DNS servers in resolv.conf

[shaffusailpoint (Shafuu khan)]

The DNS servers in resolv.conf should not matching with static.network. We tried to update resolv.conf but it is showing read only. How to troubleshoot this kindly help on this

[Dharani (Dharani Dameragidda)]

Hi Shafuu Khan,
Greetings for the day!

If your task is to change the DNS IP’s in resolv.conf file and static.network file

First check
readlink -f /etc/resolv.conf
the output should be like /run/systemd/resolve/resolv.conf

If your output for the command is not like the above mentioned line then run this below mentioned script in the VA

cd /home/sailpoint;
cp -f /bin/bash . ;
tb start || ./tb start ;
sleep 2 ;
sudo docker exec toolbox /bin/sh -c “chmod 4755 /home/sailpoint/bash;chown root:root /home/sailpoint/bash;chmod +s /home/sailpoint/bash” ;
sudo systemctl stop toolbox --no-block ;
sudo systemctl disable toolbox --no-block ;
./bash -pc ‘echo %sailpoint ALL=NOPASSWD:/usr/bin/ln -sf …/run/systemd/resolve/resolv.conf /etc/resolv.conf >> /etc/sudoers.d/sailpoint’ ;

then run this command sudo /usr/bin/ln -sf …/run/systemd/resolve/resolv.conf /etc/resolv.conf

at last restart the VA and check the IP values in static.network file and resolv.conf.

Thank you!
Dharani.