Welcome to your first lab! Remember, these lab documents are designed to accompany the corresponding videos in the Linux Networking - Basics and Beyond video course.
Note: This is the only lab for this lesson.
In the console (or terminal) type the ip a command and view the results. Here's an example on a Debian server:
root@deb51:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 52:54:00:f0:2b:b4 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.51/24 brd 10.0.2.255 scope global enp1s0
valid_lft forever preferred_lft forever
inet6 fe80::5054:ff:fef0:2bb4/64 scope link
valid_lft forever preferred_lft forever
3: enp7s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:54:00:0a:2a:c9 brd ff:ff:ff:ff:ff:ff
This shows two interfaces:
- lo, which is the local loopback, something that is found by default on every system that runs TCP/IP. "inet" shows the IPv4 address, which for lo is 127.0.0.1.
- enp1s0, which is the main network interface, used to access other systems and the Internet. The IPv4 address is 10.0.2.51.
Note: For help with the ip command type
ip --help, and for more in-depth information, see the manual pageman ip.
That was an easy lab, but don't worry, we're going to raise the complexity level soon! Great work so far!
-
Instructor Network Map with IP Scheme
