mjhjmtu

I built a nagios server with httpd-2.4.67.el7 and the following configuration :

1./etc/httpd/conf.d/ssl.conf

SSLCertificateFile /etc/httpd/conf/ssl.crt/server.crt
SSLCertificateKeyFile /etc/httpd/conf/ssl.key/server.key
SSLCertificateChainFile /etc/httpd/conf/ssl.crt/ca.crt

2./etc/httpd/conf/httpd.conf

LDAPVerifyServerCert off
LDAPTrustedMode SSL
LDAPTrustedGlobalCert CA_DER "/etc/httpd/cert/eCA.cer"
LDAPTrustedGlobalCert CA_DER "/etc/httpd/cert/PublicCA2.cer"

3. /etc/httpd/conf.d/nagios.conf

ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"
<Directory "/usr/local/nagios/sbin">
 SSLRequireSSL
 Options ExecCGI
 AllowOverride AuthConfig
 Allow from all
</Directory>
Alias /nagios "/usr/local/nagios/share"
<Directory "/usr/local/nagios/share">
 SSLRequireSSL
 Options None
 AllowOverride AuthConfig
 Allow from all
 </Directory>

4.usr/local/nagios/share/.htaccess & /usr/local/nagios/sbin/

AuthName "LDAPS Login"
AuthType Basic
AuthBasicProvider ldap
AuthLDAPURL "ldaps://ldap3ap.xxx.xxx.xx/o=xxx,c=xx"
AuthLDAPBindDN "uid=nagios,ou=ApUsers,o=xxx,c=xx"
AuthLDAPBindPassword "xxxxxxxxxxxx"
Require ldap-user john mary Z11222 Z19327 Z19328

I usually login to the web and look at my servers's staus, nagios worked well. But the other web test tool shows that sometime it get an internal server error 500 return code. When I look at the ssl_access.log, it also has an error when I access the web, although I didn't feel something was wrong.

/etc/httpd/logs/ssl_access.log

xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:01:35 +0800] "GET /nagios/side.php HTTP/1.1" 200 4735
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:01:36 +0800] "GET /nagios/main.php HTTP/1.1" 200 7990
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:01:38 +0800] "GET /nagios/ HTTP/1.1" 200 1079
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:01:38 +0800] "GET /nagios/side.php HTTP/1.1" 200 4735
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:01:38 +0800] "GET /nagios/main.php HTTP/1.1" 200 7990
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:32 +0800] "GET /nagios/ HTTP/1.1" 500 527
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:32 +0800] "GET /nagios/side.php HTTP/1.1" 500 527
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:32 +0800] "GET /nagios/main.php HTTP/1.1" 200 7990
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:35 +0800] "GET /nagios/ HTTP/1.1" 200 1079
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:35 +0800] "GET /nagios/side.php HTTP/1.1" 200 4735
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:35 +0800] "GET /nagios/main.php HTTP/1.1" 200 7990
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:38 +0800] "GET /nagios/ HTTP/1.1" 500 527
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:38 +0800] "GET /nagios/side.php HTTP/1.1" 500 527
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:11:38 +0800] "GET /nagios/main.php HTTP/1.1" 200 7990
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:21:32 +0800] "GET /nagios/ HTTP/1.1" 200 1079
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:21:32 +0800] "GET /nagios/side.php HTTP/1.1" 200 4735
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:21:32 +0800] "GET /nagios/main.php HTTP/1.1" 200 7990
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:21:35 +0800] "GET /nagios/ HTTP/1.1" 500 527
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:21:35 +0800] "GET /nagios/side.php HTTP/1.1" 200 4735
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:21:36 +0800] "GET /nagios/main.php HTTP/1.1" 200 7990
xxx.xxx.xxx.xxx - xxxxx [04/Mar/2018:09:21:38 +0800] "GET /nagios/ HTTP/1.1" 200 1079

In short, I want to solve the 500 Internal Server Error.