아치 리눅스 문제 해결

Arch를 실행하는 Rasberry Pi가 있는데 이상한 해상도 동작이 발생하고 있습니다. 간단히 말해서, 호스트 이름은 확인할 dig수 있지만 ,,,, 확인할 수 없습니다. 호스트를 추가하면 해당 호스트에 대해 모든 것이 잘 작동합니다.nslookupcurlwgetpacman/etc/hosts

다음은 몇 가지 문제 해결 결과입니다.

1. resolv.conf존재하며 읽을 수 있습니다:

   $ ls -l /etc/resolv.conf
   -rw-r--r-- 1 root root 19 Apr 28 10:45 /etc/resolv.conf
   

2. 네임서버가 있습니다:

   $ cat /etc/resolv.conf
   nameserver 8.8.8.8
   

3. nslookup일하다:

   $ nslookup google.com
   Server:         8.8.8.8
   Address:        8.8.8.8#53
   
   Non-authoritative answer:
   Name:   google.com
   Address: 92.87.11.30
   Name:   google.com
   Address: 92.87.11.54
   Name:   google.com
   Address: 92.87.11.49
   Name:   google.com
   Address: 92.87.11.45
   ...
   

4. dig일하다:

   $ dig google.com
   
   ; <<>> DiG 9.11.0-P3 <<>> google.com
   ;; global options: +cmd
   ;; Got answer:
   ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20686
   ;; flags: qr rd ra; QUERY: 1, ANSWER: 16, AUTHORITY: 0, ADDITIONAL: 1
   
   ;; OPT PSEUDOSECTION:
   ; EDNS: version: 0, flags:; udp: 512
   ;; QUESTION SECTION:
   ;google.com.                    IN      A
   
   ;; ANSWER SECTION:
   google.com.             299     IN      A       92.87.175.49
   google.com.             299     IN      A       92.87.175.50
   google.com.             299     IN      A       92.87.175.48
   google.com.             299     IN      A       92.87.175.44
   google.com.             299     IN      A       92.87.175.42
   google.com.             299     IN      A       92.87.175.41
   google.com.             299     IN      A       92.87.175.51
   google.com.             299     IN      A       92.87.175.36
   google.com.             299     IN      A       92.87.175.39
   google.com.             299     IN      A       92.87.175.45
   google.com.             299     IN      A       92.87.175.37
   google.com.             299     IN      A       92.87.175.40
   google.com.             299     IN      A       92.87.175.38
   google.com.             299     IN      A       92.87.175.47
   google.com.             299     IN      A       92.87.175.43
   google.com.             299     IN      A       92.87.175.46
   
   ;; Query time: 40 msec
   ;; SERVER: 8.8.8.8#53(8.8.8.8)
   ;; WHEN: Fri Apr 28 11:37:32 EEST 2017
   ;; MSG SIZE  rcvd: 295
   

5. ping다음 IP 중 하나를 사용할 수 있습니다 .

   $ ping 92.87.175.49
   PING 92.87.175.49 (92.87.175.49) 56(84) bytes of data.
   64 bytes from 92.87.175.49: icmp_seq=1 ttl=54 time=3.75 ms
   64 bytes from 92.87.175.49: icmp_seq=2 ttl=54 time=3.71 ms
   
   --- 92.87.175.49 ping statistics ---
   2 packets transmitted, 2 received, 0% packet loss, time 1001ms
   rtt min/avg/max/mdev = 3.711/3.734/3.758/0.065 ms
   

6. wget실패하다:

   $ wget https://google.com
   --2017-04-28 11:39:31--  https://google.com/
   Loaded CA certificate '/etc/ssl/certs/ca-certificates.crt'
   Resolving google.com... failed: Name or service not known.
   wget: unable to resolve host address 'google.com'
   

7. curl실패하다:

   $ curl https://google.com
   curl: (6) Could not resolve host: google.com
   

내가 놓친 게 무엇입니까? ! ...

편집하다:

$ cat /etc/hosts
#
# /etc/hosts: static lookup table for host names
#

#<ip-address>   <hostname.domain.org>   <hostname>
127.0.0.1       localhost.localdomain   localhost
::1             localhost.localdomain   localhost

# End of file

$ cat /etc/nsswitch.conf
# Begin /etc/nsswitch.conf

passwd: compat mymachines systemd
group: compat mymachines systemd
shadow: compat

publickey: files

hosts: files mymachines resolve [!UNAVAIL=return] dns myhostname
networks: files

protocols: files
services: files
ethers: files
rpc: files

netgroup: files

# End /etc/nsswitch.conf

그것은 그것과 관련이 있는 것 같습니다 systemd-resolvd. 중지하거나 resolve [!UNAVAIL=return]제거 하면 /etc/nsswitch.conf모든 응용 프로그램에서 구문 분석이 제대로 작동합니다. 다시 시작하거나 /etc/nsswitch.conf그대로 두면 구문 분석은 nslookup& 에 대해서만 작동합니다 dig.