http://howtoforge.com/taxonomy/term/78/all en http://www.howtoforge.com/themes/htf_glass/images/howtoforge_logo_glass_blue.gif http://howtoforge.com/taxonomy/term/78/all http://howtoforge.com/how-to-install-zimbra-desktop-on-ubuntu8.04 <p><b>How To Install The Zimbra Desktop Email Client On Ubuntu 8.04 LTS (Hardy Heron)</b></p> <p>This article shows how you can install the Zimbra Desktop email client on an Ubuntu 8.04 LTS (Hardy Heron) desktop. Zimbra Desktop is a full-fledged replacement for email clients such as Outlook or Evolution, offering email, contacts, calendar, documents, tasks, etc. You can use it in conjunction with the Zimbra Collaboration Suite (ZCS) or any other email account that supports POP3 or IMAP.</p> <a href="http://howtoforge.com/how-to-install-zimbra-desktop-on-ubuntu8.04" title="Read the rest of this posting." class="read-more">Read more...</a> Ubuntu Desktop Email Sun, 03 Aug 2008 19:38:23 +0200 http://howtoforge.com/how-to-install-zimbra-desktop-on-ubuntu8.04 http://howtoforge.com/how-to-install-zimbra-desktop-on-ubuntu8.04#comment http://howtoforge.com/installing-clamav0.93.3-from-the-sources-plus-sendmail-integration-centos5.2 <P><B>Installing ClamAV 0.93.3 From The Sources (+ Sendmail Integration) On CentOS 5.2</b></p> <P>This how-to refers to the installation and configuration of Clamav 0.93.3 (from sources) on a Linux server running CentOS 5.2 and sendmail. We assume the fact you’ve installed sendmail from the rpm packages of your distribution.</p><a href="http://howtoforge.com/installing-clamav0.93.3-from-the-sources-plus-sendmail-integration-centos5.2" title="Read the rest of this posting." class="read-more">Read more...</a> Anti-Spam/Virus CentOS Sendmail Thu, 31 Jul 2008 15:04:01 +0200 http://howtoforge.com/installing-clamav0.93.3-from-the-sources-plus-sendmail-integration-centos5.2 http://howtoforge.com/installing-clamav0.93.3-from-the-sources-plus-sendmail-integration-centos5.2#comment http://howtoforge.com/postfix-virtual-hosting-with-ldap-and-dovecot-on-ubuntu8.04 <p><b>Postfix Virtual Hosting With LDAP Backend With Dovecot As IMAP/POP3 Server On Ubuntu Hardy Heron 8.04 TLS</b></p> <p>I've been running with a MySQL backend for virtual hosting for some time, but when I discovered Phamm and the added FTP feature (amongst others) I decided to switch to LDAP as backend for Postfix with virtual hosting. In view of the fact that the installation and configuration guide of Phamm is lacking some basic information it took me quite some time (including crying, swearing, getting depressed, ...) to put it all together and get it working. Long live google to find hints or explanations for problems and configuration issues. Piecing it all together wasn't simple so I would like to share how I configured it and got it all working toghether (as I like), but I think that it will benefit other users as well.</p> <a href="http://howtoforge.com/postfix-virtual-hosting-with-ldap-and-dovecot-on-ubuntu8.04" title="Read the rest of this posting." class="read-more">Read more...</a> Ubuntu Postfix Wed, 30 Jul 2008 18:17:49 +0200 http://howtoforge.com/postfix-virtual-hosting-with-ldap-and-dovecot-on-ubuntu8.04 http://howtoforge.com/postfix-virtual-hosting-with-ldap-and-dovecot-on-ubuntu8.04#comment http://howtoforge.com/arch-linux-mailserver-with-postfix-and-dovecot <p><b>A Simple Mailserver On Arch Linux (Postfix + Dovecot)</b></p> <p>This tutorial describes how to install a complete mailserver using Postfix and Dovecot on an Arch Linux machine or VPS. This specific tutorial is based on my 256MB VPS. Basic linux knowledge is required as I'm not describing every step in detail.</p> <a href="http://howtoforge.com/arch-linux-mailserver-with-postfix-and-dovecot" title="Read the rest of this posting." class="read-more">Read more...</a> Anti-Spam/Virus Linux Email Postfix Thu, 24 Jul 2008 15:10:49 +0200 http://howtoforge.com/arch-linux-mailserver-with-postfix-and-dovecot http://howtoforge.com/arch-linux-mailserver-with-postfix-and-dovecot#comment http://howtoforge.com/isp-mailserver-with-virtual-users-domains-postfix-dovecot-mysql-centos5.0 <p><b>How To Configure ISP Mail Server With Virtual Users/Domains On Centos 5.0 Using Postfix, Dovecot, MySQL, phpMyAdmin, TLS/SSL</b></p> <p> This howto will explain how to go about setting up an email server on Centos 5 using Postfix, Dovecot, RoundCube, Virtual Users/Domain and phpAdmin. I have also done a similar setup on Fedora Core 6. My best advice is to set this up first on a workstation and test it thoroughly before setting up on a server and going live with it!</p> <a href="http://howtoforge.com/isp-mailserver-with-virtual-users-domains-postfix-dovecot-mysql-centos5.0" title="Read the rest of this posting." class="read-more">Read more...