"Sudo: unable to resolve host"의 두 판 사이의 차이

2018년 4월 16일 (월) 14:02 기준 최신판

sudo: unable to resolve host

1 문제상황[ | ]

ubuntu@ip-172-31-46-180:~$ sudo true
ubuntu@ip-172-31-46-180:~$ sudo hostnamectl set-hostname myserver1
ubuntu@ip-172-31-46-180:~$ sudo true
sudo: unable to resolve host myserver1
ubuntu@ip-172-31-46-180:~$

2 조치[ | ]

/etc/hosts 파일에 새 호스트명을 추가해준다.

ubuntu@ip-172-31-46-180:~$ sudo vi /etc/hosts

127.0.0.1 localhost
127.0.1.1 myserver1

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

ubuntu@ip-172-31-46-180:~$ sudo true
ubuntu@ip-172-31-46-180:~$

3 같이 보기[ | ]

4 참고[ | ]

https://askubuntu.com/questions/59458/error-message-sudo-unable-to-resolve-host-user

@@ 1번째 줄: / 1번째 줄: @@
+{{소문자}}
+;<nowiki>sudo: unable to resolve host</nowiki>
 ==문제상황==
 <source lang='console'>
 ubuntu@ip-172-31-46-180:~$ sudo true
-ubuntu@ip-172-31-46-180:~$ sudo hostnamectl set-hostname example
+ubuntu@ip-172-31-46-180:~$ sudo hostnamectl set-hostname myserver1
 ubuntu@ip-172-31-46-180:~$ sudo true
-sudo: unable to resolve host example
+sudo: unable to resolve host myserver1
 ubuntu@ip-172-31-46-180:~$
 </source>
 ==조치==
+* /etc/hosts 파일에 새 호스트명을 추가해준다.
 <source lang='console'>
-ubuntu@ip-172-31-46-180:~$ cat /etc/hosts | grep $(hostname)
+ubuntu@ip-172-31-46-180:~$ sudo vi /etc/hosts
-ubuntu@ip-172-31-46-180:~$ echo $(hostname -I | cut -d\  -f1) $(hostname) | sudo tee -a /etc/hosts
+</source>
-sudo: unable to resolve host example
+<source lang='ini' highlight='2'>
-.31.46.180 example
+.0.0.1 localhost
-ubuntu@ip-172-31-46-180:~$ cat /etc/hosts | grep $(hostname)
+.0.1.1 myserver1
-.31.46.180 example
+# The following lines are desirable for IPv6 capable hosts
+::1 ip6-localhost ip6-loopback
+fe00::0 ip6-localnet
+ff00::0 ip6-mcastprefix
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+ff02::3 ip6-allhosts
 </source>
 <source lang='console'>
@@ 23번째 줄: / 34번째 줄: @@
 ==같이 보기==
+* [[hostnamectl set-hostname]]
 * [[리눅스 hostname]]
 * [[hostname -I]]