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I have about 10 VirtualHosts and I like to keep the error_logs separated. Recently, I need to also have the error_logs all combined for some mod_security scanning.

If I define 2 ErrorLogs for a test VirtualDomain, I notice that no error's are being logged. Pretty strange.

Is it possible to have a CustomLog play the role of an ErrorLog?

Or am I defining my 2 ErrorLogs incorrectly?

    DocumentRoot /var/www/html/mydomain
    UseCanonicalName Off

    ErrorLog logs/
    ErrorLog logs/unified_modsecurity-error_log

    CustomLog logs/ combined
    UserDir disabled
    UserDir enabled mydomainuser
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1 Answer 1

up vote 2 down vote accepted

No, it is not possible to have two ErrorLog directives per VirtualHost. However, you could use Apache's ability to pipe to a command in order to log to two (or more) files using the UNIX 'tee' command:

ErrorLog "|/usr/bin/tee -a /var/log/apache/error-1.log /var/log/apache/error-2.log"

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I will try this. If I were to do ErrorLog "|/usr/bin/tee -a /var/log/httpd/ /var/log/httpd/unified_modsecurity-error_log", will the logs still roll over like how they do today? – Pat Sep 6 '13 at 0:49
facepalm logrotate should take care of the rotations. I'll give your solution a try, thanks! – Pat Sep 6 '13 at 2:16

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