Is /etc/hosts still used to override DNS name resolution on Fedora?

I'm working on Fedora 31. I need to override DNS resolution for one domain. Using /etc/hosts I would add:

172.16.2.1 example.com
172.16.2.1 

I'm not sure what I am supposed to do nowadays with Systemd. I can't find a discussion in the Fedora System Administration Guide. The internet is returning noise and fodder.

How do we override DNS resolution for one name on Fedora 31 with Systemd?

Here is /etc/resolv.conf:

$ cat /etc/nsswitch.conf | grep -v '#' | sed -r '/^\s*$/d'
passwd: sss files systemd
shadow: files sss
group: sss files systemd
hosts: files dns myhostname
bootparams: files
ethers: files
netmasks: files
networks: files
protocols: files
rpc: files
services: files sss
netgroup: sss
publickey: files
automount: files sss
aliases: files

1 Answer

Yes, modifying /etc/hosts is the proper way to override standard DNS.

It will not work if you are using DNS over HTTPS (DOH).

Some operating systems and browsers will require their internal DNS cahces to be flushed for immediate changes in name resolution.