Autologin with Centos 6.5

sudo vi /etc/gdm/custom.conf

# Add the below lines

[daemon]
AutomaticLoginEnable=true
AutomaticLogin=username

Making Fedora 20 more livable

Making Fedora 20 more livable

#Enable the logout button
gsettings set org.gnome.shell always-show-log-out true

#Install gnome-classic-session
sudo yum -y install gnome-classic-session

#Set gnome fallback as default to avoid punishing your users with Gnome3 crap
gsettings set org.gnome.desktop.session session-name gnome-fallback

Setting up a static ip on Centos 6

I was installing a Centos 6.5 guest in a XenServer and since I wanted a static ip for this virtual machine, I ended up without GUI or tool to setup the static ip. So I had to resort to command line fu. Here is the tutorial I followed.

http://www.how2centos.com/centos-configure-network/

ltsp Centos 6

http://recallstack.wordpress.com/2013/10/28/instalar-servidor-ltsp-en-centos-6/

xrdp install for Centos 6

Just follow this tutorial

http://platelunch.net/?p=492

Xdmcp Centos 6

Enable xdmcp Centos 6


vi /etc/X11/xdm/Xaccess
#uncomment line with *

vi /etc/X11/xdm/xdm-config
# comment line with requestport 0

vi  /etc/gdm/custom.conf

[security]
DisallowTCP=false
AllowRemoteRoot=true
[xdmcp]
Enable=true
[greeter]
IncludeAll=true

Install PXE install server Centos 6.5

I found that the CentOS wiki was pretty outdated so I wrote this quick guide to setup a PXE install server on Centos 6.5 i386. Change i386 to x86_64 for 64bit installations

#Pseudo-scritp to install Centos 6.5 PXE server

sudo su -l
yum -y install syslinux tftp-server

vi /etc/xinetd/tftp

# Change disable to yes

service xinetd restart

chkconfig xinetd on

# Change according to your ARCH/Version
mkdir -p /tftpboot/images/centos/i386/6.5

#Download iso file for livecd
cd ~/Downloads
wget http://mirror.ovh.net/ftp.centos.org/6.5/os/i386/images/pxeboot/vmlinuz
wget http://mirror.ovh.net/ftp.centos.org/6.5/os/i386/images/pxeboot/initrd.img

# Copy images to directory

cp vmlinuz /var/lib/tftpboot/images/centos/i386/6.5/vmlinuz

cp initrd.img  /var/lib/tftpboot/images/centos/i386/6.5/initrd.img

#Edit dhcpd server

vi /etc/dhcpd/dhcpd.conf

#Add this to your dhcpd.conf file
#Change the below for your server ip

allow booting;
allow bootp;
option option-128 code 128 = string;
option option-129 code 129 = text;
next-server xxx.xxx.xxx.xxx;
filename "/pxelinux.0";

service dhcpd restart

#Copy files into tftpboot
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot
cp /usr/share/syslinux/menu.c32 /var/lib/tftpboot
cp /usr/share/syslinux/memdisk /var/lib/tftpboot
cp /usr/share/syslinux/mboot.c32 /var/lib/tftpboot
cp /usr/share/syslinux/chain.c32 /var/lib/tftpboot


mkdir /var/lib/tftpboot/pxelinux.cfg

#Create menu
vi /var/lib/tftpboot/pxelinux.cfg/default

#Add the following
DEFAULT linux
PROMPT 100

LABEL linux
  KERNEL images/centos/i386/6.5/vmlinuz
  APPEND initrd=images/centos/i386/6.5/initrd.img

-----------------------
# Install nfs server

yum -y install nfs-utils

vi /etc/idmapd.conf

# line 5: uncomment and change to your domain name

Domain = server.world

vi /etc/exports

# write like below *note

/var/lib/tftpboot 172.16.0.0/16(rw,sync,no_root_squash,no_all_squash)

/etc/rc.d/init.d/rpcbind start 

/etc/rc.d/init.d/nfslock start 

/etc/rc.d/init.d/nfs start 

chkconfig rpcbind on 

chkconfig nfslock on 

chkconfig nfs on