Differences

This shows you the differences between two versions of the page.

--- network:get_network_details [2019/11/30 18:58] – removed peter
+++ network:get_network_details [2020/07/20 13:32] (current) – old revision restored (2016/10/19 09:28) 95.91.74.120
@@ Line 1: / Line 1: @@
+====== Network - Get Network Details ======
+To get the details of your own systems, begin by finding your network interfaces. You can find the interfaces on your machines and the addresses associated with them by typing:
+<code bash>
+ip -4 addr show scope global
+</code>
+returns
+<code>
+: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
+    inet 198.51.100.45/18 brd 45.55.191.255 scope global eth0
+       valid_lft forever preferred_lft forever
+: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
+    inet 192.168.1.5/16 brd 10.132.255.255 scope global eth1
+       valid_lft forever preferred_lft forever
+</code>
+The highlighted output above shows two interfaces (eth0 and eth1) and the addresses assigned to each.
+To find out which of these interfaces is your public interface, type:
+<code bash>
+ip route show | grep default
+</code>
+Returns
+<code>
+default via 111.111.111.111 dev <color red>eth0</color>
+</code>
+The interface shown (eth0 in this example) will be the interface connected to your default gateway.  This is almost certainly your public interface.