在 CentOS 系統中,使用 ifconfig 命令可以查看所有網絡接口的信息。要查看所有網絡接口,請在終端中輸入以下命令:
ifconfig -a
這將顯示系統中所有活動和非活動的網絡接口及其相關信息。輸出結果類似于以下內容:
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.100 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::a00:27ff:fe4e:66a1 prefixlen 64 scopeid 0x20<link>
ether 08:00:27:4e:66:a1 txqueuelen 1000 (Ethernet)
RX packets 1003456 bytes 123456789 (117.7 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 987654 bytes 987654321 (941.5 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 12345 bytes 123456 (120.6 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12345 bytes 123456 (120.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
在這個例子中,eth0 和 lo 是兩個網絡接口。eth0 是一個以太網接口,而 lo 是一個本地回環接口。