we can start, inspect, stop and restart a managed host, upgrade the Docker client and daemon, and configure a Docker client to talk to the host next to run docker commands directly on this host.

In the moment, we will demo how to practice that docker machine manage the remote host.

Prerequisites
docker host never install a docker engine on the remote machine (# 1)
docker client install docker client and docker machine on the local machine(as laptop)
where
OS in the remote need to be CentOS 7, Ubuntu 16.04 or above version
The net-tools package (# 2) need to be installed on the remote machine

[Remote Machine]
To create a docker manager account with new password (# 3)
$ sudo adduser {dockermanager}

To allow sudo for docker manager
In the remote machine, we have to edit the /etc/sudoers file and add the following content

{dockermanager} ALL=(ALL) NOPASSWD:ALL
where
{dockermanager} is the username on the remote machine

So do that Machine communicates with the hosts over password-less SSH

To check whether ssh daemon is running and is listening on port 22
$ sudo service ssh status

$ sudo netstat -anp | grep sshd

If it don't show the listening on tcp 0.0.0.0:22, we need to install openssh server
$ sudo apt-get update
$ sudo apt-get install openssh-server

[Local Machine]
To generate a public/private keys with empty passphrase (# 4)
$ ssh-keygen -t rsa
where
id_rsa.pub (RSA public key for authentication) file is the public key
id_rsa (RSA authentication identity of the user) file is the private key

In bash shell, the SSH key will be saved on ~/.ssh on linux platform

To copy a public key from local machine to a remote machine
$ ssh-copy-id -i ~/.ssh/id_rsa.pub {dockermanager}@{docker host}
where
{dockermanager} is the username on the remote machine
{docker host} is the ip address or host name of the remote machine

To connect the remote machine by using the SSH key
$ ssh {dockermanager}@{docker host}

To install Docker Client Tool
Until now, there is no docker client-only debs/rpms binary so that we need to do something for getting the individual binary. That is download the docker latest release next to extract it and execute docker command directly.

To install Docker Machine (# 5)
$ curl -L https://github.com/docker/machine/releases/download/v0.9.0/docker-machine-`uname -s`-`uname -m` >/tmp/docker-machine

$ chmod +x /tmp/docker-machine

$ sudo cp /tmp/docker-machine /usr/local/bin/docker-machine

To check docker machine version
$ docker-machine version

To create the remote docker-vm using an existing VM/Host with SSH
$ docker-machine create \
--driver generic \
--generic-ip-address={remote docker host ip} \
--generic-ssh-key ~/.ssh/id_rsa \
--generic-ssh-user {dockermanager} \
--generic-ssh-port 22 \
--generic-engine-port 2376 \
{remote-docker-host}

To check which docker engine is active now
$ docker-machine ls

To print out the detail about the docker client to use the remote docker engine
$ docker-machine env {remote-docker-host}

To connect your shell to the new machine
$ eval $(docker-machine env {remote-docker-host})

To create a docker container on the remote docker host
$ docker run -d -p 8080:80 --name httpserver nginx

so do that any docker command you type at this command prompt will be executed on that remote host

Reference:
(# 1) How to prove that docker engine never is installed on this computer? To switch to the command path next to run $./docker ps command

(# 2) Installing net-tools package on Ubuntu 16.04 (Xenial Xerus) by running the following command on terminal
$ sudo apt-get update
$ sudo apt-get install net-tools
(# 3) We can change the account's password by running the following command on terminal
$ sudo passwd {dockermanager}
(# 4) If have already set a password for SSH passphrase, we have to change it by the following command
To change directory to $HOME/.ssh $ cd ~/.ssh/
To change RSA passphrase $ ssh-keygen -f id_rsa -p

(# 5) We can download the release version of docker machine from docker/machine release page.
(# 6) Install Docker Machine https://docs.docker.com/machine/install-machine/
Machine Driver Generic https://docs.docker.com/machine/drivers/generic/

Docker 1.13.0 --- How to install Docker on Lubuntu 16.10 x64

2017-01-30T18:22:00.002+08:00

For a long time no go deep into the Docker's Knowledge!
Due to the job rotation, I have to spend some time to mange team member so that no time to write down something. In the duration of the Chinese holiday, I go to the Docker's Official Website to read the related document(# 1) and find out the some knowledge is a little different with before learning.
I will follow up the Docker's document to re-learn the installation step. For avoiding the forget memory in my mind, I will summary something as follows:

To remove the old Docker component if we ever install Docker or the system build in
$ sudo apt-get purge lxc-docker

To install extra packages for allowing Docker to use the aufs storage drivers
$ sudo apt update

