Linux Labs

Networking / Stage 13 of 14

Restore a service from client to answer

Not running Starting usually ~20 s
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Step 5 of 7 · on a machine · 4 min

The last fault — on two machines

The site is now opened by name, and the request fails again. There are several causes, on different machines.

Follow the stages of the request from the client to the server and check again after each fix. You are done when the request by name from lab-node1 returns the page and lab-web is running.

Exercise · do it

Open the site by name

From lab-node1 the site is opened by name: curl http://portal.lab.test:8080/. The request fails. Find every cause on both machines and remove them. The name for lab-node1 is set in /etc/netns/lab-node1/hosts, which is its /etc/hosts. The lab-web service must keep working.

Sign in and start The machine is available after signing in

Goals · 0 of 2

  • Open the site by name from lab-node1 not done yet
  • Keep the site's service working not done yet

Step goals

0 of 2
  • Open the site by name from lab-node1 — not done yet
  • Keep the site's service working — not done yet
Ubuntu 24.04

Step goals

0 of 2
  • Open the site by name from lab-node1 — not done yet
  • Keep the site's service working — not done yet
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