Hi, After reading this, I have some questions about how this will be related to upstream in the longterm development? I know it's a vague question but I was curious how Cyrus/CMU is responding to this? Thanks, Scott On Dec 7, 2009, at 10:32 AM, Henrique de Moraes Holschuh wrote: > This is a general warning to those using Debian Squeeze, and Debian Sid. > > Debian Etch and Debian Lenny users are NOT affected. > > The IANA port allocated for ManageSieve is 4190/tcp, and the old port used > by timsieved and other managesieve software in many distros (2000/tcp) is > allocated for Cisco SCCP usage, according to the IANA registry[1]. > > Starting with the version 4.38 of the Debian "netbase" package, the "sieve" > service will be moved from port 2000 to port 4190 in the /etc/services file. > > Any installs which used the "sieve" service name instead of a numeric port > number will switch to the new port number as soon as the services are > restarted/reloaded, and in some cases, immediately after /etc/services is > updated. > > This will affect Cyrus IMAP. This may also affect other sieve-enabled > software such as DoveCot. > > In order to avoid downtime problems, mail cluster administrators using > Debian are urged to verify their Cyrus (and probably also DoveCot) installs, > and take measures to avoid services moving from port 2000/tcp to port > 4190/tcp by surprise in either servers or clients. > > It is worth noting that: > > 1. /etc/services will only be automatically updated if you never made any > modifications to it. Otherwise, you will be presented with a prompt by ucf > or dpkg asking you about the changes. > > 2. You can edit /etc/services and change the sieve port back to 2000 if you > want (this is not recommended, though). > > 3. You can edit /etc/cyrus.conf and any other relevant config files for your > mail/webmail cluster (e.g. on the sieve web frontends) ahead of time to > force them all to a static port number. > > 4. You can configure cyrus master to listen on *both* ports (2000 and 4190) > at the same time, and thus avoid the problem entirely. This also allows for > a much more smooth migration from port 2000 to port 4190. > > [1] http://www.iana.org/assignments/port-numbers > > -- > "One disk to rule them all, One disk to find them. One disk to bring > them all and in the darkness grind them. In the Land of Redmond > where the shadows lie." -- The Silicon Valley Tarot > Henrique Holschuh > ---- > Cyrus Home Page: http://cyrusimap.web.cmu.edu/ > Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki > List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html > > > !DSPAM:4b1d4bf5162281804284693! > > ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