$ sudo apt install curl linux-image-extra-$(uname -r) linux-image-extra-virtual

To install Docker by using the Docker's repositories
For setting up the Docker repository, we need to install some packages to allow apt to use a repository over HTTPS
$ sudo apt install apt-transport-https ca-certificates

and add Docker's official GPG key
$ curl -fsSL https://yum.dockerproject.org/gpg | sudo apt-key add -

and add the record of the stable repository into the /etc/apt/sources.list
$ sudo add-apt-repository "deb https://apt.dockerproject.org/repo/ ubuntu-$(lsb_release -cs) main"

To update the apt package index
$ sudo apt update

To verify the apt pull from the right repository
$ apt-cache policy docker-engine

To install the latest version of Docker(# 2)
$ sudo apt install docker-engine

To check Docker is running
$ sudo systemctl status docker

To verify the Docker is installed correctly
$ sudo docker run hello-world

Reference
(# 1). Get Docker for Ubuntu
(# 2). If we want to install a specific version of Docker Engine, not the latest version, we can use apt-cache madison command to list all available version.
$ apt-cache madison docker-engine

next to choose the the appropriate version
$ sudo apt-get install docker-engine=1.13.0-0~ubuntu-yakkety
(# 3). If we want to manage Docker as a non-root user, we need to create the docker group and add the specific user into this group.
To create the docker group
$ sudo groupadd docker

To add a logon user to the docker group
$ sudo usermod -aG docker $USER

Log out and log back again so that we can use docker command without sudo now.

VMware Workstation 12.5 --- How to install VMware Tools on Mac OS X guest

2016-12-17T20:59:00.001+08:00

If we want to learn Mac OS X environment without Mac device, we can use the VM on VMware or Virtualbox to taste it. In Google, we can find out more and more method to tell us how to install it. I ever try to install Mac OS 10.10 on vmware or virtulabox, but the screen display is not good in virtualbox because it need to correct some parameter. As to vmware, it is very simple if we can install VMware tool on VM guest.
In the moment, I will show you how to install vmware tools on Mac OS X.

To download the latest version of VMware Tools for Mac OS X from VMware CDS repository for Fusion http://softwareupdate.vmware.com/cds/vmw-desktop/fusion/

To extract com.vmware.fusion.tools.darwin.zip.tar until see the darwin.iso is placed on the "payload" folder

In the Virtual Machine Settings, to select use ISO image file by browsing darwin.iso

In the Mac OS X guest, the VMware Tools dialog box will appear so that click Install VMware Tools

It will trigger the installation of VMware Tool process so that we will click Continue button on Introduction tab.

On Destination Select tab still click Continue button

On Installation Type tab click Install button if we accept the default path.

Then key in the user name and password for installing new software.

To click Continue Installation button again

When the installation is successful, please click Restart button to finish the software installed.

Antivirus --- how to install Comodo x64 on Lubuntu/Ubuntu 16.04 x64

2016-10-09T18:19:00.001+08:00

According to the experience of the Comodo install on Lubuntu 14.04, I think it will be very simple for installing on Lubuntu 16.04 and the procedure is "to download the source from Comodo Official WebSite(# 1) next to install it".
When I do it by my thought, I get the error message that it tell me the dependence package "libssl0.9.8" loss.

In Lubuntu 16.04, the libssl1.0.0 package is installed, not include libssl0.9.8.

Maybe we can install Libssl0.9.8 on 16.04 but does not replace the older one as well, I think. That is both package can be existed on the same operating system. Then I will browse directly the package repository by using Ubuntu Package Search

To do the search package, we have to firstly set the related condition as "libssl0.9.8" keyword、Search on packages names only、"any" distribution、"any" region and so on.

To select the specific architecture as "amd64" and the latest version of the package

To click the right architecture as "amd64" and begin to download the libssl0.9.8 package

and install it by using GDebi tool.

Once the above process finish and no any error message, we will install the Comodo package again by executing the sudo dpkg -i cav-linux_x64.deb command or GDebi mode and the result is normal now.

To execute the Comodo Antivirus program, we will see a "Filesystem filter driver is not loaded!" issue error.

How to fix this problem? To download driver.tar(redirfs 0.11E12A) from "redirfs,avflt,dazuko" WebSite (# 2) next to replace the original file.

In the moment, I will update the antivirus pattern next to fix it.

To go to folder where you downloaded the driver next to replace the /opt/COMODO/driver.tar by using the sudo mv driver.tar /opt/COMODO/driver.tar command

To change the directory by using the cd /opt/COMODO command and install it by using the sudo ./post_setup.sh command.

Please follow the interactive mode as be careful at end of licence you NEED to accept with Y and then you can add email address, and choose Language 8 and so on.

Once the process finish and no any error, we have to restart the computer next to execute the initial scanning files/folders.

So does that the Comoda Antivirus is running on Lubutu 16.04 x64 normally.

