Open Source Server Operating Systems Proxy Servers

The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are also available for download. NOTICE: V1 development has been stopped at the end of 2014 (1.10.1 build 16060). Possibly there will be done some bugfixing in future. Please upgrade to V2, which is and will be actively maintained.

OpenChange is a portable Open Source implementation of Microsoft Exchange server and Exchange protocols. It provides a complete solution to interoperate with Microsoft Outlook clients or Microsoft Exchange servers. OpenChange client-side library is used in existing messaging clients and is the solution in new projects to communicate natively with Microsoft Exchange and Exchange-compatible servers. OpenChange server is a transparent Microsoft Exchange server replacement using native Exchange protocols and does not require any plugin installation in Outlook.

Proxymizer is an anonymizer (a proxy server connecting to other proxy servers), allowing simultaneous use of several public proxy servers, one per single request. Highly extensible and configurable.

This toolkit has complete security Package start from Tweak manager , Updater , Virus scanner ,Proxy server and many more This will be help full for user from corporate to small user we have already started working on it will completed with 2 months

This Nagios plugin allows to remotely monitor Windows hosts in a AGENTLESS fashion. Technically it is using the Win32 API from a Windows proxy server to the remote host. Syntax and feature wise it mirrors NSClient++ (CPU, RAM, Disk, Svc, Proc., etc)

This project is a authentication plugin for the Squid proxy server that authenticates users against an ldapv3 server. It includes support for static and dynamic groups.

Fine tune the Windows Update behavior from a centralized server. Works with WSUS server or Windows Update from Microsoft. Features : # vbWSUS_scheduler : - each host has its own schedule like : 0 10 * * 0#3 = 3rd sunday of each month @ 10:00AM 30 12 * * 6L = last saturday of each month @ 12:00AM 5 2 15 * * = every 15th of each month @ 2:05AM 0 14 L * * = last day of each month @ 2:00PM and more... - email notifications on update starting, finished or error # vbWSUS_admin, remotely : - install/detect updates - reset sus id - hide/unhide updates - list installed updates Configurable options (globally or per host) : - login/password - proxy server - wsus server - search scope - filter updates by severity, KB or title See README.txt or contact me for more information ! :)