October 2007 - dovecot

[Dovecot] dovecot-1.0.3 & apacheds ldap
by sergey ivanov 31 Oct '07

31 Oct '07

I have problem with dovecot-1.0.3 and apacheds ldap server. If I change just uris in dovecot-ldap.conf to point to fedora-ds server, everything works O.K. I've tried with apacheds ldap server versions 1.0.2 and 1.5.0 command line search with parameters taken from dovecot.debug log gives me all needed attributes. Comments and help welcome. Here is my data: --- # /opt/dovecot/sbin/dovecot -n # 1.0.3: /opt/dovecot/etc/dovecot.conf log_path: /tmp/dovecot.log info_log_path: /tmp/dovecot.debug protocols: pop3 pop3s imap imaps ssl_cert_file: /etc/ssl/parkheights.cert ssl_key_file: /etc/ssl/parkheights.key login_dir: /opt/dovecot/var/run/dovecot/login login_executable(default): /opt/dovecot/libexec/dovecot/imap-login login_executable(imap): /opt/dovecot/libexec/dovecot/imap-login login_executable(pop3): /opt/dovecot/libexec/dovecot/pop3-login mail_extra_groups: mail mail_location: maildir:/var/spool/imap/%n/.imap mail_debug: yes mail_executable(default): /opt/dovecot/libexec/dovecot/imap mail_executable(imap): /opt/dovecot/libexec/dovecot/imap mail_executable(pop3): /opt/dovecot/libexec/dovecot/pop3 mail_plugin_dir(default): /opt/dovecot/lib/dovecot/imap mail_plugin_dir(imap): /opt/dovecot/lib/dovecot/imap mail_plugin_dir(pop3): /opt/dovecot/lib/dovecot/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: ldap args: /opt/dovecot/etc/dovecot-ldap.conf userdb: driver: ldap args: /opt/dovecot/etc/dovecot-ldap.conf userdb: driver: prefetch socket: type: listen master: path: /opt/dovecot/var/run/dovecot/auth-master mode: 384 user: vmail group: vmail --- # grep -v '#' /opt/dovecot/etc/dovecot-ldap.conf |grep -v '^\s*$' hosts = 192.168.10.43:389 dn = uid=admin,ou=system dnpass = Ahma3zoc sasl_bind = no auth_bind = no ldap_version = 3 base = ou=people,dc=parkheights,dc=dyndns,dc=org user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid user_filter = (&(objectClass=posixAccount)(uid=%Ln)) pass_attrs = uid=user,gidNumber=userdb_gid,userPassword=password,homeDirectory=userdb_home,uidNumber=userdb_uid default_pass_scheme = MD5 --- # tail -5 /tmp/dovecot.debug dovecot: Aug 03 08:07:10 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP secured lip=127.0.0.1 rip=127.0.0.1 resp=AHNlc(here_also_skipped_something)3N1Pg== dovecot: Aug 03 08:07:10 Info: auth(default): ldap(seriv,127.0.0.1): pass search: base=ou=people,dc=parkheights,dc=dyndns,dc=org scope=subtree filter=(&(objectClass=posixAccount)(uid=seriv)) fields=uid,gidNumber,userPassword,homeDirectory,uidNumber dovecot: Aug 03 08:07:10 Info: auth(default): ldap(seriv,127.0.0.1): result: uid(user)=seriv gidnumber(?unknown?)= userpassword(?unknown?)= homedirectory(?unknown?)= uidnumber(?unknown?)= dovecot: Aug 03 08:07:12 Info: auth(default): client out: FAIL 1 user=seriv temp dovecot: Aug 03 08:10:10 Info: imap-login: Disconnected: Inactivity: user=<seriv>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured --- # tail -3 /tmp/dovecot.log dovecot: Aug 03 08:06:53 Warning: auth(default): Killed with signal 15 dovecot: Aug 03 08:06:53 Warning: Killed with signal 15 dovecot: Aug 03 08:07:10 Error: auth(default): ldap(seriv,127.0.0.1): No password in reply --- here is the snippet from apacheds debug log: --- message Id : 2 Search Request Base Object : 'ou=people,dc=parkheights,dc=dyndns,dc=org' Scope : whole subtree Deref Aliases : never Deref Aliases Size Limit : no limit Time Limit : no limit Types Only : false Filter : '(&(objectClass=posixAccount)(uid=seriv))' Attributes : gidNumber, uid, userPassword, homeDirectory, uidNumber baseDn : 'ou=people,dc=parkheights,dc=dyndns,dc=org' filter : '(& (objectClass=posixAccount) (uid=seriv) ) ' scope : whole subtree typesOnly : false no limit Time Limit : no limit Deref Aliases : never Deref Aliases attributes : 'gidNumber', 'uid', 'userPassword', 'homeDirectory', 'uidNumber' message Id : 2 Search Result Entry Object Name : 'uid=seriv,ou=people,dc=parkheights,dc=dyndns,dc=org' Attributes Attributes Attribute id : 'uid', Values : ['seriv'] Attribute id : 'gidnumber', Values : ['1927'] Attribute id : 'userpassword', Values : [0x7B 0x4D ... (skipped some bytes here) ... 0x3D 0x3D ] Attribute id : 'homedirectory', Values : ['/var/spool/imap/seriv'] Attribute id : 'uidnumber', Values : ['1001']

