- dovecot - dovecot.org

[Dovecot] out of memory on dovecot alpha5
by Pavel Volkovitskiy 30 Dec '05

30 Dec '05

Hello Once a day i have these errors in doveecot.log: =========================================== dovecot: Dec 16 14:06:04 Error: auth-worker(default): .Out of memory (Needed 52 bytes) dovecot: Dec 16 14:06:04 Error: auth-worker(default): sql(login,<ip>): Password query failed: MySQL client ran out of memory dovecot: Dec 16 14:06:06 Info: imap-login: Disconnected: user=<login>, method=PLAIN, rip=<ip>, lip=<ip2> dovecot: Dec 16 14:06:06 Error: auth-worker(default): pool_system_malloc(): Out of memory dovecot: Dec 16 14:06:06 Error: child 23022 (auth-worker) returned error 83 (Out of memory) ============================================ And after that nobody can login I do /etc/init.d/dovecot restart and then it's working for a day Before upgrade to alpha5 i was used 0.99.x series without eny errros on this server What can i do to debug this? -- Pavel

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[Dovecot] LDAP authenticated bind support
by J.M. Maurer 30 Dec '05

30 Dec '05

Recently at Better.be we implemented LDAP authenticated bind support for dovecot. A patch against CVS HEAD is attached. I have not tested it against all possible configurations one can use, but the basic operation seems to be right. As documented in the patch, it adds one new option to the dovecot-ldap.conf configuration file: # Set "auth_bind" to "yes" if you want to use "authenticated binds" # as a login validation mechanism. NOTE: the pass_attrs option # will (naturally) be ignored if you enable this auth_bind = yes Authenticated bind support is implemented asynchronously. This involves 2 asynchronous calls: the first being 'ldap_search' to find the dn to bind against and the second being the actual 'ldap_bind' call. I'd love to hear some feedback on this. Regards, Marc Maurer Better.be B.V.

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Re: [Dovecot] dovecot behaving badly after upgrade..
by Adrian Vasile 30 Dec '05

30 Dec '05

wrote it and tested it. now it reconnects to mysql as it should. <snip> loki ~ # cat /usr/local/portage/net-mail/dovecot/files/db-mysql.diff diff -ur dovecot-0.99.14-orig/src/auth/db-mysql.c dovecot-0.99.14/src/auth/db-mysql.c --- dovecot-0.99.14-orig/src/auth/db-mysql.c 2004-12-19 07:25:15.000000000 +0200 +++ dovecot-0.99.14/src/auth/db-mysql.c 2005-12-27 15:43:11.000000000 +0200 @@ -72,6 +72,9 @@ case CR_SERVER_GONE_ERROR: case CR_SERVER_LOST: /* connection lost - try immediate reconnect */ + /* but first close the connection :) */ + if (conn->connected) + mysql_conn_close(conn); if (!mysql_conn_open(conn)) break; if (mysql_query(conn->mysql, query) == 0) { </snip> i suppose that v1alpha5 has the same bug.. addapt to needs Adrian Vasile wrote: > re,re > > I think I found the issue: > in this switch : > if (failed) { > /* query failed */ > switch (mysql_errno(conn->mysql)) { > case CR_SERVER_GONE_ERROR: > case CR_SERVER_LOST: > /* connection lost - try immediate reconnect */ > if (!mysql_conn_open(conn)) > break; > if (mysql_query(conn->mysql, query) == 0) { > failed = FALSE; > break; > } > /* query failed, fallback to error handler */ > default: > i_error("MySQL: Error executing query \"%s\": %s", > query, mysql_error(conn->mysql)); > break; > } > } > if this error occurs then reconnect.. this is true, but > static int mysql_conn_open(struct mysql_connection *conn) > { > if (conn->connected) > return TRUE; > .... > in the conn structure the connected bit is always true I belive. > > May I write the patch ? > > Adrian Vasile wrote: > >> Hi, >> >> It doesn't matter who's fault it is. I run Dovecot with mysql auth and >> it does the same.. >> the idea is that mysql has a timeout for connections so, after a period >> of inactivity it closes the connection. >> I don't know if Dovecot uses what the developers from mysql propose: >> if mysql_ping != ok then reconnect >> I didn't have time to browse the sources. >> >> The lazy work-around I made is modifying the pop3/imap monitor of mon >> and every 15 min, mon logs into dovecot >> with a test account :) >> >> It's the same problem with amavis but that's not necesarly amavis's >> fault but the DBI people. >> >> PS: I run : >> * net-mail/dovecot >> Installed: 0.99.14-r1 >> Homepage: http://dovecot.org/ >> Description: An IMAP and POP3 server written with security >> primarily in mind >> >> * dev-db/mysql >> Installed: 5.0.17 >> Homepage: http://www.mysql.com/ >> Description: A fast, multi-threaded, multi-user SQL >> database server >> >> maybe using pam_mysql would solve this issue.. >> >> daniel petre wrote: >> >>> >>> i dont think its vpopmail's fault, since THIS running version is OKAY: >>> >>> delfix ~ # emerge -s dovecot >>> Searching... >>> [ Results for search key : dovecot ] >>> [ Applications found : 1 ] >>> >>> * net-mail/dovecot >>> Latest version available: 1.0_alpha5 >>> Latest version installed: 0.99.14-r1 >>> Size of downloaded files: 1,236 kB >>> Homepage: http://dovecot.org/ >>> Description: An IMAP and POP3 server written with security >>> primarily in mind >>> License: LGPL-2.1 >>> >>> >>> >>> Timo Sirainen wrote: >>> >>>> On Sun, 2005-12-18 at 02:52 +0200, daniel petre wrote: >>>> >>>>> dovecot: Dec 18 03:42:08 Error: auth(default): vmysql: sql >>>>> error[3]: MySQL server has gone away >>>> >>>> >>>> >>>> >>>> .. >>>> >>>>> anyone encountered this? >>>>> mysql is not away, i edited dovecot.conf carefully. >>>>> what am i missing? >>>> >>>> >>>> >>>> >>>> >>>> That error message is coming from vpopmail libraries, and it looks >>>> like >>>> it at least thinks it can't connect to MySQL. Looks to me like the >>>> problem is in vpopmail's side. There isn't really anything that can be >>>> configured for vpopmail from Dovecot's side. >>>> >>>> >>>> >>> >>> >> >> >> >

