Re: IMAP connections with ".eml" in the username - bot attack.
James Brown writes: We are seeing lots of IMAP login attempts like this: dovecot[363]: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=197.255.60.118, dovecot[363]: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=37.235.28.229, etc. Is anyone else experiencing this? How is such an attack is supposed to ever succeed? What are they trying to accomplish? Haven't seen it. I agree with another poster -- probably a spammer screwed up their spamware configuration. Any ideas on how to mitigate it? Mitigate what? Even by your account, this won't get them anywhere, unless it's so fast and heavy, it's DoS'ing your system. Other than that, they're just bloating your logs, nothing more. If you want to pre-empt this via firewall, you'll need to get extremely lucky to characterise these IPs (a sample of 2 is not enough) in such a way as to able to formulate a firewall rule. Mostly likely, this is a rented botnet. If you somehow figure out an oracular rule to discern bot from some user road-warrior *before* they connect, give me a call. Sean Greenslade writes: Here's a fun laugh I found in one of my webserver logs: 1446098745 218.249.219.2 "GET http://www.sciencedirect.com/science/book/9780123525512"; 400 425 "" "Mozilla/4.0 (compatible; MSIE 4.01; Windows 95)" Not my website, nothing even close to that url is hosted on that server. Common proxy target. They're testing whether your web server will support anonymous web proxying. Almost exclusively from China. Joseph Tam
Re: SMTP and IMAP authentication critically fails out of the blue
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Tue, 14 Nov 2017, Felix Plapper wrote: Mail.errNov 13 23:59:06 webdev dovecot: auth: Error: PLAIN(acco...@domain2.com, XXX.XXX.XXX.XXX,): Request 29154.1 timed out after 150 secs, state=1 looks like the connection to your passdb (mysql) is not working. - -- Steffen Kaiser -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQEVAwUBWgqHA3z1H7kL/d9rAQL0kAf/eWMYH6ae6VpVVYyyxTSL3Mv+0iDTXHmV nu/Hi0ldkMgnW7d8hOwLKwxr8a1jOAQwxnWhCNMtbbspC05lrqPN1u2/nd+FqLhE G+vAcAaXvkYTpFqKQsQ8tYJuSBuVJ2zx19+uG48os8oPt6lISQ7ml1s9LTHRVZGe btXVPWHkwh3tWKUSuf+/q3lEGr2MDDuGDkfw6u6ykqWeNifDxBFBNTJYbGl1UeDB sTB0tj7rpKmwy0JR9r1U9QR/MFWT9LlwCfOZqH7Mym/9AJkPDU6ewcrTPOFkt7bF sI+GsmPwJ7+7rU4+hgW8em+wRflphMF8J3BAygVSNWwOJUyZpCiubQ== =NMr4 -END PGP SIGNATURE-
Re: Building dovecot 2.2.33.2 is broken with uclibc-ng
Am Mon, 13 Nov 2017 15:40:14 -0500 schrieb Josef 'Jeff' Sipek: > What happens if in dovecot's byteorder.h you add this before line 30: > > #undef bswap_8 > #undef bswap_16 > #undef bswap_32 > #undef bswap_64 > > Hopefully that does it. Hi Jeff, adding these four lines fixes the build error, thanks! Regards, Bernd
SMTP and IMAP authentication critically fails out of the blue
Hello Community and first things First:
dovecot --version2.2.9dovecot -n# 2.2.9: /etc/dovecot/dovecot.conf# OS: Linux
3.13.0-042stab125.5 x86_64 Ubuntu 14.04.5 LTSauth_mechanisms = plain logindict
{ sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf}listen =
*,[::]log_timestamp = "%Y-%m-%d %H:%M:%S "login_log_format_elements = user=<%u>
method=%m rip=%r lip=%l mpid=%e %c %kmail_fsync = alwaysmail_home =
/var/vmail/%d/%nmail_location = maildir:~/mail_nfs_index = yesmail_nfs_storage
= yesmail_plugins = quota aclmanagesieve_notify_capability =
mailtomanagesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy
include variables body enotify environment mailbox date ihavemmap_disable =
yesnamespace { list = yes location = maildir:%%h/:INDEXPVT=~/Shared/%%u
prefix = Shared/%%u/ separator = / subscriptions = yes type =