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[Dovecot] Sometimes Dovecot v1.0.3 does not accept new connections
by Steffen Kaiser 30 Oct '07

30 Oct '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, occasionally Dovecot stops to accept new connections. Already existing ones do function properly. Strace'ing dovecot-auth reveals that it is running and is authentificating users, the logfile logs new connections. However, lots of other connects just stall, before the IMAP server responds with the greeting. My user backend is a LDAP server. I've sniffed the interface, but I also don't see numerous connection attempts, so I suppose, that there is no DoS attack running. The logfile contains no warning or error except: dovecot: Oct 17 15:34:44 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:34:49 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:34:52 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:02 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:05 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:12 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:19 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:20 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:25 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:26 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:27 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:27 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:41 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:42 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:47 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:49 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:49 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:50 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:35:56 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 dovecot: Oct 17 15:36:03 Warning: auth(default): Growing pool 'plain_auth_request' with: 2048 Does somebody has an idea, where to go to look into the issue? Bye, - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iQEVAwUBRxYYSi9SORjhbDpvAQL8JQf+KWGlq9ic5ufFKcc/hZu6ZUQCpvDTzQHy YGyCFWXNsMoumMEXieiUw6plGDqEWajrhuDNbWHLtc8NPykpopT29lBaxIL2up1R uY0FV02AIjtNbexoRnC9Fk+0z+keDBb9DtrgHDZeNeK+vizxFQeLIM2xtWgXky9t MjoUVYeuXPAb8kZPm3ryW10SadDIJOi7mmnPZFWscaBgN/3Pvf9/oakAaEJyezFj HJY3bYVj2SeblVnn8xFXxszFTV1I3IOM/vIQAtA6gJ4p5D5xXabGzyERgSck1jz6 OtdUIyLJmLdFq5jRdP2FtYyLyOdb27z7krxfFGXeAMbHxf3TCefaiA== =TVVY -----END PGP SIGNATURE-----

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[Dovecot] .dovecot.sieve not being read
by ding dong 30 Oct '07

30 Oct '07

Mail seems to be delivered to INBOX without reading what is in .dovecot.sieve # cat /home/vmail/user(a)example.com/.dovecot.sieve if exists "From" { discard; stop; } # ls -alh /home/vmail/user(a)example.com/.dovecot.sieve -rw-r--r-- 1 vmail vmail 41B Oct 29 01:26 .dovecot.sieve # tail /var/log/dovecot-deliver.log deliver(user(a)example.com): Oct 29 01:33:14 Info: msgid=< 47253857.20500(a)example.com>: saved mail to INBOX # tail /var/log/maillog Oct 29 01:33:14 freebsdserver1 dovecot: auth-worker(default): sql( user(a)example.com) SELECT maildir AS home, uid AS uid, gid AS gid FROM virtual_mailboxes WHERE user = 'user(a)example.com' AND enabled = TRUE LIMIT 1 Oct 29 01:33:14 freebsdserver1 dovecot: auth(default): master out: USER 1 user(a)example.com home=user(a)example.com/uid=1002 gid=1002 Oct 29 01:33:14 freebsdserver1 postfix/pipe[25035]: 8CB9F1CC2A: to=< user(a)example.com>, relay=dovecot, delay=0.08, delays=0.04/0.02/0/0.03, dsn= 2.0.0, status=sent (delivered via dovecot service) # dovecot --version 1.0.5 # dovecot -n # 1.0.5: /usr/local/etc/dovecot.conf login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login verbose_proctitle: yes first_valid_gid: 0 mail_extra_groups: vmail mail_location: maildir:/home/vmail/%h imap_client_workarounds: delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep auth default: mechanisms: plain login verbose: yes debug: yes passdb: driver: pam passdb: driver: sql args: /usr/local/etc/dovecot-sql.conf userdb: driver: passwd userdb: driver: sql args: /usr/local/etc/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail group: vmail

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[Dovecot] 1.1Beta5 Issue
by Jeff Grossman 30 Oct '07

30 Oct '07

I installed 1.1Beta 5 this weekend. I had no problems at all yesterday using Thunderbird. I started reading my mail with Squirrelmail this morning and everything was going pretty smooth. I tried to delete a daily e-mail I receive from careerbuilder.com and the IMAP process shot up to 99.9% and I was not able to do anything in Squirrelmail. I killed that process and tried it again just to be sure what it was. And it did it again. I can delete any other message with no problems, just that one causes me issues. I am not sure if Thunderbird is the same, I will have to wait until I get home tonight. If there is any troubleshooting you would like me to do, please let me know. Jeff

