Hello, I've been trying to setup GSSAPI in postfix via cyrus-sasl. The service principal is configured and so is sasl2/smtpd.conf. All I get from the postfix log file is that the GSSAPI auth failed and that the minor error code was Success.
Success as an error code doesn't leave much to go on. log_level: 7 did nothing to produce more verbose output. How do I debug this? Is there a configuration flag to bring out trace information? Perhaps postfix can be recompiled with some kind of SASL debug flag? I guess the last option would be to use gdb (already tried strace) but then I would need to know what to look for. Any help is appreciated. Thanks, Kacper log/mailog: Aug 22 08:57:10 srv postfix/smtpd[15965]: xsasl_cyrus_server_first: decoded initial response `?????*?H??????? Aug 22 08:57:10 srv postfix/smtpd[15965]: warning: SASL authentication failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Success) Aug 22 08:57:10 srv postfix/smtpd[15965]: warning: unknown[192.168.0.150]: SASL GSSAPI authentication failed: authentication failure Aug 22 08:57:10 srv postfix/smtpd[15965]: > unknown[192.168.0.150]: 535 5.7.8 Error: authentication failed: authentication failure sasl2/smtpd.conf: pwcheck_method: saslauthd mech_list: plain login gssapi keytab: /etc/postfix/postfix.keytab log_level: 7
