DNS Switcher

A simple Bash script to quickly switch your system DNS servers to popular providers like Shecan, Radar, Electro, Google, and more — designed for gaming, reduced ping, bypassing censorship, and stable connections.

🇮🇷 Built for users in Iran and anyone looking for fast and reliable DNS switching.

Features

• Interactive CLI to choose DNS providers

• Auto backup of /etc/resolv.conf

• Supports public and local DNS:

  • Shecan
  • Radar
  • Electro
  • DNS Pro
  • 403
  • Begzar
  • Google
  • Cloudflare

• Includes “Reset to Default” option (127.0.0.53)

• Preserves custom options and search lines

Usage

git clone https://github.com/Linuxmaster14/dns-switcher.git
cd dns-switcher
chmod +x dns-switcher.sh
sudo ./dns-switcher.sh

⚠️ You must run the script with sudo or as root to update system DNS.

Supported DNS Providers

This script includes a curated list of reliable DNS servers used widely in Iran for bypassing restrictions and improving latency:

Provider	Primary IP	Secondary IP
Shecan	178.22.122.100	185.51.200.2
Radar	10.202.10.10	10.202.10.11
Electro	78.157.42.100	78.157.42.101
Begzar	185.55.226.26	185.55.226.25
DNS Pro	87.107.110.109	87.107.110.110
403.	10.202.10.202	10.202.10.102
Google	8.8.8.8	8.8.4.4
Cloudflare	1.1.1.1	1.0.0.1

License

MIT – free for personal and commercial use. See LICENSE for details.

Author

Made with Linuxmaster14