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IT - Linux: Network set-up

 Additional IP address

  • Fedora 36 / 37 / 38 / 39
    • Option 1:

      sudo nmcli con mod <interface-name> +ipv4.addresses "<ip-address>/<mask>"

      $ sudo nmcli con mod enp4s0f0 +ipv4.addresses "192.168.0.15/24"
      $ sudo nmcli con mod enp4s0f0 ipv4.method manual
      $ sudo nmcli con mod enp4s0f0 ipv4.dns "1.1.1.1 8.8.8.8 8.8.4.4"
    • Option 2:

      vi /etc/NetworkManager/system-connections/<interface-name>.nmconnection and update entry under [ipv4]

      [ipv4]
      address1=ip-address/bit-mask[,default-gateway]
      dns=ip-address;[ip-address;[ip-address;]]
      method=manual

      For example:

      $ nmcli
      enp3s0f0: connected to enp3s0f0
    •         "Broadcom and subsidiaries NetXtreme BCM57766"
              ethernet (tg3), 38:C9:86:30:35:8C, hw, mtu 1500
              ip4 default, ip6 default
              inet4 192.168.0.208/24
              route4 192.168.0.0/24 metric 100
              route4 192.168.0.0/24 metric 100
              inet6 2a02:8109:aa3f:aa58::b1fe/128
              inet6 fe80::3ac9:86ff:fe30:358c/64
              route6 fe80::/64 metric 1024
              route6 2a02:8109:aa3f:aa58::b1fe/128 metric 100
              route6 default via fe80::4e12:65ff:fe0b:ad86 metric 100

      lo: unmanaged
              "lo"
              loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536

      DNS configuration:
              servers: 192.168.0.1
              interface: enp3s0f0

              servers: 2a02:8109:aa3f:aa58:4e12:65ff:fe0b:ad86
              interface: enp3s0f0
      ...
      $ sudo vi /etc/NetworkManager/system-connections/enp3s0f0.nmconnection

      • [ipv4]
      method=manual
      address1=192.168.0.16/24,192.168.0.1
      dns=8.8.8.8;8.8.4.4;1.1.1.1;

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