notes/IT/Troubleshooting/sudo unable to resolve host after hostname change.md

Edit `/etc/hosts` to include a line under the `localhost` one with a loopback IP and the new hostname, eg
```
127.0.0.1     localhost
127.0.0.1     newhostname
```
vault backup: 2023-09-20 17:57:33 2023-09-20 23:57:33 +00:00			Edit `/etc/hosts` to include a line under the `localhost` one with a loopback IP and the new hostname, eg
			```
			`127.0.0.1 localhost`
			`127.0.0.1 newhostname`
			```