My-IT-Life

nmcli device status UNMANAGED on Ubuntu 20.04 Jammy

noreply@blogger.com (Unknown) — Thu, 16 Oct 2025 16:00:00 +0000

Changing NIC from Unmanaged to Managed State in Ubuntu

Before creating a teaming NIC on Ubuntu, ensure that the ethernet interfaces are in a managed state. This guide walks you through how to change the state from unmanaged to managed.

Step 1 — Check Netplan Configuration

ls /etc/netplan/
# if config file is 00-network-manager-all.yaml
cat /etc/netplan/00-network-manager-all.yaml

Step 2 — Display Network Device Status

nmcli device

Note: Identify devices that show STATE = unmanaged and note their DEVICE and TYPE.

Step 3 — Check for Unmanaged Devices

sudo grep -ri unmanaged-devices /etc/NetworkManager/conf.d/
sudo grep -ri unmanaged-devices /etc/NetworkManager/

Make sure your device is not listed under unmanaged-devices.

Step 4 — Edit Global NetworkManager Configuration

sudo vim /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf

Add ethernet to the managed list by modifying the file like this:

[keyfile]
unmanaged-devices=*,except:type:ethernet

Then reload the NetworkManager service:

sudo systemctl reload NetworkManager.service

Step 5 — Verify the Device State

nmcli device
nmcli connection show

Step 6 — Restart Networking

nmcli networking off
nmcli networking on

Step 7 — Test Connectivity

nmcli connection up eno1

✅ Tip: Once your NIC shows as managed, you can proceed to configure NIC teaming using netplan or nmcli.

Source: nixcraft.com

H3C Hardware Device Management (HDM)

noreply@blogger.com (Unknown) — Wed, 15 Oct 2025 16:00:00 +0000

H3C HDM — Hardware Device Management

Built‑in system for H3C servers enabling remote monitoring, control, and maintenance of server hardware.

🔧 Functions — What it does

Remote hardware management: diagnostics, sensor monitoring, power control, and web interface.

• Server diagnostics & alerts
• Sensor data: temperature, fan, voltage
• Power on/off, reboot, schedule
• Web UI for component management

💡 Capabilities — Key features

Remote KVM, virtual media, and support for IPMI and Redfish standards.

• Remote KVM (keyboard, video, mouse)
• Virtual media for ISO mounting
• IPMI & Redfish API support
• SNMP/Trap monitoring integration

🎯 Purpose — Why it matters

Provides intelligent, efficient, and reliable management from single servers to data centers.

• Simplify O&M workflows
• Enable automation & orchestration
• Reduce downtime & improve performance

Serial Number Commands

noreply@blogger.com (Unknown) — Tue, 14 Oct 2025 16:00:00 +0000

Serial Number Commands (Windows / Cisco IOS / Linux / Unix)

Get Serial Number — Commands for Desktops, Servers & Network Devices

Copy the commands from the boxes and run them on the target machine. This HTML uses no JavaScript (improves Blogger Compose compatibility). Expand each section for commands and notes.

Windows (Desktop & Server)PowerShell & WMIC

Works on Windows 7 / 8 / 10 / 11 and Windows Server (2008+). Run as Administrator when required.

Commands

Tip: Click inside a box, Ctrl+A then Ctrl+C to copy

PowerShell (Get-CimInstance)

Get-CimInstance -ClassName Win32_BIOS | Select-Object SerialNumber

PowerShell (alternate)

Get-WmiObject -Class Win32_BIOS | Select-Object SerialNumber

Legacy WMIC (works in many environments)

wmic bios get serialnumber

From registry (example)

reg query HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\BIOS /v SystemSerialNumber

If commands return blank on virtual machines the host/BIOS might not expose serial number (VMs often show 'None' or empty).

Linux (Desktop & Server)dmidecode / sysfs

Commands below require root privileges for dmidecode and reading /sys files on many systems.

Commands

Run as root or prepend sudo where shown

dmidecode

sudo dmidecode -s system-serial-number

Alternative via sysfs (Linux kernel)

cat /sys/class/dmi/id/product_serial\n# or\ncat /sys/class/dmi/id/board_serial

Using lshw (if installed)

sudo lshw -class system | grep -i serial

Red Hat / CentOS note

sudo dmidecode -t system

On cloud instances or some small form-factor devices the DMI table may be absent or have vendor-specific fields.

macOS (Apple desktop & server)system_profiler / ioreg

Run on the Mac where the hardware is physically present.

