Add: script for auto testing resolve domain to specific interface

README.md

@@ -15,7 +15,7 @@ This repo holds most of my random small scripts, configs, paws(blobs)
 * [Shell Scripts](#shell-scripts)
   * [24-bit-color.sh](#24-bit-color-sh)
   * [rsync-incremental-backups.sh](#rsync-incremental-backups-sh)
-
+  * [set_dns_search_domain.sh](#set_dns_search_domain-sh)
 ---
 
 ## Configs
@@ -48,3 +48,26 @@ This script echoes a bunch of 24-bit color codes to the terminal to demonstrate
 ### rsync-incremental-backups.sh
 
 This script performs incremental backups of the specified source directory using rsync, and it keeps a symbolic link called 'latest' pointing to the most recent backup for easy reference. The script also logs backup details in a log file with a timestamp. Make sure to replace `<input folder>` and `<output folder>` with your actual source and backup directories.
+
+---
+
+### set_dns_search_domain.sh 
+
+Is a small script that runs the resolvectl domain command when the specific a Wi-Fi network is gets connected.
+
+* **To configure the system to run the script:**  
+You can configure your system to execute the script whenever the Wi-Fi connection event occurs. This typically involves using network manager scripts or similar mechanisms provided by your Linux distribution.  
+replace the `<Your_Targeted_WiFi_SSID>`, `<interface>` and  `<domain>` with the actual values you have.  
+For example, with NetworkManager, you can place the script in the /etc/NetworkManager/dispatcher.d directory. Scripts in this directory are executed when network events occur.
+
+```Bash
+sudo cp set_dns_search_domain.sh /etc/NetworkManager/dispatcher.d/
+```
+
+Ensure that the script has execute permissions:
+
+```Bash
+sudo chmod +x /etc/NetworkManager/dispatcher.d/set_dns_search_domain.sh
+```
+
+The script will be automatically executed whenever the Wi-Fi connection event occurs. When the targeted Wi-Fi network is connected, the DNS search domain will be set for the specified interface.

ShellScripts/set_dns_search_domain.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# Check the SSID of the connected Wi-Fi network
+current_ssid=$(nmcli -t -f active,ssid dev wifi | grep -E '^yes' | cut -d\: -f2)
+
+# Check if the connected Wi-Fi network is the one you want to target
+if [ "$current_ssid" = "<Your_Targeted_WiFi_SSID>" ]; then
+    # Set the DNS search domain for the taget interface
+    resolvectl domain <interface> <domain>
+fi