【发布时间】：2020-11-11 11:15:00
【问题描述】：
当尝试（重新）启动 httpd 服务时，我收到以下错误：
** (pkttyagent:2574): WARNING **: 01:33:55.345: Unable to register authentication agent:
GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject Error registering authentication agent:
GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject (polkit-error-quark, 0) Job for httpd.service failed because the control process exited with error code. See "systemctl status httpd.service" and "journalctl -xe" for details.
然后
systemctl status httpd.service
没有说明问题：
httpd.service - Web server Apache
Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Wed 2020-07-22 01:33:55 BST; 26min ago
Process: 2578 ExecStart=/usr/local/apache/bin/apachectl start (code=exited, status=1/FAILURE)
Jul 22 01:33:55 server... systemd[1]: Starting Web server Apache...
Jul 22 01:33:55 server... systemd[1]: httpd.service: control process exited, code=exited status=1
Jul 22 01:33:55 server... systemd[1]: Failed to start Web server Apache.
Jul 22 01:33:55 server... systemd[1]: Unit httpd.service entered failed state.
Jul 22 01:33:55 server... systemd[1]: httpd.service failed.
这可能是什么原因造成的？我应该去哪里调试？
【问题讨论】：
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/usr/local/apache/bin/httpd -t命令输出。 -
/usr/local/apache/bin/httpd -t显示Syntax OK -
使用
/usr/local/apache/bin/httpd -k start启动 Apache 并告诉我结果。 -
/usr/local/apache/bin/httpd -k start没有错误报告 -
您使用
ps -ef | grep httpd检查进程是否启动。如果进程成功启动，则使用/usr/local/apache/bin/httpd -k start停止进程并开始使用systemctl start httpd