Commands

system_profiler

system_profiler SPHardwareDataType | awk '/Serial/ {print $4}'\n# Or fuller info\nsystem_profiler SPHardwareDataType

ioreg method

ioreg -l | grep IOPlatformSerialNumber\n# or\n/usr/sbin/ioreg -c IOPlatformExpertDevice | awk -F'\"' '/IOPlatformSerialNumber/ {print $4}'

Cisco IOS (routers & switches)show commands

Run from privileged EXEC mode (enable).

Commands

Basic (shows Processor board ID / serial)

show version

Inventory (detailed, modular devices)

show inventory\n# On some platforms\nshow platform chassis serial\nshow platform hardware qfp active infrastructure sysid

Look for lines like Processor board ID XXXXXXXXX or serial entries in the inventory output.

Juniper Junosshow chassis

Run from CLI in operational mode.

Commands

show chassis hardware | match Serial\n# or\nshow system information | match serial

Other Unix variantsAIX / Solaris / FreeBSD / HP-UX

Commands below vary by vendor. Run as root when required.

Commands

OS	Command (examples)
AIX	lsattr -El sys0 \| grep -i systemid\n# or\nlscfg -vp \| grep -i serial
Solaris (SPARC/x86)	prtdiag -v \| grep -i serial\n# or\n/usr/sbin/smbios -s system-summary
FreeBSD	dmidecode -s system-serial-number\n# or\nkenv -q smbios.system.serial
HP-UX	# On many HP systems\n/opt/hp/hpuxinfo/bin/serialnumber (vendor tool)\n# Or check SAM or iLO for servers; vendor utilities vary

If OS-level commands do not show serial, check vendor management interfaces (ILO, DRAC, IMM) or hardware labels.

Quick troubleshooting & best practice

Run commands as an administrator/root where noted (use sudo for Linux).
Virtual machines often do not expose a hardware serial number; check hypervisor or cloud metadata service instead.
For servers, management controllers (iLO, DRAC, IMM) reliably show chassis serial numbers from the vendor.
If a command returns nothing, try alternate commands in the same section — vendors differ.

How to Check CPU Information in Ubuntu (Simplified)

noreply@blogger.com (Unknown) — Tue, 14 Oct 2025 02:58:00 +0000

Hey there, Linux explorer! 🐧 Whether you’re tuning up your system or just curious about what’s under the hood, knowing your CPU details helps you understand performance and compatibility. Let’s make it fun and fast!

⚙️ Step 1: Quick CPU Summary

Command:

lscpu

💡 Output: Shows CPU model, architecture, cores, threads, and speed — all in a neat format.

Try it: Copy-paste the command above into your terminal and see what you’ve got!

🔍 Step 2: Dive Deeper (Per-Core Info)

Command:

cat /proc/cpuinfo

📊 Output: Displays detailed information for each CPU core. Perfect if you love seeing the nitty-gritty.

Pro Tip: Use grep to filter what you need — for example:

cat /proc/cpuinfo | grep 'model name'

🧩 Step 3: Count CPU Cores

Command:

nproc

💬 It’ll tell you exactly how many cores your Ubuntu system sees — fast and clean!

📈 Step 4: Watch CPU in Real Time

Command:

top

Or for a cooler, colorized version:

htop

🧰 If you don’t have htop installed yet, run:

sudo apt install htop

Result: You’ll see live CPU, memory, and process stats dancing in real time!

🔧 Step 5: Hardware-Level Details

Command:

sudo lshw -class processor

📘 Tip: If Ubuntu says command not found, install it first:

sudo apt install lshw

📋 Quick Reference Table

Command	Purpose
`lscpu`	Show CPU summary (model, cores, speed)
`cat /proc/cpuinfo`	Detailed per-core information
`nproc`	Count number of CPU cores
`top / htop`	Monitor live CPU usage
`sudo lshw -class processor`	Hardware-level CPU details

💬 Bonus: Make It Fun!

🎯 Challenge yourself: Find your CPU speed and number of threads in under 30 seconds!
🧩 Use watch -n 1 lscpu to refresh CPU stats every second.
⚡ Compare lscpu outputs before and after system load — notice the clock speed change?