Reference:

(# 1) Comodo source for Linux

(# 2) "redirfs,avflt,dazuko" driver

MikroTik Router --- How to add user-manager package into the RouterOS 6.37

2016-09-28T00:25:00.002+08:00

According to the MikroTik document, the User manager is a management system that can be used for:

HotSpot users;
PPP (PPtP/PPPoE) users;
DHCP users;
Wireless users;
RouterOS users.

Due to it is a separate package, this package is not installed in RouterOS by default if we log in the MikroTik Web Management by using the web browser next to click System --> Packages link.

MikroTik User Manager can be downloaded from the MikroTik web site download section . To find the package version is the the same as the RouterOS one next to download Extra packages

and extract the compressed file to the safety path, we will find one file user-manager-xxx-xxx.npk

In the Winbox web environment, we will choose Files menu and Explore ... button

Select this package for uploading this file.

and Reboot it

So do that we will see it in the package list now.

Due to the default user 'admin' without password, we have to launch the MikroTik terminal for setting it.

Then we can change the password for the 'admin' user by using the /tool user-manager customer set admin password= command. (# 1)

So do that we can log on customer web interface by connecting the http://Router_IP_Address/userman URL.

Reference :
(# 1). If we don't assign a new password for 'admin' user, the web interface cannot be login if use the empty password.

VirtualBox 5.1.6 --- Lubuntu/Ubuntu 16.04 uefi boot issue in virtualbox 5.1.6

2016-09-25T20:51:00.002+08:00

When I enable EFI setting in virtualbox 5.1.6 for installing Lubuntu 16.04 x64,

the O.S. after the installation is finished will go into EFI interactive shell, not boot into Grub normally.

How to resolve this problem?
To edit a startup.nsh script manually by using edit startup.nsh command next to add two lines as follows
FS0:
\EFI\ubuntu\grubx64.efi

Press Ctrl+S and Enter to save file and Ctrl+q to quit back to EFI shell.

To reboot OS again, the system will display the EFI shell firstly next to load Grub automatically.

Ubuntu/Lubuntu 16.04 --- How to install "free" Sophos antivirus on Lubuntu 16.04

2016-08-14T23:26:00.001+08:00

Recently, the Lubuntu upgrading fail from 14.04 to 16.04 directly so that I have to reinstall Lubuntu 16.04 freshly. When I install Comodo antivirus by Geb Utility, it stop and tell me the libssl0.9.8 miss.

I am not sure what happen so that search Google for answer. The Lubuntu 16.04 use libsso1.0.0 by default, not libssl0.9.8. I try to find out the alternative method to install the necessary version, but the result still fail. In the moment, I will give up the Comodo antivirus install on Lubuntu 16.04, although it work nicely on Lubuntu 14.04.

The Sophos antivirus for linux is another choice but it is command line only. For downloading it from the Sophos Official WebSite, we have to fill the form to get the download link.

Once the download finish, we will extract the compressed file next to execute sudo sh ./install.sh command in terminal.
In the install process, I choose the free Sophos version based on legal usage so that it just can be used on Command Line environment.

After the installation finish, we need to install update firstly by executing sudo /op/sophos-av/bin/savupdate command.

To check status of on-access scanning

As to the related CLI command, the following list will be the important one:
To enable on-access scanning by doing sudo /opt/sophos-av/bin/savdctl enable command

To disable on-access scanning by doing sudo /opt/sophos-av/bin/savdctl disable command

To turn live protection on by doing sudo /opt/sophos-av/bin/savconfig set LiveProtection true command

To turn live protection off by doing sudo /opt/sophos-av/bin/savconfig set LiveProtection false command

To scan Volume Boot Records by doing sudo savscan -bs=/dev/sda1 command

To scan Master Boot Records by using sudo savscan -mbr command

To scan System by doing sudo savscan / command

I need some time to realize whether its function is good and operation is friend. Maybe this content will be updated later.

RemoteApp --- How to run Windows Application on Ubuntu/Lubuntu 14.04 by WinConn and RemoteApp Tool 5.0.1.0

2016-04-23T14:34:00.001+08:00

If we want to run Windows Application in the Linux platform, we will think whether can use WINE to do it. Due to Wine (originally an acronym for "Wine Is Not an Emulator") is a compatibility layer capable of running Windows applications on several POSIX-compliant operating systems, it is not absolutely successful for every application to run it. Whether has the alternative method to do it?
By google some information, it did have a method "RemoteApp" to get the target.
How to do it? by RemoteApp Tool and WinConn utility!

Windows Prerequisite

RemoteApp is a Microsoft technology that extends Remote Desktop Services to allow seamless display of a remote application (as if it were a native application on the local computer).

At first, we have to configure RemoteApp on Windows platform next to share some Windows Application. Usually, RemoteApps are hosted on Windows Server 2008 (and above) version besides figured out how to host them on Windows 7 (# 1).

