Dear Experts,
I configured 2 node RAC on my personal machine.
Vmware Machine 1 : NODE1
Vmware Machine 2 : NODE2
Vmware Machine 3 : DNS SERVER ( For testing purpose i configured long back, mostly i do not use this machine).
Today early morning i stared my DNS machine after that
When i checked my Vmware Machine 1, some changes noticed (following below):
[root@rac-p111 ~]# cat /etc/resolv.conf
# Generated by NetworkManager
# No nameservers found; try putting DNS servers into your
# ifcfg files in /etc/sysconfig/network-scripts like so:
#
# DNS1=xxx.xxx.xxx.xxx
# DNS2=xxx.xxx.xxx.xxx
# DOMAIN=lab.foo.com bar.foo.com
After shutdown DNS Server (I started VMware Machine 2 i.e NODE 2 (but i see old contents are there )
[root@rac-p112 ~]# cat /etc/resolv.conf
# Generated by NetworkManager
domain localdomain
search localdomain
nameserver 192.168.226.2
#############################
###### NOTICE ###############
#############################
# https://www.cyberciti.biz/faq/dhclient-etcresolvconf-hooks/
# chattr +i /etc/resolv.conf
# chattr -i /etc/resolv.conf
--------------------------------------------------------------------------------------------------------------------------------------------------------------
Does DNS play vital role for Internet connection issues ?
FYI : I have executed below command on NODE1
# chattr -i /etc/resolv.conf
Thanks