https timeout while http works

Question

I've set up ssl for my domain and it works from Apache perspective.
The problem is that typing https://mydomain.com sometimes results in timeouts and sometimes it works fine. When it works

It takes some time to enter my website via http but it never timeouts. Why does this happen for https and is there a way to control timeout time for https?

My configuration: Apache 2.2.11 on CentOS 5

NameVirtualHost *:443
<VirtualHost *:443>
    SuexecUserGroup foo
    DocumentRoot /home/mydomain/www/
    ServerName mydomain.com

    SSLEngine on
    SSLProtocol -all +TLSv1 +SSLv3
    SSLCipherSuite HIGH:MEDIUM:!aNULL:+SHA1:+MD5:+HIGH:+MEDIUM
    SSLCertificateFile /path/mydomain.com.crt
    SSLCertificateKeyFile /path/mydomain.com.key
    SSLVerifyClient none
    SSLProxyVerify none
    SSLVerifyDepth 0
    SSLProxyVerifyDepth 0
    SSLProxyEngine off
    SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
    <Directory "/home/mydomain/www">
            SSLRequireSSL
            AllowOverride all
            Options +FollowSymLinks +ExecCGI -Indexes
            AddHandler php5-fastcgi .php
            Action php5-fastcgi /cgi-bin/a.fcgi
            Order allow,deny
            Allow from all
    </Directory>
    <Directory "/var/suexec/mydomain.com">
            AllowOverride None
            Options None
            Order allow,deny
            Allow from all
    </Directory>
</VirtualHost>

Thanks.

EDIT

It's a self signed certificate.
When https://mydomain.com works it results in warning that the certificate is not signed but accepting it lets me see the website via https.

Answer 1

Try checking the SSL installation at http://www.sslshopper.com/ssl-checker.html. It might be able to find a problem.

Answer 2

I found the cause of this problem.

Port 443 was closed in my firewall configuration. It worked sometimes because my IP was added to firewall as a safe one. That's why it did not work for other IPs.

All I had to do is open port 443 in firewall and it works just fine :)