Thanks Kim Knight built a GUI based application called RemoteAppTool so that we can be easy to enable RemoteApp function on Windows platform besides Windows 7.

RemoteApp Tool is a GUI utility that allows you to create/manage RemoteApps hosted on Windows (7, 8, 10, XP and Vista) as well as generate RDP and MSI files to use on the clients.

RemoteApp Tool Features

Create and manage RemoteApps on Windows desktops and servers.
Generate RDP files.
Generate and customise MSI installers (requires free WiX Toolset installed).

Use a Remote Desktop Gateway.
Set options on RD hosts such as session timeouts.
Select and use icons for your apps.

Windows Requirements

Microsoft .Net Framework 4 or later
WiX Toolset (if you want to create MSIs)
Workstation：Windows XP SP3 -or- Windows 7 Enterprise or Ultimate -or- Windows 8 Enterprise -or- Windows 10 Enterprise or Education

-or-

Server：Windows Server 2008 or newer

Note: If you try to host RemoteApps on any other edition of Windows (eg Win 7/8/10 Professional or Home), the tool will run but RemoteApps will not work. The RDP client will appear to be connecting, then just disappear with no error shown.

Ubuntu Prerequisite

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP) and FreeRDP v1.x can be downloaded here if the Ubuntu does not have it available or you want the latest version of FreeRDP. (# 2)

FreeRDP's Key Features
RemoteFX

        Both encoder and decoder

        SSE2 and NEON optimization

        NSCodec

        RemoteApp

        Multimedia Redirection

            ffmpeg support

            Network Level Authentication (NLA)

                NTLMv2

                Certificate validation

                FIPS-compliant RDP security

Note: the 2 key features are the support on Ubuntu for RemoteFX and RemoteApp.

Due to the FreeRDP is a command line tool, we will choose another GUI application as WinConn that will running RemoteApp via FreeRDP so simple. WinConn simplifies creation, management and desktop integration of remote windows applications on Ubuntu. WinConn uses RemoteApp technology and provides a seamless user experience with Windows Applications on Ubuntu.

WinConn Features

Create and manage remote application profiles
Access local folders from remote application
Local printer redirection
Remote sound redirection
Create desktop launcher for your applications
Remote applications integrated in Unity menu
Application indicator for fast app execution
Import profiles, created in Remmina
Import remote applications, packaged in RDP files

In the following scenario, we will introduce how to execute a Windows RemoteApp on the Ubuntu desktop.

Enable Remote Desktop function on Windows 10

In the moment, I will choose Windows 10 Enterprise version for installing the RemoteApp Tool. In the "Control Panel\System and Security\System" dialog, we will select/click "Remote Settings" in the upper-left.

In the "System Properties" dialog, we will select "Allow remote connections to this computer" option next to click Select Users... button.

In the "Remote Desktop Users" dialog, click Add... button next to choose the UserID as authorized for remote desktop.

Execute RemoteApp Tool on Windows 10

When we make sure that Microsoft .Net Framework 4 or later has already been installed on Windows, we will download the RemoteApp Tool ,extract this compressed file and execute it directly. So does that the RemoteApp GUI will pop up now.

Publish a Windows Application on Windows 10

In the RemoteApp GUI dialog, click + button next to use Explorer to choose one program that want to publish the windows application and click Open button.

So does that all the rest of the fields in the RemoteApp Tool menu should be filled in automatically. If nothing to change. click Save button so that this application is available from Windows 10 as a Windows RemoteApp now.

Install WinConn on Ubuntu 14.04

If the Ubuntu version (# 3) is 13.04, 13.10, 14.04 and so on, we have to install the missing dependencise next to install WinConn package.

# sudo apt-get install freerdp-x11 gir1.2-appindicator3-0.1 gnome-user-guide libfreerdp-plugins-standard libfreerdp1 libyelp0 python-apport python-crypto python-httplib2 python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri python-oauth python-problem-report python-secretstorage python-simplejson python-wadllib python-zope.interface yelp yelp-xsl

# wget https://launchpad.net/~realender/+archive/ubuntu/winconn/+files/winconn_0.2.14-1_all.deb

# sudo dpkg -i winconn_0.2.14-1_all.deb

Configure/Start WinConn on Ubunt 14.04

Now let's create some directory in the Linux system that we might use for any and all exchange of files to/from Ubuntu and Windows 10. If it is not in the home directory or "Documents" directory, we have to make sure that there are READ/WRITE privileges to wherever we create it.

# sudo mkdir -p /opt/win-remoteapp

# sudo chmod 777 /opt/win-remoteapp

Start WinConn and click + button, the configuration setting will show up in the right panel.

