In linux, how does one check which httpd. conf apache uses?

If the httpd command uses the-f option, you can directly obtain the configuration file directory. If the httpd command does not use the-f option, for example, Step 1: Find the apache startup command:

ps -ef|grep httpdroot     10575   1  0 19:45 ?    00:00:03 /usr/sbin/httpd -k startmyuser   15356   2982   0   Jan19   ?   00:00:00   /home/apache/bin/httpd -f /home/apache/conf/httpd.conf -k start

If the httpd command uses the-f option, you can directly obtain the configuration file directory.

If the httpd command does not use the-f option, for example:

ps -ef|grep httpdroot     10575     1  0 19:45 ?        00:00:03 /usr/sbin/httpd -k startapache   10577 10575  0 19:45 ?        00:00:00 /usr/sbin/httpd -k startapache   10583 10575  0 19:45 ?        00:00:00 /usr/sbin/httpd -k startapache   10584 10575  0 19:45 ?        00:00:00 /usr/sbin/httpd -k startapache   10587 10575  0 19:45 ?        00:00:00 /usr/sbin/httpd -k startapache   10590 10575  0 19:45 ?        00:00:00 /usr/sbin/httpd -k startapache   10591 10575  0 19:45 ?        00:00:00 /usr/sbin/httpd -k start

Perform step 2.

Step 2: run the httpd-S command to find the path of the configuration file.

/usr/sbin/httpd -SVirtualHost configuration:211.157.8.76:80        is a NameVirtualHostdefault server wap.wapwu.com (/etc/httpd/conf/httpd.conf:1041)port 80 namevhost wap.wapwu.com (/etc/httpd/conf/httpd.conf:1041)port 80 namevhost wapu.wapwu.com (/etc/httpd/conf/httpd.conf:1052)wildcard NameVirtualHosts and _default_ servers:_default_:443          211.157.8.76 (/etc/httpd/conf.d/ssl.conf:88)Syntax OK

From the log information output by apache, you can see that the configuration file is in the/etc/httpd/conf/directory.