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: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether fa:16:3e:21:1e:4e brd ff:ff:ff:ff:ff:ff
    altname enp0s3
    inet 162.253.55.123/24 metric 100 brd 162.253.55.255 scope global dynamic ens3
       valid_lft 86011sec preferred_lft 86011sec
    inet6 2604:e100:1:0:f816:3eff:fe21:1e4e/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 2591995sec preferred_lft 604795sec