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Unix+clones Configuring Apache - Don't Succumb To The "Slashdot Effect"
Post date: January 30, 2006, 21:01 Category: Optimizing Views: 1506 Comments: 0
Tutorial quote: Like many techno-geeks I host my LAMP website on a cheap ($150) computer and my broadband connection. I have also wondered what would happen if my site was linked on Slashdot or Digg. Specifically, would my setup be able to survive the "Slashdot Effect?" A Pentium 100mhz can easily saturate a T1's worth of bandwidth and my upload speed is capped (supposedly) at 384kbps, so the server should easily be able to handle that. My bandwidth will be saturated before the server is incapacitated, at least that's the idea.
Ubuntu SAMBA (Domaincontroller) Server For Small Workgroups With Ubuntu 5.10 "Breezy Badger"
Post date: December 14, 2005, 13:12 Category: Network Views: 1351 Comments: 0
Tutorial quote: This is a detailed description about the steps to set up a Ubuntu based server (Ubuntu 5.10 - Breezy Badger) to act as file- and print server for Windows (tm) workstations in small workgroups. This howto uses the tdb backend for SAMBA to store passwords and account information. This is suitable for workgroups for up to 250 users and is easier to setup than an LDAP backend. A second howto covering the installation of LDAP + SAMBA will be published soon.
Unix+clones Providing FTP Services with PureFTPd
Post date: April 15, 2005, 16:04 Category: Network Views: 743 Comments: 0
Tutorial quote: If you work around computers for any length of time you'll probably run into an FTP server. FTP stands for File Transfer Protocol and FTP servers are used to do just that, transfer files. FTP has been around for a long time, much longer than P2P programs, or the World Wide Web, in its day it was the primary method of sharing files with others on the Internet, and it remains very popular even today. This tutorial will cover the installation and setup of an FTP server using PureFTPd.
Unix+clones The 'no-configuration, only-active-when-needed' SSH VPN
Post date: April 12, 2005, 22:04 Category: Network Views: 874 Comments: 0
Tutorial quote: So, we started thinking about how we might set up a VPN between the application server and our internal software mirror. The only requirement is that the VPN be initiated from the "inside-out" and that the connection is only active for as long as we need to use. In other words, it would only be active during an administration session. Ideally, it wouldn't be a lot of work to setup and tear down either.

SSH to the rescue...

Fortunately, SSH client and server come with support for this out of the box, requiring no additional software to be installed, and no configuration changes. On the server side, sshd, the setting "AllowTcpForwarding" defaults to "yes" unless your sshd_config file explicitly disables it. On the client side, all you have to do is request the forwarding.
Debian How To Set Up A Load-Balanced MySQL Cluster
Post date: March 31, 2006, 13:03 Category: Software Views: 1389 Comments: 0
Tutorial quote: This tutorial shows how to configure a MySQL 5 cluster with three nodes: two storage nodes and one management node. This cluster is load-balanced by a high-availability load balancer that in fact has two nodes that use the Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster).

In this document I use Debian Sarge for all nodes. Therefore the setup might differ a bit for other distributions. The MySQL version I use in this setup is 5.0.19. If you do not want to use MySQL 5, you can use MySQL 4.1 as well, although I haven't tested it.

This howto is meant as a practical guide; it does not cover the theoretical backgrounds. They are treated in a lot of other documents in the web.
OpenBSD Apache - Serving up the Web
Post date: April 11, 2006, 17:04 Category: Network Views: 2566 Comments: 0
Tutorial quote: The Apache Web Server is installed as part of the OpenBSD base system. This guide will help you configure the web server: (Apache 1.3.12 is released with OpenBSD 2.7 and 1.3.9 with OpenBSD 2.6)

To see how configurable the Apache/OpenBSD combination is we also look at allowing administrators to remotely review the server's status, we setup the system so we allow users on our system to have their own personal web-space. Of course, for the security counscious you probably want to turn some of these things off after you get things up and running.
Ubuntu DNS server Setup using bind in Ubuntu
Post date: May 1, 2007, 00:05 Category: Software Views: 1836 Comments: 0
Tutorial quote: DNS Stands for Domain Name Service.On the Internet, the Domain Name Service (DNS) stores and associates many types of information with domain names; most importantly, it translates domain names to IP addresses

Fedora Virtual Hosting With Proftpd And MySQL (Incl. Quota) On Fedora 7
Post date: August 12, 2007, 17:08 Category: Installing Views: 768 Comments: 0
Tutorial quote: This document describes how to install a Proftpd server that uses virtual users from a MySQL database instead of real system users. This is much more performant and allows to have thousands of ftp users on a single machine. In addition to that I will show the use of quota with this setup.
Linux Hardening Linux: a 10 step approach to a secure server
Post date: June 22, 2005, 05:06 Category: Security Views: 1419 Comments: 0
Tutorial quote: The Internet has become a far more dangerous place than it was 20 years ago. Nowadays, Operating System and application security is an integral part of a server configuration and, while firewalls are very important, they are not the panacea.

This list of steps is intended as a guideline with a practical approach. We’ll try to provide a complete picture without getting into unnecesary details. This list won’t replace a good book on secure systems administration, but it will be useful as a quick guide.

Before we get started it’s worth to mention that security is not a status: it’s just a process. The correct initial setup of the server only provides a good start and helps you get half the way through. But you actually need to walk the other half of the road, by providing proper security vigilance, monitoring and updating.
Debian Virtual Hosting With Proftpd And MySQL (Incl. Quota) On Debian Etch
Post date: April 27, 2007, 18:04 Category: Installing Views: 891 Comments: 0
Tutorial quote: This document describes how to install a Proftpd server that uses virtual users from a MySQL database instead of real system users. This is much more performant and allows to have thousands of ftp users on a single machine. In addition to that I will show the use of quota with this setup.