dnsmasq: 127.0.0.1에 대한 청취 소켓을 생성할 수 없습니다: 주소가 이미 사용 중입니다.

를 통해 dnsmasq설정 하려고 합니다.AWS Ubuntu 20.4이것협회.

하지만 오류를 해결할 수 없는 것 같습니다.dnsmasq: failed to create listening socket for port 53: Address already in use

나는 이 게시물의 단계를 시도했지만 성공하지 못했습니다.

1. https://askubuntu.com/questions/191226/dnsmasq-failed-to-create-listening-socket-for-port-53-address-already-in-use

2. https://discourse.pi-hole.net/t/dnsmasq-failed-to-create-listening-socket-for-port-53-permission-denied/16436

3. https://jonamiki.com/2020/01/29/dnsmasq-failed-to-create-listening-socket-for-port-53-address-already-in-use/

4. https://askubuntu.com/questions/1062651/dnsmasq-failed-to-create-listening-socket-for-port-53-address-already-in-use

눈에 띄는 영향을 미친 유일한 것은 sudo systemctl stop systemd-resolved.service오류 메시지를 다음에서 dnsmasq: failed to create listening socket for port 53: Address already in use변경한 것입니다.dnsmasq: failed to create listening socket for 127.0.0.1: Address already in use

53에서 실제로 실행되는 것이 무엇인지 잘 모르겠습니다. 실행하면 sudo ss -alpn sport = 53 src 127.0.0.1출력이 없고 분명히 포트 53에서 수신 대기 중인 것이 없기 때문입니다. 그러나 실행하면 sudo ss -lp "sport = :domain"출력은 다음과 같습니다.

Netid       State        Recv-Q       Send-Q             Local Address:Port               Peer Address:Port      Process                                  
udp         UNCONN       0            0                        0.0.0.0:domain                  0.0.0.0:*          users:(("dnsmasq",pid=2059,fd=4))       
udp         UNCONN       0            0                           [::]:domain                     [::]:*          users:(("dnsmasq",pid=2059,fd=6))       
tcp         LISTEN       0            32                       0.0.0.0:domain                  0.0.0.0:*          users:(("dnsmasq",pid=2059,fd=5))       
tcp         LISTEN       0            32                          [::]:domain                     [::]:*          users:(("dnsmasq",pid=2059,fd=7))    

내 /etc/dnsmasq.conf모습:

no-resolv
server=8.8.8.8#53
listen-address=127.0.0.1
cache-size=50

bind-interfaces이것을 활성화하려고 시도했지만 /etc/dnsmasq.conf아무런 차이가 없었습니다.

또한 systemd 해결 서비스를 중지하고 재부팅 시 자동으로 시작되도록 마스크하려고 했습니다.

sudo systemctl stop systemd-resolved
sudo systemctl disable systemd-resolved
sudo systemctl mask systemd-resolved

다시 말하지만, 차이는 없습니다.

반품 확인 sudo systemctl dnsmasq.service:

Unknown operation dnsmasq.service.
ubuntu@ip-172-31-27-116:~$ sudo systemctl status dnsmasq.service
● dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
     Loaded: loaded (/lib/systemd/system/dnsmasq.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sun 2022-02-13 19:55:05 UTC; 36s ago
    Process: 3381 ExecStartPre=/usr/sbin/dnsmasq --test (code=exited, status=0/SUCCESS)
    Process: 3382 ExecStart=/etc/init.d/dnsmasq systemd-exec (code=exited, status=2)

Feb 13 19:55:04 ip-172-31-27-116 systemd[1]: Starting dnsmasq - A lightweight DHCP and caching DNS server...
Feb 13 19:55:05 ip-172-31-27-116 dnsmasq[3381]: dnsmasq: syntax check OK.
Feb 13 19:55:05 ip-172-31-27-116 dnsmasq[3382]: dnsmasq: failed to create listening socket for 127.0.0.1: Address already in use
Feb 13 19:55:05 ip-172-31-27-116 dnsmasq[3382]: failed to create listening socket for 127.0.0.1: Address already in use
Feb 13 19:55:05 ip-172-31-27-116 dnsmasq[3382]: FAILED to start up
Feb 13 19:55:05 ip-172-31-27-116 systemd[1]: dnsmasq.service: Control process exited, code=exited, status=2/INVALIDARGUMENT
Feb 13 19:55:05 ip-172-31-27-116 systemd[1]: dnsmasq.service: Failed with result 'exit-code'.
Feb 13 19:55:05 ip-172-31-27-116 systemd[1]: Failed to start dnsmasq - A lightweight DHCP and caching DNS server.