Script to Harden an Ubuntu Server for an IGEL ICG Installation
Written by: Ron Neher, Solutions Architect, Systems Integrators at IGEL
Important! DO NOT take this script and blindly run on an Existing ICG!!! This script is not officially supported by IGEL support!
The following script will update and configure a FRESHLY installed version of Ubuntu Server 18.04 / 20.04 to be hardened for IGEL ICG installation.
Items installed/configured include:
Prepped for a IGEL ICG install
Time service (chrony)
OpenSSH
UFW Firewall
Fail2ban Automatic Banning
Rootkit Hunter (Rkhunter)
Port Knocking (Knockd) -- Note: install knock client on PC
ClamAV -- open source anti-virus engine
Note: If you try to run on an existing system, some of the commands, such as sed and cp, may not work as expected. Beware!
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