Listar interfaces e endereços IP
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FIQUE LIGADO! Visto que as versões mais recentes do Ubuntu Server utilizam o Netplan para gerenciar suas configurações de rede, enquanto o AlmaLinux usa o NetworkManager, os comandos para realizar tarefas semelhantes são diferentes. Tudo depende do que você deseja consultar ou configurar e do seu nível de conhecimento do sistema.
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TAREFAS
- Exibir as configurações de endereçamento IP.
- Listar as interfaces de rede sem informações de IP.
ip addr ou ip a
Exibe endereços IP e interfaces, bem como seus estados, endereços MAC, MTU e Alias.
ubuntu@ubuntu-cloud:/$ ip addr
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 noprefixroute
valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 0c:7e:8f:15:00:00 brd ff:ff:ff:ff:ff:ff
altname enp0s3
inet 10.27.255.95/16 metric 100 brd 10.27.255.255 scope global dynamic ens3
valid_lft 12714sec preferred_lft 12714sec
inet6 fe80::e7e:8fff:fe15:0/64 scope link proto kernel_ll
valid_lft forever preferred_lft forever
ubuntu@ubuntu-cloud:/$
[helioandrade@almalinux ~]$ ip addr
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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 0c:01:72:49:00:00 brd ff:ff:ff:ff:ff:ff
altname enp0s4
altname ens4
inet 10.27.255.94/16 brd 10.27.255.255 scope global dynamic noprefixroute eth0
valid_lft 12747sec preferred_lft 12747sec
inet6 fe80::e01:72ff:fe49:0/64 scope link
valid_lft forever preferred_lft forever
[helioandrade@almalinux ~]$
ip link
Mostra o estado das interfaces de rede, mas sem endereço IP.
ubuntu@ubuntu-cloud:~$ sudo ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 0c:7e:8f:15:00:00 brd ff:ff:ff:ff:ff:ff
altname enp0s3
ubuntu@ubuntu-cloud:~$
[almalinux@almalinux ~]$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 0c:01:72:49:00:00 brd ff:ff:ff:ff:ff:ff
altname enp0s4
altname ens4
[almalinux@almalinux ~]$
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NOTA: Os comandos
ip addr e ip link ambos funcionam tanto no Ubuntu quanto no AlmaLinux.