Windows and Linux Networking

Getting Windows Client Basic Information from Command Line.

2017-09-21T13:28:00.002+05:30

Getting windows client some basic information from command line quickly.

1) Quickly get computer Hostname and domain information.

systeminfo | findstr /c:"Host Name" /c:"Domain"

2) quickly get OS information

systeminfo | find "OS"

3) Quickly get System information

systeminfo | find "System"

systeminfo | find "System" & wmic bios get serialnumber

4) Quickly get DNS client configuration

ipconfig /all | Findstr /c:"Dns" /c:"DNS"

5) Quickly get DHCP client configuration

ipconfig /all | Findstr /c:"DHCP" /c:"IPv4"

6) Quickly get Memory information.

systeminfo | find "Memory"

GETTING SYSTEM INFORMATION FROM WINDOWS POWER SHELL

2016-01-15T02:44:00.000+05:30

GETTING SYSTEM INFORMATION FROM WINDOWS POWER SHELL

Bellow are the some useful Power Shell command to get system information.

1. How to get bios version?

(get-wmiobject win32_bios).BiosVersion

2. How to get serial number?

(get-wmiobject win32_bios).serialnumber

3. How to get motherboard information?

get-wmiobject win32_BaseBoard

get-Wmiobject win32-ComputerSystem

4. How to get CPU information?

get-wmiobject win32_Processor | Fl Manufacturer,Name,NumberofCores

5. How to get network adaptor information?

get-wmiobject win32_NetworkAdapter –property * | FT Name, Manufacturer, Description, MACAddress, Speed

6. How to get Memory information?

get-wmiobject win32_PhysicalMemory | FL Manufacturer, SerialNumber, PartNumber, Speed, Capacity

How to join Computer to Specific OU to apply group policy for computer accounts.

2015-09-22T18:13:00.001+05:30

How to create computer account in specific OU at the time of joining to Domain.

Suppose you have created OU for each location (Department) and apply different group policy for computer. E.g you have created security group for each location or Department and add member user from each location (Department) and configure group policy to add specific Security group to local Administrators security group to give local admin right to member of Active Directory Security group.

For that In Active Directory you identify and move all computers accounts to particular OU to apply group policy for computer. when you check you find it working expected for existing computer accounts.

But When you Add (Join) new computer to Active Directory Domain. New Computer account will be crated at default location in Computers container so it will not apply group policy to give local Admin right to the user.

To fix this issue
1) You have to move computer account every time you add new computer to domain.
2) OR You have to create computer account in OU manually before joining to domain.
3) OR provide OU name at time when join to domain.

I like third option as it will give correct permission at computer first logon.

bellow is the Power shell command that will join computer to domain and create computer account in specific Organization Unit (OU)

suppose :-

Your Domain Name is : Example.com
Domain Netbios Name : Example
OU for locaion : India-Pune
OU for Computer under OU India-Pune : Pune Computers
User having permission to join computer : Sandeep

Click on Start button --> Type Powershell in search box --> right click Windows Power shell --> Select Run as Administrator --> Click Yes in next windows.

Now type bellow command :-

Add-Computer -DomainName Example -Credential Example\sandeep -Passthru -OUPath 'OU=India-Pune,OU=Pune Computers,DC=Example,DC=Com'

Press Enter and Windows will ask you for password. Provide the password for user in our example password for Example\Sandeep and click ok. If no any error for computer name limit, networking, login credential and OU path then you will successfully connect to domain and new computer account will be automatically created at given OU path.

restart the computer

shutdown -r -t 00

now when computer boot first time group policy will be apply set for that OU.

When you join your computer to Windows Active Directory Domain your computer account will be create

How to print or display colorful text on screen in terminal or in bash scripting with echo command

2014-03-18T20:27:00.001+05:30

How to print or display colorful text on screen in terminal

It is always good practice to show your script related information in colorful text in terminal to highlight or attention to the user. for example you can give output of script test as successful or fail in Green and red color, you can also display error message in Red color so user can attention for result\Output.

There are many method to do this for example with help of sed , awk , echo and may more. I will show you how to display text in colorful output with the help of echo command.

suppose you wanted to display only Hello world in Red color. you can do this with echo like follow

echo -e "\e[0;31m Hello World \e[om"

or
echo -e "\033[31m Hello World \033[0m"
Hello World

suppose you wanted to display only Hello in Red color and World in Blue then your command look like follow

echo -e "\e[0;31m Hello \e[0;34m World \e[0m"
or
echo -e "\033[31m Hello \033[34m World \033[0m"
Hello World

For Bold text Hello World command looks:

echo -e "\e[1m Hello World\e[0m"
or
echo -e "\033[1m Hello World\033[0m"
Hello World

to underline the Hello world command is as follow:

echo -e "\e[4m Hello World\e[0m"
Hello World
echo -e "\e[4;31m Hello World\e[0m"
Hello World

Following are some other color code you wanted to use in your script.

Black 0;30
Red 0;31
Green 0;32
Orange 0;33
Yellow 1;33
Blue 0;34
Purple 0;35
Cyan 0;36
Light Gray 0;37

How to check File or Folder exist in Bash Scripting

2014-03-07T20:56:00.000+05:30

How to check file of folder exist in Bash scripting.

When we write any bash scripting many time, we wanted to performing any task base on validating for file or folder is exist or not . There are many ways to check for file or folder in Bash Scripting. In following example we will see how to check file or folder exist or not to do some task.

Suppose you wanted to check if folder name Backup exist in path /home/Backup and if it does not exist then create new folder as Backup in /home directory and if it exist the display the massage saying Backup folder exist. and you also wanted to check if file name backup.tar exist in path /home/Backup directory and if it doest not exist then create tar file as backup.tar in /home/Backup directory and if it exist then display massage that saying backup.tar file exist.

!#/bin/bash

# SCRIPT: backup.sh
# AUTHOR: Your Name.
# CONTACT : Your Contact details.
# DATE: 06th Mar, 2014
# REV: 1.0 A

# PURPOSE: To check Backup folder and backup.tar file exist or not. If not exist then create Backup directory in path /home and backup.tar file in /home/Backup direcoty.

