IsinGlass is a firewall setup script designed to protect dial-up users (but also useful for others). It protects your system against security holes in programs the user may not even know they're running. Most users can run it "out of the box" without any configuration required. It will automatically detects network interfaces and IP addresses. Now works with ipchains.
Isinglass is a firewall setup script designed to protect dial-up users. It protects a user's system against security holes in programs user may not even know are running. Most users can run it "out of the box" without any configuration required. It will automatically detect network interfaces and IP addresses. isinglass-hzd is an unofficial bugfix/2.2 support release.
jftpgw is a proxy server for the FTP protocol. It is highly configurable, allowing you to use an XML-like configuration file to define almost any combination of the client's IP, the server's IP, the user name, the destination port, and so on. jftpgw supports inetd/daemon mode, transparent proxying, forwards, caching, logging, data IP and port specification (port ranges), limiting of the number of simultaeous sessions, and several proxy login styles for clients that support FTP proxies.
JFwadmin is a Java 2 high-level X11 tool for ipchains. The GUI displays easy-to-understand services. Features include scripts generation, firewall save and restore, automatic interface and IP address and routes detection, current firewall configuration display, and handling of masq-modules and port-forwarding.
The Linux dshield.org Perl Client package consists of an updated Linux dshield.org Perl client for submitting kernel firewall filter log entries to dshield.org. It has been written to implement tighter coding and better processing than the Perl client currently available on dshield.org.
Linux FreeS/WAN provides IPSEC (IP Security, which is both encryption and authentication) kernel extensions and an IKE (Internet Key Exchange, keying and encrypted routing daemon) as well as various rc scripts and documentation. It is known to interoperate with other IPSEC and IKE system already deployed by other vendors such as OpenBSD, Cisco, or CheckPoint. It also features Opportunistic Encryption, subnet extrusion, and with the appropriate patches interops nicely with Microsoft Windows XP/2000 using X.509 certificates.