Linux Tutorials on the topic “antivirus”
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Virtual Users With Postfix, PostfixAdmin, Courier, Mailscanner, ClamAV On CentOS
Author: thim • Tags: postfix, antivirus, centos • Comments: 5Virtual Users With Postfix, PostfixAdmin, Courier, Mailscanner, ClamAV On CentOS In this how to I will explain how to setup a Postfix virtual mailserver with Courier-IMAP, Maildrop and Postfix Admin GUI. We will secure our mailserver with Mailscanner and Clamav as anti-virus and Spamassassin as anti-spam.
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Virtual Users And Domains With Postfix, Courier And MySQL (Ubuntu 6.10 Edgy Eft)
Author: Falko Timme •
Tags: antivirus, postfix, ubuntu •
Comments: 5 Virtual Users And Domains With Postfix, Courier And MySQL (Ubuntu 6.10 Edgy Eft) This document describes how to install a mail server based on Postfix that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses.
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Set Up Ubuntu-Server 6.10 As A Firewall/Gateway For Your Small Business Environment
Author: tycho • Tags: antivirus, apache, control panels, postfix, ubuntu • Comments: 5Set Up Ubuntu-Server 6.10 As A Firewall/Gateway For Your Small Business Environment This tutorial shows how to set up a Ubuntu 6.10 server ("Edgy Eft") as a firewall and gateway for small/medium networks. The article covers the installation/configuration of services such as Shorewall, NAT, caching nameserver, DHCP server, VPN server, Webmin, Munin, Apache, Squirrelmail, Postfix, Courier IMAP and POP3, SpamAssassin, ClamAV, and many more.
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Integrating amavisd-new Into Postfix For Spam- And Virus-Scanning
Author: Falko Timme • Tags: antivirus, debian, postfix, ubuntu • Comments: 2Integrating amavisd-new Into Postfix For Spam- And Virus-Scanning This article shows how to integrate amavisd-new into a Postfix mail server for spam- and virus-scanning. amavisd-new is a high-performance interface between MTAs such as Postfix and content checkers: virus scanners, and/or SpamAssassin. We will use ClamAV for virus scanning and SpamAssassin for spam scanning in this tutorial.
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How To Build A Spam Filtering Mail Gateway
Author: brian_goldberg • Tags: antivirus • Comments: 16How To Build A Spam Filtering Mail Gateway By Brian Goldberg - {brian AT carbonite D0T com} www.carbonite.com Spam has evolved from a nusance to a threat. SysAdms need a strategy for combating spam. You can use filtering software loaded on all your users computers, but that takes a lot of time to install and maitenance can be real drag on your time and resources. A better way is to use a centralised device which filters your spam before it enters your enterprise. This "Anti-Spam Gateway" is a lot easier to manage and maintain than individually installed client software. Additionally, it can be tuned to be a lot more effective.
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Fight Image Spam With FuzzyOCR And SpamAssassin On Debian/Ubuntu
Author: Falko Timme • Tags: antivirus, security • Comments: 5Fight Image Spam With FuzzyOCR And SpamAssassin On Debian/UbuntuThis tutorial describes how to scan emails for image spam with FuzzyOCR. FuzzyOCR is a plugin for SpamAssassin which is aimed at unsolicited bulk mail containing images as the main content carrier. Using different methods, it analyzes the content and properties of images to distinguish between normal mails (ham) and spam mails. FuzzyOCR tries to keep the system load low by scanning only mails that have not already been categorized as spam by SpamAssassin, thus avoiding unnecessary work.
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How To Automatically Scan Uploaded Files For Viruses With php-clamavlib
Author: Falko Timme • Tags: php, antivirus • Comments: 2How To Automatically Scan Uploaded Files For Viruses With php-clamavlib This guide describes how you can automatically scan files uploaded by users through a web form on your server using PHP and ClamAV. That way you can make sure that your upload form will not be abused to distribute malware. To glue PHP and ClamAV, we install the package php5-clamavlib/php4-clamavlib which is rather undocumented at this time. That package is available for Debian Etch and Sid and also for Ubuntu Dapper Drake and Edgy Eft, so make sure you use one of these platforms.
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Postfix with dkfilter (DomainKeys Implementation)
Author: sohaileo • Tags: antivirus, postfix • Comments: 5Postfix with dkfilter (DomainKeys Implementation) DomainKeys is an anti-spam software application in development at Yahoo that uses a form of public key cryptography to authenticate the sender's domain. dkfilter is an SMTP-proxy designed for Postfix. It implements DomainKeys message signing and verification. It comprises two separate filters, an "outbound" filter for signing outgoing email on port 587, and an "inbound" filter for verifying signatures of incoming email on port 25. This document is to describe step by step how to install dkfilter for postfix to deploy domainkeys signing and verification.
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Enhance Your Mail Server With ASSP (Anti-Spam SMTP Proxy)
Author: ovis • Tags: antivirus, postfix • Comments: 7Enhance Your Mail Server With ASSP (Anti-Spam SMTP Proxy) ASSP stands for Anti-Spam SMTP Proxy. The ASSP server project is an Open Source platform-independent transparent SMTP proxy server that leverages numerous methodologies and technologies to both rigidly and adaptively identify spam. In short ASSP is the most kickass solution that is both free and works great. It reduced spam to an absurd minimum for me.
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SIEVE Language for Mail Filtering Quick Guide
Author: alinap • Tags: antivirus • Comments: 3SIEVE Language for Mail Filtering Quick Guide SIEVE is a language created and used for mail filtering that broadens the filtering options generally provided by mail servers or Antispam/Antivirus applications. They work basically by comparing different keys using different comparators and comparison methods, against headers of a mail message. Based on the result of the comparison, you can apply different actions to the corresponding mail message, i.e. reject, discard, redirect, etc.
