Exact same error here in 2019. I set Windows Server 2019 up, default AD DS & AD CS (for TLS).
Clients tried: Ubuntu 18.04: libsasl2-modules-gssapi-mit:amd64 2.1.27~101-g0780600+dfsg-3ubuntu2 Alpine Edge: cyrus-sasl-gssapiv2-2.1.27-r1 Have anyone tried asking in Cyrus SASL mailing list? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1015819 Title: sb_sasl_generic_pkt_length: received illegal packet length when using Active Directory and ldapsearch and sasl with ssl or tls To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cyrus-sasl2/+bug/1015819/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs