Author: mahmood

Share your PC’s Internet to the Ubuntu Server through SSH

- by mahmood

Best case: your PC can SSH into the Ubuntu server

Run this on your PC:

ssh -N -R 127.0.0.1:1080 ubuntu_user@UBUNTU_SERVER_IP

This creates a SOCKS proxy on the Ubuntu server at:

127.0.0.1:1080

Traffic from the Ubuntu server will go through SSH and exit from your PC’s internet connection.

On the Ubuntu server, test it:

curl --proxy socks5h://127.0.0.1:1080 https://ifconfig.me

Other case: Ubuntu server can SSH into your PC

Then run this on the Ubuntu server:

ssh -N -D 127.0.0.1:1080 pc_user@PC_IP
curl --proxy socks5h://127.0.0.1:1080 https://ifconfig.me

More reliable option: use an HTTP proxy through SSH

Run an HTTP proxy on your Windows PC

For example, if you already use one of these apps:

App Common HTTP / mixed proxy port
v2rayN 10809 or similar
Clash Verge / Clash for Windows 7890
NekoRay / NekoBox usually configurable

Use the app’s HTTP or mixed proxy port.

ssh -N -R 127.0.0.1:1080:127.0.0.1:7890 ubuntu_user@UBUNTU_SERVER_IP

 

Disable SmartScreen via Group Policy in Windows 11

- by mahmood

Open the Local Group Policy Editor: Press Windows + R, type gpedit.msc into the Run dialog, and click “OK”.

Navigate to the Policy: Go to the following path in the left panel:
Computer Configuration → Administrative Templates → Windows Components → File Explorer
(Note: In some Windows 11 versions, this may be named “Windows Explorer” instead.)

Open the Policy Setting: In the right panel, double-click “Configure Windows Defender SmartScreen”.

Disable SmartScreen: In the window that opens, select the Disabled option and click Apply and then OK to save the changes.

Create an SSH User with a non-interactive Shell

- by mahmood

Create the Restricted System User

sudo useradd -r -s /bin/false -m -d /home/proxyuser proxyuser

Set Up Authentication

sudo passwd proxyuser

Configure SSH Daemon

sudo nano /etc/ssh/sshd_config
Match User proxyuser
    AllowAgentForwarding no
    AllowTcpForwarding yes
    X11Forwarding no
    PermitTTY no
    ForceCommand /bin/false

Restart the SSH Service

sudo systemctl restart ssh
# or
sudo systemctl restart sshd

 

Force Administrator Global Elevation via Registry in Windows

- by mahmood

If you want every single .exe you launch to attempt to run with your full Admin token by default, you can tweak the registry.

Press Win + R, type regedit, and hit Enter.

Navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

Look for the value EnableLUA.

Double-click it and change the Value Data to 0.

Restart your computer.

Install Rust GNU toolchain on Windows

- by mahmood

Install MSYS2

  • Download & Install: Download the installer from the official MSYS2 website and run it. Using the default installation path (e.g., C:\msys64) is highly recommended

pacman -Syu
pacman -S --needed base-devel mingw-w64-x86_64-toolchain

Set Up and Configure Rust

rustup target add x86_64-pc-windows-gnu
rustup toolchain install stable-x86_64-pc-windows-gnu
rustup set default-host x86_64-pc-windows-gnu

Create (or edit) a file at %USERPROFILE%\.cargo\config.toml. Add these lines to explicitly tell Cargo which linker and archiver to use; replace C:\msys64 with your actual MSYS2 path if different

[target.x86_64-pc-windows-gnu]
linker = "C:\\msys64\\mingw64\\bin\\gcc.exe"
ar = "C:\\msys64\\mingw64\\bin\\ar.exe"

 

Blank Screen on Ubuntu Server

- by mahmood

Blank screen after idle: setterm --blank 1 (the number is the timeout in minutes)

Blank screen immediately: setterm --blank force

To turn the screen back on, run setterm --blank poke

Permanent Solution (Automatic on Boot)

sudo nano /etc/systemd/system/setterm-blank.service
[Unit]
Description=Blank screen after 1 minute idle
After=multi-user.target

[Service]
Type=oneshot
Environment="TERM=linux"
ExecStart=/usr/bin/setterm --blank 1 --term linux
StandardOutput=tty
TTYPath=/dev/tty0

[Install]
WantedBy=multi-user.target
sudo systemctl enable setterm-blank.service
sudo systemctl start setterm-blank.service

Or

sudo nano /etc/default/grub

Find the line GRUB_CMDLINE_LINUX_DEFAULT and add consoleblank=60 (60 = seconds before blanking):

GRUB_CMDLINE_LINUX_DEFAULT="quiet consoleblank=60"
sudo update-grub
sudo reboot

 

Install Chocolatey on Windows

- by mahmood 
Set-ExecutionPolicy Bypass
Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))

 

Capture All Traffic to and from a Specific IP Address in Wireshark

- by mahmood 
ip.addr == 104.19.230.21

  • ip.addr matches packets where the source OR destination IP is 104.19.230.21.

  • It works for both IPv4 and IPv6 (though here it’s IPv4).

You could also use:

ip.src == 104.19.230.21 or ip.dst == 104.19.230.21

  • If you want to see only traffic from that IP (responses to you), use ip.src == 104.19.230.21.

  • If you want only traffic to that IP (your requests), use ip.dst == 104.19.230.21.

Single WordPress Instance with Multiple Domains

- by mahmood

Add the following code to your wp-config.php file, right before the line that says /* That's all, stop editing! Happy publishing. */

$domain = array("domain1.com", "www.domain1.com", "domain2.com", "www.domain2.com");
if (in_array($_SERVER['HTTP_HOST'], $domain)) {
    define('WP_SITEURL', 'http://' . $_SERVER['HTTP_HOST']);
    define('WP_HOME', 'http://' . $_SERVER['HTTP_HOST']);
}

This code dynamically sets the site URL based on how a visitor accesses the site, ensuring both domains work correctly.

Important Considerations:

  • Allow All Domains: If you want to allow any domain pointing to your server, replace the if (in_array(...)) block with just the two define lines, though using the domain array is safer to prevent unwanted access.

  • HTTPS Support: If your site uses HTTPS, change 'http://' to 'https://' in both define statements.

  • Subdirectory Installations: If WordPress is in a subdirectory (e.g., /wp), modify the code accordingly: define('WP_SITEURL', 'http://' . $_SERVER['HTTP_HOST'] . '/wp');.

  • Avoid Plugin Conflicts: When testing, temporarily deactivate plugins to check for conflicts.