# 1st Way to check folder exist.

test -d /home/Backup
if [ "$?" -eq 0 ]
then
   echo "\"/Backup\" Directory exist in /home"
else
   echo "\"/Backup\" Directory does not exist in /home"
   echo "Creating /\"Backup\" Directory in \"/home\" Directory."
   mkdir /home/Backup
fi

# 2nd Way to check folder exist.

if test -d /home/Backup
then
   echo "\"/Backup\" Directory exist in /home"
else
   echo "\"/Backup\" Directory does not exist in /home"
   echo "Creating /\"Backup\" Directory in \"/home\" Directory."
   mkdir /home/Backup
fi

# 3rd Way to check folder exist.

if [ -d /home/Backup ]
then
   echo "\"/Backup\" Directory exist in /home"
else
   echo "\"/Backup\" Directory does not exist in /home"
   echo "Creating /\"Backup\" Directory in \"/home\" Directory."
   mkdir /home/Backup
fi

# There are also many other ways to check folder. for like using "ls -ld /home/Backup" command .
# To check file method is same as above just replace -d option with -f if you wanted to check file and if you wanted to check link replace with -l option.

# 1st Way to check file exist.

test -f /home/Backup/backup.tar
if [ "$?" -eq 0 ]
then
   echo "\"backup.tar\" file exist in /home/Backup Directory"
else
   echo "\"backup.tar\" file does not exist in \"/home/Backup\" Directory"
   echo "Creating \"backup.tar\" file in \"/home/Backup\" Directory."
   cd /
   tar -cvpf /home/Backup/backup.tar /home/sandeep
fi

# 2nd Way to check file exist.

if test -f /home/Backup/backup.tar
then
   echo "\"backup.tar\" file exist in /home/Backup Directory"
else
   echo "\"backup.tar\" file does not exist in \"/home/Backup\" Directory"
   echo "Creating \"backup.tar\" file in \"/home/Backup\" Directory."
   cd /
   tar -cvpf /home/Backup/backup.tar /home/sandeep
fi

# 3rd way to check file exist.

if [ -f /home/Backup/backup.tar ]
then
   echo "\"backup.tar\" file exist in /home/Backup Directory"
else
   echo "\"backup.tar\" file does not exist in \"/home/Backup\" Directory"
   echo "Creating \"backup.tar\" file in \"/home/Backup\" Directory."
   cd /
   tar -cvpf /home/Backup/backup.tar /home/sandeep
fi

# END

you can use any one method which is comfortable to you .

How to upgrade Windows 2008 R2 SP1 Hyper-V to Windows 2012 R2 Hyper-V (step-by-step)

2014-02-15T11:49:00.001+05:30

I am planning to move my Hyper-V environment to latest Windows 2012 R2 from my current Windows 2008 R2 SP1 environment. For that I created test environment as my current to test several things. During that I came across lots of challenges, especially with export-import method and with the VM’s having checkpoints taken in a running states.

After doing some testing I found two methods to do the up-gradation.

1) First method is to use an intermediate server (this can be used if you already exported your VM and deleted the original VMs). In this method you will export the VM from the 2008R2 host and then import in 2012 Hyper-V host (no need to start it up) and then export it again from the 2012 Host and import it in 2012 R2 host.

2) The Easiest way will be to turn off the VM on the hyper-V 2008R2 host and stop the VMM service on the host server as well to unlock all VM files. The next step is to copy all Virtual Machine files/folder including the VHDs, XML, etc. to the server 2012R2 and import them directly.

I decided to go with second method to avoid use of another Hyper-V server and perform format & reinstall method, so that it will stop VMM Service while format. There is a critical prerequisite for this approach. None of the virtual machines files should reside on the C: drive. Sadly, the designers of Hyper-V continue to use a subfolder on the C: drive as the default locations to store The VM XML files & Virtual Hard Disks.

(I will highly recommend trying upgrade in your test environment first & having a backup while doing anything in your production environment).

I created my test setup as below.

Installed Windows 2008 R2 SP1 with Hyper-V role, made sure that management OS partition and VM storage are on different drives.

Created test VM with three snapshots. First two snapshots (Snap1 & Snap2) taken while VM in running state & third snapshot (Snap3) taken while VM in stopped state.

I performed below Step-by-step to complete my test upgrade.

1) Make sure that all your VMs are in “Off” state.

2) Insert Windows 2012 R2 installation disk in to DVD drive and install Windows 2012 R2 by formatting existing Windows 2008 R2 SP1 OS drive. (Make sure that you are keeping your VMs on different drive other than OS drive.)

3) After installing the OS, install Hyper-V role, create virtual switch and also install latest windows patches.

4) Now open Hyper-V Manager in newly installed Windows 2012 R2 hyper-V server.

5) Click on Import Virtual Machine in Actions pane. It will open Import Virtual Machine wizard. Click next on below screen.

6) On next screen provide the path where VM to be imported is stored. Click next.

7) On below screen select the VM to be imported. Click Next.

8) Select “Register the virtual machine in-place (use existing unique ID)” and click next.

9) On below screen select the location where VM hard disks are stored (in my case it was same). Click next.

10) If you are having snapshot of VM taken in running state, during VM loading process it will give you below “Saved State Error “, Click on “Delete Saved State”.

(I have got this warning for first two snaps, as I took them while vm in running state.)

10) If you have configured virtual network switch with different name than that was in Windows 2008 R2 SP1 Hyper-V, it may ask you to specify VM network to connect to. Specify the same and click next.

11) On summary page, review summary and click finish. It will import the VM.

Post Import tests & tasks.

12) After completing these steps, I performed some tests. Like starting VM.

13) Applying Snap1 (you will need to start VM after applying Snap as saved state has been deleted).

14) Applying Snap2

15) Finally you will also need to upgrade Guest OS Integration Components for each VM.

Hope this will be helpful to you. Also share if you have any suggestions.