Speed Up Your PC: Disable Bing Search in Start Menu

noreply@blogger.com (Unknown) — Mon, 13 Oct 2025 01:07:00 +0000

Boost Your PC Speed: Turn Off Windows Web Search in Minutes

Feeling the Start menu lag? Windows Web Search (the Bing/online results mixed into the Start search) can slow things down and leak queries to the cloud. Disable it to reclaim speed, improve privacy, and keep search results local. Below are two safe, reversible methods — pick what fits your Windows edition.

Why disable Windows Web Search?

Faster local searches: The Start menu returns results quicker when it doesn't try to query the web.
Less background network load: Stops unnecessary outbound queries to Bing.
Better privacy: Keeps search terms on your PC unless you explicitly browse the web.

Choose your approach

Pick Group Policy if you run Windows Pro/Enterprise. Pick the Registry method if you run Home or prefer manual control. Both are reversible.

Option A — Group Policy (Windows Pro / Enterprise)

Press Win + R, type gpedit.msc, and press Enter.
Navigate to:
Computer Configuration → Administrative Templates → Windows Components → Search
Double-click and Enable the policy: Do not allow web search.
Also consider enabling: Don't search the web or display web results in Search and Don't allow Cortana (optional).
Restart the PC (or run gpupdate /force in an elevated Command Prompt).

Result: Start searches will only return local results.

Option B — Registry (All Windows editions)

Use this when Group Policy isn't available. Always back up the Registry before changes.

Press Win + R, type regedit, and press Enter.
Go to: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows. If Explorer doesn't exist, right-click → New → Key → name it Explorer.
Right-click Explorer → New → DWORD (32-bit) Value. Name it DisableSearchBoxSuggestions.
Double-click it and set the value to 1.
Restart Windows.

Result: Web suggestions and Bing integration in Start are turned off.

Quick checklist — before and after

✅ Backup Registry if using Registry method.
✅ Test Start search: type a local filename to confirm quicker local results.
✅ If you need web results later, revert the setting (set policy to Not Configured or delete the Registry value).

Pro tip: If you still use web search sometimes, keep a browser bookmark for fast web lookups — but keep Start search focused locally for speed.

When accessing Nextcloud, should I use a VPN or connect directly over the internet?

noreply@blogger.com (Unknown) — Fri, 26 Sep 2025 12:05:00 +0000

✅ Best Practice: Use VPN When Outside Trusted Networks

If you're accessing Nextcloud from outside your home or office network (like on public Wi-Fi, mobile data, etc.), then:

Use a VPN to connect to your private network securely first.
Then access your Nextcloud server through the VPN.

This protects you by:

Encrypting all your traffic.
Hiding your Nextcloud IP address from the public internet.
Preventing brute-force or port-scan attacks.

❗ If You Face the Internet Directly (No VPN):

If your Nextcloud is directly accessible on the internet (e.g., through a domain like cloud.yourdomain.com), make sure:

🔒 It uses HTTPS with a valid SSL certificate (e.g., via Let's Encrypt).
🔐 You have strong passwords and optionally 2FA (Two-Factor Authentication) enabled.
🚧 Use a firewall and limit access as much as possible.
🧱 Consider using Fail2Ban or similar tools to block repeated failed login attempts.
🕵️‍♂️ Monitor logs for suspicious access.

🏠 If You're Only Using Nextcloud on a Local Network:

If the server is only used within a LAN (home or office):

VPN is not needed, but make sure it's not accidentally exposed to the internet.
You can still enable HTTPS and strong authentication for local safety.

Summary:

Scenario	Use VPN?	Notes
📶 Public Wi-Fi or Mobile Access	✅ Yes	Most secure option
🌍 Exposed to Internet	❌ Optional (but secure config needed)	Use HTTPS, firewall, 2FA
🏠 Local Network Only	❌ Not needed	Keep it blocked from the internet

EVE-NG: Building a Debian 12.6 Image from NetInstall ISO

noreply@blogger.com (Unknown) — Mon, 08 Sep 2025 19:46:00 +0000

EVE-NG Image Preparation Manual: Debian 12.6 (NetInstall)

Step-by-step guide to create a Debian 12.6 Linux node for EVE-NG using the NetInstall ISO.

