question Re: Setup FQDN for Ambari install in Archives of Support Questions (Read Only)

Setup FQDN for Ambari install

zaher_mahdhi — Wed, 24 Feb 2016 19:55:54 GMT

Hi all,

I've 4 VMs on a vps with internet access through a rebond but not visible from the internet. My problem is that i couldn't set the FQDN for each VM. I added this line to /etc/hosts for every VM: "10.10.10.x VMx.local VMx" where x is the number of the VM

Any one have an idea about how to set the FQDN ? and if not is it possible to use IP instead of FQDN ?

i've this config:

Public repond: IP : 151.xx.xx.xx

from the rebond with ssh:

VM | eth0 | | eth1 | VM1 : 192.168.1.10 10.10.10.1 VM2 : 192.168.1.11 10.10.10.2 VM3 : 192.168.1.12 10.10.10.3 VM4 : 192.168.1.13 10.10.10.4

Thanks.

Re: Setup FQDN for Ambari install

nsabharwal — Wed, 24 Feb 2016 20:02:41 GMT

@Zaher Mahdhi

Your best shot is to manage the setup through /etc/hosts

Have entries in /etc/hosts in each clutser node and also, have the same setup in /etc/hosts of your local machine.

Re: Setup FQDN for Ambari install

aervits — Wed, 24 Feb 2016 20:03:30 GMT

You need to set hostbame in /etc/sysconfig/network i dont remember exact path but check with your OS documentation. Then run

hostname

hostname -f

Re: Setup FQDN for Ambari install

nsabharwal — Wed, 24 Feb 2016 20:03:46 GMT

Please read this http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.0.0/bk_Installing_HDP_AMB/content/_check_dns.html

Re: Setup FQDN for Ambari install

nsabharwal — Wed, 24 Feb 2016 20:06:32 GMT

@Zaher Mahdhi See this http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.0.0/bk_Installing_HDP_AMB/content/_set_the_hostname.html

Re: Setup FQDN for Ambari install

zaher_mahdhi — Wed, 24 Feb 2016 20:24:12 GMT

I added this lines to /etc/hosts in every VM 10.10.10.1 VM1.local VM1 10.10.10.2 VM2.local VM2 10.10.10.3 VM3.local VM3 10.10.10.4 VM4.local VM4 Now i'm able to use "ping VMx" from every VM and ssh user@VMx works too.

hostname -f returns VMx.local

is this fine ?

Re: Setup FQDN for Ambari install

aervits — Wed, 24 Feb 2016 21:38:39 GMT

@Zaher Mahdhi just follow this guide http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.1.0/bk_Installing_HDP_AMB/content/_edit_the_host_file.html

Re: Setup FQDN for Ambari install

nsabharwal — Sat, 27 Feb 2016 09:48:05 GMT

@Zaher Mahdhi Yes, that works

Re: Setup FQDN for Ambari install

zaher_mahdhi — Mon, 29 Feb 2016 16:26:27 GMT

Thanks all, I used this method to setup the hostname and it worked ! My cluster is running now 🙂

Re: Setup FQDN for Ambari install

nsabharwal — Mon, 29 Feb 2016 17:49:05 GMT

@Zaher Mahdhi Please accept the answer to close the thread 🙂

Re: Setup FQDN for Ambari install

ashneesharma88 — Tue, 07 Jun 2016 21:32:28 GMT

to set the FQDN host name

use the command to set the hostname for temporary hostname test.test.com,

To set hostname permanently add entry in /etc/sysconfig/network for 6

HOSTNAME=test.test.com .

To resolve the all the vm hostname add the hostnamein /etc/hosts file

i.e

10.x.x.x test.test1.com

10.x.x.x new.test1.com

To set hostname permanently in cent os 7

use command

nmtui