Basic Networking

Configure static IPv4 and IPv6 addresses with nmcli. Set hostnames and hostname resolution. Make network changes that survive reboot. Open firewall ports and services.

Labs in this module

nmcli: Static IPv4 Configuration - Give a RHEL 10 server a persistent static IPv4 address with nmcli, the tool that survives a reboot where ip addr add does not. Build the who
IPv6 Addresses with nmcli - Add an IPv6 address to a connection with the same nmcli you used for IPv4, just the ipv6. keys. Pick the method with ipv6.method (auto for S
Hostname Resolution - Give a machine a stable name and teach it to resolve other names. Read and set the static hostname with hostnamectl and hostnamectl set-host
Persistent Network Connections - Make a network setting survive a reboot. The difference between a live runtime change (gone at the next boot) and a saved connection profile
firewall-cmd First Contact - First contact with firewalld on RHEL 10, driven entirely through firewall-cmd. Read the firewall with --state (running), --get-default-zone
Mission Control: Operation Uplink - The RHCSA basic-networking capstone on a real RHEL 10 machine. Wire a static IPv4 connection, add IPv6, set the hostname, add a static host