Tested on EVE-NG Community/Pro (QEMU) Last updated:

Why NetInstall? It’s a small ISO that downloads packages from Debian repositories during setup, letting you build a lean, up-to-date image without bloat.

1) Create Directory

Make a folder for the Debian image:

mkdir -p /opt/unetlab/addons/qemu/linux-debian

2) Create QEMU Hard Disk

Generate a 20 GB disk (adjust size as needed):

qemu-img create -f qcow2 /opt/unetlab/addons/qemu/linux-debian/hda.qcow2 20G

3) Set Boot Order

Boot from CD-ROM first for installation:

echo "cd" > /opt/unetlab/addons/qemu/linux-debian/boot_order

After installation, switch boot order to disk:

echo "c" > /opt/unetlab/addons/qemu/linux-debian/boot_order

4) Copy Debian ISO

Rename and copy your ISO as cdrom.iso:

cp debian-12.6.0-amd64-netinst.iso /opt/unetlab/addons/qemu/linux-debian/cdrom.iso

5) Fix Permissions

Ensure correct ownership for EVE-NG:

/opt/unetlab/wrappers/unl_wrapper -a fixpermissions

6) Install Debian

In EVE-NG GUI, add a new Linux node using linux-debian.
Allocate at least 2048 MB RAM.
Boot VM, install Debian to hda.qcow2.

7) Finalize Image

Remove ISO (optional):

rm /opt/unetlab/addons/qemu/linux-debian/cdrom.iso

Fix permissions again:

/opt/unetlab/wrappers/unl_wrapper -a fixpermissions

✅ Done! Debian 12.6 image is now ready in EVE-NG.

Snipe-IT : Time not accurate (Wrong Time / Worng Date)

noreply@blogger.com (Unknown) — Tue, 25 Oct 2022 22:10:00 +0000

Oops, suddenly I realized that the data that was being saved (Snipe-IT) did not match the current time of the activity taken.

I am really sure that the problem came from Snipe-IT because of no issues from:

The time and date on the server are accurate.
There are several applications running that are very dependent on accuracy in time.

The problem came from the "REQUIRED: BASIC APP SETTINGS" on the .env file.

Just change APP_TIMEZONE from

APP_TIMEZONE='UTC' to APP_TIMEZONE='Asia/Kuala_Lumpur' <depends on your timezone> based on the PHP-supported timezone.

After changing the timezone, just restart the Apache. It should be ok.

Snipe-IT : Changing checkout consumeables directly from database.

noreply@blogger.com (Unknown) — Tue, 25 Oct 2022 00:42:00 +0000

There are 2 tables that need to be updated in order for the consumable item to be displayed correctly. Otherwise, your log is messed up.

Table1 : action_logs

Filter by user_id

Filter action_type = checkout <additional>

Changed column target_id

Changed column company_id <additional>

Table2 : consumables_users

Filter by user_id

Cross Check "Date & Time" from table action_logs

Changed column assigned_to

Now it depends on you to create an interface for it or custom your own SQL syntax.

Error 1 : Snipe-IT (your documentroot is set incorrectly)

noreply@blogger.com (Unknown) — Wed, 07 Sep 2022 06:14:00 +0000

D'oh. if you're seeing this, your DocumentRoot is set incorrectly. It should be set to the public directory.

Open Apache httpd.conf (On default installation, it should be in C:\xampp\apache\conf\httpd.conf)
Find DocumentRoot and changed as follows;

DocumentRoot "C:/xampp/htdocs"
<Directory "C:/xampp/htdocs">

Changed to

DocumentRoot "C:/xampp/htdocs/snipe-it/public"
<Directory "C:/xampp/htdocs/snipe-it/public">
Stop and Start Apache

Take note that, this configuration is only for running 1 application or system on 1 server.

Error 2 : Snipe-IT (Error Backup failed...)

noreply@blogger.com (Unknown) — Wed, 07 Sep 2022 06:01:00 +0000

When I tried to create a backup from admin panel, Error Backup failed because The dump process failed with exitcode 1 : General error : The system cannot find the path specified.

This is most probably a misconfiguration in .env file.

Default configuration in .env file

DB_DUMP_PATH='/usr/bin'
Changed to
DB_DUMP_PATH='C:\xampp\mysql\bin'

The backup folder will be on C:\xampp\htdocs\snipe-it\storage\app\backups

DB_DUMP_PATH is based on your XAMPP installation folder.

