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How to configure multiple subdomains with SSL in Apache?

Configuration:

  • Debian
  • Apache2
  • Wildcard SSL for: * .example.com
  • subdomain: a.example.com, b.example.com.
  • 1 dedicated server
  • Websites are in NodeJS (ProxyPass ...)

At the moment, I can get a.example.com to work. But how can I make a.example.com and b.example.com work on the same server?

/etc/apache2/site-enable/a.example.com.conf
<VirtualHost  *:80>
  ServerName a.example.com
  Redirect permanent / https://a.example.com
</VirtualHost>
<VirtualHost  *:80>
  ServerName www.a.example.com
  Redirect permanent / https://a.example.com
</VirtualHost>
Listen 443

<VirtualHost *:443>
 ServerName a.example.com
 ServerAlias www.a.example.com

 ProxyRequests off
 LimitRequestLine  150000
 LimitRequestFieldSize 150000
 <Proxy *>
  Order deny,allow
  Allow from all
 </Proxy>

 <Location />
  ProxyPass http://localhost:4949/
  ProxyPassReverse http://localhost:4949/
 </Location>

 SSLEngine on
 SSLProtocol all -SSLv2 -SSLv3
 SSLCipherSuite ALL:!DH:!EXPORT:!RC4:+HIGH:+MEDIUM:!LOW:!aNULL:!eNULL

 SSLCertificateFile   /etc/ssl/2__.example.fr.crt
 SSLCertificateKeyFile  /root/XXXXXX.key
 SSLCertificateChainFile    /etc/ssl/1_root_bundle.crt 
</VirtualHost>

UPDATE --- If I try this:

/etc/apache2/site-enable/b.example.com.conf
<VirtualHost  *:80>
ServerName b.example.com
Redirect permanent / https://b.example.com
</VirtualHost>
<VirtualHost  *:80>
ServerName www.b.example.com
Redirect permanent / https://b.example.com
/VirtualHost>

Listen 443

<VirtualHost *:443>
 ServerName b.example.com
 ServerAlias www.b.example.com

 ProxyRequests off
 LimitRequestLine  150000
 LimitRequestFieldSize 150000
 <Proxy *>
  Order deny,allow
  Allow from all
 </Proxy>

 <Location />
  ProxyPass http://localhost:6949/
  ProxyPassReverse http://localhost:6949/
 </Location>

 SSLEngine on
 SSLProtocol all -SSLv2 -SSLv3
 SSLCipherSuite ALL:!DH:!EXPORT:!RC4:+HIGH:+MEDIUM:!LOW:!aNULL:!eNULL

 SSLCertificateFile   /etc/ssl/2__.example.fr.crt
 SSLCertificateKeyFile  /root/XXXXXX.key
 SSLCertificateChainFile    /etc/ssl/1_root_bundle.crt 
</VirtualHost>

I get it

[....] Restarting web server: apache2[Thu Jul 21 14:58:01 2016] [warn] module passenger_module is already loaded, skipping
[Thu Jul 21 14:58:01 2016] [warn] _default_ VirtualHost overlap on port 443, the first has precedence
[Thu Jul 21 14:58:01 2016] [warn] NameVirtualHost *:80 has no VirtualHosts
 ... waiting [Thu Jul 21 14:58:02 2016] [warn] module passenger_module is already loaded, skipping
[Thu Jul 21 14:58:02 2016] [warn] _default_ VirtualHost overlap on port 443, the first has precedence
[Thu Jul 21 14:58:02 2016] [warn] NameVirtualHost *:80 has no VirtualHosts
(98)Address already in use: make_sock: could not bind to address [::]:443

--- UPDATE

I uninstalled Listen 443 on b.exemple.com.conf

But now I have this:

a.example.com ---> b.example.com
b.example.com ---> b.example.com

The problem is that when I try to access a, I am redirected to b

What am I doing wrong?

