HTTP apache server Error 503 service unavailable

Question

I have this problem message.

Service Unavailable

The server is temporarily unable to service your request due to maintenance 
in localhost apache downtime or capacity problems. 

Please try again later.

yesterday i opened the localhost and it was fine but today i have this error every time i'm using fedora what is the problem please? and how can i solve it? thank you

Answer 1

I have faced same issue while setting up apache web server with multiple tomcats. Check apache logs and /var/log/audit/audit.log to get the details.

It might be the reason that httpd processes cannot initiate outbound connections. To fix the above problem run below command.

/usr/sbin/setsebool -P httpd_can_network_connect 1

check http://sysadminsjourney.com/content/2010/02/01/apache-modproxy-error-13permission-denied-error-rhel/