Firewall Basics 1.2 - guide says eth0 when lab uses ens5

Content Discussion
1

It was a bit tricky to make sure this wasn’t already posted but I haven’t seen this specific one.

image
image1297×839 148 KB

To be completely honest, I don’t know what ens5 even is. I assume a virtualized ethernet port of some kind, but that’s just a guess. All I know is that there was at some point a lab I did prior to this that said to check whether you had eth0 or ens5 and to adjust a thing accordingly.

Why do some labs have eth0 and others ens5? Is this something to be checking for often now?

2

The eth0 designation is older and generically meant “the first network interface”.

The newer designation (ens5) is more descriptive about the NIC interface itself:

ens5 → PCI slot 5
enp0s3 → PCI bus 0, slot 3
eno1 → onboard NIC

We should update this lab guide to reflect this cloud variability.

1 Like