Linux-Network-Automation_Scripts

Bash scripts created to automate network diagnostics, interface discovery, and system verification for CentOS and Ubuntu_servers

The scripts collect system data and output them to a dated and user-specified log file for admin troubleshooting.

Information Collected

• System Identity: Hostname config Details using hostnamectl.
• Layer 3 Networking: Active Interfaces, IP assignments, Subnet masks using ip a.
• Routing: Routing tables and default gateways routes using ip route show.
• Domain Name Resolution: Shows DNS nameservers using /etc/resolv.conf.
• Interface Configuration: raw config data (Netpaln YAML files on Ubuntu; NetworkManager .nmconnection files on CentOS).

How to use

To execute these scripts on your server terminal, you can copy or download the the script and run:

Ubuntu Server Diagnostics

chmod +x ubuntu_net_dump.sh
./ubuntu_net_dump.sh

CentOS Diagnostics

chmod +x centos_net_dump.sh
./centos_net_dump.sh

Generated Outputs

After executing, the script will output a text file that reports the requested data

• [USER]_[MM-DD-YYYY]_ubuntu_network_report.txt
• [USER]_[MM-DD-YYYY]_centos_network_report.txt

Execution check

Here are some reports generated with the scripts that ive created with sensitive data redacted

Ubuntu Verify

Centos Verify