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gpgdir - Recursive directory encryption with GnuPG gpgdir is a perl script that uses the CPAN GnuPG::Interface module to encrypt and decrypt directories using a gpg key specified in ~/.gpgdirrc. Download Man Page Source Code gpgdir supports recursively descending through a directory in order to make sure it encrypts or decrypts every file in a directory and all of its subdirectories. In addition,

psad: Intrusion Detection and Log Analysis with iptables psad is a collection of three lightweight system daemons (two main daemons and one helper daemon) that run on Linux machines and analyze iptables log messages to detect port scans and other suspicious traffic. A typical deployment is to run psad on the iptables firewall where it has the fastest access to log data. Download Documentation Feat

fwsnort: Application Layer IDS/IPS with iptables fwsnort parses the rules files included in the SNORT ® intrusion detection system and builds an equivalent iptables ruleset for as many rules as possible. fwsnort utilizes the iptables string match module (together with a custom patch that adds a --hex-string option to the iptables user space code which is now integrated with iptables) to detect app