Once we finish the related setting(for example: Application entry is RemoteApp Name that we just published), please remember to click Save button

After you've done this you will see a new Launcher Icon on your Ubuntu Desktop which is labeled appropriately enough… oCam

Execute this Application

So does that oCam will launch now.

Reference：

(# 1) You can refer to the whole process here --- how to manually edit the registry and manually create RDP files on Windows 7.

(# 2) In Ubuntu 14.04, the FreeRDP in the Repository is v1.02 so that satisfy the prerequisite.

(# 3) We can know which version of ubuntu or desktop environment by using the lsb_release -a command

(# 4) RDP Wrapper Library

PlayOnLinux 4.2.2 --- How to correct the Chinese Font of the PlayOnLinux with Wine 1.9.6(x86) on Ubuntu/Lubuntu 14.04 x64

2016-04-02T22:42:00.002+08:00

The PlayOnLinux (# 1) is a front-end of the wine and it can let us easily install some Windows software or Games on Linux. When I install Evernote 5.8.x (# 2) on Lubuntu 14.04 and open this program, I find out some Chinese font cannot be showed.

For realizing this problem, I search some information by Google and understand what happens. That is "Tahoma" is the default font of the Wine but it can not display the Chinese font normally.

How to resolve it? To install the Chinese font and add some registry value.

In the moment, I will download the Google Android "Droid" font and save the "DroidSansFallback.ttf" as the "~/.wine/drive_c/windows/fonts/" directory.

To open a file with ".reg" extension and add some registry key/value (# 3) in the content. It is import to save this file with "Big5" codec otherwise it will fail when import this reigstry file later.

In Wine tab, click the Registry Editor button

Once open up the Wine registry editor, click the Registry menu next to select the Import Registry File...

So does that the HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\FontSubstitutes parameter will be changed as follows:

Re-open the Evernote again, we will see the display font is normal now.

Reference:

(# 1). Where to download/install the latest PlayOnLinux software on Ubuntu

(# 2). After install Evernote 5.9.x version, it just can be viewed but no write function.

(# 3). The following content refer to [教學] 圖解 wine 入門 [論壇 - Ubuntu 文件資源]

REGEDIT4

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\FontLink]
"FontLinkControl"=dword:00004000
"FontLinkDefaultChar"=dword:00003000

/* 平滑化(anti-alias) 備註 */
/* 如果覺得開了之後字體難看，把三個 Y 改成 N，有些字型要開啟平滑化才好看 */
[HKEY_CURRENT_USER\Software\Wine\X11 Driver]
"ClientSideAntiAliasWithCore"="Y"
"ClientSideAntiAliasWithRender"="Y"
"ClientSideWithRender"="Y"

/* 平滑字型 */
[HKEY_CURRENT_USER\Control Panel\Desktop]
"FontSmoothing"="2"

/* 替換字型1 */
/* 這裡以 Droid Sans Fallback 為例，請自行改成你要的字型名稱 */
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\FontSubstitutes]
"Arial Baltic,186"="Droid Sans Fallback"
"Arial CE,238"="Droid Sans Fallback"
"Arial CYR,204"="Droid Sans Fallback"
"Arial Greek,161"="Droid Sans Fallback"
"Arial TUR,162"="Droid Sans Fallback"
"Courier New Baltic,186"="Droid Sans Fallback"
"Courier New CE,238"="Droid Sans Fallback"
"Courier New CYR,204"="Droid Sans Fallback"
"Courier New Greek,161"="Droid Sans Fallback"
"Courier New TUR,162"="Droid Sans Fallback"
"Helv"="Droid Sans Fallback"
"Helvetica"="Droid Sans Fallback"
"MS Shell Dlg"="Droid Sans Fallback"
"MS Shell Dlg 2"="Droid Sans Fallback"
"PMingLiU"="Droid Sans Fallback"
"新細明體"="Droid Sans Fallback"
"Tahoma"="Droid Sans Fallback"
"Times"="Droid Sans Fallback"
"Times New Roman Baltic,186"="Droid Sans Fallback"
"Times New Roman CE,238"="Droid Sans Fallback"
"Times New Roman CYR,204"="Droid Sans Fallback"
"Times New Roman Greek,161"="Droid Sans Fallback"
"Times New Roman TUR,162"="Droid Sans Fallback"
"Tms Rmn"="Droid Sans Fallback"

/* 替換字型2 */
[HKEY_CURRENT_USER\Software\Wine\Fonts\Replacements]
@="Droid Sans Fallback"
"Arial"="Droid Sans Fallback"
"Fixedsys"="Droid Sans Fallback"
"Microsoft Sans Serif"="Droid Sans Fallback"
"MingLiU"="Droid Sans Fallback"
"MS UI Gothic"="Droid Sans Fallback"
"PMingLiU"="Droid Sans Fallback"
"Simsun"="Droid Sans Fallback"
"Songti"="Droid Sans Fallback"
"System"="Droid Sans Fallback"
"Tahoma"="Droid Sans Fallback"
"Terminal"="Droid Sans Fallback"

