Debian 中的服务无法启动时如何调试

Question

我有一个新的基于 Debian 不稳定的发行版，上面有 apache2。Apache 本身运行良好。如果我使用

sudo service apache2 start 

它出现了，一切都很顺利。

但它的服务无法每次启动时启动。

这里如何追踪错误呢？

等/log/apache2/error.log：

[Sun Jan 15 14:51:06.685936 2017] [mpm_prefork:notice] [pid 2208] AH00169: caught SIGTERM, shutting down
[Sun Jan 15 14:51:47.842447 2017] [mpm_prefork:notice] [pid 2200] AH00163: Apache/2.4.23 (Debian) configured -- resuming normal operations
[Sun Jan 15 14:51:48.145808 2017] [core:notice] [pid 2200] AH00094: Command line: '/usr/sbin/apache2'
[Sun Jan 15 14:55:25.766188 2017] [mpm_prefork:notice] [pid 3257] AH00163: Apache/2.4.23 (Debian) configured -- resuming normal operations
[Sun Jan 15 14:55:25.801736 2017] [core:notice] [pid 3257] AH00094: Command line: '/usr/sbin/apache2'
[Sun Jan 15 16:08:15.031691 2017] [mpm_prefork:notice] [pid 2316] AH00163: Apache/2.4.23 (Debian) configured -- resuming normal operations
[Sun Jan 15 16:08:15.043756 2017] [core:notice] [pid 2316] AH00094: Command line: '/usr/sbin/apache2'
[Mon Jan 16 11:26:33.007967 2017] [mpm_prefork:notice] [pid 2278] AH00163: Apache/2.4.23 (Debian) configured -- resuming normal operations
[Mon Jan 16 11:26:33.013972 2017] [core:notice] [pid 2278] AH00094: Command line: '/usr/sbin/apache2'
 [Tue Jan 17 08:07:35.149382 2017] [mpm_prefork:notice] [pid 3517] AH00163: Apache/2.4.23 (Debian) configured -- resuming normal operations
 [Tue Jan 17 08:07:35.152372 2017] [core:notice] [pid 3517] AH00094: Command line: '/usr/sbin/apache2'

还有哪些其他文件有助于调试服务故障？

Answer 1

系统按设计工作，没有出现任何故障。听起来您可能只需要启用该服务，以便它在启动时启动。

systemctl enable service

您可能需要花一些时间阅读 systemctl/systemd 文档。