Step by Step : How to backup data using tar

2013-12-20T13:01:00.000+05:30

Backup your data using tar

To backup or restore your data using tar always start backup/ restore from root (/) directory. To go to root (/) type the command

cd /

if you don't start backup from root (/) directory then it will not restore data its original location. because when creating archive with tar. tar alway remove leading "/" from the member and that may be problem when restoring data at original location.

See the following example. I have started backup from home directory not from root (/) directory.

root@sandeepk:~# tar -cvpf /backup/exampleone.tar /home/sandeep/test
tar: Removing leading `/' from member names
/home/sandeep/test/
/home/sandeep/test/test3
/home/sandeep/test/test7
/home/sandeep/test/test2
/home/sandeep/test/test8
/home/sandeep/test/testmd/
/home/sandeep/test/testmd/test3
/home/sandeep/test/testmd/test7
/home/sandeep/test/testmd/test2
/home/sandeep/test/testmd/test8
/home/sandeep/test/testmd/test5
/home/sandeep/test/testmd/test6
/home/sandeep/test/testmd/test4
/home/sandeep/test/testmd/test9
/home/sandeep/test/testmd/test1
/home/sandeep/test/test5
/home/sandeep/test/test6
/home/sandeep/test/test4
/home/sandeep/test/test9
/home/sandeep/test/test1

Now test the data using following command

root@sandeepk:~# tar -dvf /backup/exampleone.tar
home/sandeep/test/
tar: home/sandeep/test: Warning: Cannot stat: No such file or directory
home/sandeep/test/test3
tar: home/sandeep/test/test3: Warning: Cannot stat: No such file or directory

It will be give warning massage that No such file or directory. tar is checking data home/sandeep/test/ and not from /home/saneep/test

To resole the issue you should always start your backup from root directory (/)
and now i will take another backup same data but from root directory

root@sandeepk:~# cd /
root@sandeepk:/#

root@sandeepk:/# tar -cvpf /backup/exampletwo.tar home/sandeep/test
home/sandeep/test/
home/sandeep/test/test3
home/sandeep/test/test7
home/sandeep/test/test2
home/sandeep/test/test8
home/sandeep/test/testmd/
home/sandeep/test/testmd/test3
home/sandeep/test/testmd/test7
home/sandeep/test/testmd/test2
home/sandeep/test/testmd/test8
home/sandeep/test/testmd/test5
home/sandeep/test/testmd/test6
home/sandeep/test/testmd/test4
home/sandeep/test/testmd/test9
home/sandeep/test/testmd/test1
home/sandeep/test/test5
home/sandeep/test/test6
home/sandeep/test/test4
home/sandeep/test/test9
home/sandeep/test/test1

Now verify data using following command

root@sandeepk:/# tar -dvf /backup/exampletwo.tar
home/sandeep/test/
home/sandeep/test/test3
home/sandeep/test/test7
home/sandeep/test/test2
home/sandeep/test/test8
home/sandeep/test/testmd/
home/sandeep/test/testmd/test3
home/sandeep/test/testmd/test7
home/sandeep/test/testmd/test2
home/sandeep/test/testmd/test8
home/sandeep/test/testmd/test5
home/sandeep/test/testmd/test6
home/sandeep/test/testmd/test4
home/sandeep/test/testmd/test9
home/sandeep/test/testmd/test1
home/sandeep/test/test5
home/sandeep/test/test6
home/sandeep/test/test4
home/sandeep/test/test9
home/sandeep/test/test1

Now delete the data from your system and try to restore it

root@sandeepk:/# rm -rf /home/sandeep/test
root@sandeepk:/# ls -l /home/sandeep/test
ls: cannot access /home/sandeep/test: No such file or directory
root@sandeepk:/# cd
root@sandeepk:~# tar -xvpf /backup/exampleone.tar
home/sandeep/test/
home/sandeep/test/test3
home/sandeep/test/test7
home/sandeep/test/test2
home/sandeep/test/test8
home/sandeep/test/testmd/
home/sandeep/test/testmd/test3
home/sandeep/test/testmd/test7
home/sandeep/test/testmd/test2
home/sandeep/test/testmd/test8
home/sandeep/test/testmd/test5
home/sandeep/test/testmd/test6
home/sandeep/test/testmd/test4
home/sandeep/test/testmd/test9
home/sandeep/test/testmd/test1
home/sandeep/test/test5
home/sandeep/test/test6
home/sandeep/test/test4
home/sandeep/test/test9
home/sandeep/test/test1

Now check if your data restored its original location or not by using ls command.

root@sandeepk:~# ls -l /home/sandeep/test
ls: cannot access /home/sandeep/test: No such file or directory
root@sandeepk:~#

It not restore at it's original location if you run ls command you will see new home directory created and restore all data in that directory.

root@sandeepk:~# ls -l
total 12824
-rw-r--r-- 1 root root 13127680 Dec 18 15:07 archive
drwxr-xr-x 3 root root     4096 Dec 20 12:19 home

now extract from root (/) directory.

root@sandeepk:~# cd /
root@sandeepk:/# tar -xvpf /backup/exampletwo.tar
home/sandeep/test/
home/sandeep/test/test3
home/sandeep/test/test7
home/sandeep/test/test2
home/sandeep/test/test8
home/sandeep/test/testmd/
home/sandeep/test/testmd/test3
home/sandeep/test/testmd/test7
home/sandeep/test/testmd/test2
home/sandeep/test/testmd/test8
home/sandeep/test/testmd/test5
home/sandeep/test/testmd/test6
home/sandeep/test/testmd/test4
home/sandeep/test/testmd/test9
home/sandeep/test/testmd/test1
home/sandeep/test/test5
home/sandeep/test/test6
home/sandeep/test/test4
home/sandeep/test/test9
home/sandeep/test/test1
root@sandeepk:/#

root@sandeepk:/# ls -l /home/sandeep/test
total 4
-rw-r--r-- 1 root root    0 Dec 20 10:29 test1
-rw-r--r-- 1 root root    0 Dec 20 10:29 test2
-rw-r--r-- 1 root root    0 Dec 20 10:29 test3
-rw-r--r-- 1 root root    0 Dec 20 10:29 test4
-rw-r--r-- 1 root root    0 Dec 20 10:29 test5
-rw-r--r-- 1 root root    0 Dec 20 10:29 test6
-rw-r--r-- 1 root root    0 Dec 20 10:29 test7
-rw-r--r-- 1 root root    0 Dec 20 10:29 test8
-rw-r--r-- 1 root root    0 Dec 20 10:29 test9
drwxr-xr-x 2 root root 4096 Dec 20 10:30 testmd

How to Search All Disabled User In Active Directory.

