Latest revision as of 13:10, 10 July 2013

Example Vhost Configurations

Generic http

<VirtualHost *:80>
     ServerName foo.com
     ServerAlias *.foo.com
     DocumentRoot "/www/files/foo"
     ErrorLog /www/logs/foo.com.error_log
     CustomLog /www/logs/foo.com.access_log combined
</VirtualHost>

Note, I usually put the following in httpd.conf to keep the individual virtualhosts un-cluttered, since all my sites have the parent same doc root:

ServerAdmin me@me.com
<Directory "/www/files">
        Options FollowSymLinks MultiViews
        Order allow,deny
        Allow from all
</Directory>

Generic SSL

<VirtualHost 10.0.0.65:443>
        ServerName secure.foo.com
        DocumentRoot "/www/files/foo"
        ErrorLog /www/logs/secure.foo.com.error_log
        CustomLog /www/logs/secure.foo.com.access_log combined

        SSLEngine on
        SSLProtocol all -SSLv2
        SSLCipherSuite SSLv3:+HIGH:+MEDIUM
        #Network Solutions is where i get my ssl certs, they require chaining
        SSLCertificateFile /usr/local/apache2/ssl.certs/secure.foo.com.crt
        SSLCertificateChainFile /usr/local/apache2/ssl.certs/secure.foo.com.NetworkSolutions_CA.crt
        SSLCertificateKeyFile /usr/local/apache2/conf/ssl.certs/secure.foo.com.key

        <FilesMatch "\.(cgi|shtml|phtml|php3?)$">
                SSLOptions +StdEnvVars
        </FilesMatch>
        <Directory "/www/files/foo">
                SSLOptions +StdEnvVars
                Options FollowSymLinks MultiViews
                AllowOverride None
                Order allow,deny
                Allow from all
        </Directory>
        SetEnvIf User-Agent ".*MSIE.*"   nokeepalive ssl-unclean-shutdown        downgrade
</VirtualHost>

Redirects

Basic

#Simple
Redirect 301 /main/do/Careers http://www.dominionenterprises.com/careers
#For url with a space
RewriteRule ^main/do/businesses/id/4/category/For(\ |%20)Consumers http://www.dominionenterprises.com/our-brands/recruitment [R=301,L]

http to https

<VirtualHost *:80>
        ServerName secure.foo.com
        RewriteEngine On
        RewriteRule (.*) https://my.cycletrader.com$1
</VirtualHost>

Issues

Semaphores on CentOS

Sometimes a system will run out of semaphores, apache causes this pretty often on centos 5, resulting in this error:

[emerg] (28)No space left on device: Couldn't create accept lock

Even though there is plenty of disk space for logs & whatnot. To see the semaphores an apache process is using:

ipcs -s | grep apache

And to remove them:

ipcs -s | grep apache | awk ' { print $2 } ' | xargs ipcrm sem

HowTo

Show which MPM is in use: httpd -V | grep MPM

Difference between revisions of "Apache"