</a> CentOS Postfix Mon, 14 Jul 2008 16:49:35 +0200 http://howtoforge.com/isp-mailserver-with-virtual-users-domains-postfix-dovecot-mysql-centos5.0 http://howtoforge.com/isp-mailserver-with-virtual-users-domains-postfix-dovecot-mysql-centos5.0#comment http://howtoforge.com/exim-authenticated-smarthost <p><b>Exim Authenticated Smarthost</b></p> <p>Today's ISP environment requires authenticated SMTP to be able to send emails. As a policy, authenticated SMTP helps cut down on folks sending SPAM and allows the ISP to track which account is sending what type of email content for further demographic study. While authenticated SMTP is good for the ISP, it is not a configuration supported <i>out of the box</i> by most Linux distributions. This means that all those system emails and log reports emailed by <i>root</i> never make it anywhere anymore.</p> <a href="http://howtoforge.com/exim-authenticated-smarthost" title="Read the rest of this posting." class="read-more">Read more...</a> Email Fri, 04 Jul 2008 17:57:02 +0200 http://howtoforge.com/exim-authenticated-smarthost http://howtoforge.com/exim-authenticated-smarthost#comment http://howtoforge.com/atmail-webmail-system-on-ispconfig-in-10-easy-steps <p><b>@Mail Webmail System On Your ISPConfig Server Within 10 Easy Steps</b></p> <p>This guide explains how to set up the Open Source version of Atmail (Atmail Open) on your ISPConfig server.</p> <a href="http://howtoforge.com/atmail-webmail-system-on-ispconfig-in-10-easy-steps" title="Read the rest of this posting." class="read-more">Read more...</a> Control Panels Email Thu, 03 Jul 2008 14:30:51 +0200 http://howtoforge.com/atmail-webmail-system-on-ispconfig-in-10-easy-steps http://howtoforge.com/atmail-webmail-system-on-ispconfig-in-10-easy-steps#comment http://howtoforge.com/zimbra-integration-with-samba-on-ubuntu <P><B>Zimbra Integration With Samba -&nbsp;Ubuntu Based (Similar To AD And Exchange)</b></p> <P>This tutorial shows&nbsp;how to configure Zimbra Collaboration Server (ZCS) and Samba to act as a primary domain controller (PDC) that uses LDAP as a centralized database for authenticating users on Linux and Windows desktops.</p><a href="http://howtoforge.com/zimbra-integration-with-samba-on-ubuntu" title="Read the rest of this posting." class="read-more">Read more...</a> Ubuntu Email Samba Fri, 27 Jun 2008 15:01:51 +0200 http://howtoforge.com/zimbra-integration-with-samba-on-ubuntu http://howtoforge.com/zimbra-integration-with-samba-on-ubuntu#comment http://howtoforge.com/how-to-whitelist-hosts-ip-addresses-in-postfix <p><b>How To Whitelist Hosts/IP Addresses In Postfix</b></p> <p>If you are administrating a mail server and use blacklists to block spam, you probably know this problem: from time to time your customers complain that they cannot receive emails from certain freemailers. Most often this happens because a freemailer was abused to send out spam and therefore got blacklisted. This short guide shows how you can whitelist such a mail server in Postfix to make your customers happy again.</p> <a href="http://howtoforge.com/how-to-whitelist-hosts-ip-addresses-in-postfix" title="Read the rest of this posting." class="read-more">Read more...</a> Postfix Tue, 10 Jun 2008 12:07:05 +0200 http://howtoforge.com/how-to-whitelist-hosts-ip-addresses-in-postfix http://howtoforge.com/how-to-whitelist-hosts-ip-addresses-in-postfix#comment http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-ubuntu8.04 <p><b>Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 8.04 LTS)</b></p> <p>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 <b>SMTP-AUTH</b> and <b>TLS</b> and <b>quota</b> (quota is not built into Postfix by default, I'll show how to patch your Postfix appropriately). Passwords are stored in <b>encrypted</b> form in the database (most documents I found were dealing with plain text passwords which is a security risk). In addition to that, this tutorial covers the installation of <b>Amavisd</b>, <b>SpamAssassin</b> and <b>ClamAV</b> so that emails will be scanned for spam and viruses. I will also show how to install <b>SquirrelMail</b> as a webmail interface so that users can read and send emails and change their passwords.</p> <a href="http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-ubuntu8.04" title="Read the rest of this posting." class="read-more">Read more...</a> Anti-Spam/Virus Ubuntu Postfix Tue, 20 May 2008 18:13:58 +0200 http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-ubuntu8.04 http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-ubuntu8.04#comment http://howtoforge.com/the-perfect-spamsnake-ubuntu-8.04 <P><B>The Perfect SpamSnake - Ubuntu 8.04 LTS</b></p> <P>This tutorial shows how to set up an Ubuntu Hardy Heron (8.04 LTS) based server as a spamfilter in Gateway mode.&nbsp;In the end, you will have a SpamSnake Gateway which will relay clean emails to your MTA.&nbsp;You will also be able to view your incoming queue, train your SpamSnake and carry out a few more advanced operations via MailWatch.