2013-11-15T19:06:00.004+05:30

How to Search all Disabled User In Active Directory and export in to the Excel File using VBScript.

How to Search all Active/Enabled User In Active Directory and export in to the Excel File using VBScript

There are some time when you needed or your manager ask to provide all Disabled user Or currently all Active User from Active Directory in excel file and there are more than 100 Accounts in your Active Directory and you have to give all information in limited time frame. then best option is to use VbScript that search all disabled or All Active/Enabled users in Active Directory.

Following is the VBScript that Search for all Disabled Users in entire domain.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Option Explicit
Dim objRootDSE,strDNSDomain,adoConnection,strQuery,adoRecordset,Field
Dim CN,FirstName,LastName,initials,Descrip,EmailAddr
Dim strFileName, ObjExcel, intRow

'Search all Disabled users in Active Directory and export them in to Excel file.

wscript.echo "Searching all disabled users in Active Directory please wait...."

'Open Excel file to Write the Data

Set ObjExcel = CreateObject("Excel.Application")
objExcel.Visible = True
objExcel.WorkBooks.Add()
intRow = 1
       ObjExcel.Cells(intRow,1).Value = "CN"
       ObjExcel.Cells(intRow,2).Value = "FirstName"
       ObjExcel.Cells(intRow,3).Value = "initials"
       ObjExcel.Cells(intRow,4).Value = "LastName"
       ObjExcel.Cells(intRow,5).Value = "EmailAddr "

' Bind to Domain or OU

Set objRootDSE = GetObject("LDAP://RootDSE")
strDNSDomain = objRootDSE.Get("defaultNamingContext")
Set adoConnection = CreateObject("ADODB.Connection")
adoConnection.Provider = "ADSDSOObject"
adoConnection.Open "ADs Provider"
strQuery = "<LDAP://" & strDNSDomain & ">;(&(objectCategory=person)(objectClass=user));adspath;subtree"

'Define condition for search
Set adoRecordset = adoConnection.Execute(strQuery)

' Loop to search users through them...

Do While Not adoRecordset.EOF
     Set Field = GetObject(adoRecordset.Fields(0).Value)
     If Field.accountDisabled = TRUE Then
       'wscript.echo "Account " & Field.displayname & " is disabled"
       intRow = intRow + 1
       Cn = Field.CN
       FirstName = Field.GivenName
       LastName = Field.sn
       initials = Field.initials
       Descrip = Field.description
       EmailAddr = Field.mail

       'Wscript.echo "Users full Name is " & FirstName & " " & initials & " " & LastName & " and his Email ID is " & EmailAddr

       ' Write to Excel File
       ObjExcel.Cells(intRow,1).Value = CN
       ObjExcel.Cells(intRow,2).Value = FirstName
       ObjExcel.Cells(intRow,3).Value = initials
       ObjExcel.Cells(intRow,4).Value = LastName
       ObjExcel.Cells(intRow,5).Value = EmailAddr

      End If

adoRecordset.MoveNext

Loop
'If completed notify as it done.
wscript.echo "Done"

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

You can also use this script to search all Active/Enabled user in entire domain by just modifying condition Field.accountDisabled = TRUE with Field.accountDisabled = FALSE

OR

You can also use this script to find all Active/Disalbed users by just modifying Bind base string (strQuery ) using Organization Unit. For example

strQuery = "<LDAP://OU=DisabledAccounts,DC=Example,DC=com>;(&(objectCategory=person)(objectClass=user));adspath;subtree"

I hope this will help you. :-)

How to disabled IPv6 on Windows 2008 Server from registry

2013-10-24T20:10:00.000+05:30

Step to permanently disabled IPv6 from Windows 2008 Server or windows 7.

If you do not required IPv6 on your windows 2008 Server system or windows 7 Desktop you can disabled it from registry.

To disabled IPv6 support go to:-

Start> run > and type regedit. Expand the path

Coputer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\TCPIV6\Parameters

Now Right Click the folder Parameters and Select New > DWORD(32-Bit) Value > Name the key as DisabledComponents

Now open the DisabledCompontents key and type ffffffff and click ok.<8 time " f " with lower case >

Final setting look like this:-

Now close the all application and restart your server/Desktop.

After reboot check IPv6 disappear from command result ipconfig /all

Installing & Configuring Active Directory on Windows Server 2012 Step By step

2013-05-20T23:49:00.000+05:30

To install Active Directory on Windows Server 2012 we will need Static IP to system, DNS & FQDN for Domain.

Adding the Active Directory Domain Services Role

Log on to server with local administrator account & open Server Manager.

From the Server Manager window click on “Add roles and features”.

Then “Before you begin screen” will open, click Next.

Select “Role-based or feature-based installation” in the “Installation Type” screen below & click Next.

You will then see below screen from which you can select a destination server. Windows server 2012 is having this new feature using which you can deploy roles and features to remote servers or to an offline virtual hard disk. We are selecting the current server from the server pool. Select the server & click Next.

Then on Add Roles And Features Wizard select the “Active Directory Domain Services” and “DNS Server”

Then you will be prompted to add the features needed by Active Directory Domain Services (ADDS). Click “Add Features”.

Then on below screen select “DNS Server” & click Next.

Then on below screen you can select additional feature if you want & click Next.

(Group Policy Management feature will be automatically installed during the domain promotion).

Then on “Active Directory Domain Services” page below you will see some basic information about ADDS & DNS. Click Next.

Then on next page you will be able to see summary of the roles & features selected for installation. Click Install.

It will start installation process & upon completion will show installation succeeded message. Click Close.