These new configurations allow the execution of backup.

XAMPP 8.1.6 + Snipe-IT-6.0.10

noreply@blogger.com (Unknown) — Wed, 07 Sep 2022 05:30:00 +0000

These are the brief step on configuring Snipe-IT ver. 6.1.10 with XAMPP 8.16

Install XAMPP as usual.
Download Snipe-IT, extract and put into folder C:\xampp\htdocs\snipe-it (location of your XAMPP installation and for this example I'm also using snipe-it as folder name).

Composer Configuration

Download the latest composer and install it.
During the installation process, choose C:\xampp\php\php.exe (location of the command-line PHP you want to use).
Open Command Prompt (without "Run as Administrator").
Changed to the folder location of Snipe-IT that you extracted previously (in Command Prompt).
Execute the command: composer install

If error during the execution of this command (usually on enabling the extension in php.ini), just enabled the extension required.
Personally, I'll execute the command composer update before continuing process no 4.

Snipe-IT Configuration

Open the folder of Snipe-IT that you extracted previously (in Windows Explorer).
Copy file name .env.example and rename as .env
Generate your App key by;

Open the folder of Snipe-IT (in Command Prompt).
Execute command php artisan key:generate

Browse PHPMyAdmin and create a database for snipe-it (for this manual, database named snipe-it)
Edit .env and changed;

APP_URL=localhost
DB_DATABASE=snipe-it
DB_USERNAME=root

Hopefully, this can help you during the deployment of Snipe-IT.

Changed Default Page For Nagios Version 4.4.x

noreply@blogger.com (Unknown) — Sat, 30 Apr 2022 01:30:00 +0000

Search for a file named index.php. The file located in your nagios installation folder /..../nagios/share/index.php

and then search for $url = 'main.php';
This is the default page for Nagios. Change only main.php to your desired default page, either Type 1 or Type 2. It's your call.

Type 1;
$url='map.php?host=all';

Type 2;
$url='cgi-bin/tac.cgi';

Actually, it's just changing the URL for the default page.
After editing the file, don't forget to restart your Apache.

Linux : Showing Processor Type, Memory Size, Total Disk Space

noreply@blogger.com (Unknown) — Mon, 18 Apr 2022 19:37:00 +0000

Anyway, to cut a long story short, I got documentation that needs to be submitted which is to get the info of the processor type, memory info and storage size for Linux machines.

A bunch of information will be displayed if we only used lscpu, meminfo and df command. To make life easier, below are the straightforward command to get that information.

Checking for processor type.

(1) lscpu | grep "Model name"

Checking memory info using grep command.
(Global Regular Expression Print)

(2) grep MemTotal /proc/meminfo | numfmt --field 2 --from-unit=Ki --to-unit=Mi | sed 's/ kB/M/g'

(3) grep MemTotal /proc/meminfo | numfmt --field 2 --from-unit=Ki --to=iec | sed 's/ kB//g'

(4) grep MemTotal /proc/meminfo | numfmt --field 2 --from-unit=Ki --to-unit=Gi | sed 's/ kB/G/g'

Checking memory info using awk command.
(Aho, Weinberger, Kernighan (authors))

(5) awk '$3=="kB"{$2=$2/1024;$3="MB"} 1' /proc/meminfo | column -t | grep MemTotal

(6) awk '$3=="kB"{$2=$2/1024^2;$3="GB";} 1' /proc/meminfo | column -t | grep MemTotal

Checking Store Size

(7) df --total -h

If there is any detailed explanation, just let me know in the comment below. Thanks.

MikroTik Variable for sharing.

noreply@blogger.com (Unknown) — Mon, 11 Apr 2022 20:28:00 +0000

I'm trying to find the documentation for extracting data from the database from Mikrotik. Unfortunately, this is what I get on the date 12 April 2022.

Thanks to sergejs from MikroTik Support posting way back in the year 2005. Most of the variables are still usable. Hopefully, this will help you do your customization.

