Difference between revisions of "Configuring multiple SSL sites"

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<yambe:breadcrumb self="Configuring multiple SSL sites">Apache web server configuration</yambe:breadcrumb>
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Apache web server configuration]] > [[Configuring multiple SSL sites]]
=Configuring apache for SSL virtual-hosting using httpd.conf and ssl.conf modification=


To configure SSL virtual-hosting one can use following steps:
To configure SSL virtual-hosting one can use following steps:
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#::
#::
#::    SSLEngine on
#::    SSLEngine on
#::    SSLProtocol all -SSLv2 -SSLv3  
#::    SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
#::    SSLHonorCipherOrder on  
#::    SSLHonorCipherOrder on
#::    SSLCipherSuite "EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384 EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256 EECDH+aRSA+RC4 EECDH EDH+aRSA !RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK !SRP !DSS"  
#::    SSLCipherSuite "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA!RC4:EECDH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"
#::    Header always set Strict-Transport-Security "max-age=31536000"
#::</VirtualHost>
#::</VirtualHost>
#:</pre>
#:</pre>
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'''This is no longer required.  mod_ssl seems to handle multiple SSL virtual-hosts with different certificates with help of SNI extensions pretty well.'''
'''This is no longer required.  mod_ssl seems to handle multiple SSL virtual-hosts with different certificates with help of SNI extensions pretty well.'''


mod_gnutls allows us to have multiple HTTPS virtual hosts on same physical server with single IP address and multiple domain names. The certificate should be wildcard certificate like for *.iiit.ac.in, so that we can host any hostname with suffix iiit.ac.in with same certificate.  
mod_gnutls allows us to have multiple HTTPS virtual hosts on same physical server with single IP address and multiple domain names. The certificate should be wildcard certificate like for *.example.com so that we can host any hostname with suffix example.com with same certificate.  


==Installing and configuring mod_gnutls on Cent-OS==
==Installing and configuring mod_gnutls on Cent-OS==
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#::    CustomLog logs/test1.barjatiya.com-access_log common
#::    CustomLog logs/test1.barjatiya.com-access_log common
#::    SSLEngine on
#::    SSLEngine on
#::    SSLProtocol all -SSLv2
#::    SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
#::    SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+LOW
#::    SSLHonorCipherOrder on
#::    SSLCipherSuite "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA!RC4:EECDH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"
#::    Header always set Strict-Transport-Security "max-age=31536000"
#::    SSLCertificateFile /etc/httpd/conf/test1.pem
#::    SSLCertificateFile /etc/httpd/conf/test1.pem
#::</VirtualHost>
#::</VirtualHost>
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<yambe:breadcrumb self="Configuring multiple SSL sites">Apache web server configuration</yambe:breadcrumb>
 
Refer:
* https://www.mysterydata.com/how-to-get-a-score-rating-in-ssllabs-qualys/
 
 
 
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Apache web server configuration]] > [[Configuring multiple SSL sites]]

Latest revision as of 07:21, 6 March 2022

Home > CentOS > CentOS 6.x > Apache web server configuration > Configuring multiple SSL sites

To configure SSL virtual-hosting one can use following steps:

  1. Install mod_ssl using 'yum -y install mod_ssl'
  2. Edit '/etc/httpd/conf.d/ssl.conf' and set correct values for: 
    SSLCertificateFile /etc/httpd/conf/ssl.crt
    

    SSLCertificateKeyFile /etc/httpd/conf/ssl.key
    

    SSLCACertificateFile /etc/httpd/conf/ca-bundle.pem
  3. Edit '/etc/httpd/conf/httpd.conf' file and append following configuration 
    NameVirtualHost *:443
    

    

    <VirtualHost *:443>
    

    

    <Appropriate virtual-host configuration>
    

    

    SSLEngine on
    

    SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
    

    SSLHonorCipherOrder on
    

    SSLCipherSuite "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA!RC4:EECDH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"
    

    Header always set Strict-Transport-Security "max-age=31536000"
    

    </VirtualHost>


Working of HTTPS

During a HTTPS communication first a secure channel is established which required exchange of certificates. In most cases server has no idea which virtual-host would be communicated with and hence can server only one single HTTPS certificate. This is no longer true for modern browsers which support SNI. Refer https://www.digitalocean.com/community/tutorials/how-to-set-up-multiple-ssl-certificates-on-one-ip-with-apache-on-ubuntu-12-04


Configuring mod gnutls for supporting multiple SSL virtualhosts

This is no longer required. mod_ssl seems to handle multiple SSL virtual-hosts with different certificates with help of SNI extensions pretty well.

mod_gnutls allows us to have multiple HTTPS virtual hosts on same physical server with single IP address and multiple domain names. The certificate should be wildcard certificate like for *.example.com so that we can host any hostname with suffix example.com with same certificate.

Installing and configuring mod_gnutls on Cent-OS

  1. Install libgpg-error from ftp://ftp.gnupg.org/gcrypt/libgpg-error
  2. Compile and install libgcrypt from source. Take libgcrypt from ftp://ftp.gnupg.org/gcrypt/libgcrypt
  3. rm /usr/lib64/httpd/modules/*tls*
  4. cp /usr/lib64/libgnutls* /usr/lib64/httpd/modules/
  5. Configure and make mod_gnutls from http://linux.wareseeker.com/download/mod-gnutls-0.2.0.rar/319193. Do not make install
  6. cp src/.libs/libmod_gnutls.so /usr/lib64/httpd/modules/
  7. cp data/{rsa,dh}file /etc/httpd/conf (Very important step. Do not miss)
  8. cd /usr/lib64/httpd/modules/
  9. mv libmod_gnutls.so mod_gnutls.so
  10. Put LoadModule gnutls_module modules/mod_gnutls.so in /etc/httpd/conf/httpd.conf
  11. Put 
    AddType application/x-x509-ca-cert .crt
    

    AddType application/x-pkcs7-crl    .crl
    in /etc/httpd/conf/httpd.conf
  12. mkdir -m 0700 /var/cache/mod_gnutls_cache
  13. chown apache:apache /var/cache/mod_gnutls_cache
  14. Put 
    GnuTLSCache dbm "/var/cache/mod_gnutls_cache"
    

    GnuTLSCacheTimeout 300
    in /etc/httpd/conf/httpd.conf
  15. Do configuration in /etc/httpd/conf/httpd.conf for 443 virtualhosts like 
    NameVirtualHost *:443
    

    <VirtualHost *:443>
    

    ServerAdmin a@b.com
    

    DocumentRoot /home/test1/html
    

    ServerName test1.barjatiya.com
    

    ErrorLog logs/test1.barjatiya.com-error_log
    

    CustomLog logs/test1.barjatiya.com-access_log common
    

    SSLEngine on
    

    SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
    

    SSLHonorCipherOrder on
    

    SSLCipherSuite "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA!RC4:EECDH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"
    

    Header always set Strict-Transport-Security "max-age=31536000"
    

    SSLCertificateFile /etc/httpd/conf/test1.pem
    

    </VirtualHost>
    where Certificate can be generated using openssl req -new -x509 -days 999 -nodes -out apache.pem -keyout apache.pem
    Do chown root:apache /etc/httpd/conf/httpd.conf and chmod 640 /etc/httpd/conf/httpd.conf so that normal users cannot read httpd.conf file when using virtual hosting
  16. Comment VirtualHost setting in /etc/httpd/conf.d/ssl.conf


Refer:


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