/* 取代字型 */
"Microsoft Sans Serif"="DroidSansFallback.ttf,Droid Sans Fallback"
"SimSun"="DroidSansFallback.ttf,Droid Sans Fallback"
"Tahoma"="DroidSansFallback.ttf,Droid Sans Fallback"
"PMingLiU"="DroidSansFallback.ttf,Droid Sans Fallback"
"Lucida Sans Unicode"="DroidSansFallback.ttf,Droid Sans Fallback"

VMWare Workstation 12 Pro --- How to repair the vmdk disk if the defragmentation fail

2016-02-28T21:20:00.002+08:00

I am not sure why the defragment fail when want to defrag the VMDK disk on the VMWare Workstation. It just tell me that the specified vritual disk needs repair!

How to do it?
As before, I will please Google help to search the related information for resolving this problem. Thanks Google let me to find out one KB on the VMWare Official Web. That is KB --- Repairing a virtual disk in Workstation (2019259)

According to this content, it clearly teach us to do the following command# /usr/bin/vmware-vdiskmanager -R <path of the vmdk(virtual disk)>
Note: Where < path of the vmdk(virtual disk)> is the folder path to the virtual disk that appeared in the error.

Once the above process finish successfully, we can do the defragment virtual disk now.

DDNS --- How to register & configure DDNS on FreeDNS/DD-WRT AP

2016-01-09T20:48:00.001+08:00

If we don’t buy any Domain Name and use the dynamic public IP such as ADSL, how to let Internet user access the personal system as website or mail? Maybe DDNS can resolve this problem because it will automatically update the dynamic public ip so that the dns name will never been changed even after the dynamic ip is changed as AP reboot or power on.

Due to the personal AP with DD-WRT firmware has DDNS feature, I will choose the FreeDNS.afraid.org to register a free DDNS service for me.
How to do it?
Register FreeDNS and create an A record
To create an account on freedns.afraid.org and verify it by activating the received email, we will visit this Web page and click [ Mail Menu] link in left panel.

The signup page will show up. Please key in UserID and password next to click Login button

Click [ Subdomains ] link

Click Add a subdomain link

In the Add a new subdomain diaglog, select a type such as “A”, define a subdomain such as “dwlab”, pick one of the available domains such as “mooo.com(public)”, enter the current WAN IP of AP in the Destination field and leave TTL & Wildcard setting as the default next to click Save! button
So does that the new & free subdomain such as “dwlab.mooo.com” has already been added.

To manually set the DNS for the subdomain to the WAN IP of the AP, please Click [Dynamic DNS] –> Direct URL link

The explorer will be opened. Please select some string as follows mark and copy it to the system’s clip board.

Set up DDNS on AP (# 1)To log in to the DD-WRT AP, select “freedns.afraid.org” as the DDNS service, enter the User Name and Password that belong to the freedns.afraid.org account, enter the full suddomain such as “dwlab.mooo.com” + comma such as “,” + paste the unique udpate token in the Hostname field
Once click Apply Settings button, we can see messages appear that verify the settings are working at the bottom of the DDNS status.

So do that we can ping this subdomain now.

Reference
(# 1) dd-wrt Dynamic DNS

hMailServer 5.6.4 --- How to install hMailServer with SQL Server 2016 CTP 3.1 on Windows Server 2016 TP4

2016-01-03T17:37:00.002+08:00

If we want to find a free, easy setup, email server on windows platform, maybe we can choose an open source product “hMailServer”.
It support the common email protocols as IMAP, SMTP, POP3 and its license is under AGPLv3 (# 1) that it is free in most commercial scenarios.

For using hMailServer, we need to realize what is the system requirements at first next to install/configure/active it.
According to the latest document in hMailServer Official Web, the current version as hMailServer 5.6 can be confirmed on Windows XP with Service Pack 3, Vista, 7, 2003, 2008 and 2012.
It also depends on Database server as built-in a light-weight version of MSSQL or select the other database engine as MySQL 4 or 5, Microsoft 2000 or 2005 or 2008, PostgreSQL 8 by officially being tested.

After installing the SQL Server 2016 CTP 3.1 (# 2), we will download the latest version “hMailServer” from Official Web.

and double click this file so that the setup wizard will pop up. Click Next > to continure for installing hMailServer.

Due to the server and management tool will install on the same computer, we will select all check box next to click Next > button

We will use external database engine so that choose this option next to click Next > button.

To create a folder for allocating the hMailServer component together (# 3) so that define a name next to click Next > button

Please define a password for managing the hMailServer system in the future.

