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The /etc/hosts file is a static database of host-names / FQDN and IP addresses. It's suitable for small, relatively static networks. However, it can be a pain for networks where there are frequent changes.
Every time a system is added or removed, you'll have to change this file not on the local system., but also on every other system on that network.
A simple version of file showing different local systems with their IP addresses :
192.168.122.50 server1.example.com
192.168.122.150 tester1.example.com
192.168.100.100 outsider1.example.com
127.0.0.1 localhost.localdomain localhost
The /etc/hosts file is a static database of host-names / FQDN and IP addresses. It's suitable for small, relatively static networks. However, it can be a pain for networks where there are frequent changes.
Every time a system is added or removed, you'll have to change this file not on the local system., but also on every other system on that network.
A simple version of file showing different local systems with their IP addresses :
192.168.122.50 server1.example.com
192.168.122.150 tester1.example.com
192.168.100.100 outsider1.example.com
127.0.0.1 localhost.localdomain localhost
