linuxexpert-practice-labs/labs/rhcsa/8-3-network-at-boot

RHCSA 8.3: Network connections at boot

Making a static profile come up at boot, and turning that off and on.

Before you start

The lab gives this VM a spare network interface, eth1, cabled to a small lab network, 192.168.50.0/24, where a machine answers at 192.168.50.1. It comes back at every boot. It also adds a static profile for it, as in chapter 8.1: eth1-static, with 192.168.50.10/24, which doesn't come up at boot and isn't up now. Your SSH connection doesn't use eth1, so leave the main interface alone.

Task 2 ends where task 1 does, so the lab runs a small service, le-lab-watch, that notes the profile's state (and every boot) for the check.

Tasks

1. Make eth1-static come up automatically at boot. After a reboot, nmcli device shows eth1 connected with it, and ip addr shows its address.
2. Turn autoconnect off for eth1-static and reboot: nmcli -f NAME,AUTOCONNECT,DEVICE connection show shows it with no and no device. Then turn it back on and bring it up.

Hints

• nmcli connection modify eth1-static connection.autoconnect yes, nmcli connection up.
• nmcli device, ip -br addr show eth1, nmcli -f NAME,AUTOCONNECT,DEVICE connection show.