Firewall & Security setup

Setting up firewalls and server security to protect against external threats. Experience with various tools to enhance infrastructure protection.

- Configuration and management of firewalls using iptables, ufw.
- Protecting servers from unauthorized access using fail2ban, ssh hardening.
- Installation and configuration of intrusion detection systems.
- VPN configuration for secure access.
- Setting up selinux/apparmor for additional kernel-level protection.
- Monitoring attacks using syslog, fail2ban, and other systems.