/etc/apache2/site-enable/b.example.com.conf
<VirtualHost  *:80>
ServerName b.example.com
Redirect permanent / https://b.example.com
</VirtualHost>
<VirtualHost  *:80>
ServerName www.b.example.com
Redirect permanent / https://b.example.com
/VirtualHost>

<VirtualHost *:443>
 ServerName b.example.com
 ServerAlias www.b.example.com

 ProxyRequests off
 LimitRequestLine  150000
 LimitRequestFieldSize 150000
 <Proxy *>
  Order deny,allow
  Allow from all
 </Proxy>

 <Location />
  ProxyPass http://localhost:6949/
  ProxyPassReverse http://localhost:6949/
 </Location>

 SSLEngine on
 SSLProtocol all -SSLv2 -SSLv3
 SSLCipherSuite ALL:!DH:!EXPORT:!RC4:+HIGH:+MEDIUM:!LOW:!aNULL:!eNULL

 SSLCertificateFile   /etc/ssl/2__.example.fr.crt
 SSLCertificateKeyFile  /root/XXXXXX.key
 SSLCertificateChainFile    /etc/ssl/1_root_bundle.crt 
</VirtualHost>

- UPDATE FOUND SOLUTION :)

I finally found a solution to my problem, thanks for your help!

<IfModule mod_ssl.c>
    Listen 443
    NameVirtualHost *:443    
</IfModule>
<VirtualHost *:443>
  ServerName www.example.fr
  DocumentRoot "/var/www/html/404"

  SSLEngine on
  SSLProtocol all -SSLv2 -SSLv3
  SSLCipherSuite ALL:!DH:!EXPORT:!RC4:+HIGH:+MEDIUM:!LOW:!aNULL:!eNULL

  SSLCertificateFile   /etc/ssl/2__.example.fr.crt
  SSLCertificateKeyFile  /root/XXXXX.key
  SSLCertificateChainFile    /etc/ssl/1_root_bundle.crt 
</VirtualHost>
<VirtualHost  *:80>
    ServerName www.example.fr
    Redirect permanent / https://a.example.fr
</VirtualHost>


<VirtualHost  *:80>
    ServerName a.example.fr
    Redirect permanent / https://a.example.fr
</VirtualHost>
<VirtualHost *:443>
  ServerAdmin admin@admin.fr
  ServerName a.example.fr

  ProxyRequests off
  LimitRequestLine  150000
  LimitRequestFieldSize 150000
  <Proxy *>
    Order deny,allow
    Allow from all
  </Proxy>

  <Location />
    ProxyPass http://localhost:4949/
    ProxyPassReverse http://localhost:4949/
  </Location>

  SSLEngine on
  SSLProtocol all -SSLv2 -SSLv3
  SSLCipherSuite ALL:!DH:!EXPORT:!RC4:+HIGH:+MEDIUM:!LOW:!aNULL:!eNULL

  SSLCertificateFile   /etc/ssl/2__.example.fr.crt
  SSLCertificateKeyFile  /root/serveurA.key
  SSLCertificateChainFile    /etc/ssl/1_root_bundle.crt 

</VirtualHost>





<VirtualHost  *:80>
    ServerName b.example.fr
    Redirect permanent / https://b.example.fr
</VirtualHost>
<VirtualHost *:443>
  ServerAdmin admin@admin.fr
  ServerName b.example.fr

  ProxyRequests off
  LimitRequestLine  150000
  LimitRequestFieldSize 150000
  <Proxy *>
    Order deny,allow
    Allow from all
  </Proxy>

  <Location />
    ProxyPass http://localhost:6949/
    ProxyPassReverse http://localhost:6949/
  </Location>

  SSLEngine on
  SSLProtocol all -SSLv2 -SSLv3
  SSLCipherSuite ALL:!DH:!EXPORT:!RC4:+HIGH:+MEDIUM:!LOW:!aNULL:!eNULL

  SSLCertificateFile   /etc/ssl/2__.example.fr.crt
  SSLCertificateKeyFile  /root/serveurA.key
  SSLCertificateChainFile    /etc/ssl/1_root_bundle.crt 

</VirtualHost>
+4
1

(*.example.com) , , SSL ,

/ <virtualhost> apache httpd.conf ssl.conf

 ServerName www.example.com
 ServerAlias *.example.com

:

a.example.com
b.example.com
WHATEVER_SUB-DOMAIN_TEXT.example.com
+5

Source: https://habr.com/ru/post/1648647/

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