Articles by topdog

  • Virtual Hosting Howto With Virtualmin On CentOS 5.1

    Author: topdogTags: , , , , , , , , Comments: 17

    Virtual Hosting Howto With Virtualmin On CentOS 5.1 This tutorial shows how to set up a CentOS 5.x server to offer all services needed by virtual web hosters. These include web hosting, smtp server with (SMTP-AUTH and TLS, SPF, DKIM, Domainkeys), DNS, FTP, MySQL, POP3/IMAP, Firewall, Webalizer for stats.

  • Set Up Postfix DKIM With dkim-milter

    Author: topdogTags: , , Comments: 14

    Set Up Postfix DKIM With dkim-milter DKIM is an authentication framework which stores public-keys in DNS and digitally signs emails on a domain basis. It was created as a result of merging Yahoo's domainkeys and Cisco's Identified Internet mail specification. It is defined in RFC 4871.

  • Set Up DKIM On Postfix With dkim-milter (CentOS 5.2)

    postfix Author: topdogTags: , Comments: 7

    Set Up DKIM On Postfix With dkim-milter (CentOS 5.2) DKIM is an authentication framework which stores public-keys in DNS and digitally signs emails on a domain basis. It was created as a result of merging Yahoo's domainkeys and Cisco's Identified Internet mail specification. It is defined in RFC 4871. We will be using the milter implementation of dkim http://dkim-milter.sf.net on CentOS 5.2.

  • Mail Server Setup With Exim, MySQL, Cyrus-Imapd, Horde Webmail On Centos 5.1

    Author: topdogTags: , Comments: 8

    Mail Server Setup With Exim, MySQL, Cyrus-Imapd, Horde Webmail On Centos 5.1 This how to describes the installation and configuration of a mail system on Centos 5.1 with selinux enabled for enhanced security. This system will be able to service HTTP, HTTPS, SMTP, TLS, SMTP-AUTH, IMAP, POP3 clients and is virtual enabled allowing more than one domain to be served from the system.

  • Set Up A Linux PlayStation 3 Media Server (CentOS 5.2)

    centos Author: topdogTags: Comments: 10

    Set Up A Linux PlayStation 3 Media Server (CentOS 5.2) The Sony PlayStation 3 is a DLNA compatible device, DLNA is a framework where home electronics can share digital media and content seamlessly. This tutorial is a followup to the previous howto on Ubuntu. Given that I like most others use CentOS as their server distribution of choice, I find it fitting to run my DLNA server on it as well. Although several other open source media servers exist, I chose to use Fuppes due to its ease of use as well as built in support for transcoding.

  • Set Up A Linux Playstation 3 Media Server (Ubuntu Hardy Heron)

    Author: topdogTags: , Comments: 34

    Set Up A Linux Playstation 3 Media Server (Ubuntu Hardy Heron) The Sony Play station 3 is a DLNA compatible device, DLNA is a framework where home electronics can share digital media and content seamlessly. This tutorial will provide instructions on setting up your Ubuntu hardy computer to share your video, music and photos, allowing you to play them through your DLNA compatible devices. Although several other open source media servers exist, i chose to use Fuppes due to its built in support for transcoding.

  • Mailscanner/Exim Gateway With Communigate PRO Guide

    Author: topdogTags: , Comments: 0

    Mailscanner/Exim Gateway With Communigate PRO Guide In this tutorial we will be installing and setting up Mailscanner as a mail firewall in front of a Communigate pro cluster. This tutorial has been written for the CENTOS 5.x Linux distro but am sure it can be used for any other Linux based system with little modifications. The system will run with SELinux in enforcing mode.

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

    Author: topdogTags: , , , , Comments: 5

    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.

  • How To Set Up DHCP Failover On Centos 5.1

    Author: topdogTags: , Comments: 1

    How To Set Up DHCP Failover On Centos 5.1 This tutorial will walk you through setting up DHCP fail over on CentOS 5.1 using the default ISC dhcp server, this can easily be adapted to any other Linux distro out there. You will most likely need Failover in environments where network down time can not be tolerated. My home is running a DLNA setup so I need my devices to be able to obtain network parameters at all times.

  • How To Implement Domainkeys In Postfix Using dk-milter

    Author: topdogTags: , , Comments: 8

    How To Implement Domainkeys In Postfix Using dk-milter Domainkeys is "DomainKeys is a method of e-mail authentication. Unlike some other methods, it offers almost end-to-end integrity from a signing to a verifying Mail Transfer Agent (MTA). In most cases the signing MTA acts on behalf of the sender, and the verifying MTA on behalf of the receiver. DomainKeys is specified in Historic RFC 4870, which is obsoleted by Standards Track RFC 4871, DomainKeys Identified Mail (DKIM) Signatures." according to the wikipedia. So why a how to on it when there is DKIM ? Well domainkeys is still actively being used and is more widely deployed than DKIM, the developer Yahoo still uses it to sign and verify mail although they are contributers to the DKIM standard.