cyradm fails with "cyradm: cannot connect to server"

[Michael Beier]

Prerequesites: fresh installation of cyrus-imapd-2.4 and cyrus-admin-2.4.
Trying to connect to the locally running imap server using cyradm provided by cyrus-admin-2.4 fails: the command "cyradm --server <MYHOST>" only produces the error message: "cyradm: cannot connect to server". According to a tcpdump and the mail.log, cyradm tries to connect, but gives up immediately.

Oct 14 14:30:21 virtual cyrus/imap[8593]: accepted connection
Oct 14 14:30:21 virtual cyrus/imap[8593]: Connection reset by peer, closing connection

Analyzing the tcpdump shows, that imapd answers correct (* OK [CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE AUTH=PLAIN SASL-IR] <MYHOST> Cyrus IMAP v2.4.12-Debian-2.4.12-2 server ready), but the client does not send any data.

If I run the same command on a remote server running debian squeeze, cyradm behaves as expected and prompts for the imap password. Trying the same vice versa and connecting with ubuntu cyradm to debian imapd does not work too, so the error seems to be in ubuntu cyradm.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: cyrus-admin-2.4 2.4.12-2
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic x86_64
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
Date: Sun Oct 14 14:11:28 2012
InstallationMedia:

PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm-color
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: cyrus-imapd-2.4
UpgradeStatus: No upgrade log present (probably fresh install)

[Michael Beier (ebowyqq)]

Today I did a fresh install of Ubuntu 12.04.1 LTS - and now the problem is gone ..