Free server proxy software for linux

Net::Server::POP3proxy is a Perl module with POP3 Proxy class for working with virus scanners and anti-spam software.

SYNOPSIS

use Net::Server::POP3proxy;

# Constructors
$popproxy = new Net::Server::POP3proxy(
Action => sub { filterAction ($_[0]); },
Error => sub { die ($_[0]); },
Debug => sub { print STDERR ($_[0]); }
) or die ("Cannot init POP3 proxy server");

while ($popproxy->looper()) {
# noop
}

This module implements a POP3 proxy server to enable you to call user defined actions uppon fetching a mail from the POP3 Server.

The destination server is taken from the username, the client connects to the pop3 proxy in the way remoteuser%remote.host:port.

Multiple clients can connect to the POP proxy at a time.

Apache::ReverseProxy is an Apache mod_perl reverse proxy.

SYNOPSIS

# In Apache config file
< Location / >
SetHandler perl-script
PerlHandler Apache::ReverseProxy
PerlSetVar ReverseProxyConfig /usr/local/apache/conf/rproxy.conf
< /Location >
# In rproxy.conf / http://www.cpan.org/

This is a reverse proxy module for Apache with mod_perl. It is intended to replace Apache::ProxyPass. Given a list of URI mappings, this module will translate an incoming URI, retrieve the contents for the translated URI, and return the contents to the original requestor. This module allows you to specify exact matching (instead of regular expression matching) and handles query string translations.

CONFIGURATION

You will need to set the ReverseProxyConfig perl variable in Apache to the path of the reverse proxy mapping file. For example:

< Location / >
SetHandler perl-script
PerlHandler Apache::ReverseProxy
PerlSetVar ReverseProxyConfig /usr/local/apache/conf/rproxy.conf

# Optional configuration items:
#PerlSetVar ReverseProxyChain http://proxy.mycompany.com:8888/
#PerlSetVar ReverseProxyNoChain mycompany.com
< /Location >

ReverseProxyChain specifies a proxy server to use. This is sometimes called proxy chaining when one proxy server uses another proxy server. The ReverseProxyNoChain directive can specify a domain to not use proxy chaining on.

Reverse proxy configuration files have three fields, each separated by white space. The first field is the uri to look for, the second field is the replacement uri, and the third field is optional and allows you to specify comma separated options for the mapping. The only option that is currently supported is the exact parameter, which will make the reverse proxy use exact matching for the first parameter instead of using regular expressions. This feature is convenient when the first parameter contains characters that may need to be escaped or quotemetaed. Exact options are evaluated first. If there isnt an exact match, regular expression matches are performed. Configuration files may contain comments, which start with a pound sign. For example:

/news/ http://www.news.com/
/ http://www.perl.com/
/stats http://localhost/stats exact
# /stats maps exactly to http://localhost/stats
# /stats/b maps to http://www.perl.com/stats/b
/french/news http://www.news.com/?language=french
# /french/news/index -> http://www.news.com/index?language=french
# /french/news/index?a=b -> http://www.news.com/index?language=french&a=b

Shrew Proxy/Filter is a tiny proxy built on WEBricks HTTPProxyServer, extended for both URL and content filtering. Shrew Proxy/Filter is designed to be small, simple to configure, and easy to install.

It is extremely small, lightweight, and works quite well. All blacklists (both URL and content) are plain text, so most published lists can be simply dropped in and used.

Yet Another Filter Proxy project is a preforking, banner filtering, content scanning Perl proxy.



Yet Another Filter Proxy is a proxy to filter out advertising banners and malicious script code from web sites. It is written in Perl and based on an example by Randal L. Schwartz.

For performance reasons it uses preforking to spawn several processes of itself (like Apache does).

Unlike other available proxies (such as Junkbuster), it does blocking by Perl regular expressions on the site content, which allows you to block JavaScript and popups, in addition to normal ads.

Run perldoc yafp.pl for full readme!

IMAP Calendar Proxy implements an HTTP proxy that converts HTTP PUT requests of vcalendar data to separate messages stored on an IMAP server.

