Setting a Fixed IP and DNS Server Address

Set the fixed ip
code:

gksudo gedit /etc/network/interfaces

add the following:

auto eth0
iface eth0 inet static
address xxx.xxx.xxx.xxx
netmask 255.255.255.0
gateway your-gateway-addres
s

save. Then in a terminal:

sudo mv /etc/resolv.conf /etc/resolv.conf.bak
gksudo gedit /etc/resolv.conf

replace contents with:

search your-local-domain-name
timeout:2
nameserver your-local-dns-address
nameserver your-backup-dns-address

save and exit gedit.

Then to keep resolv.conf from being overwritten on reboot:
chattr +i resolv.conf

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