_username - Username

u_password - Password
u_firstName - First name
u_lastName - Last name
u_phone - Phone
u_location - Location
u_comment - Comment
u_email - Email
u_ipAddr - IP address
u_callerId - Caller ID
u_shared_users - Shared users
u_usedUpload - Upload Used
u_usedDownload - Download Used
u_usedUptime - Uptime Used
u_lastIpAddr - Last used IP
u_lastMAC - Last used MAC
u_tillTime - Till time
u_timeLeft - Total time left
u_actualProfileName - Actual profile
u_actualProfileStart - Start time
u_actualProfileEnd - End time
u_actualProfileLeft - Time left
u_limitDownload - Download limit
u_limitUpload - Upload limit
u_limitDownload - Transfer limit
u_limitUptime - Uptime Limit
u_actualRateLim - Rate limit
u_moneyPaid - Money paid
u_moneyUsed - Money used
u_moneyLeft - Money left
u_wirelessPsk - Preshared key
u_wirelessEncKey - Encryption key
u_wirelessEncAlgo - Encryption algorithm

If there are any updates from the list above, let me know ok.

Reclaiming your disk space in Windows. (PART II)

noreply@blogger.com (Unknown) — Wed, 23 Feb 2022 19:59:00 +0000

Actually, this post was published due to frustration for me to gain back storage that is being taken by the unnecessary process. Those logs are helpful if you know how to manipulate them. That's why log collector is being developed.

What log can do?

Long list cut short: Audit trails, Improving existing systems and System Troubleshooting.

Nevertheless, I'll still update this post if I encounter another solution. (Definitely without using third-party tools). Let's Go...

Cleanup the content inside the folder Component-Based Servicing (CBS): This folder has logged about the installed and uninstalled Windows Update component.

Go to run > key in %Windir%\logs\CBS and press Enter key.
If you have IIS running, check the logs and move them to another drive or just delete it.

C:\inetpub\logs\LogFiles\W3SVC1

Reclaiming your disk space in Windows.

noreply@blogger.com (Unknown) — Mon, 21 Feb 2022 14:47:00 +0000

There are lots utility that can you install on your machine to claimed your disk space. But personally, I prefer preset tools or tricks that come with the operating system. Those utilities are the last option for me. Here are my sharing to all.

Empty your Recycle Bin
Using Control Panel
Go to run > key in appwiz.cpl and press Enter key. Uninstall unwanted applications and their respective appdata and Program folders.
Delete temporary file inside the folder.
Go to run > key in %temp% and press Enter key.
Run Disk Cleanup
(For Windows that didn't have this utility, I'll share instructions on how to obtain it in the incoming post.)
ReportQueue: Windows Error Reporting service (WER) is used to collect the debug information about the system and third-party app failures but actually, few people use this feature. Safe to delete.

System data goes to the ProgramData directory
Go to run > key in %ALLUSERSPROFILE%\Microsoft\Windows\WER\ and press Enter key.

User data is saved to the user profile
Go to run > key in %USERPROFILE%\AppData\Local\Microsoft\Windows\WER\ and press Enter key.
Cleanup the SoftwareDistribution folder: Used by Windows Update to preload downloaded updates and hotfixes before installing them. Safe to delete.
C:\Windows\SoftwareDistribution\Download
Cleanup cached folder after your computer applies a Windows patch. The files in this cache are mainly used to roll the system back when a patch is uninstalled.
C:\Windows\Installer\$PatchCache$
For those who use TightVNC, must probably the log is full. Just delete the file inside the folder.
C:\ProgramData\TightVNC

If you have questions or concerns, just let me know.

Print Spooler Error 1068: The dependency service or group failed to start.

noreply@blogger.com (Unknown) — Fri, 21 Aug 2015 11:22:00 +0000

There are several solution for these problem, but this solution suit for me;

Change the RPC Service as their dependency from command line.

To change the print spooler dependency, back to RPCSS, Please follow the below steps

Start the Command Prompt as administrator.
Now type the following command in the command line one by one followed by hitting the Enter key.

Net stop spooler
sc config spooler depend= RPCSS
Net start spooler
exit

credit to; http://www.techsupportall.com/

Inbound Connection limit in Windows

noreply@blogger.com (Unknown) — Tue, 14 Jan 2014 07:21:00 +0000

Basic need to know, Limitation connection for Windows.

Using net config server command through command prompt, we can check Maximum Logged On Users for current operating system.

In my case, Windows 7 Professional 64 bit operating system support 20 concurrent users.