Promoting Server To A Domain Controller

After installing AD DS roles & features you will be able to see AD DS in the left pane in Server Manager window with warning message stating “Configuration required for Active Directory Domain Services” Click on More.

Then All Server Task Details And Notifications window will open. Click on “Promote this server to a domain controller” under Action.

Then AD DS configuration wizard will open.

Select “Add a new forest” as this is the first domain controller. Enter Root domain name & click Next.

On below screen specify Forest Functional Level & Domain Functional Level also provide Directory Services Restore Mode password. Click Next.

You will get warning regarding DNS delegation, which can be ignored. Click OK & then Next.

On next window, NetBIOS name will be automatically assigned. Click Next.

On next window you will be able to confirm or change the path of Database, Logs & SYSVOL folders. Click Next.

Then on Review Options page, review your selections & click Next.

Then it setup will check for prerequisite. After passing through prerequisite, click on Install.

At completion of setup, system will restart. After promoting the server to domain, your local administrator becomes domain administrator. So, login to the server using domain administrator user name and password.

How to convert or resize image file using ImageMagick

2013-02-28T13:27:00.001+05:30

convert or resize image using ImageMagick

ImageMagick is a free software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 100) including DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG, Postscript, SVG, and TIFF. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves. ImageMagick is available for Linux , Mac and windows.

You can download ImageMagick from http://www.imagemagick.org

For Ubuntu user can install ImageMagick using

sudo apt-get install imagemagic

For CentOS user can install ImageMagick using

yum install ImageMagick ImageMagick-devel

suppose you have image.png file and you wanted to convert it in to jpg format. You can do this with command line with following command

convert image.png image.jpg

if you have bunch of file suppose .png and you wanted to convent it in jpg format then put all .png file in one new directory and go to new directory path and execute following command to convert all png format file in to .jpg format

convert *.png new.jpg

and if you wanted all your jpg file in single one pdf file then you can use following command

convert *.png imagefile.pdf

and if you wanted to create single gif file of all your jpg file you can do this using command

convert *.jpg newimage.gif
convert -delay 20 *.jpg newimage2.gif

you can also convert your avi file in to gif format using command

convert -quiet -delay 1 vidio.avi vidio.gif

You can resize image by using resize option. for example

convert image.jpg -resize 50% half_image.jpg

you can do lot of task using command line with ImageMagick

How to type in Marathi in Windows 7

2013-02-20T14:15:00.001+05:30

Step by Step how to type in Marathi in Windows 7

In windows 7 you can type and save your document in Marathi without installing any third party software. You can do this by adding Marathi support in your windows 7. Do the following step to install (enabled ) support for Marathi typing.

Go to Start and select control Panel. It will open new windows of Control Panel.

In Control Panel select Region and Language option

This will open new windows of Region and Language. Select Keyboards and Language tab in Region and Language windows.

Then select Change Keyboards button in Region and Language windows.

This will open one child window of Text Services and Input Languages. In the windows of Text Services and Input Languages in General tab select Add button in Installed services option to install supported language in our case Marathi.

In the list select Marathi (India) and in keyboard select keyboard as Devanagari and/or Marathi and select OK button to add input language.

Then select Apply button then OK to close the windows and then close all the open windows. Now Marathi keyboard is enabled on your system. you can now type in Marathi by selecting language and kayboard layout from language bar at bottom on taskbar.

Now open any word file or notepad select MA from language bar and type in your own language (Marathi) :-)

If you are not familiar with Marathi keyboard as me use on-screen keyboard.

To open on-Screen windows just simply type on-screen keyboard in Start> search program and file box and then select on-screen keyboard. this will open on-screen keyboard

Installing VNC Server in Linux (CentOS)

2012-10-04T19:27:00.000+05:30

How to install VNC server in CentOS

Install Required Packets using yum

# yum install vnc-server gnome-desktop xorg-x11-xinit xterm gnome-applets gnome-session gnome-themes gnome-panel gdm firefox dbus-x11

Set Password for VNC server user

# vncpasswd

Type new password and confirm it for accessing vnc server

Note:- To set password to user you must login with that user to create vnc password.

# vi /etc/sysconfig/vncservers

VNCSERVERS="1:root"
VNCSERVERARGS[2]=”-geometry 800×600 -nolisten tcp -nohttpd -localhost”

#service vncserver start
#service vncserver stop

#vi .vnc/xstartup

Uncomment the following two lines for normal desktop:

unset SESSION_MANAGER
exec /etc/X11/xinit/xinitrc

# service vncserver start

It done. Now connect to vnc server from vncviewer with <IP_Address>:1

How to Map (Mount) NFS Share in Windows

2012-07-25T00:54:00.001+05:30

If you wanted to use Linux NFS Share from Windows system to mount as drive. You can do it using mount command for that you need to install NFS Client for windows.

Installing NFS Client :-

If you are windows7 , Vistra, or Windows 2008 user then you can install NFS Client from Add/Remove Software wizard in the Control Panel.

If you are Windows 2000, Windows 2000 Service Pack 3, Windows 2000 Service Pack 4, Windows Server 2003, Windows XP user then you can download client from following location.
http://www.microsoft.com/en-us/download/confirmation.aspx?id=274

And the select Finish

After installation check if NFS service is running or not from service MMC

Start -> Run -> Services.msc

If require service is running on your system you can now Map (Mount) NFS share from command line using mount command:

mount servername:\Share_Name Drive_Letter

For Example: your server name is FileServer and you have NFS export /home/share and you wanted map this drive as Z: in your My computer, then command look like this:

Start -> Run -> CMD -> OK -> Mount FileServer:\home\share Z:

Mount FileServer:\home\share Z:

It will map your NFS Share in your system and it ready to access as disk drive from you my computer.

Note:- If your NFS share required Authentication you can provide it with mount command.

VBScript for checking an Active Directory disabled users are hide in Global Address list or not.

2012-03-23T18:52:00.000+05:30

VBScript for checking an Active Directory disabled users are hide in Global Address list or not.

