![如何设置 systemd-resolve DNS 服务器?](https://linux22.com/image/12862/%E5%A6%82%E4%BD%95%E8%AE%BE%E7%BD%AE%20systemd-resolve%20DNS%20%E6%9C%8D%E5%8A%A1%E5%99%A8%EF%BC%9F.png)
Ubuntu 18.04 不再尊重本地配置。由于我无法再让 DHCP 服务器通告 DNS 服务器,因此我想手动设置客户端(LXD 容器)。我尝试编辑文件/etc/systemd/resolved.conf
以更改行DNS=
,查看文件内容:
# cat /etc/systemd/resolved.conf
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Entries in this file show the compile time defaults.
# You can change settings by editing this file.
# Defaults can be restored by simply deleting this file.
#
# See resolved.conf(5) for details
[Resolve]
DNS=192.168.1.11 192.168.1.29
#FallbackDNS=
#Domains=
#LLMNR=no
#MulticastDNS=no
#DNSSEC=no
#Cache=yes
#DNSStubListener=yes
然而,我仍然是一个不需要的 DNS 服务器fe80::5ee2:8cff:fe99:f106
# systemd-resolve --status
Global
DNS Servers: 192.168.1.11
192.168.1.29
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
31.172.in-addr.arpa
corp
d.f.ip6.arpa
home
internal
intranet
lan
local
private
test
Link 129 (eth0)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 192.168.1.11
192.168.1.29
fe80::5ee2:8cff:fe99:f106
DNS Domain: forumanalogue.fr
因此 DNS 查询返回错误结果,导致服务器环境无法正常工作。
# dig toot.forumanalogue.fr
; <<>> DiG 9.11.3-1ubuntu1.11-Ubuntu <<>> toot.forumanalogue.fr
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62248
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;toot.forumanalogue.fr. IN A
;; ANSWER SECTION:
toot.forumanalogue.fr. 300 IN A 151.127.52.79
;; Query time: 20 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Thu Jan 02 14:09:41 UTC 2020
;; MSG SIZE rcvd: 66
dig
返回公共 IP 地址。预期结果是
# dig toot.forumanalogue.fr @192.168.1.11
; <<>> DiG 9.11.3-1ubuntu1.11-Ubuntu <<>> toot.forumanalogue.fr @192.168.1.11
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12877
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: a875a4c08c601052bf3b129e5e0dfb08254c48cf47944e9f (good)
;; QUESTION SECTION:
;toot.forumanalogue.fr. IN A
;; ANSWER SECTION:
toot.forumanalogue.fr. 604800 IN A 192.168.1.39
;; AUTHORITY SECTION:
forumanalogue.fr. 604800 IN NS ns2.forumanalogue.fr.
forumanalogue.fr. 604800 IN NS ns.forumanalogue.fr.
;; ADDITIONAL SECTION:
ns.forumanalogue.fr. 604800 IN A 192.168.1.11
ns2.forumanalogue.fr. 604800 IN A 192.168.1.29
;; Query time: 0 msec
;; SERVER: 192.168.1.11#53(192.168.1.11)
;; WHEN: Thu Jan 02 14:15:36 UTC 2020
;; MSG SIZE rcvd: 161