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Network related tutorials

Gentoo

Remote Backup Using Flexbackup and SSH

Post date: December 31, 2005, 15:12 Category: Network Views: 7765 Comments
Tutorial quote: I have a server running Gentoo Linux which hosts a Subversion repository, a vpopmail and qmail system, a MySql database and more. I’m going to make a backup copy of the data on this machine in the event that I need to rebuild this server. I have chosen Flexbackup to perform this task.
Unix+clones

Deploying Rails with Lighttpd

Post date: December 29, 2005, 07:12 Category: Network Views: 2766 Comments
Tutorial quote: In my previous essay, I said that Rails deployment can get complicated. And that it was a DIY situation. Both are true, but it doesn't have to be complicated. To help you learn how to DIY your Rails deployment and show you the easiest way to get going, here's my recipe for deploying onto a server with LightTPD.
SuSe

Installing FreeNX Server on SUSE 10

Post date: December 27, 2005, 15:12 Category: Network Views: 7164 Comments
Tutorial quote: Not long ago, I reviewed SUSE Linux 10 and found that they had included the latest version of FreeNX (a free version of NoMachine's NX Server) on the installation media. I'd never really tried FreeNX at that point but had heard some good things about it, so I thought I'd give it a shot. Well, once it was installed and working I have to say I was immediately impressed by how simple it was to setup and how well (read: fast) it performed over a WAN connection. I was literally able to get my desktop at home from anywhere else in the world and get near-local speed. Normally, working on a remote system is alright until you need to type in any shape or form. There was almost no delay from the time I'd press a key to the time it would show up on the screen. This is what sold me on FreeNX and prompted me to offer to write a HOWTO on the topic. I was overwhelmed with email from our readers asking that I write it... so here we are!
Linux

Bandwidth monitoring with iptables

Post date: December 27, 2005, 15:12 Category: Network Views: 3688 Comments
Tutorial quote: Linux has a number of useful bandwidth monitoring and management programs. A quick search on Freshmeat.net for bandwidth returns a number of applications. However, if all you need is a basic overview of your total bandwidth usage, iptables is all you really need -- and it's already installed if you're using a Linux distribution based on the 2.4.x or 2.6.x kernels.
Debian

Network profiles for a laptop

Post date: December 23, 2005, 00:12 Category: Network Views: 2541 Comments
Tutorial quote: This article explains how to configure networking in a very pleasant way, so that it works automatically wherever you go. It is adaptable to lots of uses, and may be usefull even if you don't use Wifi but connect to multiple networks.
Linux

Using iptables to rate-limit incoming connections

Post date: December 16, 2005, 22:12 Category: Network Views: 3484 Comments
Tutorial quote: There are times when you have to allow arbitary incoming connections, when you are travelling for example.

In these situations you can open up your system to allow incoming connections and be the target of a dictionary attack - literally a machine trying to connect and login over and over again using usernames and passwords from a dictionary.

In this situation you can create a collection of firewalling rules which will deny access from remote clients who attempt to connect "too many" times.
Ubuntu

SAMBA (Domaincontroller) Server For Small Workgroups With Ubuntu 5.10 "Breezy Badger"

Post date: December 14, 2005, 19:12 Category: Network Views: 3901 Comments
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.
OpenBSD

Creating secure wireless access points with OpenBSD and OpenVPN

Post date: December 13, 2005, 18:12 Category: Network Views: 7928 Comments
Tutorial quote: You know how insecure 802.11x wireless networks are. In this article we'll create an OpenBSD-based secure wireless access point that prevents unauthorized access and encrypts every packet using a VPN tunnel. OpenBSD is one of the most secure operating systems available, is easy to use, and includes almost everything you need for this project in the base installation.
OSX

A Windows Administrator's Guide to Serving Macs

Post date: December 13, 2005, 11:12 Category: Network Views: 5426 Comments
Tutorial quote: Are you Mac-savvy? Many Windows administrators and technicians have never had to support Macs on their networks, so the idea of suddenly having a handful of Mac workstations might seem really challenging. Ryan Faas gives you a simple guide to supporting Mac workstations and Mac users within your Windows network.
Linux

Cutting the tcp/ip network connection with cutter

Post date: December 13, 2005, 03:12 Category: Network Views: 2936 Comments
Tutorial quote: Recently I came across very powerful and nifty tool (used by one of our Sr. network admin). Just imagine that people in your private network using peer to peer software such as Kazaa, iMesh or others and you want to cut them or just want to cut all ftp connection over my firewall but not all traffic to host.
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