Option Explicit
Dim objRootDSE,strDNSDomain,adoConnection,strQuery,adoRecordset,Field

'Check if Active Directory disabled users are hiden or not in Global Address list

wscript.echo "Searching all disabled users to check if they are hide in GAL or not please wait...."

Set objRootDSE = GetObject("LDAP://RootDSE")

strDNSDomain = objRootDSE.Get("defaultNamingContext")

Set adoConnection = CreateObject("ADODB.Connection")

adoConnection.Provider = "ADSDSOObject"

adoConnection.Open "ADs Provider"

strQuery = "<LDAP://" & strDNSDomain & ">;(&(objectCategory=person)(objectClass=user));adspath;subtree"

Set adoRecordset = adoConnection.Execute(strQuery)

' Loop through them...

Do While Not adoRecordset.EOF
     Set Field = GetObject(adoRecordset.Fields(0).Value)


     If IsArray(Field.proxyAddresses) and Field.accountDisabled = TRUE and Field.msExchHideFromAddressLists <> TRUE Then

       wscript.echo "Account " & Field.displayname & " is disabled but not hide in Global Address list"

      End If
adoRecordset.MoveNext
Loop
wscript.echo "Done"

GENERAL TROUBLESHOOTING TIPS

2012-02-24T17:31:00.000+05:30

BLACKBERRY TROUBLESHOOTING TIPS

In following site has explain very good troubleshooting step for Blackberry Device.

for Balckberry Enterprise Activation , BES sync , Encryption Key Out of Sync and many more. I think this will help someone.

http://forums.crackberry.com/blackberry-administrators-f50/bes-troubleshooting-guide-50779/

How to connect Windows Remote Desktop from Linux Step by Step

2012-02-09T01:34:00.000+05:30

Connecting Windows Remote Desktop from Linux

If you are running Centos (Linux system) and wanted to connect Remote windows system from CentOS then you have to install rdesktop Remote Desktop Client. Using rdesktop you can easily connect Windows system from Linux. rdesktop is an open source client for Microsoft's RDP protocol. It work with Windows NT 4 Terminal Server,2000, XP, 2003, 2003 R2, Vista, 2008, 7, and 2008 R2. And it support RDP Version 4 and 5.

Installing rdesktop:-

You can download package go to http://pkgs.org as per your distribution. Or you can install rdesktop from repository :-

For CentOS/RedHat:-

# yum install rdesktop

For Ubuntu:-

# apt-get install rdesktop

After that you are ready to access Windows Remote Desktop from terminal with following command. For more help use man command (man rdesktop)

# rdesktop <Server Name OR IP Address>

Eg:-

# rdesktop 192.168.125

How to Install and Configure Proftpd Server on CentOS Step by Step

2012-02-08T02:26:00.001+05:30

Installing Proftpd Server on CentOS (Linux)

Proftpd is the Highly configurable GPL-licensed FTP server software .it is an enhanced, secure and highly configurable FTP server. Its configuration syntax is very similar to apache web server. You can know more information from http://www.proftpd.org .

Download proftpd rpm package from http://pkgs.org/ and install with rpm –ivh <Package name>.rpm

If you want to install using yum then add repository and then install proftpd server

# cd /etc/yum.repos.d/
# wget http://centos.karan.org/kbsingh-CentOS-Extras.repo
# rpm --import http://centos.karan.org/RPM-GPG-KEY-karan.org.txt

# Vi /etc/yum.repos.d/ kbsingh-CentOS-Extras.repo

Set both enable=1

# yum clean all

# yum update all

Now install Proftpd

# yum install proftpd

Now your ftp server is ready to functional with default configuration but you should check following values for your Basic ftp server in /etc/proftpd.conf configuration file

Server Name, Server Type and Port

Now start proftpd and set on for startup

# service proftpd start

# chkconfig proftpd on

Check running process for proftpd

# ps -ef | grep proftpd

nobody 4463 1 0 23:35 ? 00:00:00 proftpd: (accepting connections)

root 4470 4202 0 23:36 pts/2 00:00:00 grep proftpd

OR you can verify whether your FTP server is running using:

# netstat -an | grep -F tcp | grep -F LISTEN | grep -F 21

tcp 0 0 :::21 :::* LISTEN

Now when you try to connect ftp server it will be ask you for your name and password type valid user name and password as per /etc/passwd file . it will take you home directory of that user.

Anonymous FTP Server :-

If you wanted Anonymous access uncomment Anonymous directive. Or you can add following in /etc/proftpd.conf file

# vi /etc/proftpd.conf

AnonRequirePassword off

User ftp

Group ftp

RequireValidShell off

DenyAll

</Limit>

</Directory>

</Anonymous>

Note: - user and group must be valid

verify configuration :-

# proftpd –t6

If it not given any error then reload configuration

# service proftpd reload

Now if you try to access FTP server it will not ask you any password and show you contain of /var/ftp/pub directory.

If you wanted to allow user to upload data then in Limit WRITE directive change it AllowAll.

Script to update Active Directory Database from Excel file

2012-02-01T07:08:00.000+05:30

Script to update Active Directory Database from Excel file

Flow Chart :-

Excel file before Update:-

Excel file after Update:-

Script :-

'Script to update Active Directory Database from Excel file

Option Explicit
Dim strExcelPath,ObjExcel,objSheet,intRow,strUserFirstName,strUserLastName
Dim strUserTitle,strManagerFirstName,strManagerLastName
Dim adocommand, adoconnection, strBase, strFilter, strAttributes
Dim objRootDSE, strDNSDomain, strQuery, adoRecordset, strName, strCN , strGivenNAme ,strSN, strmail, strADsPath
Dim objUser,varTotalUsers,strFilter2,strQuery2,strManager,i,strValue

' Specify File.

strExcelPath = "c:\test.xls"

'Open File
Set ObjExcel = CreateObject("Excel.Application")

On Error Resume Next
objExcel.Application.Visible = True
objExcel.Workbooks.Open strExcelPath
If Err.Number <> 0 Then
On Error GoTo 0
Wscript.Echo "Unable to open spreadsheet " & strExcelPath
Wscript.Quit
End If
On Error GoTo 0

