Free security gateway software software for linux

Untangle Gateway Platform is a Linux-based network gateway with pluggable modules for network applications like spam blocking, Web filtering, anti-virus, anti-spyware, intrusion prevention, VPN, SSL VPN, firewall, and more.
- Commercial-grade open source alternative to SonicWALL and WatchGuard
- 14 integrated apps - use one or all of them
- Runs on off-the-shelf hardware
Enhancements:
- A package of 5.0.1 as a VMware Virtual Appliance has been released.

This is the IRC gateway for Microsoft(tm) Messenger.

You probably wonder what this is and why I wrote this. Some more information can be found in the DESIGN document that is included in this package.

This software is written by Johannes Verelst and is licensed through the GPL license (http://www.gnu.org/licenses/gpl.html).

Note that this is pre-alpha code, it probably does a bit that you want, but dont email me bugreports or feature requests. It is under heavy development.

If this program doesnt run try to install corectly all required perl modules yourself.

The idea for this program came when I was getting annoyed by the fact that I had to use different programs for both IRC and MSN. Since I dont know of any good MSN clients that can do IRC too (on unix, ofcourse), I started thinking about the other way around: an IRC client that can do MSN.

When I saw a piece of software written by Adam Swann that allows easy connectivity to MSN with perl, I decided to write an IRC server in perl that would connect to MSN for you. This is the result.

Orion Secure Message Gateway (OrionSMG) is a secure message gateway for transporting ebXML, SOAP, and custom message formats. It complies with the OASIS ebXML 2.0 specification, and can act in both intermediary and processing MHS roles to provide end-to-end reliable messaging.
Orion Secure Message Gateway software runs natively on Linux, OS X, and Windows with ODBC/PostgreSQL database support.
Enhancements:
- OrionSvnInfo.h now in correct directory.
- Old documentation temporarily added.
- Minimal README.txt file added.

Proxmox Mail Gateway project addresses the full spectrum of unwanted e-mail traffic, focusing spam and virus detection.
E-mail security begins at the gateway by controlling all incoming and outgoing e-mail messages. Proxmox Mail Gateway addresses the full spectrum of unwanted e-mail traffic, focusing spam and virus detection.
Proxmox Mail Gateway uses a wide variety of local and network tests to identify spam signatures. This makes it harder for spammers to identify one aspect which they can craft their messages to work around.
Every single e-mail will be analyzed and gets a spam score assigned. The systems attempt to optimize the efficiency of the rules that are run in terms of minimizing the number of false positives and false negatives.
The flexible architecture combined with the easy-to-use configuration interface safeguards companies against existing and new e-mail threats.
Main features:
- Advanced spam detection
- Virus removal including phising e-mails
- Automatic update of virus signature database
- Automatic installation within minutes
- Support for standard PC / Server hardware (i386)
- SCSI and SCSI raid support
- Secure web based configuration
- Object-oriented rulesystem
- Attachment blocking
- Advanced statistics
- Daily reports

TN3270RG is a TCP/IP TN3270 gateway that dynamically assigns resources to a connection from a pool of available addresses. Features include an easy to use web interface for management and a PostgreSQL database backend.
It is useful if you have a large number of machines connecting to a TN3270 host, but for whatever reason the host itself cannot assign resources from a pool. TN3270 will keep track of a pool of resources in a PostgreSQL database (should work with other databases as well) and dynamically allocate a resource to each connnection that goes through it.
Simply configure the daemon so it knows the address of the real TN3270 host, set the resource pool up using the web management software, and point your clients to the address of the gateway.
In the client configuration set your resource to what you have the replacement token set to (!_TN3270RG_RESOURCE_! by default) and when the daemon sees that resource go by, it will substitute the resource it has allocated for the connection and pass the rest of the data stream unaltered to the host.
TN3270 Resource Gateway project is designed to be fast and stable and should recover gracefully from most errors including unexpected disconnections and database errors. It is written in Perl and uses the POE framework.
Enhancements:
- This release uses Sys::Syslog (which is actively maintained and is included in the main Perl distribution).
- All Syslog calls have been updated to prevent a highly unlikely (but still possible) format string vulnerability.
- It cleanly exits from a SIGTERM with useful logging information.

Spike PHP Security Audit Tool project is a tool that performs a static analysis of PHP code for security exploits.
Usage:
To install, unzip Spike phpSecAudit package.
> unzip spike_phpSecAudit.zip
Change directory to your php repository.
> cd /path/to/code/to/audit
Execute the run.php, passing the file name or directory to audit.
> php /path/to/spike_phpSecAudit/run.php test_file.php
or
> php /path/to/spike_phpSecAudit/run.php dir_name
Enhancements:
- Modified to be PHP 4 friendly.
- A few functions have been added to the knowledge base: extract, shell_exec, pcntl_exec, and exec.
- The organization of the knowledge base file (vuln_db.xml) has been slightly improved.
- The _getAllPhpFiles function may miss a few (unverified).
- The tokenizer needs to be able to differentiate between a native function call and class method call of the same name, i.e. mail() and $class->mail().

Network Security Toolkit is a bootable ISO live CD and its based on Fedora Core 2.
The toolkit was designed to provide easy access to best-of-breed Open Source Network Security Applications and should run on most x86 platforms.
The main intent of developing this toolkit was to provide the network security administrator with a comprehensive set of Open Source Network Security Tools. The majority of tools published in the article: Top 75 Security Tools by insecure.org are available in the toolkit.
What we find rather fascinating with NST is that we can transform most x86 systems (Pentium II and above) into a system designed for network traffic analysis, intrusion detection, network packet generation, wireless network monitoring, a virtual system service server, or a sophisticated network/host scanner.
This can all be done without disturbing or modifying any underlying sub-system disk. NST can be up and running on a typical x86 notebook in less than a minute by just rebooting with the NST ISO CD. The notebooks hard disk will not be altered in any way.
NST also makes an excellent tool to help one with all sorts of crash recovery troubleshooting scenarios and situations.
Enhancements:
- We are pleased to announce the latest NST release: v1.5.0. This release is based on Fedora Core 5 using the Linux kernel 2.6.18. Here are some of the highlights for this release: the NST Web User Interface (WUI), has been greatly enhanced and cleaned up; extensive additions to managing and analyzing network packet captures; the ability to setup and manage printers; the ability to easily mount many different supported file system types; the ability to manage the NST as a file server (both NFS and CIFS); the addition of the Inprotect package (a Nessus manager); the addition of the Zabbix package (another network resource monitoring tool - similar to Nagios)....