IMAP Calendar Proxy project can be used with Mozilla Sunbird/Calendar to allow storage of a calendar via IMAP.

There are many issues with the program in its current state. Consider it alpha quality, and you may lose calendar data if you use it. Its more of a proof of concept right now. Its rather slow if you have a large calendar.

Ideally IMAP support should be built into Mozilla. This is just a hack. Id like to hear any feedback on how it works. See the TODO file for features Id like to implement.

Sunbird can post calendars to a remote HTTP server via HTTP PUT and to
synchronize via a GET before a PUT. This proxy should run on the same system
you run Sunbird on. It makes a connection to an IMAP server and selects
a specified folder.

It then retrieves all calendar data from that server and caches it it memory. Any changed to the calendar are HTTP PUT to this proxy, and it determines what to do on the IMAP server (delete, change, add). Instead of posting the whole calendar back to the server, it only posts the differences.

If you run the proxy elsewhere on the network, you will not get any bandwidth
savings because the HTTP PUT and GET are still done over the network.

Net::Proxy is a Perl framework for proxying network connections in many ways.

SYNOPSIS

use Net::Proxy;

# proxy connections from localhost:6789 to remotehost:9876
# using standard TCP connections
my $proxy = Net::Proxy->new(
{ in => { type => tcp, port => 6789 },
out => { type => tcp, host => remotehost, port => 9876 },
}
);

# register the proxy object
$proxy->register();

# and you can setup multiple proxies

# and now proxy connections indefinitely
Net::Proxy->mainloop();

A Net::Proxy object represents a proxy that accepts connections and then relays the data transfered between the source and the destination.

The goal of this module is to abstract the different methods used to connect from the proxy to the destination.
A proxy is a program that transfer data across a network boundary between a client and a server. Net::Proxy introduces the concept of "connectors" (implemented as Net::Proxy::Connector subclasses), which abstract the server part (connected to the client) and the client part (connected to the server) of the proxy.

This architecture makes it easy to implement specific techniques to cross a given network boundary, possibly by using a proxy on one side of the network fence, and a reverse-proxy on the other side of the fence.

Dircproxy is an IRC proxy server ("bouncer"). Dircproxy is designed for people who use IRC from lots of different workstations or clients, but wish to remain connected and see what they missed while they were away.
You connect to IRC through dircproxy, and it keeps you connected to the server, even after you detach your client from it.
While youre detached, it logs channel and private messages as well as important events, and when you reattach itll download those logs to you using ordinary IRC protocol.
Main features:
- Runs on console, as a daemon or from inetd.
- Able to proxy many simultaneous users and IRC connections.
- Uses IRC server passwords to authenticate.
- Remains connected to server when you detach. To reattach you just use the IRC server password again, no special commands!
- Completely non-blocking throughout.
- Can connect to servers that also require a password.
- Can have a list of servers on the same network to connect to, it will cycle this list.
- Throttles data sent to server to ensure you are never flooded off.
- Can check servers to make sure they dont become "stoned".
- Reconnects to servers if connection is dropped.
- Can automatically join channels for you on first attach.
- Rejoins channels if you are kicked off.
- Can leave channels when you detach and rejoin when you come back.
- Can take measures to ensure you dont appear "idle" on IRC.
- Host and password based security.
- Easy to configure and get running.

Simple UDP proxy/pipe is an advanced UDP proxy/datapipe/packets forwarder and modifier with multiple functions.

Multiple clients allowed (you can connect many clients you want to this proxy), creation of ACP files (tcpdump capture files, just like a sniffer), packets forwarding (chat style, each packet is forwarded to all the other clients and server connected), packets injection (the tool opens a specific UDP port where you can send your customized packets which will be sent to the server), hexadecimal visualization and plugins support for the modification and visualization of the packets with some example plugins already included (Zdaemon huffman, Doom huffman, Half-life decoding and one for the replacement of the text strings).

Plugins (which work on both Windows and Linux) are very basic to create and use, just take a look at example_sudp.c for more informations.