Set objSheet = objExcel.ActiveWorkbook.Worksheets(1)

' Start with row 2 of spreadsheet.
' Assume first row has column headings.

intRow = 2

' Read each row of spreadsheet until a blank value

Do Until objExcel.Cells(intRow,1).Value = ""

' Read values from spreadsheet for this user.

strUserFirstName = Trim(objSheet.Cells(intRow, 1).Value)
strUserLastName = Trim(objSheet.Cells(intRow, 2).Value)
strUserTitle = Trim(objSheet.Cells(intRow, 3).Value)
strManagerFirstName = Trim(objSheet.Cells(intRow, 4).Value)
strManagerLastName = Trim(objSheet.Cells(intRow, 5).Value)
On Error Resume Next

'Setup ADO Objects.
Set adocommand = CreateObject("ADODB.Command")
Set adoConnection = CreateObject("ADODB.Connection")
adoConnection.Provider = "ADsDSOobject"
adoConnection.Open "Active Directory Provider"
Set adoCommand.ActiveConnection = adoConnection

' Search entire Active Directory Domain
Set objRootDSE = GetObject("LDAP://RootDSE")

strDNSDomain = objRootDSE.Get("defaultNamingContext")
strBase = "<LDAP://" & strDNSDomain & ">"

' Filter on user objects.

strFilter2 = "(&(objectCategory=person)(objectClass=user)(givenName=" & strManagerFirstName &")(sn=" & strManagerLastName&"))"
'Comma delimited list of attribute values to retrieve.
strAttributes = "sAMAccountName,cn,givenName,sn,mail,ADsPath"
'Constuct the LDAP syntax query
strQuery2 = strBase & ";" & strFilter2 & ";" & strAttributes & ";subtree"
adocommand.commandText = strQuery2
adoCommand.Properties("Page Size") = 100
adoCommand.Properties("TimeOut") = 30
adoCommand.properties("Cache Results") = False
' Run the query
Set adoRecordset = adoCommand.Execute
' Enumerate the resulting recordset.
If adoRecordset.Fields("sAMAccountName").Value = "" Then
     Wscript.Echo "Manager Record not found for user " & strUserFirstName & " " & strUserLastName
    ObjExcel.Cells(intRow,4).Font.Bold = TRUE
    ObjExcel.Cells(intRow,5).Font.Bold = TRUE
    ObjExcel.Cells(intRow,4).Font.Color = vbRed
    ObjExcel.Cells(intRow,5).Font.Color = vbRed
else
Do Until adoRecordset.EOF

   ' Retrieve values and display.
   varTotalUsers =adoRecordset.RecordCount
   'Wscript.Echo varTotalUsers
   If varTotalUsers = 1 Then
   strADsPath = adoRecordset.Fields("AdsPath").Value
   strValue = Split(strADsPath,"://")
   For i = 0 to Ubound(strValue)
    strManager=strValue(1)
   Next
   WScript.Echo strManager
   'Wscript.Echo "Display Name: " & strCN & ", ADsPath:" & strADsPath
   WScript.Echo "manager " & strCN & " found"
   ElseIf varTotalUsers > 1 Then
   ObjExcel.Cells(intRow,4).Font.Bold = TRUE
   ObjExcel.Cells(intRow,5).Font.Bold = TRUE

   End If
'Move to the Next Record in the recordset.
adoRecordSet.MoveNext
Loop
End IF

'Wscript.Echo strManagerFirstName & " " & strManagerLastName & " is manager of " & strUserFirstName & " " & strUserLastName

strFilter = "(&(objectCategory=person)(objectClass=user)(givenName=" & strUserFirstName &")(sn=" & strUserLastName&"))"
'Constuct the LDAP syntax query
strQuery = strBase & ";" & strFilter & ";" & strAttributes & ";subtree"

adocommand.commandText = strQuery
adoCommand.Properties("Page Size") = 100
adoCommand.Properties("TimeOut") = 30
adoCommand.properties("Cache Results") = False

' Run the query
Set adoRecordset = adoCommand.Execute

' Enumerate the resulting recordset.
If adoRecordset.Fields("sAMAccountName").Value = "" Then
     Wscript.Echo "User Record not found"
    ObjExcel.Cells(intRow,1).Font.Bold = TRUE
    ObjExcel.Cells(intRow,2).Font.Bold = TRUE
    ObjExcel.Cells(intRow,1).Font.Color = vbRed
    ObjExcel.Cells(intRow,2).Font.Color = vbRed
else
Do Until adoRecordset.EOF
   ' Retrieve values and display.
   varTotalUsers =adoRecordset.RecordCount
   'Wscript.Echo varTotalUsers
   If varTotalUsers = 1 Then
   strADsPath = adoRecordset.Fields("AdsPath").Value
   set objUser = GetObject(strADsPath)
   objUser.Put "manager", strManager
   objUser.Put "description",strUserTitle
   objUser.Put "title", strUserTitle
   objUser.Put "company", "Glam Media"
   objUser.SetInfo
   'Wscript.Echo "Display Name: " & strCN & ", ADsPath:" & strADsPath
   WScript.Echo "User " & strCN & " found"
   ElseIf varTotalUsers > 1 Then
   ObjExcel.Cells(intRow,1).Font.Bold = TRUE
   ObjExcel.Cells(intRow,2).Font.Bold = TRUE
   End If
'Move to the Next Record in the recordset.
adoRecordSet.MoveNext
Loop
End IF

' Wscript.Echo "First Name: " & strUserFirstName & "Last Name: " & strUserLastName


intRow = intRow + 1

Loop
objExcel.ActiveWorkbook.Saveas "C:\updated_File.xls"
objExcel.Quit
ObjWcript.Quit

Install & Configure DHCP Server role on Windows 2008 Server Core

2012-01-18T09:53:00.020+05:30

DHCP Server is very important server in the network environment. We can install & configure DHCP server role using below steps in windows 2008 server core...

1) First we will have to run below command on windows 2008 server core to add the DHCP server role.

