Template:Menu content security

Security

How to secure your server / workstation ?

Global security

Anti-virus / anti root-kits / Fail2Ban

• Anti-virus
• Rootkit cleaner
• Fail2ban

SSH

SSH

• SSH Client

• How-to generate SSH key

• SSH server setup
• SSH server using local user / password auth.
• SSH server using key auth.
• SSH server using LDAP user auth.
• SSH server using LDAP key auth.

Firewall

This section explains HOW to create, maintain and use a firewall with IpTables.

Firewall
Basics	Firewall principle
	Firewall basics
	Firewall core (main) protocols
	Firewall VPN
	Firewall OUTPUT filters
	Firewall INPUT filters
Advanced	Firewall port forwarding
	Firewall source address filtering
Installation and scripts	Firewall installation scripts

SSL

SSL certificates and chain of trust

SSL server

VPN

Virtual Private Network (VPN)

• VPN introduction

• VPN server

• VPN client

Remote desktop

Remote desktop

• Remote desktop using SSH tunneling

Intrusion Detection / Protection

Protection is good, but that's not enough! We need to detect attacks.

• IDS = Intrusion Detection System : tool that detect attacks.
• IPS = Intrusion Protection System : detect an intrusion attempt and react upon it.

I'm using one of the most famous IDS: "Snort" (https://www.snort.org/).

• Snort IDS installation
• Snort IDS web-UI

Crontab

To run some task / scripts periodically

crontab