HowtoForge - Linux Howtos and Tutorials - Commercial

How To Block Porn Pictures And Images With SafeSquid Proxy Server

Tue, 19 Aug 2008 14:40:33 +0200

How To Block Porn Pictures And Images With SafeSquid Proxy Server

Administrators can use various methods to block access to websites that are pornographic in nature, like URL Filter, URL Blacklist, Keyword Filter, etc. But many porn sites allow users to register their email IDs on their website and deliver the latest images and pictures to their personal emails. So if a user is allowed access to his personal mail, he can enjoy himself without having to access any porn site. Such images are also regularly displayed as ads and banners on other web pages, that might not be pornographic in nature. Pornographic Image Filter can analyze an image in real-time, and identify the ones that are pornographic in nature. It analyzes the graphical content like skin tone, contour, etc. to identify a pornographic image. It is a commercially distributed add-on plug-in and can be used with SafeSquid to block pornographic images. Although it is about 85%-90% accurate, it acts as a good deterrent.

How To Set Up A Cisco Lab On Linux (CentOS 5.2)

Wed, 06 Aug 2008 22:37:40 +0200

How To Set Up A Cisco Lab On Linux (CentOS 5.2)

I recently decided to study for the Cisco CCSP certification. My main concern in the beginning was the fact that most of the lab simulation software that I found out there could only run on Windows, this was a problem for me given the fact that I do not own a windows computer. After a quick search I found the wonderful Dynamips project that goes beyond what other simulators do by running actual Cisco IOS images, as well as the PEMU project which allows for running of Cisco PIX images. To integrate the various pieces of software and provide an interface for interaction with the devices I used dynagen.

Deploying A Content Filtering Proxy Server To Distribute Controlled Internet Access With SafeSquid

Fri, 07 Mar 2008 14:31:24 +0100

Deploying A Content Filtering Proxy Server To Distribute Controlled Internet Access With SafeSquid

A content filtering proxy server, helps distribute Internet access while providing control to the administrators over the content delivered. It is usually used in organizations or schools to ensure that Internet usage conforms to the local acceptable use policy. A content filtering proxy must necessarily accommodate the demands of granular rules for Internet access privileges and restrictions across an enterprise.

How to Configure OpenLDAP for the AXIGEN Mail Server

Fri, 25 May 2007 18:03:21 +0200

How to Configure OpenLDAP for the AXIGEN Mail Server

LDAP stands for Lightweight Directory Access Protocol. This protocol is used to access a directory listing. It is being implemented in Web browsers and e-mail programs to enable lookup queries (searches for certain types of information). When compared to other querying architectures such as SQL databases, lookup speed is the major advantage of using LDAP. In large companies, a huge number of requests are made and storing the information in a database becomes a very resource consuming approach. The basic principle behind LDAP is the optimization toward many record reads and few additions or modifications. From an administrator's point of view, LDAP is fairly easy to use as long as the concepts behind the system are understood. It is not the most user-friendly application to use, but the benefits it provides are worth the extra effort.

Install a Mail Server with Antivirus and Antispam in 15 Minutes

Thu, 08 Feb 2007 20:40:24 +0100

Install a Mail Server with Antivirus and Antispam in 15 Minutes

This article illustrates a situation where you need to set up your own mail server (be it your home mail server, or a small office one). It actually shows that, if using an integrated service mail server, anyone can do the job, all in a matter of minutes. AXIGEN Mail Server, the solution chosen for this example, can send and receive e-mails securely via "mydomain.com" and is able to retrieve them in a WebMail interface - this means that it includes all mail services needed for a fully functional mail server (SMTP, IMAP, POP3, WebMail, WebAdmin).

Integrating SquirrelMail with AXIGEN

Fri, 12 Jan 2007 12:12:20 +0100

Integrating SquirrelMail with AXIGEN

This document aims to explain how to install and configure SquirrelMail on a machine to act as a webmail interface for AXIGEN. It also focuses on what would be the best choice as a webmail interface in different scenarios.

Integrating the AXIGEN Messaging Solution with Amavis

Wed, 18 Oct 2006 12:05:17 +0200

Integrating the AXIGEN Messaging Solution with Amavis

This document describes the steps required to perform an integration of the AXIGEN Mail Server with Amavis, in order to insure antivirus protection and functionality. Amavis is a generic interface used to connect a mail server to a number of antivirus products.

Through Amavis, AXIGEN users have access to twelve different Antivirus applications: Kaspersky, BitDefender, Sophos, F-Prot, DrWeb, Symantec, F-Secure, Avast, eTrust, Norman, Panda and McAfee. At this time, the AXIGEN Messaging Solution integration with Amavis has been sucessfully tested for BitDefender and for Kaspersky Kav4Mailserver.

How to Setup an Axigen Mail Server with Antivirus and Anti-spam protection

Thu, 31 Aug 2006 10:59:18 +0200

How to Setup an Axigen Mail Server with Antivirus and Anti-spam protection

This how-to illustrates a situation where you need to set up your own mail server (be it your home mail server, or a small office one) with antivirus and anti-spam protection. It actually shows that, if using an integrated service mail server, the procedure is quite simple and shouldn't take more than half an hour.