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Ubuntu 18.04（netplan）下局域网上的固定IP地址

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Ubuntu 18.04（netplan）下局域网上的固定IP地址

我刚刚首次安装 Ubuntu，我想为我的电脑设置一个固定 IP 地址，作为通过 ssh 从外部连接的第一步。我在路由器中找不到将 IP 地址与 MAC 地址关联的菜单，因此我改为/etc/netplan我看到一个名为的文件01-网络管理器-全部.yaml其中包含：

# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

我将其附加到包含以下内容：

# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager
  wifis:
    wlp5s0:
      addresses: [192.168.0.100/24]
      dhcp4: no
      gateway4: 192.168.0.1
      access-points:
        sparrow:
          password: my password

接下来我运行：

ian@sparrow:~$ sudo netplan --debug apply
** (generate:2459): DEBUG: 08:03:58.881: Processing input file //etc/netplan/01-network-manager-all.yaml..
** (generate:2459): DEBUG: 08:03:58.881: starting new processing pass
** (generate:2459): DEBUG: 08:03:58.881: wlp5s0: adding wifi AP 'sparrow'
** (generate:2459): DEBUG: 08:03:58.881: wlp5s0: setting default backend to 2
** (generate:2459): DEBUG: 08:03:58.882: Generating output files..
** (generate:2459): DEBUG: 08:03:58.882: networkd: definition wlp5s0 is not for us (backend 2)
DEBUG:no netplan generated networkd configuration exists
DEBUG:netplan generated NM configuration exists, restarting NM
DEBUG:replug enp4s0: unbinding 0000:04:00.0 from /sys/bus/pci/drivers/r8169
DEBUG:replug enp4s0: rebinding 0000:04:00.0 to /sys/bus/pci/drivers/r8169
DEBUG:replug wlp5s0: unbinding 0000:05:00.0 from /sys/bus/pci/drivers/iwlwifi
DEBUG:replug wlp5s0: rebinding 0000:05:00.0 to /sys/bus/pci/drivers/iwlwifi
DEBUG:device lo operstate is unknown, not replugging
DEBUG:netplan triggering .link rules for lo
ian@sparrow:~$

我不确定该如何理解这个输出。

为了查看发生了什么，我重新启动并运行：

ian@sparrow:/etc/netplan$ ip a
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: enp4s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether b0:6e:bf:0a:9a:5d brd ff:ff:ff:ff:ff:ff
3: wlp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:e1:8c:7f:10:48 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.102/24 brd 192.168.0.255 scope global dynamic noprefixroute wlp5s0
       valid_lft 86003sec preferred_lft 86003sec
    inet6 fe80::1d31:c36:616f:422c/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
ian@sparrow:/etc/netplan$

这表明我让 Ubuntu 请求 192.168.0.100/24 的尝试失败了。
如何修复我的机器的 LAN IP？

按照如下所述生成 01-networkd.yaml 后，我运行知识产权我得到：

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: enp4s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether b0:6e:bf:0a:9a:5d brd ff:ff:ff:ff:ff:ff
3: wlp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
      link/ether 00:e1:8c:7f:10:48 brd ff:ff:ff:ff:ff:ff
      inet 192.168.0.102/24 brd 192.168.0.255 scope global dynamic noprefixroute wlp5s0
         valid_lft 86003sec preferred_lft 86003sec
      inet6 fe80::1d31:c36:616f:422c/64 scope link noprefixroute 
         valid_lft forever preferred_lft forever
ian@sparrow:/etc/netplan$

更正：输出自sudo netplan--debug 生成是：

Processing input file //etc/netplan/01-networkd.yaml..
starting new processing pass
wlp5s0: adding wifi AP 'sparrow
enp4s0: setting default backend to 1
wlp5s0: setting default backend to 1
Generating output files..
NetworkManager: definition enp4s0 is not for us (backend 1)
wlp5s0: Creating wpa_supplicant configuration file run/netplan/wpa-wlp5s0.conf
Creating wpa_supplicant service enablement link /run/systemd/system/multi-user.target.wants/[email protected]
NetworkManager: definition wlp5s0 is not for us (backend 1)

答案1

如果必须使用Netplan...

消除/etc/netplan/01-network-manager-all.yaml

创造/etc/netplan/01-networkd.yaml...

network:
  version: 2
  renderer: networkd
  ethernets:
    enp4s0:
      dhcp4: true
      optional: true
  wifis:
    wlp5s0:
      addresses: [192.168.0.100/24]
      gateway4: 192.168.0.1
      nameservers:
        addresses: [192.168.0.1, 8.8.8.8]
      access-points:
        "sparrow":
          password: "**********"

sudo netplan --debug generate

sudo netplan apply

reboot

如果您决定继续使用 NetworkManager...

删除所有不必要的 .yaml 文件/etc/netplan

创造/etc/netplan/01-network-manager-all.yaml...

# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

sudo netplan --debug generate

sudo netplan apply

reboot

连接到所需的无线网络。

断开无线网络。

在 ( 中编辑这些设置18.04.1) 无线配置文件...

在此处输入图片描述

更新＃1：

  • 添加了 enp4s0 LAN 连接的代码
  • 添加重启
  • 添加了有关使用 NetworkManager 的信息

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