Re: Locking down ciphers in OpenLDAP with GnuTLS

2019-02-08 Thread Philip Colmer
Many thanks, Ryan. I'll schedule a maintenance window so that I can do some testing without affecting users. Regards Philip On Thu, 7 Feb 2019 at 17:09, Ryan Tandy wrote: > On Thu, Feb 07, 2019 at 06:05:02PM +0100, Michael Ströder wrote: > >You should rather set > > > >olcTLSProtocolMin:

Re: Locking down ciphers in OpenLDAP with GnuTLS

2019-02-07 Thread Ryan Tandy
On Thu, Feb 07, 2019 at 06:05:02PM +0100, Michael Ströder wrote: You should rather set olcTLSProtocolMin: 3.3 Unfortunately this option is currently implemented for OpenSSL only, while Philip mentioned he is using GnuTLS.

Re: Locking down ciphers in OpenLDAP with GnuTLS

2019-02-07 Thread Michael Ströder
On 2/7/19 5:50 PM, Philip Colmer wrote: > I want to restrict the cipher suites used in OpenLDAP so that only > TLS1.2 is supported. > > Looking at https://openldap.org/doc/admin24/tls.html, I first tried > setting olcTLSCipherSuite to "HIGH" but the LDAP server gave an error 80 > and then stopped

Locking down ciphers in OpenLDAP with GnuTLS

2019-02-07 Thread Philip Colmer
I want to restrict the cipher suites used in OpenLDAP so that only TLS1.2 is supported. Looking at https://openldap.org/doc/admin24/tls.html, I first tried setting olcTLSCipherSuite to "HIGH" but the LDAP server gave an error 80 and then stopped accepted further connections until I restarted it.