2) Then to start DHCP service automatically, use below command...

3) Then use below command to start the DHCP service

4) If the DHCP server is in Active Directory domain environment (i.e. Member of a domain) then we must have to authorize the DHCP server to work properly.

To authorize the server in domain , use below command..

5) Now to add scope to the DHCP Server use below command

(C:\windows\system32>netsh dhcp server 192.168.127.11 add scope 192.168.127.0 255.255.255.0 scope1)

In the above command 192.168.127.11 = the IP of DHCP server

192.168.127.0 255.255.255.0 = subnet & subnet mask of scope which we have to add

Scope1 = name of the scope to be added

6) Then we will need to set the IP range for the added scope, for this use below command..

(C:\windows\system32>netsh dhcp server 192.168.127.11 scope 192.168.127.0 add iprange 192.168.127.50 192.168.127.100)

Using above command we have added IP range (192.168.127.50 - 192.168.127.100) to the scope (192.168.127.0) in the DHCP server (192.168.127.11)

7) If we want to add exclusion range to DHCP range then we have to use below command

(C:\windows\system32>netsh dhcp server 192.168.127.11 scope 192.168.127.0 add excluderange 192.168.127.56 192.168.127.60)

Using above command we have added exclusion IP range (192.168.127.56 - 192.168.127.60) to the scope (192.168.127.0) in the DHCP server (192.168.127.11)

8) To set Default Gateway (Option 003) use below command..

(C:\windows\system32>netsh dhcp server 192.168.127.11 scope 192.168.127.0 set optionvalue 003 IPADDRESS 192.168.127.1)

Using above command we have set Default Gateway address as 192.168.127.1 for the scope 192.168.127.0

9) To set DNS server (Option 006) use below command..

(C:\windows\system32>netsh dhcp server 192.168.127.11 scope 192.168.127.0 set optionvalue 006 IPADDRESS 192.168.127.10)

Using above command we have set primary DNS address as 192.168.127.10 for the scope 192.168.127.0

10) Then finally we will have to activate this scope, for this , use below command

(C:\windows\system32>netsh dhcp server 192.168.127.11 scope 192.168.127.0 set state 1)

Now your DHCP server should be running & working fine!

I hope this will help you to setup DHCP server on windows 2008 server core with ease.

VBScript for Map share folder as Z: drive

2011-12-22T19:41:00.002+05:30

VBScript for Map share folder as Z: drive

'VBScript to Map folder as Z: Drive
Option Explicit
Dim objNetwork

Set objNetwork = CreateObject("WScript.Network")
objNetwork.MapNetworkDrive "Z:" , "\\Server.domainname.com\Share\"

Step by Step How to: Uninstalling Zabbix Agent from Windows system.

2011-12-09T13:11:00.001+05:30

Step by Step How to: Uninstalling Zabbix Agent from Windows system.

Suppose you have installed Zabbix Agent in C:\Program Files\Zabbix with following method :-

Echo Server=192.168.73.142 > "c:\Program Files\zabbix\zabbix_agentd.conf"
Echo Hostname=%COMPUTERNAME% >> "c:\Program Files\zabbix\zabbix_agentd.conf"
"C:\Program Files\zabbix\zabbix_agentd.exe" -c "c:\Program Files\zabbix\zabbix_agentd.conf" –i
"C:\Program Files\zabbix\zabbix_agentd.exe" -c "c:\Program Files\zabbix\zabbix_agentd.conf" –s

And you want to uninstall it now to do fire the following command from command prompt:

Note:- It is always good option to backup our configuration file want to use later.

C:\Program Files\Zabbix>zabbix_agentd.exe -x -c"C:\Program Files\Zabbix\zabbix_agentd.Conf"
C:\Program Files\Zabbix>zabbix_agentd.exe -d -c"C:\Program Files\Zabbix\zabbix_agentd.Conf"
rmdir /s "C:\Program Files\Zabbix"

This will uninstall windows zabbix agnet from your system. 1st command stop zabbix agent service , 2nd uninstalled zabbix agent and last one do cleanup by deleting Zabbix directory with all constant from it.

Using Split Function in VBScript

2011-12-08T13:03:00.001+05:30

Using Split Function in VBScript to get needed value

'Using Split Function with delimited with ://

Dim strOutPut ,i, strMngrDn
Dim strValue

strOutPut = "LDAP://cn=Sandeep Kapadane,OU=Pune,DC=Domainname,DC=com"
strValue = Split(strOutPut,"://")

For i = 0 to Ubound(strValue)
strmngrDn=strValue(1)
Next

Msgbox strMngrDN

OUT PUT OF strMngrDN will be:-
cn=Sandeep Kapadane,OU=Pune,DC=Domainname,DC=com

Excel Function to split text from one cell to other two cells

2011-12-06T17:19:00.001+05:30

Excel Function (formula) to split text from one cell to other two Cells

Suppose you have excel file with User name in same cell like shown in following screen shot.

and If you want to split cell in other column cell for First name and Last Name.Then write the function MID

=MID(A2,1,SEARCH(" ",A2))

To get First Name of (Sandeep Kapadane) result will be Sandeep.

And to get Last name in other cell then write the function as:-

=MID(A2,SEARCH(" ",A2)+1,20)

To get Last Name of (Sandeep Kapadane) result will be Kapadane

Now drag the formula to apply to all you result will be look like

Simple C program asking user to press ENTER Key and ignore other all keys before continue

2011-12-02T03:29:00.001+05:30

Simple C program asking user to press ENTER Key and ignore other keys before continue

/* Simple program asking user to press ENTER Key and ignore other */
/* Author: Sandeep           Date: 1 DEC 2011 */

#include<stdio.h>
#include<conio.h>
main()
{ char name[80];
   printf("Enter your Name:");
   scanf("%s",&name);
   printf("\nPress \"ENTER\" Key to Continue...");

   while(getch()!=0x0d);   /* This is the statement checking input key with value 0x0d hex value of Enter */

   printf("\nHello %s how are you?",name);
   printf("\nPress Any key to Exit");
   getch();
   return(0);
}