ubuntu18相關命令

*修改ipconfig

#vi /etc/netplan/50-cloud-init.yaml
(1)DHCP

network:

    ethernets:

        enp0s3:

            addresses: []

            dhcp4: true

    version: 2

(2)固定IP

network:

    ethernets:

        enp0s3:

            addresses: [192.168.0.10/24]

            gateway4: 192.168.0.1

            nameservers:

              addresses: [8.8.8.8,8.8.4.4]

            dhcp4: no

    version: 2

(確定前測試)
#netplan try
(確定修改)
#netplan apply

*加上rc.local

1.建立rc-local.service文件
#vi /etc/systemd/system/rc-local.service

[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local

[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99

[Install]
WantedBy=multi-user.target

#將要執行的命令寫入 /etc/rc.local
# chmod +x /etc/rc.local
# systemctl start rc-local.service