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We are experienced in the design, installation and administration of key open source software, such as the following:
   

  Samba is an open-source implementation of Microsoft's SMB/CIFS protocol created by Andrew Tridgell for file and printer sharing. Samba lets Linux computer function as Windows NT or 2003 file servers, offering better performance and stability at almost zero software cost.
  

Sendmail is an open source electronic mail transfer agent that can be used to send or receive e-mail messages. Sendmail is a remarkably flexible program, supporting many kinds of mail transfer and delivery including the overwhelmingly popular SMTP. Sendmail is regarded as the standard MTA under most variants of the Linux/Unix operating system. According to one study, as of November 2001 approximately 42% of the publicly reachable mail servers on the Internet were running sendmail on some form of Linux/Unix system.  
  

  MailScanner is already a highly respected open source e-mail security system, with more users than AOL and Hotmail combined. MailScanner scans all e-mail for viruses, spam and attacks against security vulnerabilities. It is not tied to any particular virus scanner, but can be used with any combination of 14 different virus scanners. Being open source, site administrators can audit and verify the integrity of the system. Its role is a major part in the security of a network, and so it must act as a trusted service. The only way to achieve the required level of trust is to be open source, an approach the commercial suppliers are not willing to take. MailScanner has been developed in a world-leading Electronics and Computer Science Department at the University of Southampton, and is distributed for *FREE* under the GNU Public License. It processes 500 million e-mail messages every day, removing 2 million viruses and identifying 75 million spam messages. MailScanner is used at 20,000 sites around the world protecting top government departments, commercial corporations and educational institutions. It is becoming a standard feature of many ISP's as virus protection and spam filtering are now essential requirements for most users.
  

SpamAssassin is an extensible email filter that is used to identify spam. Once identified, the mail can then be optionally tagged as spam for later filtering. SpamAssassin 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. It is distributed under the same terms and conditions as other popular open-source software packages such as the Apache web server.  
  

  The Shoreline Firewall, more commonly known as “Shorewall”, is high-level tool for configuring Netfilter. You describe your firewall/gateway requirements using entries in a set of configuration files. Shorewall reads those configuration files and with the help of the iptables utility, Shorewall configures Netfilter to match your requirements. Shorewall can be used on a dedicated firewall system, a multi-function gateway/router/server or on a standalone GNU/Linux system. Shorewall does not use Netfilter's ipchains compatibility mode and can thus take advantage of Netfilter's connection state tracking capabilities.
  

Squid proxy cache is used to cache static web pages (html and images) to a Linux server on the local network. When the page is requested a second time, the browser returns the data from the local proxy instead of the origin web server, thus improving internet bandwidth savings. The internet browser is explicitly configured to direct all HTTP requests to the proxy cache, rather than the target web server. Squid proxy caching server provides Internet access control and comes with a cache analysis report generator which allows you to view "where" your users are going to on the Internet  by providing many informations about  users activities: times, bytes, sites, etc...  
  

  Poptop is the PPTP server solution for Linux. PPTP stands for Point to Point Tunneling Protocol and is used for establishing VPN (Virtual Private Network) tunnels across the Internet. This allows remote users to securely and inexpensively access their corporate network from anywhere on the Internet.
  

Clam AntiVirus is an ant-ivirus toolkit for Linux.It provides a flexible and scalable multi-threaded daemon, a fast command line scanner and an advance update tool for automatic virus database updating via internet. Clam AV detects over 30000 Viruses, Worms and Trojans including macro viruses.  
  


OpenOffice.org is a free  productivity suite compatible with all major office suites. OpenOffice.org gives you everything you'd expect in office software. You can create dynamic documents, analyse data, design eye-catching presentations, produce dramatic illustrations, and open up your databases. You can publish your work in Portable Document Format (.pdf), and release your graphics in Flash (.swf) format - without needing any additional software. If you're used to using other office suites - such as Microsoft Office - you'll be completely at home with OpenOffice.org. However, as you become used to OpenOffice.org, you'll start to appreciate the extras that make your life easier. You can of course continue to use your old Microsoft Office files without any problems - and if you need to exchange files with people still using Microsoft Office, that's no problem either.
  

HylaFAX™ is an enterprise-class system for sending and receiving facsimiles as well as for sending alpha-numeric pages. The software is designed around a client-server architecture. Fax modems may reside on a single machine on a network and clients can submit an outbound job from any other machine on the network. HylaFAX™ is designed to be very robust and reliable. The fax server is designed to guard against unexpected failures in the software, in the configuration, in the hardware and in general use. HylaFAX™ can support multiple modems and a heavy traffic load. HylaFAX™ is freely available under copyright in complete source form. It may be used in commercial applications in part or in whole without charge.  
  

  The Apache httpd server is a powerful, flexible, HTTP/1.1 compliant web server. It is highly configurable and extensible with many third-party modules. Apache has been shown to be substantially faster, more stable, and more feature-full than many other web servers. Apache is run on sites that get millions of hits per day, and they have experienced no performance difficulties. It is distributed  with full source code and comes with an unrestrictive license.
   

Access email and address books from anywhere in the world with only a web browser! SquirrelMail is a standards-based webmail solution with built-in PHP support for the IMAP and SMTP protocols, SquirrelMail's interface is rendered in pure HTML 4.0 for maximum compatibility across browsers. It has all the functionality you would want from an email client, including strong MIME support, address books, and folder manipulation.  
   


*HylaFAX is a trademark of Silicon Graphics Corporation



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