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Re: [Dovecot] 1.1Beta5 Issue
by Jeff Grossman 30 Oct '07

30 Oct '07

> On Mon, 2007-10-29 at 08:08 -0700, Jeff Grossman wrote: >> I installed 1.1Beta 5 this weekend. I had no problems at all yesterday >> using Thunderbird. I started reading my mail with Squirrelmail this >> morning and everything was going pretty smooth. I tried to delete a >> daily >> e-mail I receive from careerbuilder.com and the IMAP process shot up to >> 99.9% and I was not able to do anything in Squirrelmail. > > Thanks, fixed: http://hg.dovecot.org/dovecot/rev/ac0e7f713d70 Yup, appears to be working correctly now. Thanks for the quick fix. Jeff

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[Dovecot] time going back
by zbigniew szalbot 29 Oct '07

29 Oct '07

Hi all, Sorry if this is trivial. I am just concerned. In Poland we will be putting the clocks one hour behind (back) on Sunday. I once saw dovecot killing itself because I manually adjusted the clock in the past. Will it not happen in this case? Thanks for your ideas. Zbigniew Szalbot

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[Dovecot] Static home while using LDAP
by David Bosque 29 Oct '07

29 Oct '07

Hello all, I've been googling for a workaround for this for nearly a week to no avail and I hope someone in the list can shed some light on it. I have downloaded and compiled dovecot 1.0.5 and applied the quota-warning to it. I have configured everything and it's working wonderfully, even the lda with the sieve plugin. This is my current relevant configuration: userdb static{ args = uid=501 gid=12 home=/var/mail/buzones/%d/%n allow_all_users=yes } passdb ldap { args = /etc/dovecot/dovecot-ldap.conf } However, I need to obtain some more data from LDAP, so I need to switch to an ldap userdb, but want to keep the home as it is in the static configuration and not having to store it in LDAP. Is it possible to use a fixed home (as in the static userdb) while using an ldap userdb? I am looking for something similar to user_global_uid and user_global_gid but for the "home". If not, is it possible to fix or append something to the values in the user_attrs (like the following)? user_attrs = [whatever_i_want_to_append]uid=home uidNumber=uid,gidNumber=gid Regards, David Bosque

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[Dovecot] v1.0.7 released
by Timo Sirainen 29 Oct '07

29 Oct '07

http://dovecot.org/releases/1.0/dovecot-1.0.7.tar.gz http://dovecot.org/releases/1.0/dovecot-1.0.7.tar.gz.sig Almost missed this one. I had already fixed it in v1.1 tree, but forgot to fix in v1.0 tree. - deliver: v1.0.6's "From " line ignoring could have written to a bad location in stack, possibly causing problems.

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Re: [Dovecot] fallback for proxy?
by Bill Boebel 29 Oct '07

29 Oct '07

On Sunday, October 28, 2007 8:32am, Cor Bosman <cor(a)xs4all.nl> said: > Is it possible somehow to configure a fallback for a failed proxy? I am using > sql based proxying through dovecot, but it would be nice if you can fallback > to another host if the proxy destination server is down. High availability > and all.. We do this in our system by having a separate monitoring server update the IP in MySQL when a backend server fails. Bill

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[Dovecot] Resource temporarily unavailable
by karpi.lists＠email.cz 29 Oct '07

29 Oct '07

Hello, Im using dovecot for ages and im happy.. but at now strange things happens: mutt returns: Error talking to localhost (Connection reset by peer) so i started telnet: alnagon ~ % telnet localhost 143 Trying 127.0.0.1... Connected to alnagon.localnet.cz. Escape character is '^]'. * OK Dovecot ready. 1 login karpi blablabla 1 OK Logged in. Connection closed by foreign host. Last line "Connection closed" appears immediatelly after logging.. log says: Oct 27 11:20:50 alnagon dovecot: imap-login: Login: user=<karpi>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured Oct 27 11:20:51 alnagon dovecot: IMAP(karpi): setuid(1000) failed: Resource temporarily unavailable Oct 27 11:20:51 alnagon dovecot: child 8537 (imap) returned error 89 my configuratilon runs on gentoo desktop and looks like: alnagon ~ # dovecot -n # 1.0.3: /etc/dovecot/dovecot.conf protocols: imap ssl_cert_file: /etc/ssl/dovecot/server.pem ssl_key_file: /etc/ssl/dovecot/server.key login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/imap-login login_processes_count: 1 mail_extra_groups: mail mail_debug: yes auth default: passdb: driver: pam args: * userdb: driver: passwd very thanks for any hint..

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