CompTIA · Linux+ XK0-006
Network configuration and tools
Linux+ XK0-006 · Lesson 5 of 28 · 31:52
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In this lesson
Prepare for the Linux+ XK0-006 exam (CompTIA Linux+ V8). In this lesson: name resolution (/etc/hosts, /etc/resolv.conf, nsswitch.conf), NetworkManager and nmcli, Netplan (try, apply, status), the ip command, routes, DNS and socket tools (dig, ss, nc, curl), and link, speed, and packet tools (ethtool, tcpdump, mtr), with Pinecrest Media, a fictional video streaming company, as the running example. Includes three original practice questions.
Preview the topics
- An admin edits the Netplan file of a web server over SSH, and a typing mistake could cut the connection. Which command applies the change and rolls it back on its own if the admin can no longer confirm?
- On one storage server, the name of the catalog database resolves to an old address, while the DNS server has the new one. Other servers get the new address. Where should the admin look first?
- Copies from the encoding farm to the storage server have become slow, and the team suspects the network, not the disks. Which tool measures the throughput between the two hosts?