How To Configure Static IP On CentOS 6

Linux Static IP

## Configure eth0
#
# vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE="eth0"
NM_CONTROLLED="yes"
ONBOOT=yes
HWADDR=A4:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static
NAME="System eth0"
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
IPADDR=192.168.1.44
NETMASK=255.255.255.0


## Configure Default Gateway
#
# vi /etc/sysconfig/network

NETWORKING=yes
HOSTNAME=centos6
GATEWAY=192.168.1.1


## Restart Network Interface
#

/etc/init.d/network restart

## Configure DNS Server
#
# vi /etc/resolv.conf

nameserver 8.8.8.8      # Replace with your nameserver ip
nameserver 192.168.1.1  # Replace with your nameserver ip

Thanks! Helped a lot.

Thank you so much.

Great! Thanks for share!

Thanks

Great!
it's work confirm!!!!

thanks

Wow you don't know how much I did battle with a broken set-up because of bad advice.
Because of this write-up it now works beautifully.
Thank you!

Thanks..

I must say when I started configuring static IP's on Cent OS 7 via CLI it was pretty confusing, but then i understood it - it became much easier. Without need to disable Network Manager, just type this command “nmtui” to open Network manager and edit any connection. This is super easy and no VI , NANO are needed. Plus can reset adapter too. Hope this will help others as well. Regards!

Thanks, It's helpful to me.

How about /etc/hosts file which has reference to server along with alias?

@Azhung I had the same issue but fixed it by adding the line GATEWAY=10.0.1.1 (Replacing with your correct gateway, of course) to /etc/sysconfig/network-scripts/ifcfg-eth0

@fernandoaleman @Azhung

Can't figure it out. Seems to have a problem setting the IP. I'm trying to set it to 192.168.1.223

$ ping 8.8.8.8
connect: Network is unreachable

$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        ether [snipped] txqueuelen 1000 (Ethernet)
        RX packets 23993 bytes 1768614 (1.6MiB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 2243 bytes 634063 (619.2 KiB)
        TX errors 0 dropped 0 overrun 0 carrier 0 collisions 0
        device interrupt 20 memory 0xf7c00000-f7c20000
lo: [snipped: irrelevant]

Thanks! Lower is better!

Thank you

Thank you. :-)

Thanks!!!!

Muchas gracias - been using this for a long time as reference for static IP. Rock on!

Thank you very much!

thank you..

Thank you so much 👍 :D

For IP ranges you can also use my scirpt: https://github.com/jonsbun/add-ips-centos

@Arinerron: set up your default gateway, no gateway, your systems only knows your local network (192.168.1.x/y). Furthermore you should use ip add sh, instead of ifconfig nowadays.

OMG THANK YOU! Spent half a day trying to figure out how to create a static IP on CentOS.. this took me 5 mins to do.

Make sure to refer to /usr/share/doc/initscripts-*/sysconfig.txt (search for /etc/sysconfig/network-scripts/ifcfg) - that's the only built-in documentation for this mechanism.

Okay so dumb question that I probably don't need to worry about, is there a difference when you do ONBOOT=yes versus ONBOOT="yes" with quotes? I get using quotes if there's a space in it like your example of NAME="System eth0" but does it matter for one word entries like yes or no?

I have done all the things as guided but still internet is not working, on using ping command it says unknown hosts: . I did exactly same as asked.please do help me.i tried almost everything.

Thank you so much :)

its nice thank u

thank you :-)