Initial Settings : Network Settings2024/04/26 |
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Change to static IP addres if you use Ubuntu as a server.
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| [1] | The interface name [enp1s0] is different on each environment, replace it to your own one. |
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# rename to disable default setting root@localhost:~# mv /etc/netplan/50-cloud-init.yaml /etc/netplan/50-cloud-init.yaml.org
root@localhost:~#
vi /etc/netplan/01-netcfg.yaml # create new
network:
ethernets:
# interface name
enp1s0:
dhcp4: false
# IP address/subnet mask
addresses: [10.0.0.30/24]
# default gateway
# [metric] : set priority (specify it if multiple NICs are set)
# lower value is higher priority
routes:
- to: default
via: 10.0.0.1
metric: 100
nameservers:
# name server to bind
addresses: [10.0.0.10,10.0.0.11]
# DNS search base
search: [srv.world,server.education]
dhcp6: false
version: 2
# apply changes root@localhost:~# chmod 600 /etc/netplan/01-netcfg.yaml root@localhost:~# netplan apply
ip address show
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: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 52:54:00:3c:1c:70 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.30/24 brd 10.0.0.255 scope global enp1s0
valid_lft forever preferred_lft forever
inet6 fe80::5054:ff:fe3c:1c70/64 scope link
valid_lft forever preferred_lft forever
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| [2] | If you don't need IPv6, it's possible to disable it like follows. |
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root@localhost:~# echo "net.ipv6.conf.all.disable_ipv6 = 1" >> /etc/sysctl.conf
root@localhost:~#
root@localhost:~# sysctl -p net.ipv6.conf.all.disable_ipv6 = 1 ip address show
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
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 52:54:00:3c:1c:70 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.30/24 brd 10.0.0.255 scope global enp1s0
valid_lft forever preferred_lft forever
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