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How To Combat Viruses Using Your Postfix Configuration
In this guide you will learn how to tweak the HowtoForge mail guide
for Postfix (+Auth SMTP + Quota),
http://www.howtoforge.com/virtual_postfix_mysql_quota_courier, setup to give better Virus protection. Sadly this always comes at a price as you will see later on.....
Building A Virtual Server (VPS) With Debian 3.1 (Sarge) And OpenVZ
In this HowTo I will describe the steps to be taken to prepare a server for OpenVZ virtual machines on Debian 3.1 (Sarge) 32Bit Linux. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.
Flash Player 9 on Linux (Ubuntu Dapper Drake)
This tutorial shows how to install the Flash player on a Linux system. It was tested on Dapper Drake (on an x86 - 32 bit machine).
LDAP Authentication In Linux
This howto will show you howto store your users in LDAP and authenticate some of the services against it. I will not show howto install particular packages, as it is distribution/system dependant. I will focus on "pure" configuration of all componenets needed to have LDAP authentication/storage of users. The howto assumes somehow, that you are migrating from a regular passwd/shadow authentication, but it is also suitable for people who do it from scratch.
Linux GPRS/EDGE via Bluetooth HOWTO
In this guide I will show you howto configure internet access through GPRS/EDGE, using bluetooth connection with your GSM phone.
I am using gentoo and Nokia 6310i phone, but this will work with any distribution and any bluetooth capable phone.
[Debian Sarge] Installing A Bind9 Master/Slave DNS System
In this howto we will install 2 bind dns servers, one as the master and the other as a slave server. For security reasons we will chroot bind9 in its own jail.
How To Fight Spam Using Your Postfix Configuration
In this guide you will learn how to tweak the mail guide for Postfix (+Auth SMTP + Quota), http://www.howtoforge.com/virtual_postfix_mysql_quota_courier, setup to better combat SPAM and allow a little bit of backward compatibilty of the older Qmail systems.
Securing the CentOS Perfect Setup with Bastille
This article shows how to secure a CentOS server using psad, Bastille, and some other tweaks. psad is a tool that helps detect port scans and other suspicious traffic, and the Bastille hardening program locks down an operating system, proactively configuring the system for increased security and decreasing its susceptibility to compromise.
How To Monitor A System With Sysstat On Centos 4.3
A common task for System Administrators is to monitor and care for a server. That's fairly easy to do at a moment's notice, but how to keep a record of this information over time? One way to monitor your server is to use the Sysstat package.
Create Incremental Snapshot-style Backups With rSync And SSH
As neither human nor computers are perfect (humans err / computers may fail) it is quite obvious that a good backup system will prevent from too much damage once the computer may go down. This could be either because the harddrive is failing or because of hackers or because you accidentally deleted something important.
In this tutorial I will show you how to automate backups automatically in an incremental snapshot-style way by using rSync.