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Fedora+Core The Perfect Setup - Fedora Core 5 (64-bit)
Post date: April 13, 2006, 03:04 Category: Miscellaneous Views: 48
Tutorial quote: This is a detailed description how to set up a Fedora Core 5 based server that offers all services needed by ISPs and hosters (web server (SSL-capable), mail server (with SMTP-AUTH and TLS!), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.). This tutorial is written for the 64-bit version of Fedora Core 5, but should apply to the 32-bit version with very little modifications as well.
Unix+clones The 'no-configuration, only-active-when-needed' SSH VPN
Post date: April 12, 2005, 23:04 Category: Network Views: 40
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.
Ubuntu SAMBA (Domaincontroller) Server For Small Workgroups With Ubuntu 5.10 "Breezy Badger"
Post date: December 14, 2005, 14:12 Category: Network Views: 148
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.
Gentoo Enterprise Volume Management System Mini How-To
Post date: April 13, 2005, 16:04 Category: System Views: 205
Tutorial quote: Here is a rough write-up on how I installed Gentoo 1.4_rc1 on EVMS, with the exception of the root partition. If you choose so, see the EVMS Howto for instructions on how to mount your root file system on an EVMS volume. I felt the hassle of dealing with a EVMS (or LVM, for that matter) root outweighs its advantages.

This is a very basic setup I used for my laptop. I only needed it so I don't have to worry about getting the partition sizes right from the beginning and to be able to adjust them with ease in the future. I've been using LVM with success but I couldn't find a way to resize the volume group itself. This, the fact that afaik there is no support for LVM in kernel 2.5.x and a new laptop needing a fresh installation made me try EVMS.
Debian Creating a Wiki with kwiki
Post date: December 17, 2005, 17:12 Category: Software Views: 52
Tutorial quote: Wikis are simple interactive websites which are extremely easy to use for storing easily updated text content. Using a Wiki you can easily create a lot of content with hyperlinks between them. Debian has packaged several different Wiki systems and here we'll look at installing just one of them: KWiki.

Wikis have become familiar to many people thanks to the popularity of large sites such as Wikipedia and can be very useful for creating collaborative websites.

Whilst there are many Wiki packages included in the Debian GNU/Linux distribution I've always had a soft spot for KWiki due to its simplicity, Perl nature, and low requirements.

Installing the software under Debian is very simple and we will show how to setup a new installation using the Debian Apache2 webserver package.
Linux Hardening Linux: a 10 step approach to a secure server
Post date: June 22, 2005, 06:06 Category: Security Views: 156
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 Setting Up A Highly Available NFS Server
Post date: April 1, 2006, 00:04 Category: Network Views: 23
Tutorial quote: In this tutorial I will describe how to set up a highly available NFS server that can be used as storage solution for other high-availability services like, for example, a cluster of web servers that are being loadbalanced. If you have a web server cluster with two or more nodes that serve the same web site(s), than these nodes must access the same pool of data so that every node serves the same data, no matter if the loadbalancer directs the user to node 1 or node n. This can be achieved with an NFS share on an NFS server that all web server nodes (the NFS clients) can access.

As we do not want the NFS server to become another "Single Point of Failure", we have to make it highly available. In fact, in this tutorial I will create two NFS servers that mirror their data to each other in realtime using DRBD and that monitor each other using heartbeat, and if one NFS server fails, the other takes over silently. To the outside (e.g. the web server nodes) these two NFS servers will appear as a single NFS server.

In this setup I will use Debian Sarge (3.1) for the two NFS servers as well as for the NFS client (which represents a node of the web server cluster).