linuxsi - System Information Script

This Bash script provides a quick overview of system information, including CPU load, memory usage, disk information, external IP addresses, and more. The script is designed to be run in a terminal environment.

Requirements

• lm-sensors: Install using:

  # Debian
  apt-get install lm-sensors
  
  # RHEL
  yum install lm_sensors

• lsb_release: Install using:

  # Debian
  apt-get install lsb-core
  
  # RHEL
  yum install redhat-lsb-core

Optional Requirement

• Fail2ban: The script checks for the existence and readability of Fail2ban logs.

Installation

1. SSH Configuration:

   vim /etc/ssh/sshd_config

   Set PrintMotd no.

2. Edit the Login Configuration:

   vim /etc/pam.d/login

   Comment out the line # session optional pam_motd.so.

3. Add to Profile:

   vim /etc/profile

   Add /path/to/script.sh at the bottom.

4. Drop the Script: Drop the script file at /path/to/script.sh.

Usage

Simply execute the script in a terminal:

bash /path/to/script.sh

Notes

• The script provides information on CPU load, memory usage, disk utilization, external IP addresses, and more.
• It includes a timeout feature to avoid long hangs during SSH login.

Disclaimer

This script is provided as-is and may require adjustments based on your system configuration. Use it at your own risk.