</p><a href="http://howtoforge.com/the-perfect-spamsnake-ubuntu-8.04" title="Read the rest of this posting." class="read-more">Read more...</a> Anti-Spam/Virus Ubuntu Postfix Thu, 01 May 2008 18:45:36 +0200 http://howtoforge.com/the-perfect-spamsnake-ubuntu-8.04 http://howtoforge.com/the-perfect-spamsnake-ubuntu-8.04#comment http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-mandriva2008.1 <p><b>Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Mandriva 2008.1)</b></p> <p>This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I will also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. In addition to that, this tutorial covers the installation of <b>Amavisd</b>, <b>SpamAssassin</b> and <b>ClamAV</b> so that emails will be scanned for spam and viruses. I will also show how to install <b>SquirrelMail</b> as a webmail interface so that users can read and send emails and change their passwords.</p> <a href="http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-mandriva2008.1" title="Read the rest of this posting." class="read-more">Read more...</a> Anti-Spam/Virus Mandriva Postfix Sun, 13 Apr 2008 19:35:31 +0200 http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-mandriva2008.1 http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-mandriva2008.1#comment http://howtoforge.com/two-factor-authentication-google-apps-gheimdall <p><b>How to add two-factor authentication to Google Apps for your Domain using open source software</b></p> <p>Everybody loves GMail. With Google Apps for you Domain, you can use GMail with your own domain, allowing organizations to outsource their email - and the requisite anti-spam filtering to Google. Webmail is very convenient, but for frequent travellers and those who use public wifi, it can be quite dangerous. Logging in from a kiosk or shared computer is a sure way to get your username and password stolen by a keystroke logger. Using a public WiFi system can lead to a man-in-the-middle attack. In this document we will take advantage of two open source projects to add two-factor authentication to Google Apps. The first is Gheimdall, a a TurboGears project for Google Apps SSO service. Gheimdall supports PAM and LDAP authentication natively. It also includes sample code to add new authentication methods, which made it very easy to add two-factor authentication from WiKID. WiKID is a dual-source two-factor authentication solution that uses public key cryptography to strongly authenticate users.</p> <a href="http://howtoforge.com/two-factor-authentication-google-apps-gheimdall" title="Read the rest of this posting." class="read-more">Read more...</a> CentOS Fedora Email Security Fri, 04 Apr 2008 14:45:47 +0200 http://howtoforge.com/two-factor-authentication-google-apps-gheimdall http://howtoforge.com/two-factor-authentication-google-apps-gheimdall#comment http://howtoforge.com/zimbra-collaboration-suite-open-source-edition-on-centos <p><b>Zimbra Collaboration Suite Open Source Edition On CentOS</b></p> <p>This tutorial shows how to set up Zimbra Collaboration Suite - Open Source Edition on CentOS. This tutorial covers installation of CentOS, dependencies for ZCS and setup of Split DNS when working behind a firewall. This tutorial is based on the way I set this server up and is only a suggestion. It carries no guarantees and it is highly suggested that you do this on a test server first to verify functionality. If you don't have a test server available you should download VMWare Server 1.0 and perform this tutorial on a test virtual server.</p> <a href="http://howtoforge.com/zimbra-collaboration-suite-open-source-edition-on-centos" title="Read the rest of this posting." class="read-more">Read more...</a> CentOS Email Postfix Tue, 11 Mar 2008 17:37:22 +0100 http://howtoforge.com/zimbra-collaboration-suite-open-source-edition-on-centos http://howtoforge.com/zimbra-collaboration-suite-open-source-edition-on-centos#comment http://howtoforge.com/virtual-users-domains-postfix-mailscanner-mailwatch-centos5.1 <p><b>Virtual Users And Domains With Postfix, MailScanner, Mailwatch &amp; MySQL On CentOS 5.1</b></p> <p>This document describes how to customize Falko's "Virtual Users And Domains" - setup for CentOS 5.1 so that it works with MailScanner and Mailwatch. The resulting system provides a web interface (Mailwatch) where you can manage quarantined emails, train SpamAssassin, edit the white- and blacklist, view configuration files and the detailed MySQL database status ...</p> <a href="http://howtoforge.com/virtual-users-domains-postfix-mailscanner-mailwatch-centos5.1" title="Read the rest of this posting." class="read-more">Read more...</a> Anti-Spam/Virus CentOS Email Postfix Thu, 06 Mar 2008 17:59:58 +0100 http://howtoforge.com/virtual-users-domains-postfix-mailscanner-mailwatch-centos5.1 http://howtoforge.com/virtual-users-domains-postfix-mailscanner-mailwatch-centos5.1#comment