014.01.44.5. Discuss the two DHCP clients mentioned in the text—ISC dhclient and systemd-networkd DHCP client. What are the key differences between them, and how can dhclient be tested on the command line?
The two clients mentioned in the text do the actual work of obtaining leases from the DHCP server. The difference between them is that:-
the ISC dhclient can be tested on the command line in the following way:-dhclient enp0s31f6, here enp0s31f6 is the network interface name whereas the system-networkd client can't do so.
ISC dhclient stores its process id in /var/run/dhclient.pid and its lease information in /var/lib/dhclient/dhclient.leases whereas systemd-networkd stores its configuration file in /etc/systemd/network .
The two DHCP clients mentioned in the text, ISC dhclient and systemd-networkd DHCP client, are responsible for obtaining leases from the DHCP server. One notable difference lies in command-line testing:
ISC dhclient can be tested using the command dhclient enp0s31f6, where enp0s31f6 represents the network interface name. It's important to note that before testing, any default gateway route should be removed. On the contrary, systemd-networkd DHCP client lacks the capability for command-line testing.
Additionally, ISC dhclient stores its process ID in /var/run/dhclient.pid and lease information in /var/lib/dhclient/dhclient.leases. Conversely, systemd-networkd DHCP client stores its configuration file in /etc/systemd/network.
