Daniels Blog

Link: http://alenitchev.wordpress.com/2006/09/12/many-common-names-cn-in-one-ssl-certificate/

As Dmitri Alenitchev points out, you can use several common names in one SSL certificate, using something like:

[ req_distinguished_name ]
0.commonName = Common Name (1)
0.commonName_default = www.first-domain.com
0.commonName_max = 64
1.commonName = Common Name (2)
1.commonName_default = *.second-domain.com
1.commonName_max = 64
...

in /etc/ssl/openssl.cnf.

Also see the CAcert.org wiki about this.

Update: Using SubjectAltName instead seems more compatible.