This article recommends open source software that employ different techniques to make it harder for a server running SSH to be compromised.
Read moreTag: intrusion prevention
SSHGuard – protects hosts from brute-force attacks against SSH and other services
SSHGuard is an intrusion prevention system that parses server logs, determines malicious activity, and uses the system firewall.
Read moreDenyhosts – helps thwart SSH server attacks
DenyHosts is a Python script that analyzes the sshd server log messages to determine what hosts are attempting to hack into your system.
Read moreiptables – configure the Linux kernel and later packet filtering ruleset
iptables is a user space application program that allows a system administrator to configure the Netfilter tables, chains, and rules.
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