linux documentation

by tom.mcmanus | Wed, 10/22/2008 - 18:07

This linux documentation section is just beginning. The plan is to develop a thorough linux admin site with summary and indepth information so linux users can put together a solid environment from beginning to end without grasping for straws "googling" information.-

mail servers

by tom.mcmanus | Tue, 09/22/2009 - 12:44

Anatomy of Postfix

by Ralf Hildebrandt and Patrick Koetter in Software

ssh-keygen

by tom.mcmanus | Thu, 02/05/2009 - 08:57

authentication key generation, management and conversion

SSH-KEYGEN(1) OpenBSD Reference Manual SSH-KEYGEN(1)
NAME
ssh-keygen - authentication key generation, management and conversion
SYNOPSIS

Add new drive to LVM

Since this is a VM, I simply add a new blank hard drive through VMware Infrastructure Client, in this case we're just going to reboot so the VM will pickup the new drive.

Since this is a brand new drive, we need to setup any partitions we would like on the drive. If you’re not sure what the name of the drive is, you can always do a fdisk -l first:

# fdisk -l
Disk /dev/sda: 12.8 GB, 12884901888 bytes
255 heads, 63 sectors/track, 1566 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

kernel rebuild guide

by tom.mcmanus | Wed, 10/22/2008 - 11:06

Why Rebuild?

Why rebuild the kernel? The main reason was once to optimize the kernel to your environment (hardware and usage patterns). With modern hardware there is rarely a need to recompile unless there is a particular feature of a new kernel that you must have. The performance gains are probably not noticeable unless specific benchmarks are being run.

lvm commands

by tom.mcmanus | Mon, 10/20/2008 - 16:03

Initializing disks or disk partitions

rssh

by tom.mcmanus | Thu, 10/16/2008 - 16:14

Restrict Users to SCP and SFTP and Block SSH Shell Access with rssh

cryptsetup-luks on fedora

Take a Fedora Core 5 system and encrypt (using dm-crypt and LUKS) the partition that gets mounted on /home.