[CentOS] Multiple Instances of Apache on the same IP

Thu Oct 12 14:02:55 UTC 2006
Tony Molloy <tony.molloy at ul.ie>

Hi All,

I'm trying to run multiple instances ( 2 ) of Apache on a single IP address. I need this because I need the two instances to run as different users.

I've set up two config files with the following:

   config-1                                        config-2

ServerRoot "/etc/httpd"                  ServerRoot "/etc/httpd"
Listen                  Listen
Include conf.d/*.conf                      Include conf.d/*.conf
User apache                                   User backuppc
Group apache                                Group backupp
DocumentRoot "/var/www/html"    DocumentRoot "/var/www/html"

When I start either apache it works but when I try to start both the second one doesn't start.

Error Message:

When I start config-1 first and then config-2 I get the following error message

Starting httpd: (98)Address already in use: make_sock: could not bind to address
no listening sockets available, shutting down
Unable to open logs

When I start config-2 first and the config-1 I get nothing.

I suspect the problem is loading the SSL module which in both cases is trying to listen on port 443. So short of removing the ssl.conf file from conf.d or creating duplicate conf.d directories one without the ssl.conf file is there anyway to do this.




Tony Molloy.

Dept. of Comp. Sci.
University of Limerick
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