In the installation process, we need to enter this password for initializing hMailServer database at the first time.

In the hMailServer database setup wizard, click Next > button for beginning to create a new hMailServer database now.

To select “Create a new hMailServer database” option next to click Next > button.

Select “Microsoft SQL Server” option next to click Next > button.

Enter the server connection information as database server address, database name, authentication and so on next to click Next > button

Due to the hMailServer service is dependent on a database service on this compuer, we need to set the hMailServer service dependency as “SQL Server (MSSQLSERVER)(MSSQLSERVER)” for ensuring the database service is running before hMailServer is started.

To click Close button to complete the hMailServer database setup wizard.

Also click Finish button to complete the hMailServer setup wizard and launch “hMailServer Administrator”.

Select the Host name and hMailServer Username next to click Connect button

Of course, need to enter the hMailServer pasword.

Until now, the hMailServer system has already been finished the installation process.

Reference
(# 1)   Affero General Public License & 因應網路時代與雲端應用而生的 AGPL-3.0 授權條款
(# 2)   Install SQL Server 2016 from the Installation Wizard (Setup)
(# 3)   When we do it, the hMailServer executable program will be located under this folder.

Windows Server 2016 --- How to resolve the Edge Browser cannot be explored by Built-in Administrator account on Windows Server 2016 TP4

2016-01-03T14:01:00.002+08:00

If we login the built-in Administrator account and navigate Edge Browser on Windows Server 2016 TP4, we will get the error message “Microsoft Edge can’t be opened using the Built-in Administrator account. Sign in with a different account and try again”

How to get around this message?Open the local security policy on Windows Server 2016 TP4 by typing secpol.msc at the command prompt.

In the local security policy dialog, expand Security Settings –> Local Policy –> Security Options and set the policy “User Account Control Admin Approval Mode for the Built-in Administrator account” to Enabled.

AS-IS

TO-BE

To restart the OS for taking effect the change so that the Edge Browser can be opened by Administrator account now

ZeroShell 3.4.0 ---- How to quickly install ZeroShell on VMware "vmdk" disk.

2015-12-26T23:52:00.001+08:00

I want to build a Router device on virualization environment for message exchange and hope it is simple and easy to create/setup one. In Google search, I find out an open source software “ZeroShell” and it is comfortable for installing and managing this.
ZeroShell is Linux Router with more feature as router, firewall, Radius and so on. Although someone has already share the installation methond on Internet, I just think whether it can convert image file so that don’t need to do the steps too much.
How to do it?

Download ZeroShell Image
Go to the ZeroShell Official Web and download the latest img file.Extract xxx.img.gz file to xxx.img next to confirm whether exist a QEMU-IMG tool. (# 1)

Convert .img to .vmdk image

If there is ever install qemu-utils package on debin/ubuntu system, we can directly by using the qemu-img convert –f raw xxx.img –O vmdk xxx.vmdk command (# 2)If it is installed on windows platform, we will do the qemu-img convert –O vmdk xxx.img xxx.vmdk command

When the vmdk file is created, we will begin to create a New Virtual Machine on wmware production as wmware workstation.In the configuration wizard, we can select the following parameter:
      Guest Operation System: Linux
      Version: Other Linux 3.x kernel 64-bit
      Memory: large than default value 384 MB
      Network Connection: at least large than two interface
      Virtual Disk Type: IDE
      Disk: Use an existing virtual disk as the converted vmdk file
It is important to chose the boot mode is BIOS, not EFI mode !!!
Once the setting is completed, we can start this VM and beging to setup the IP Address and Default Gateway on console mode now.

Reference:
(# 1)   In Ubuntu/Lubuntu Trusty 14.04, we can install QEMU-IMG tool by using the sudo apt-get install qemu-utils command

           In Windows Platform, we can download/install QEMU binaries for Windows

(# 2)   “qemu-img” Disk Image Utility

KVM 2.0.0 --- How to install KVM and Virtual Machine Manager on Lubuntu 14.04

2015-11-29T16:21:00.004+08:00

In Linux environment, we have other choice to create virtual machines besides VirtualBox or VMware. That is KVM.

KVM (Kernel-based Virtual Machine) is a virtualization extension for the Linux Kernel. We can use KVM to run both Windows and Linux in virtual machines.

The following guide will explains how to install and use KVM for creating and running virtual machines on an Lubuntu 14.04 LTS Desktop.

Preprequisite Check

KVM will work only if the CPU is suitable for Intel VT or AMD-V hardware virtualization. We can run the sudo egrep -c '(vmx|svm)' /proc/cpuinfo command to find whether the cpu supports virtualization features

※ The 0 value means the processor doesn't support VT-x extensions, but values greater than 1 mean it does.

