Setting Up Master-Master Replication On Four Nodes With MySQL 5 On Debian Etch
This tutorial explains how you can set up MySQL master-master
replication on four MySQL nodes (running on Debian Etch). The
difference to a two node master-master replication
is that if you have more than two nodes, the replication goes in a
circle, i.e., with four nodes, the replication goes from node1 to
node2, from node2 to node3, from node3 to node4, and from node4 to
node1.
Hardening The Linux Kernel With Grsecurity (Debian)
Security is based on three characteristics: prevention, protection
and detection. Grsecurity is a patch for Linux kernel that allows you
to increase each of these points. This howto was performed on a Debian Lenny system. Thus some tools
are Debian specific. However, tasks can be performed with other distro
specific tools or even with universal tools (make).
Setting Up ProFTPd + TLS On Ubuntu 8.10 (Intrepid Ibex)
FTP is a very insecure protocol because all passwords and all data
are transferred in clear text. By using TLS, the whole communication
can be encrypted, thus making FTP much more secure. This article
explains how to set up ProFTPd with TLS on an Ubuntu 8.10 server.
dmidecode: Finding Out Hardware Details Without Opening The Computer Case
dmidecode is a tool for dumping a computer's DMI (some say SMBIOS)
table contents in a human-readable format. This table contains a
description of the system's hardware components, as well as other
useful pieces of information such as serial numbers and BIOS revision.
Thanks to this table, you can retrieve this information without having
to probe for the actual hardware.
How To Back Up An Ubuntu 8.10 System With SystemImager
SystemImager
lets you create images of your Linux installations. To do so, you need
an image server (should have enough disk space to store your images)
and a so-called golden client (i.e., the system of which you want to
make an image). This means that you have to install some software on
your image server and on your golden client in order to run
SystemImager. This tutorial shows how to install a SystemImager server
and a SystemImager client, both using Ubuntu 8.10, and how to
create/update/restore/delete images.