> On 15/08/2019 00:34 Eugene via dovecot <dovecot@dovecot.org> wrote: > > > The next combination of parameters makes 100% LDAP connections unsuccessful > (the log snippet form the previous mail). > sasl_bind = yes > sasl_mech = gssapi > tls = yes > > Looks like this combination is utterly incorrect and should be prohibited > (tls must not be used when mech is gssapi). > https://lists.fedorahosted.org/archives/list/sssd-us...@lists.fedorahosted.org/message/G7S2TOFDCM62ZUHIBWYVZIEVYXO3KYAI/ > > With `tls = no` errors `encoded packet size too big` becomes sporadic, but > still heart auth orepations performance. > May be there are two different problems. >
Does the "encoded packet size too big" coincide with LDAP server connection failure? Aki > Has someone encountered this problem before? > How can I help to facilitate the issue debugging? > > [I] net-mail/dovecot > Installed versions: 2.3.7.1(01:58:12 08/14/19)(bzip2 caps ipv6 kerberos > ldap libressl lua lz4 lzma pam postgres sieve sqlite tcpd zlib -argon2 -doc > -lucene -managesieve -mysql -selinux -solr -static-libs -suid -textcat > -vpopmail) > > On 8/15/19 12:01 AM, Eugene wrote: > > Hello! > > > > Dovecot uses it's own SASL implementation, doesn't it? > > > > Aug 14 23:45:23 example.com auth[10428]: GSSAPI client step 1 > > Aug 14 23:45:23 example.com auth[10428]: encoded packet size too big > > (813804546 > 65536) > > Aug 14 23:45:23 example.com dovecot[10085]: auth-worker(10428): Error: > > LDAP: Can't connect to server: ldap://ipa2.example.com > > Aug 14 23:45:23 example.com dovecot[10085]: auth: Error: auth worker: > > Aborted USER request for eugene: Lookup timed out > > Aug 14 23:45:23 example.com dovecot[10085]: imap: Error: auth-master: > > login: request [3847225345]: Login auth request failed: Internal auth > > failure (auth connected 60000 msecs ago, request took 60000 msecs, > > client-pid=10362 client-id=1) > > > > Looks like cyrus-sasl encountered same problem earlier. > > https://lists.andrew.cmu.edu/pipermail/cyrus-sasl/2017-March/003001.html > > > > I never have such an issue with ldapsearch. So, I assume there is a similar > > problem in Dovecot SASL implementation. > > > > -- > Eugene Bright > IT engineer > Tel: + 79257289622
