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通过网络接口的 DNS 解析

tag-icon • tag-icon ubuntu dns network-interface routing systemd-resolved
通过网络接口的 DNS 解析

我正在尝试通过特定网络接口路由特定站点 DNS 查询。我有只能通过特定网络接口访问的私人站点，并且我的默认互联网应通过网络接口enp39s0 (eth)路由。wifi

目前这是我的配置

❯ systemd-resolve --status
Global
       Protocols: -LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
resolv.conf mode: foreign
      DNS Domain: corp.private-site.com labcorp.private-site.com private-site.com

Link 2 (enp39s0)
    Current Scopes: DNS
         Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
Current DNS Server: 192.168.2.1
       DNS Servers: 192.168.2.1 10.64.0.1
        DNS Domain: corp.private-site.com labcorp.private-site.com private-site.com

Link 3 (wlo1)
    Current Scopes: DNS
         Protocols: +DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
Current DNS Server: 8.8.4.4
       DNS Servers: 8.8.8.8 8.8.4.4

Link 5 (docker0)
Current Scopes: none
     Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported

配置完成通过nm-connection-editor 在此输入图像描述

DNS 查找查询

❯ dig k8s0292274-node1.lab3.private-site.com

; <<>> DiG 9.16.15-Ubuntu <<>> k8s0292274-node1.lab3.private-site.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52201
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;k8s0292274-node1.lab3.private-site.com. IN A

;; AUTHORITY SECTION:
private-site.com XXXXXXXXXXX

;; Query time: 3 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Tue Apr 05 09:59:21 IST 2022
;; MSG SIZE  rcvd: 134

IP路由列表

10.64.0.1 via 192.168.2.1 dev enp39s0 proto static metric 1

请帮助我路由所有与*.private-site.com应路由相关的查询，enp39s0包括 DNS。

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