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[Dovecot] postfix, dovecot, sasl deliver error
by Tracy Phillips 29 Dec '05

29 Dec '05

Hi, I am receiving an error when trying to send mail. I am using FreeBSD 6 and dovecot 1.0.alpha5 and postfix 2.3-20051223 which includes the dovecot sasl patch. I am getting: Dec 26 17:26:45 example postfix/pipe[612]: DC90D5C30: to=<tep(a)example.com>, relay=dovecot, delay=14, delays=14/0.05/0/0.08, dsn=4.3.0, status=deferred (temporary failure. Command output: Error: net_connect(/var/run/dovecot/auth-master) failed: Permission denied ) This is from dovecot.conf: auth default_with_listener { mechanisms = plain passdb passwd-file { args = /usr/local/etc/dovecot/passwd } userdb passwd-file { args = /usr/local/etc/dovecot/users } socket listen { master { path = /var/run/dovecot/auth-master # # WARNING: Giving untrusted users access to master socket may be a # # security risk, don't give too wide permissions to it! mode = 0666 # # Default user/group is the one who started dovecot-auth (root) user = virtual group = virtual } client { path = /var/spool/postfix/private/auth mode = 0666 } } } and from dovecot-deliver.conf: # UNIX socket path to master authentication server to find users. auth_socket_path = /var/run/dovecot/auth-master From postfix master.cf: # Dovecot LDA dovecot unix - n n - - pipe flags=DRhu user=virtual:virtual argv=/usr/local/libexec/dovecot/deliver -d ${recipient} from postfix main.cf: virtual_mailbox_domains = /usr/local/etc/postfix/vhosts.txt virtual_mailbox_base = /usr/local/var/spool/vmail virtual_mailbox_maps = hash:/usr/local/etc/postfix/vmaps.txt virtual_uid_maps = static:1003 virtual_gid_maps = static:1003 virtual_alias_maps = hash:/usr/local/etc/postfix/valias.txt dovecot_destination_recipient_limit = 1 virtual_transport = dovecot smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination smtpd_sasl_authenticated_header = yes broken_sasl_auth_clients = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth

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[Dovecot] Another Assertion Failure in Current CVS Version
by Todd Burroughs 28 Dec '05

28 Dec '05

This is in the CVS version as of Dec. 12. A user got a few of these: dovecot: Dec 14 15:10:29 Error: 23648 imap(username): mbox sync: UID inserted in the middle of mailbox /mailhome/new/s/h/username/DONE (1591 > 19, seq=19, idx_msgs=1593) dovecot: Dec 14 15:10:33 Error: 23648 imap(username): file mbox-sync-rewrite.c: line 106 (mbox_sync_headers_add_space): assertion failed: (start_pos < data_size) dovecot: Dec 14 15:10:40 Error: child 23648 (imap) killed with signal 6 (gdb) bt full #0 0xffffe410 in ?? () No symbol table info available. #1 0xbffff348 in ?? () No symbol table info available. #2 0x00000006 in ?? () No symbol table info available. #3 0x00005c60 in ?? () No symbol table info available. #4 0xb7ef1d41 in raise () from /lib/tls/libc.so.6 No symbol table info available. #5 0xb7ef3529 in abort () from /lib/tls/libc.so.6 No symbol table info available. #6 0x080a17ba in i_internal_panic_handler ( fmt=0x6 <Address 0x6 out of bounds>, args=0x5c60 <Address 0x5c60 out of bounds>) at failures.c:375 No locals. #7 0x080a1be4 in i_panic ( format=0x80af28c "file %s: line %d (%s): assertion failed: (%s)") at failures.c:173 No locals. #8 0x08074225 in mbox_sync_headers_add_space (ctx=0xbffff6e0, size=4106) at mbox-sync-rewrite.c:99 data_size = Variable "data_size" is not available. (gdb) frame 8 #8 0x08074225 in mbox_sync_headers_add_space (ctx=0xbffff6e0, size=4106) at mbox-sync-rewrite.c:99 99 start_pos = ctx->hdr_pos[MBOX_HDR_X_KEYWORDS] != (size_t)-1 ? (gdb) p start_pos Variable "start_pos" is not available. (gdb) p data_size Variable "data_size" is not available. (gdb) p ctx->hdr_pos[MBOX_HDR_X_KEYWORDS] $1 = 1344 (gdb) p *ctx->header $2 = {data = 0x810d2a0, used = 1395}

