Tab – SSL

SSL settings can be modified here to configure the details of the HTTPS connection for an individual virtual host.

SSL Tab
Enable OCSP stapling
This option enables Online Certificate Status Protocol OCSP stapling.
The Online Certificate Status Protocol (OCSP) was created as an alternative to the Certificate Revocation List (CRL) protocol. Both protocols are used to check whether an SSL Certificate has been revoked.
 
 
Server certificate
A selectable list of SSL/TLS certificates for this virtual host.
 
 
E-mail address
The email address of the server administrator.
Note:
This email address is used as contact information for Let's Encrypt functionality.
Content of SSL server certificate
Shows the content of the certificate.
 
 
Content of CA chain
Shows the chain of trust of the certificate chain.
Note:
OCSP requires valid chain information for certificate validation - see also Tab – Client Certificates.
 
 
Content of SSL root CA certificate
Shows the content of the certificate.
 
 
SSL protocol
  • The SSL/TLS version which will be used by this virtual host can be set here.
  • Radio button Default – Apache default values will be used.
  • Radio button Custom – set custom values in the SSL protocol field below.
Note:
See the Apache mod_ssl documentation for complete documentation.
 
 
Cipher suite
  • List the ciphers that the client is permitted to negotiate.
  • Radio button Default – default Airlock cipher suite, optimized for security and backward compatibility with clients.
  • Radio button Custom – set custom values in the cipher suite field below.
Note:
See the Apache mod_ssl documentation for complete documentation.

Note that the Airlock Gateway default SSL/TLS settings are optimized for compatibility and security. If you override the default settings you will no longer profit from these optimizations in further Airlock Gateway updates.

We strongly recommend using the default TLS settings of Airlock Gateway in order to mitigate the risk of attacks based on older protocol versions. A list of known attacks on SSL/TLS can be found here: Attacks on TLS and Airlock Gateway Protection Mechanisms

Weakening SSL/TLS settings will most likely result in low scores for scanners like ssllabs.com or pentester reporting the security issues associated with old ciphers and protocols.

Further information and links