Multiple SSL domains on the same IP address and same port?

Posted by John on Server Fault See other posts from Server Fault or by John
Published on 2010-02-04T22:36:43Z Indexed on 2012/09/09 21:40 UTC
Read the original article Hit count: 134

Filed under:

apache2

|

ssl

|

virtualhost

|

canonical

|

sni

This is a Canonical Question about Hosting multiple SSL websites on the same IP.

I was under the impression that each SSL Certificate required it's own unique IP Address/Port combination. But the answer to a previous question I posted is at odds with this claim.

Using information from that Question, I was able to get multiple SSL certificates to work on the same IP address and on port 443. I am very confused as to why this works given the assumption above and reinforced by others that each SSL domain website on the same server requires its own IP/Port.

I am suspicious that I did something wrong. Can multiple SSL Certificates be used this way?

© Server Fault or respective owner

Related posts about apache2

apache2: Could not open configuration file /etc/apache2/apache2.conf: Permission denied

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I recently upgraded Ubuntu to the latest LTS edition on my work laptop, which I use as a LAMP development platform. The upgrade was from 12.4 to 14.4. Now I'm having trouble getting apache up and running again. Here is the output from an attempt: antonc@antonc-laptop:/etc/apache2$ sudo service apache2… >>> More
Apache segfault glibc segfault

as seen on Server Fault - Search for 'Server Fault'
I keep getting (about every 5-6 hours) this segfault in apache: [Tue Jun 26 12:43:10 2012] [notice] child pid 26810 exit signal Aborted (6) *** glibc detected *** /usr/sbin/apache2: free(): invalid pointer: 0xb68c2628 *** ======= Backtrace: ========= /lib/i386-linux-gnu/libc.so.6(+0x6ff22)[0xb75aef22] /lib/i386-linux-gnu/libc… >>> More
Localhost not working after installing PHP on Mountain Lion

as seen on Server Fault - Search for 'Server Fault'
I've installed php using brew install php54 --with-mysql, I've set up all the path correctly. which php will give me /usr/local/bin/php php -v will give me PHP 5.4.8 (cli) (built: Nov 20 2012 09:29:31) php --ini will give me: Configuration File (php.ini) Path: /usr/local/etc/php/5.4 Loaded Configuration… >>> More
Apache 2 Virtual Hosts no working on OSX 10.6

as seen on Server Fault - Search for 'Server Fault'
This is my first MacBook and I'm trying to get virtual hosts up and running so as it's going to be my dev machine. I've got apache/php/mysql running fine, the problem is that what ever address I go to I just get one of the virtual hosts I've setup. I can't even get to the root site anymore. I had… >>> More
apache2 error Could not open configuration file /etc/apache2/conf.d/: No such file or directory

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have just upgraded my Ubuntu 13.10 and apache2 is not working. When I try to start the apache2 server it is printing following errors: * Starting web server apache2 * The apache2 configtest failed. Output of config test was: apache2: Syntax error on line 263 of /etc/apache2/apache2.conf: Could… >>> More

Related posts about ssl

Plesk SSL Certificate (Default cert when SSL enabled, CORRECT cert when SSL is disabled)

as seen on Server Fault - Search for 'Server Fault'
I'm running Plesk 8.6.0: I have an SSL cert installed through Plesk's admin interface. But I have a bit of an issue: When I enabled SSL for the site, and selected my cert, then restart httpd, Plesk defaults to using my self-signed default certificate. Conversely, when I disable SSL support for the… >>> More
apache renew ssl not working [on hold]

as seen on Server Fault - Search for 'Server Fault'
Downloaded a new ssl cert from go daddy and installed the cert on apache2 server put the cert in /etc/ssl/certs/ folder put the gd_bundle.crt in the /etc/ssl/ folder private key is in /etc/ssl/private/private.key I just replaced the original files with the new files, did not replace the private… >>> More
Cant connect to mysql using self signed SSL certificate

as seen on Server Fault - Search for 'Server Fault'
After creating a self-signed SSL certificate, I have configured my remote mysqld to use them (and ssl is enabled) I ssh into my remote server, and try connecting to its own mysqld using ssl (mysql server is 5.5.25).. ~> mysql -u <user> -p --ssl=1 --ssl-cert=client.cert --ssl-key=client… >>> More
How to log invalid client SSL certificate in SSL

as seen on Server Fault - Search for 'Server Fault'
I have a IIS web site which requires client certificate. I have turned off CRL checking. The client is unable to access the web site - he gets 403.17 (certificate expired) error. I would like to log the certificate he is using, becaue I think he is using the wrong certificate. Is there a way to… >>> More
Mixing SSL and non-SSL content in an Apache2 virtual host

as seen on Server Fault - Search for 'Server Fault'
I have a (hopefully) common scenario for one of my sites that I just can't seem to figure out how to deploy correctly. I have the following site and directories for example.com: These need to require SSL: /var/www/example.com/admin /var/www/example.com/order These need to be non-SSL: /var/www/example… >>> More