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[Dovecot] Wiki Documentation: missing item
by Luigi Rosa 27 Dec '05

27 Dec '05

In the "MainConfig" section of the online documentation (http://wiki.dovecot.org/) one item in the "logging" section is missing. The missing item is "syslog_facility" described in the dovecot-example.conf file. Ciao, luigi -- +--[Luigi Rosa]--

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[Dovecot] Migrating from Courier-IMAP to Dovecot
by Andreas Mimz 27 Dec '05

27 Dec '05

Hi! I'm currently trying to migrate from courier-imapd to dovecot... Unfortunately I'm experiences some difficulties here... Since I don't want any user to notice the change of the server backend I've tried changing the namespace in dovecot.conf to namespace private { separator = . location = maildir:~/Maildir prefix = INBOX. inbox = yes hidden = no } With this setting almost everything works fine! Almost... ;-) Squirrelmail won't show 'INBOX' on the left side of the folder tree... If I configure dovecot without the 'INBOX.' prefix it works fine in Squirrelmail, except that all other eMail clients show all sub-folders as a sub-folder of root and not the inbox... root \- inbox \- sent \- trash \- drafts \- private \- spam instead of root \- inbox | \- sent | \- trash | \- drafts | \- private | \- spam any Idea what could be wrong? I've read the wiki about the courier-migration and also tried the conversion script ... but something is wrong I'm afraid... thanks in advance, Andreas

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[Dovecot] dovecot behaving badly after upgrade..
by daniel petre 27 Dec '05

27 Dec '05

i upgraded dovecot from 0.99 to the last version and it doesnt seem to work anymore.. im using vpopmail userdb and i get this in the logs : dovecot: Dec 18 03:42:08 Info: auth(default): client in: AUTH 1 PLAIN service=POP3 lip=81.x.x.x rip=81.x.x.x resp= dovecot: Dec 18 03:42:08 Info: auth(default): client out: CONT 1 dovecot: Dec 18 03:42:08 Info: auth(default): client in: CONT 1 AGRhbmlAbGludXhzb2x1dGlvbnMucm8AcG9jcG9j dovecot: Dec 18 03:42:08 Error: auth(default): vmysql: sql error[3]: MySQL server has gone away dovecot: Dec 18 03:42:08 Info: auth(default): vpopmail(dani(a)domain,81.x.x.x): unknown user dovecot: Dec 18 03:42:09 Info: auth(default): client out: FAIL 1 user=dani@domain dovecot: Dec 18 03:42:09 Info: auth(default): client in: AUTH 2 PLAIN service=POP3 lip=81.x.x.x rip=81.x.x.x resp=AGRhbmlAbGludXhzb2x1dGlvbnMucm8AcG9jcG9j anyone encountered this? mysql is not away, i edited dovecot.conf carefully. what am i missing? thanks -- Daniel Petre System Administrator Tech Support Coordinator ............................................................................. RCS & RDS Pitesti Tel.: +40348.400.401 Fax: +40348.400.441 http://www.rcs-rds.ro ............................................................................. Privileged/Confidential Information may be contained in this message. If you are not in the addresses indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. In such a case, you should destroy this message and kindly notify the sender by reply e-mail.

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[Dovecot] inbox problems when moving from server to server
by Eric S. Johansson 27 Dec '05

27 Dec '05

this is probably an FAQ but I moved all the mailboxes from a gentoo server to an ubuntu one and all old inbox messages "disappeared" for. New messages appear and can be read, deleted etc. the old messages can still be found in the Maildir/cur directory like they were on the old mail server. Ownership was changed to user:user and is 600 permissions. Dovecot version: 0.99.14-1ubuntu1 all other mailboxes are fine, all messages visible as far as we can tell. ideas?

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[Dovecot] dovecot and virtual mailbox - suggestions please
by David Bain 26 Dec '05

26 Dec '05

I've setup postfix to delivered my mail to a maildir located at /var/spool/virtual_mailboxes/mydomain.com/myuser My postgresql database called 'mails' has a user table setup as follows: CREATE TABLE users ( userid VARCHAR(128) NOT NULL, password VARCHAR(128), realname VARCHAR(128), uid INTEGER NOT NULL, gid INTEGER NOT NULL, home VARCHAR(128), mail VARCHAR(255), PRIMARY KEY (userid) ); What would the query look like in my dovecot-pgsql.conf file to retrieve the appropriate INBOX information? mine currently looks like this. user_query = SELECT '/var/spool/virtual_mailboxes/'||home AS home, uid, gid FROM users WHERE userid = '%u' The user authenticates fine via pop, yet I keeping getting the following error. -*ERR No INBOX for user*

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