Tracy_Baker
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More incorrect networking instruction: RHEL 8, RH124, Chapter 12, Section 7

Here is more networking content that is just plain wrong -- for RHEL 8

(It is correct for RHEL 7: Is copy 'n' pasting going on without checking to see if something is correct or not -- before it is to be taught to students?)

This:
127a.JPG

Gives this:
127b.JPG

This:
127c.JPG

Gives this:
127d.JPG

nmcli con add or nmcli con mod -- it doesn't matter, the sytax in the course material is incorrect. nmcli for RHEL 8 no longer accepts the "ip/prefix gateway" syntax.

These are the correct ways, using ipv4.gateway and ipv6.gateway:
127e.JPG127f.JPG

Proof the gateways were added:
127g.JPG

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Look at the first graphic again:
127a.JPG

It says that "IPv4 address, network prefix, and default gateway" ... can have "directives end with 1, 2, 3 and so on."

Partially true. This is true for the IPV4 (or IPv6) address and prefix(es). It is not true gor the default gateway -- there will only be one:

Here, trying to add a second gateway for IPv4 and IPv6 (and the command returns no error):
127h.JPG

You can see that even though it took my command, it did not do what was expected (remember, I did a +ipv4.gateway) - it did not add the gateways, it replaced the old gateways:
127i.JPG

Program Lead at Arizona's first Red Hat Academy, est. 2005
Estrella Mountain Community College
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