Netplan DNS灾难

Question

我在努力让网络计划起作用。(我还以为我还想要resolv.conf --这确实修复了DNS，但在重新启动时会重新编写。)一切似乎都是正确的，但我不能平。

$ sudo netplan --debug apply
** (generate:14256): DEBUG: 00:38:22.887: Processing input file /etc/netplan/50-cloud-init.yaml..
** (generate:14256): DEBUG: 00:38:22.888: starting new processing pass
** (generate:14256): DEBUG: 00:38:22.888: We have some netdefs, pass them through a final round of validation
** (generate:14256): DEBUG: 00:38:22.888: ens160: setting default backend to 1
** (generate:14256): DEBUG: 00:38:22.888: Configuration is valid
** (generate:14256): DEBUG: 00:38:22.888: Generating output files..
** (generate:14256): DEBUG: 00:38:22.888: NetworkManager: definition ens160 is not for us (backend 1)
DEBUG:netplan generated networkd configuration changed, restarting networkd
DEBUG:no netplan generated NM configuration exists
DEBUG:ens160 not found in {}
DEBUG:Merged config:
network:
  bonds: {}
  bridges: {}
  ethernets:
    ens160:
      critical: true
      dhcp4: true
      dhcp4-overrides:
        use-dns: false
      dhcp6: true
      dhcp6-overrides:
        use-dns: false
      ipv6-privacy: true
      nameservers:
        addresses:
        - 10.10.11.200
        - 1.1.1.1
        search:
        - home
  vlans: {}
  wifis: {}

DEBUG:Skipping non-physical interface: lo
DEBUG:device ens160 operstate is up, not changing
DEBUG:Skipping non-physical interface: docker0
DEBUG:Skipping non-physical interface: hassio
DEBUG:Skipping non-physical interface: vethecdde1c
DEBUG:{}
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for ens160
DEBUG:netplan triggering .link rules for docker0
DEBUG:netplan triggering .link rules for hassio
DEBUG:netplan triggering .link rules for vethecdde1c
$ ping google.com
ping: google.com: Temporary failure in name resolution

根据要求编辑。

我以为我使用的是网络计划，因为它是安装的。

/etc/netplan/50-cloud-init.yaml我没有创建这个文件，它就在那里。

network:
    ethernets:
        ens160:
            critical: true
            dhcp4: true
            dhcp4-overrides:
                use-dns: false
            dhcp6: true
            dhcp6-overrides:
                use-dns: false
            ipv6-privacy: true
            nameservers:
                search: [home]
                addresses: [10.10.11.200, 1.1.1.1]

    version: 2

当我尝试这两个命令时，都会出现错误。

$ sudo systemd-resolve --status
Failed to get global data: Unit dbus-org.freedesktop.resolve1.service not found.
$ sudo resolvectl --status
sudo: resolvectl: command not found

Answer 1

你想要的是DnsmasqNetplan只允许配置回退DNS，而不允许配置域DNS。

准备安装

• 删除“systemd解决”
  • sudo systemctl disable systemd-resolved
  • sudo systemctl stop systemd-resolved

• 删除链接resolv.conf
  • 确保它是一个链接(将指向如下所示：.systemd/ sure /stub-Surv.conf)：
  • sudo ls -lh /etc/resolv.conf
  • 删除链接：
  • sudo rm /etc/resolv.conf

• 添加临时DNS
  • sudo echo "nameserver 8.8.8.8" > /etc/resolv.conf

• 安装Dnsmasq
  • sudo apt update
  • sudo apt install dnsmasq

具有dnsmasq.d/lxd的

问题当dnsmasq最初启动时，您可能会得到此错误： dnsmasq:无法访问/etc/dnsmasq.d/lxd:没有这样的文件或目录 要解决这个问题，只需删除符号链接¯_(ツ)_/ sudo rm /etc/dnsmasq.d/lxd 并重新启动： service dnsmasq restart service dnsmasq status

配置DNSmasq

编辑/etc/dnsmasq.conf。

搜索并取消对此选项的注释：

• 域-需要
• 假普里夫
• 严序
• 非解析

添加域DNS服务器，例如：

server=/mycompany.com.pl/192.168.0.123
server=/some.vlan/10.234.0.123

增加通用服务器，例如：

server=1.1.1.1
server=8.8.4.4

完成后重新启动：

service dnsmasq restart
service dnsmasq status

请注意，状态将显示实际使用的DNS服务器(using nameserver ...)。

最终步骤

• 将DNS设置为本地：
  • 在解析中添加本地DNS：
    • sudo echo "nameserver 127.0.0.1" > /etc/resolv.conf

- Update `/etc/netplan/` yaml file too.

• 使用dig (或ping)进行测试。
  • (寻找;; ANSWER SECTION:)
  • dig app01.some.vlan
  • dig server.mycompany.com.pl

• 在引导上启用运行：
  • systemctl enable dnsmasq