Source : support.microsoft.com

Perkhidmatan Awam: JPA tolak VSS -- Guna mekanisme baru tangani pekerja bermasalah

noreply@blogger.com (Unknown) — Tue, 15 Oct 2013 16:09:00 +0000

Perkhidmatan Awam: JPA tolak VSS -- Guna mekanisme baru tangani pekerja bermasalah

How to Fix Write-Protected Read-Only Drives

noreply@blogger.com (Unknown) — Sun, 06 Oct 2013 16:02:00 +0000

There are lots of guide for unlock drive that is WRITE PROTECTED, but most of the guide are for drives that have Write Protect Switch. What if the drives does not have any kind of switch?

Open Command Prompt, right-click - Run as administrator
When the command console opens, type DISKPART
List the drives by typing LIST DISK
Select the USB drive by typing SELECT DISK 1 (if disk 1 is your USB drive)
Inspect the details for that disk by typing DETAIL DISK
Check if the disk is marked as Read-only - e.g.

DISKPART > DETAIL DISK
TOSHIBA MK2559GSXP USB Device
Disk ID: EF78DCD3
Type : USB
Status : Online
Path : 0
Target : 0
LUN ID : 0
Location Path : UNAVAILABLE
Current Read-only State : Yes
Read-only : Yes
Boot Disk : No
Pagefile Disk : No
Hibernation File Disk : No
Crashdump Disk : No
Clustered Disk : No

Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 5 H RMPARTUSB NTFS Partition 232 GB Healthy

Note: It is also possible to mark a volume as read-only, so try LIST VOLUME and SELECT VOLUME F: (where F: is your USB drive letter) and then DETAIL VOLUME to list the attributes.

**If it says 'Read-only: NO' in Diskpart but shows as 'Read-Only' in Disk Manager, then the disk is probably physically write-protected (or perhaps write-protected by the firmware in the device's internal controller). In this case the following procedure will have little affect! You should look for a write-protect (aka 'Lock' or maybe a padlock symbol) switch on the device.

**If you are sure that none exists, consider re-programming the controller firmware

Reference :
Repair your USB flash drive
How to fix write protected disks
How to fix write protection errors on a USB stick
Removing the write-protection on a USB Memory Stick or SD Card - a beginner's guide

Gems can't create makefile? Ubuntu 12.04.2

noreply@blogger.com (Unknown) — Mon, 24 Jun 2013 22:10:00 +0000

I'm getting the following result when I try to install the passenger & mysql gems.

I've followed the Ubuntu Hardy articles to setup my slice, apache & ruby/rails.

= = = = = = = = = = = = =

sudo gem install mysql
Bulk updating Gem source index for: http://gems.rubyforge.org/
.............
complete
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb install mysql
checking for mysql_query() in -lmysqlclient... yes
checking for mysql_ssl_set()... yes
checking for mysql.h... no
checking for mysql/mysql.h... yes
creating Makefile

make
sh: make: not found

Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/mysql-2.7 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/mysql-2.7/gem_make.out

= = = = = = = = = = = = =

Ok so this problem was happening with several gems. After some hunting I realised make wasn't installed.

I assume I missed a line out somewhere, the following command solved it;
sudo apt-get install build-essential

Thanks to anima from http://forum.slicehost.com

Static page bagi mengenalpasti MAC dan Hostname

noreply@blogger.com (Unknown) — Mon, 24 Jun 2013 13:31:00 +0000

Bagi membolehkan sekatan dilakukan pada Sangfor bagi spesifik komputer, unit kami membangunkan sistem aplikasi web bagi mendapatkan MAC dan Hostname tanpa perlu ke pejabat pegawai tersebut.

Kenapa sekatan dilakukan pada MAC, ini kerana IP Address di sini adalah DHCP.
Kenapa tidak dilakukan pada range IP Address, ini kerana terdapat IP Address dalam range yang sama ada yang dibenarkan full access dan ada yang tidak.
Apa yang saya lakukan di sini adalah bagi memantau dan menyelia rangkaian network di sini.
Untuk apa.. Ini tempat kerja saya...

eth0 missing in Ubuntu LTS

noreply@blogger.com (Unknown) — Sun, 23 Jun 2013 06:28:00 +0000

After fresh installation Ubuntu LTS, the machine suppose to grab IP Address from DHCP (in my situation).
Unfortunately the machine only show lo (loopback) interface.

