Logging and monitoring is covered Communication and Network Monitoring (including status reporting, logging, et al)

See also Communication Configuration (SNMP, Network configuration and management tools, etc)

See also: Communication Debugging - Status, tracing, and debugging communications and protocols.

See also: Communication Implementation (low level implementation, multicast, ppp, slip, wrappers,firewalls, et al)

See also: Communication and Network Monitoring (including status reporting, logging, et al)

See also: Socket and I/O Operations - socket() and related functions. Packet filtering.

See also: Identity Authentication - verifying the identity of the originator of a connection (passwords, radius, identd, crypto methods, et al.)

Up to Communications

Bastille-linux - Bastille Linux is a Hardening Program which enhances the security of a Linux box, by configuring daemons, system settings and firewalling. It currently hardens Red Hat 6.0-6.2 and Mandrake 6.0-6.1. {(L)GPL}

SocketWatch - SocketWatch is an anti-port scanning program. SocketWatch is configured to listen to specified ports, and if a connection is made from an unauthorized host, Ipchains is used to completely DENY the host. {(L)GPL}

TARPIT {(L)GPL}

Linux Home Firewall {(L)GPL}

SmoothWall - SmoothWall is a self-contained, stripped down Linux distribution for providing Internet access via modem, ISDN, and cable to a LAN. Web pages configure PPP, etc. It runs on a 386 with 8meg and up. No prior knowledge is required to use SmoothWall. {(L)GPL}

Bypass - Bypass is an IP forwarding/tunneling tool which can be used where limited bypassing of a firewall is necessary, but relaxing the restrictions in the actual firewall is not an option. The aim is for bypass to be automatic and transparent. {(L)GPL}

Astaro Security Linux - Astaro Security Linux is a dedicated Linux Distribution with firewalling, content-filtering and vpn features. {(L)GPL}

Black Hole Firewall - Transparent Proxy-based Firewall project. The starting premise of this firewall is that no packets will be permitted to pass through the firewall without a user-context proxy handling it. {(L)GPL}

Linux Secure Firewall Project - LSFP aims towards a small but stable Linux/Firewall distribution that can be installed of\ver the net and maintained from a central maintenance server. {BSD-like}

SonicParse - A log parser for the SonicWall firewall appliance. {(L)GPL}

SpyFire - Spyfire itīs an agent that "listen" Snort alerts and takes actions. He can rise a firewall rules and make scans on hostile machines. {(L)GPL}

Malice Vulnerability Scanner - Malice is a cgi vulnerability scanner that scans for over 200 vulnerable cgi scripts with a 'HEAD' request which is one anti ids(intrusion detection system)tactic that is included so far. Later versions will have more and scan for service exploits. {(L)GPL}

SIDEN - SIDEN is a distributed network discovery tool used for intrusion detection research purposes. It simulates coordinated/distributed network probes against a network. The traffic generated can then be analyzed to improve Intrusion Detection Systems. {(L)GPL}

Other Applications and Utilities

Inactive Orbits: (Not included on this page)