Yes along with TLS certs as well.

cat /opt/dirsvcs/etc/openldap/slapd.conf|grep -i TLSProtocolMin

TLSProtocolMin 3.2

-Narayanan
From: Nick Folino <[email protected]>
Sent: Wednesday, November 3, 2021 7:14 AM
To: Ballem, Narayanan <[email protected]>
Cc: [email protected]
Subject: Re: [EXT]:Re: OpenLDAP SSLV3 disable

Where in the slapd.conf did you put the tlsprotocolmin statement?

Nick

On Wed, Nov 3, 2021 at 7:00 AM Ballem, Narayanan 
<[email protected]<mailto:[email protected]>> wrote:
It's rhel7 , openldap version is 2.4.54 and we use slapd.conf.

Narayanan

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________________________________
From: Nick Folino <[email protected]<mailto:[email protected]>>
Sent: Wednesday, November 3, 2021 6:14:29 AM
To: Ballem, Narayanan 
<[email protected]<mailto:[email protected]>>
Cc: [email protected]<mailto:[email protected]> 
<[email protected]<mailto:[email protected]>>
Subject: [EXT]:Re: OpenLDAP SSLV3 disable

What version of RHEL?  OpenLDAP?  openssl?
Is your installation using slapd.conf? or is it using cn=config?

Nick

On Tue, Nov 2, 2021 at 10:13 PM Ballem, Narayanan 
<[email protected]<mailto:[email protected]>> wrote:





HI Team,



Hope you can help with this issue.



I am trying to disable SSLV3 on OpenLDAP servers we are using OpenLDAP as a 
proxy with upstream Active directory servers. we are using CA certs on this 
openssl we would like to disable SSLV3. Based on earlier update from OpenLdap 
Technical support team, I added "TLSProtocolMin 3.2" and able to restart slapd 
service as well without any issue.



However when we tried to test SSLV3 connectivity it's still showing SSLv3 
enabled .

This OpenLDAP server built on RHEL server with locally compiled and openssl 
rpm/binaries are part of base RHEL OS image.





cat /opt/dirsvcs/etc/openldap/slapd.conf|grep -i TLSProtocolMin

TLSProtocolMin 3.2



openssl s_client -connect localhost:1636 -ssl3 -quiet

depth=3 CN = XXX Root Certificate Authority

verify return:1



SSLV3 is insecure as you know we are looking to disable this asap . Any help in 
addressing this much appreciated.



Thanks

Narayanan

Linux Platform Engineering

500 Staples Drive, Framingham MA

Office:  508-253-6909 | Mobile: 508-333-4395

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