When we check ifconfig -a | grep eth, it shows eth0 which means that the interface is exist.

The problem is the machine could not determine eth0 either static or Dynamic IP Address.

In my case, I wanted the machine to grab the IP Address from DHCP, in that case;

I just key-in sudo dhclient eth0

Then, try ping to www.google.com (for example). Good Luck

Free Open Source School, College, University Management System

noreply@blogger.com (Unknown) — Sat, 22 Jun 2013 04:22:00 +0000

Yet another open source product specialized for School, College and University Mangement Information System. Its Project Fedena, the community team did excellent job and developed the whole system into RoR (Ruby on Rails) framework.

User Management
Student Management
News Management
Miscellaneous Settings
Time Table Management
Examination Management
Attendance Management
Future Updates and Ehancements

Reference : Project Fedena

My-IT-Life

nmcli device status UNMANAGED on Ubuntu 20.04 Jammy

Changing NIC from Unmanaged to Managed State in Ubuntu

Step 1 — Check Netplan Configuration

Step 2 — Display Network Device Status

Step 3 — Check for Unmanaged Devices

Step 4 — Edit Global NetworkManager Configuration

Step 5 — Verify the Device State

Step 6 — Restart Networking

Step 7 — Test Connectivity

H3C Hardware Device Management (HDM)

H3C HDM — Hardware Device Management

Serial Number Commands

Get Serial Number — Commands for Desktops, Servers & Network Devices

Quick troubleshooting & best practice

How to Check CPU Information in Ubuntu (Simplified)

⚙️ Step 1: Quick CPU Summary

🔍 Step 2: Dive Deeper (Per-Core Info)

🧩 Step 3: Count CPU Cores

📈 Step 4: Watch CPU in Real Time

🔧 Step 5: Hardware-Level Details

📋 Quick Reference Table

💬 Bonus: Make It Fun!

Speed Up Your PC: Disable Bing Search in Start Menu

Boost Your PC Speed: Turn Off Windows Web Search in Minutes

Why disable Windows Web Search?

Choose your approach

Option A — Group Policy (Windows Pro / Enterprise)

Option B — Registry (All Windows editions)

Quick checklist — before and after

When accessing Nextcloud, should I use a VPN or connect directly over the internet?

✅ Best Practice: Use VPN When Outside Trusted Networks

❗ If You Face the Internet Directly (No VPN):

🏠 If You're Only Using Nextcloud on a Local Network:

Summary:

EVE-NG: Building a Debian 12.6 Image from NetInstall ISO

EVE-NG Image Preparation Manual: Debian 12.6 (NetInstall)

1) Create Directory

2) Create QEMU Hard Disk

3) Set Boot Order

4) Copy Debian ISO

5) Fix Permissions

6) Install Debian

7) Finalize Image

Snipe-IT : Time not accurate (Wrong Time / Worng Date)

Snipe-IT : Changing checkout consumeables directly from database.

Error 1 : Snipe-IT (your documentroot is set incorrectly)

D'oh. if you're seeing this, your DocumentRoot is set incorrectly. It should be set to the public directory.

Error 2 : Snipe-IT (Error Backup failed...)

XAMPP 8.1.6 + Snipe-IT-6.0.10

Changed Default Page For Nagios Version 4.4.x

Linux : Showing Processor Type, Memory Size, Total Disk Space

Checking for processor type.

Checking memory info using grep command.(Global Regular Expression Print)

Checking memory info using awk command.(Aho, Weinberger, Kernighan (authors))

Checking Store Size

MikroTik Variable for sharing.

Reclaiming your disk space in Windows. (PART II)

Reclaiming your disk space in Windows.

If you have questions or concerns, just let me know.

Print Spooler Error 1068: The dependency service or group failed to start.

Inbound Connection limit in Windows

Perkhidmatan Awam: JPA tolak VSS -- Guna mekanisme baru tangani pekerja bermasalah

How to Fix Write-Protected Read-Only Drives

Gems can't create makefile? Ubuntu 12.04.2

Static page bagi mengenalpasti MAC dan Hostname

eth0 missing in Ubuntu LTS

Free Open Source School, College, University Management System

Checking memory info using grep command.
(Global Regular Expression Print)

Checking memory info using awk command.
(Aho, Weinberger, Kernighan (authors))