Liunx7启动postfix报错Job for postfix.service failed because the control process exited with error code.

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CentOS7.X 启动 postfix

[root@ ~]# systemctl start postfix
Job for postfix.service failed because the control process exited with error code. See "systemctl status postfix.service" and "journalctl -xe" for details.

debug 的过程（systemctl status postfix）：中发现具体的问题是：parameter inet_interfaces: no local interface found for ::1

[root@izbp1g7wauly0hkrzcv7b4z ~]# systemctl status postfix
● postfix.service - Postfix Mail Transport Agent
   Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Mon 2020-03-09 18:55:23 CST; 41min ago

Mar 09 18:55:21 izbp1g7wauly0hkrzcv7b4z systemd[1]: Starting Postfix Mail Transport Agent...
Mar 09 18:55:21 izbp1g7wauly0hkrzcv7b4z aliasesdb[9455]: /usr/sbin/postconf: fatal: parameter inet_interfaces: no local interface found for ::1
Mar 09 18:55:22 izbp1g7wauly0hkrzcv7b4z aliasesdb[9455]: newaliases: fatal: parameter inet_interfaces: no local interface found for ::1
Mar 09 18:55:22 izbp1g7wauly0hkrzcv7b4z postfix[9463]: fatal: parameter inet_interfaces: no local interface found for ::1
Mar 09 18:55:23 izbp1g7wauly0hkrzcv7b4z systemd[1]: postfix.service: control process exited, code=exited status=1
Mar 09 18:55:23 izbp1g7wauly0hkrzcv7b4z systemd[1]: Failed to start Postfix Mail Transport Agent.
Mar 09 18:55:23 izbp1g7wauly0hkrzcv7b4z systemd[1]: Unit postfix.service entered failed state.
Mar 09 18:55:23 izbp1g7wauly0hkrzcv7b4z systemd[1]: postfix.service failed.

解决方法：

修改 /etc/postfix/main.cf 的设置（搜索并修改他们的值）

inet_protocols = ipv4
inet_interfaces = all

完美启动

[root@izbp1g7wauly0hkrzcv7b4z ~]# systemctl start postfix
[root@izbp1g7wauly0hkrzcv7b4z ~]# systemctl status postfix
● postfix.service - Postfix Mail Transport Agent
   Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2020-03-09 19:38:55 CST; 2min 32s ago
  Process: 13295 ExecStart=/usr/sbin/postfix start (code=exited, status=0/SUCCESS)
  Process: 13291 ExecStartPre=/usr/libexec/postfix/chroot-update (code=exited, status=0/SUCCESS)
  Process: 13288 ExecStartPre=/usr/libexec/postfix/aliasesdb (code=exited, status=0/SUCCESS)
 Main PID: 13368 (master)
   CGroup: /system.slice/postfix.service
           ├─13368 /usr/libexec/postfix/master -w
           ├─13369 pickup -l -t unix -u
           └─13370 qmgr -l -t unix -u

Mar 09 19:38:54 izbp1g7wauly0hkrzcv7b4z systemd[1]: Starting Postfix Mail Transport Agent...
Mar 09 19:38:55 izbp1g7wauly0hkrzcv7b4z postfix/master[13368]: daemon started -- version 2.10.1, configuration /etc/postfix
Mar 09 19:38:55 izbp1g7wauly0hkrzcv7b4z systemd[1]: Started Postfix Mail Transport Agent.