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Microbrew MicroSieve is designed to be a high speed spam filter for USENET news. It searches for duplicate and large articles, spambots, and binaries in non-binary groups. After using some other filter programs written in Perl, it was clear that there needed to be a faster way to filter spam...

Delta project assists users in minimizing "interesting" files, subject to a test of their "interestingness". A common such situation is when attempting to isolate a small failure-inducing substring of a large input that causes a program to exhibit a bug. The best way to understand how to use...

NAT iptables firewall script is an iptables firewall script. This script is meant to be run once per boot the rules will be double added if you try to run it twice if you need to add another rule during runtime, change the -A to a -I to add it to the top of the list of rules if you use -A it...


Platforms: *nix

SPF Sendmail milter is a Sendmail filter that implements the Sender Policy Framework technology with help of libSPF2 library. It checks SPF records to make sure that the email is authorized by the domain name that it is coming from. This prevents email forgery, commonly used by spammers,...


Platforms: *nix

Tie::Scalar::Sticky is a Perl module with block assignments to scalars. SYNOPSIS use strict; use Tie::Scalar::Sticky; tie my $sticky, Tie::Scalar::Sticky; $sticky = 42; $sticky = ; # still 42 $sticky = undef; # still 42 $sticky = 0; # now its zero tie my $sticky, Tie::Scalar::Sticky...


Platforms: *nix

Firewall Monitor allows you to monitor ipchains/iptables output in realtime. It supports both logging to a file/stdout and/or to tcpdump format capture logs. It also supports security features such as running non-root, and chrooting itself. Fwmon can easily be integrated into an existing...


Platforms: *nix

The Linux UPnP Internet Gateway Device Project is an attempt to begin work on a UPnP Forum-compliant Internet Gateway Device. It allows Windows Messenger or other this kind of programs to use voice/video through a Linux firewall running Iptables. This program only creates DNAT (portmap)...


Platforms: *nix

Perceptual Image Diff is an image comparison utility that makes use of a computational model of the human visual system to compare two images. Its useful for running automated regression testing on images that are perceptually identical but have minor pixel noise from different random number...


Platforms: *nix

Wflogs is a firewall log analysis tool. It can be used to produce a log summary report in plain text, HTML and XML, or to monitor firewalling logs in real-time. This project is part of the WallFire project, but can be used independently. Usage examples: wflogs -i netfilter -o html...


Platforms: *nix

mod_antispam is an apache module which can control referer spam. By using this module, you can control referer spam accesses. As you know, sometimes you can see referer spam access in your log files. their purpose is to lead you to spam website by recording their website address in your log...


Platforms: *nix

userv is a tool for system administrators, who often find themselves with a program running as one user which needs to be able to do certain things as another user. For example, my machines news system needs to scan my users newsrcs to ensure that the right newsgroups are fetched. Before userv...


Platforms: *nix

The InterNetNews package (INN) is a complete Usenet system. It includes innd, an NNTP server, and nnrpd, a newsreading server. INN separates hosts that feed you news from those that have users reading news. INN was originally written by Rich Salz (grab the USENIX paper Rich wrote about it here)....


Platforms: *nix

p3pmail provides a tool that removes dangerous HTML tags from email. p3pmail will remove dangerous HTML tags from email messages to make them safer for viewing. It does this by skipping the header of the email message before parsing it for dangerous HTML tags. It will only parse HTML email....


Platforms: *nix

phPOP3clean is a PHP-based POP3 email scanner.It's designed to be run as a cron job every minute or so, and to catch & delete several types of unwanted emails:a) malformed emails - incomplete or malformed headers, which cause    some POP3 servers to drop connection when the message is...


Platforms: Windows, Mac, *nix, PHP, BSD Solaris

mod_authnz_external is an Apache module used for authentication. The two modules provide basically the same functionality, and differ mainly in the way they interface to other authentication code in Apache. For Apache 2.1 and later, mod_authnz_external should be prefered. The Apache HTTP...


Platforms: *nix

BlackMail is a highly configurable SMTP mail filter that runs at a system level as a proxy to your existing mailer. Selectively reject bogus or spam mail during receipt, saving you extra storage space or irate users. Blackmail operates at a system-wide level: all incoming and optionally...


Platforms: *nix

HTTP::GetImages is a spider to recover and store images from web pages. SYNOPSIS use HTTP::GetImages; $_ = new HTTP::GetImages ( dir => ., todo => [http://www.google.com/,], dont => [http://www.somewhere/ignorethis.html,http://and.this.html], chat => 1, ); $_->print_imgs;...


Platforms: *nix

No-relay SMTP daemon is a lightweight mail server whose sole purpose is to receive incoming messages and deliver them to local users. Its main "feature" (or non-feature, really) is to be completely unable to relay messages to adjacent servers: if an incoming message is not addressed to a local...


Platforms: *nix

amavisd-new is a high-performance and reliable interface between mailer (MTA) and one or more content checkers: virus scanners, and/or Mail::SpamAssassin Perl module. amavisd-new is written in Perl, ensuring high portability, reliability and maintainability. It talks to MTA via (E)SMTP or LMTP...


Platforms: *nix

Net::Milter provides a masquerade as the MTA to communicate with email filters through a milter interface. SYNOPSIS use Net::Milter; my $milter = new Net::Milter; $milter->open(127.0.0.1,5513,tcp); my ($milter_version,$returned_actions_ref,$returned_protocol_ref) =...


Platforms: *nix