Change DNS and searchdomain after install

[alveare1]

Version

2.4.60

Installation Method

Security Onion ISO image

Description

configuration

Installation Type

Distributed

Location

on-prem with Internet access

Hardware Specs

Exceeds minimum requirements

CPU

8 to 16 depending on node

RAM

16 or 32gb

Storage for /

512

Storage for /nsm

512

Network Traffic Collection

other (please provide detail below)

Network Traffic Speeds

Less than 1Gbps

Status

Yes, all services on all nodes are running OK

Salt Status

Yes, there are salt failures (please provide detail below)

Logs

Yes, there are additional clues in /opt/so/log/ (please provide detail below)

Detail

Need to update the dns ip and search domain on all my distributed machines.

I have found a few options but not working for me.

nmcli con mod $connection ipv4.dns "xxx.xxx.xxx.xxx,xxx.xxx.xxx.xxx"
nmcli con mod $INT_NAME +ipv4.dns 8.8.8.8

"Error: unknown connection 'ipv4.dns'"

I want to make this change permanent. I can go make the change in the /etc/resolv.conf but it reverts after reboot.

Guidelines

• I have read the discussion guidelines at Read before posting! #1720 and assert that I have followed the guidelines.

[alveare1]

nmcli con --- shows you the connections

nmcli con edit {connecting name}
remove ipv4.dns
remove ipv4.dns-search
add ipv4.dns {IP}
add ipv4.dns-search {domain}
save
quit
systemctl restart NetworkManger

This will permantantly change the DNS and search domain