Bash-Scripts

Developed a set of bash scripts to automate daily tasks, including creating a to-do list, User and Group Management and organizing files.

Network Monitoring

a Bash script designed to monitor network connectivity for specific domains. The script reads domain names from a file or accepts domain names as input parameters, and then performs a ping operation to gather network information. This information is then inserted into a PostgreSQL database.

DNS Changer

The script is a simple and easy-to-use way to change the DNS servers that your system uses. It can be useful for improving your browsing experience.

How to use

1. Make the script executable by running the following command:

    chmod +x dnsChanger.sh
   

2. Run the script with one of the following options:

   g: Changes the DNS to Google's DNS servers (8.8.8.8 and 8.8.4.4).

   sh: Changes the DNS to Shecan's DNS servers (178.22.122.100 and 185.51.200.2).

   cf: Changes the DNS to Cloudflare's DNS servers (1.1.1.1 and 1.0.0.1).

   cfg: Changes the DNS to Cloudflare's primary DNS server (1.1.1.1) and Google's primary DNS server (8.8.8.8).

   def: Changes the DNS to the default DNS server (127.0.0.53).

3. To run the script with an option, type ./dnsChanger.sh <option> in the terminal, where <option> is one of the options listed above.

   For example, to change the DNS to Google's DNS servers, you would run the following command:

    ./dnsChanger.sh g
   

Note

To use the dnsChanger.sh script as a command, you can create a symbolic link to it in one of your $PATH directories. This will allow you to run the script from anywhere in your terminal without having to specify its full path. sudo ln -s ~/path/to/dnsChanger.sh /usr/local/bin/chdns

Important

This script changes the DNS servers temporarily.