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Accepted
Ryan
Asked: 2012-04-06 14:04:05 +0800 CST

Apache NameVirtualHost on port 443 ignores ServerAlias

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I've got a name-based virtual host setup on port 443 such that requests on host 'apple.fruitdomain' are proxied to the apple-app and requests on host 'orange.fruitdomain' are proxied to orange-app. This is working, but I'd like to add a ServerAlias for each such that requests on host 'apple' are proxied to apple-app and requests on host 'orange' are proxied to the orange-app. If I simply add a ServerAlias directive to the virtual host it doesn't work. ssl.conf below:

Listen 443
NameVirtualHost *:443
<VirtualHost *:443>
ServerName apple.fruitdomain
ServerAlias apple
SSLProxyEngine on
ProxyPass /apple-app https://localhost:8181/apple-app
ProxyPassReverse /apple-app https://localhost:8181/apple-app
...
</VirtualHost>
<VirtualHost *:443>
ServerName orange.fruitdomain
ServerAlias orange
SSLProxyEngine on
ProxyPass /orange-app https://localhost:8181/orange-app
ProxyPassReverse /orange-app https://localhost:8181/orange-app
...
</VirtualHost>

Interestingly if I do a similar setup but with port 80 then the ServerAlias works...

apache-2.2 virtualhost ssl

4 Answers

  1. Best Answer

    Well, from my testing it appears that the ServerAlias directive is ignored when using name-based virtual hosting on port 443 with Apache 2.2.15. This is probably due to the special SNI protocol requirement (SNI - Wikipedia; SNI - Apache Wiki). The work around is to create two separate virtual hosts; from my example one would have ServerName orange.fruitdomain and the other would have ServerName orange.

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  2. In order to fix underlined configuration you need to create another VirtualHost for "default" purposes using:

        ServerName localhost
or
    ServerName your_server_name

    Please check apache httpd docs (Ex.) - http://httpd.apache.org/docs/2.2/mod/core.html#servername

    The ServerName directive sets the request scheme, hostname and port that the server uses to identify itself. This is used when creating redirection URLs. Additionally, ServerName is used (possibly in conjunction with ServerAlias) to uniquely identify a virtual host, when using name-based virtual hosts.

    • 0

  3. comment the listen 443 line because listening start with the ssl automaticaly and if you start it before it will see a conflict.

    • -2
    • -7