Quick HOWTO : Ch14 : Linux Firewalls Using iptables – Linux Home Networking.
This site was also linked here last May but is so useful I needed to bring it to the top again. Here’s a pertinent figure that describes the iptables process that I seem to need to reference all the time when editing the iptables config file.
Setting Up Squid In Gateway As A Transparent Proxy – Welcome to SourceLINUX Wiki...
Good howto for setting up squid. This link was also posted last May.
After reading several reviews, I chose ejabberd. Ejabberd can be downloaded from the previous link, but it also has the advantage of being located in the Ubuntu repositories. I created a Ubuntu Server and loaded ejabberd using “sudo apt-get install ejabberd”. Couldn’t be easier! And using a virtual machine to build the server means I can install it at customer locations without building a new server every single time, it will just need to be reconfigured once it is spun up.
via Building an XMPP Server – Part 1 | Jameson Networks Blog.
Ejabberd is also part of the fedora repositories but not part of the CentOS repos.
For the impatient, here is our simple script. We’ll explain it afterwards. This is assuming that you’re on a 192.168.1.0/24 network with no DHCP server.
#!/bin/sh
PATH=$PATH:/usr/sbin:/sbin
sudo brctl addbr br0
sudo ifconfig eth0 0.0.0.0
sudo brctl addif br0 eth0
sudo ifconfig br0 192.168.1.120 netmask 255.255.255.0 up
sudo route add -net 192.168.1.0 netmask 255.255.255.0 br0
sudo route add default gw 192.168.1.1 br0
sudo tunctl -b -u john
sudo ifconfig tap0 up
sudo brctl addif br0 tap0
export SDL_VIDEO_X11_DGAMOUSE=0
sudo iptables -I RH-Firewall-1-INPUT -i br0 -j ACCEPT
qemu-kvm ~/win2k.img -m 512 -net nic -net tap,ifname=tap0,script=no
Booting grub with the Fedora PXE vmlinuz/initrd images allows you to perform a network installation of Fedora over any existing linux distro, should you not be able to write to or boot from the conventional CD/DVD install media. A PXE netinstall can both be done locally, and with extra care, remotely using VNC. Both methods are explained in this HOWTO.
via Installing Fedora Using PXE Images — Fedora Unity Project.
This tutorial provides step-by-step instructions on how to install Xen (version 3.0.1) on a Debian Sarge (3.1) system.
Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called “virtual machines” or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers’ web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it’s more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.
Via The Perfect Xen 3.0.1 Setup For Debian | HowtoForge – Linux Howtos and Tutorials.
This howto works for other distros as well.
I’ve gone this far without ever having to compile a kernel … until now. 🙂 Though the howto is a bit dated, I downloaded the latest xen distro here. (xen 4.1.1)
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.
LDAP Authentication In Linux | HowtoForge – Linux Howtos and Tutorials.
Digital (dis)content: HOWTO: setting up a VOD server with VLC.
This sounds too complicated. The stream needs to be defined inside the app by loading a config file. It might be useful for certain applications however.