Check the hardware compatible by using sudo kvm-ok command (# 1)

To see what kernel is 32-bit or 64-bit by using uname -ri command (# 2)

※ In 32-bit kernel, the memory size of a VM will be limited to 2GB and only can install 32-bit guest VM.

Install KVM and other packages

By doing sudo apt-get update command, downloads the package lists from the repositories and "updates" them to get information on the newest versions of packages and their dependencies.

Install Qemu package

For enabling KVM hypervisor, we can install Kernal based Virtual machine(qemu-kvm) and CPU emulator(qemu) by using the sudo apt-get install qemu-kvm qemu command.

Install libvirt library

For interacting with the virtualization capabilities of recent versions of Linux, we can install libvirt package by using sudo apt-get install libvirt-bin command

Install network utility

For setting up networks on VM, we can install the bridge-utils package by using sudo apt-get install bridge-utils command

Install graphical interface

For managing KVM based virtual machines, we can install Virt-Manager(Virtual Machine Manager) graphical tool by using the sudo apt-get install virt-manager command.

※ On Lubuntu/Ubuntu, we can directly install another tool “ubuntu-vm-builder” that can be used for provisioning Ubuntu builds by using the sudo apt-get install ubuntu-vm-builder command.

Delegate permission

In the moment, only the root user and users in the libvirtd group have permission to use KVM virtual machines. So that we have to add the specifial user account to the libvirtd group by using the sudo adduser libvirtd command

or using sudo adduser ‘id -un’ libvirtd command for logon account.

After do it, we have to log off and log on so that the user can run virtual machine now.

Verify Installation

Verify whether the KVM daemon is up and running by using the lsmod | grep kvm command.

Check kvm daemon version by using the kvm --version command

Verify whether the libvirt-bin daemon is up and running by using the sudo service libvirt-bin status command.

Check libvirt-bin daemon version by using the libvirtd --version command

Check whether kvm and libvirtd exist in /etc/group by using sudo cat /etc/group command

Check whether libvirt-qemu and libvirt-dnsmasq exist in /etc/passwd by using sudo cat /etc/passwd command

Check KVM installation status by using the sudo virsh -c qemu:///system list command

Network Setup (virbr0 NAT interface)

The default network mode is the User mode and uses a predefined virbr0 (# 3) brigge which is NAT routed to the guest computer. The NAT routing uses the kernel's ip_forwarding feature and iptables.

To see the default User network setting by using the sudo virsh net-dumpxml default command

When the libvirt default network is running, you will see an isolated bridge device. This device explicitly does *NOT* have any physical interfaces added, since it uses NAT + forwarding to connect to outside world.

Create a new VM

Once the installation completes, we can lanuch Virtual Machine Manager in GUI mode by using the sudo virt-manager command. (# 4)

To right-click the localhost(QEMU) and click New in menu, it will start a wizard for creating the new virtual machine.

Reference:

(# 1) If we run the kvm-ok command, we can realize whether VT-x funciton is switched on and need to enable VT-x in the BIOS setting.

If this commad never be installed, we can install cpu-checker package by using the sudo apt-get install cpu-checker command to help evaluate the CPU feature.

(# 2) Because KVM is not compatible with Xen, make sure Linux is not running a Xen kernel by running the uname -a command.

If you see output similar to “2.6.18-164.el5Xen”, a Xen kernel is running and must be stopped or remove before install KVM.

(# 3) To disable virbr0 NAT interface by using the following command

# virsh net-destroy default

# virsh net-undefine default

# service libvirtd restart

(# 4) If you don't want to run as root, the user you want to use needs to have rw access to /dev/kvm

(# 5) After installing the libvirt and its GUI front-end virt-manager, the defalut location of VM image will be created on /var/lib/libvirt/images directory.

Eclipse 4.5.1 --- How to install Eclipse 4.5.1 on Lubuntu 14.04

2015-11-22T22:52:00.001+08:00

Since Eclipse Mars(4.5 or later) release, we have another choice to install Eclipse package on any platform. It is very simple and quick way to lead us to do it, not do a self-extracting compressed file. That is Eclipse Installer.

How to do it?

Download the Eclipse Installer from Eclipse Official WebSite and choose the right version for the platform.

Extract the download file next to launch the Installer "eclipse-inst" file by sudo or directly execution.

Select a package and click it that we want to install the Eclipse IDE for java EE Developers

Select the installation folder where we want Eclipse to be installed next to click INSTALL button.

If install it by normal account, the suggestion is the installation folder need to choose under the home directory of this account.

Click Accept Now button to accept the Eclipse Foundation Software user Agreement

The Installing process is running and will friendly tell us that it will be taking longer time.

Once the installation is complete and then we will click the LAUNCH button.

Select a workspace and enable check box about “Use his as the default and do not ask again” next to click OK button

So does that the Eclipse IDE function will be ready now.