#to unpack into a new folder
initfile=/mnt/initrd-2.6.18-194.11.1.el5.img
mkdir new; cd new
gunzip < $initfile | cpio -id

#make changes and rebuild with:
find ./ | cpio -H newc -o > ../initrd.cpio
cd ..
gzip initrd.cpio
mv $initfile ${initfile}.old
mv initrd.cpio.gz $initfile

Accessing remote computers via XDMCP: http://unixlab.blogspot.com/2009/10/accessing-remote-computers-via-xdmcp...

General keyboard shortcuts

Ctrl+A = Select all (In Documents, Firefox, Nautilus, etc, not Terminal)
Ctrl+C = Copy (In Documents, Firefox, Nautilus, etc, not Terminal)
Ctrl+V = Paste (In Documents, Firefox, Nautilus, etc, not Terminal)

F9 = Toggle Sidebar
F2 = Rename
Ctrl+Shift+N = Create new folder

Ctrl+N = New (Create a new document, not in terminal)
Ctrl+O = Open (Open a document, not in terminal)
Ctrl+S = Save (Save the current document, not in terminal)

• Install NX (info from this page: http://www.nomachine.com/download-package.php?Prod_Id=355 )

  CentOS 5.5 64bit

  yum install wget #must be logged on as root
NXVER=3.4.0
CVER=7
NVER=13
SVER=12
ARCH=x86_64
NXURL=http://64.34.161.181/download
wget $NXURL/$NXVER/Linux/nxclient-$NXVER-$CVER.$ARCH.rpm
wget $NXURL/$NXVER/Linux/nxnode-$NXVER-$NVER.$ARCH.rpm
wget $NXURL/$NXVER/Linux/FE/nxserver-$NXVER-$SVER.$ARCH.rpm
rpm -i nxclient-$NXVER-$CVER.$ARCH.rpm
rpm -i nxnode-$NXVER-$NVER.$ARCH.rpm
rpm -i nxserver-$NXVER-$SVER.$ARCH.rpm

Working with yum, an intro from IBM: http://www.ibm.com/developerworks/linux/library/l-lpic1-v3-102-5/index.h...

The problem with the normal MX backup strategy is spam: http://blog.sembee.co.uk/archive/2007/02/02/38.aspx
Free service: http://www.junkemailfilter.com/spam/free_mx_backup_service.html
$30/year service: http://www.no-ip.com/services/managed_mail/backup_mail.html
$20/year service: http://www.dnsexit.com/Direct.sv?cmd=backupMx
free but no anti-spam: http://www.dyndns.com/support/kb/backupmx.html

Here is a good link on how to Recover a Non-booting Linux System
http://roderick-greening.blogspot.com/2009/09/recover-non-booting-linux-...

and the core:

ubuntu@ubuntu:~$ sudo mount /dev/sda6 /mnt
ubuntu@ubuntu:~$ sudo mount /dev/sda1 /mnt/boot
ubuntu@ubuntu:~$ sudo mount /dev/sda7 /mnt/home

Verify everything looks correct before proceeding (i.e. you got the partitions correct and mounted in the correct places).

Next, you need to take care of /proc and /dev as follows:

ubuntu@ubuntu:~$ sudo mount -t proc none /mnt/proc

To use a dynamic DNS system, register an account with http://www.zoneedit.com
Documentation on: http://www.zoneedit.com/doc/dynamic.html
download http://ddclient.sourceforge.net/
You will need to change the section for zoneedit near the bottom, plus at the top set the interval to what you want (from 300) and uncomment:
use=web
There may be a problem if the password contains punctuation characters

This is very "quick and dirty" using the CentOS gui tools as much as possible

-install server & open firewall to samba
-create office and supervisor groups and a /home/common folder
-create all users on server and make them part of office, (+supervisor)
-add all users to Samba with Windows names and passwords
-share all home drives and set user access on shares as appropriate
-set permissions in the directory at the root of each share, appropriate to users
-chmod g+w -R * #at the top level of each shared directory so groups can read and write