shared}namespace inbox { inbox = yes location = mailbox Archiv {
special_use = \Archive } mailbox Archive { auto = subscribe special_use
= \Archive } mailbox Archives { special_use = \Archive } mailbox
"Deleted Messages" { special_use = \Trash } mailbox Drafts { auto =
subscribe special_use = \Drafts } mailbox Entwürfe { special_use =
\Drafts } mailbox "Gelöschte Objekte" { special_use = \Trash } mailbox
Gesendet { special_use = \Sent } mailbox Junk { auto = subscribe
special_use = \Junk } mailbox Papierkorb { special_use = \Trash }
mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent
Messages" { special_use = \Sent } mailbox Trash { auto = subscribe
special_use = \Trash } prefix = separator = /}passdb { args =
/etc/dovecot/dovecot-mysql.conf driver = sql}plugin { acl = vfile acl_anyone
= allow acl_shared_dict = file:/var/vmail/shared-mailboxes.db quota =
dict:User quota::proxy::sqlquota quota_rule2 = Trash:storage=+100%% sieve =
/var/vmail/sieve/%u.sieve sieve_after = /var/vmail/sieve/global.sieve
sieve_max_script_size = 1M sieve_quota_max_scripts = 0
sieve_quota_max_storage = 0}protocols = imap sieve lmtp pop3service auth {
unix_listener /var/spool/postfix/private/auth_dovecot { group = postfix
mode = 0660 user = postfix } unix_listener auth-master { mode = 0600
user = vmail } unix_listener auth-userdb { mode = 0600 user = vmail }
user = root}service dict { unix_listener dict { group = vmail mode =
0660 user = vmail }}service lmtp { unix_listener
/var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600
user = postfix } user = vmail}service managesieve-login { inet_listener
sieve { port = 4190 } process_min_avail = 2 service_count = 1 vsz_limit
= 128 M}service managesieve { process_limit = 256}ssl_cert =
): Request 29154.1 timed out after 150 secs,
state=1###
Mail.logNov 13 23:27:54 webdev dovecot: auth: Error:
LOGIN(acco...@domain1.com,IP.IP.IP.IP,): Request 28118.1
timed out after 150 secs, state=1Nov 13 23:27:57 webdev dovecot: auth: Error:
PLAIN( acco...@domain2.com,XXX.XXX.XXX.XXX,): Request 28120.1
timed out after 150 secs, state=1Nov 13 23:28:24 webdev dovecot: imap-login:
Disconnected: Inactivity during authentication (disconnected while
authenticating, waited 180 secs): user=<>, method=LOGIN, rip=ClientIP,
lip=ServerIP, TLS: Disconnected, TLSv1.2 with cipher DHE-RSA-AES128-GCM-SHA256
(128/128 bits) [...]Nov 13 23:47:15 webdev dovecot: imap-login: Aborted login
(no auth attempts in 0 secs): user=<>, rip=84.119.151.17,
lip=62.75.185.32###
I did not change anything on my client nor serverside setup and i suddenly
could not reach the Mailserver anymore. Obviously I can reach the Server using
SSH or HTTP.
I hope I provided all infos you need to help me in this situation. And am
grateful for every hint to solve this
Note: Older mailinglist threads did not help because a link which solved a
similar case is not available anymore.plus I tried to make the given pieces of
information structured using styles. Maybe it gets delivered,displayed and
enhances the ease of reading.
Re: Building dovecot 2.2.33.2 is broken with uclibc-ng
On Mon, Nov 13, 2017 at 20:07:00 +0100, Bernd Kuhls wrote:
> Hi,
>
> this commit
> https://github.com/dovecot/core/commit/c9d76e2baf653fa5504d6849e5c1aae32eff3c53
>
> added code which can not be compiled with uclibc-ng 1.0.26 using buildroot:
Hrm... ok.
It'll be probably faster for you to try a test build instead of me setting
up buildroot...
What happens if in dovecot's byteorder.h you add this before line 30:
#undef bswap_8
#undef bswap_16
#undef bswap_32
#undef bswap_64
Hopefully that does it.
Jeff.
>
> make[3]: Entering directory
> '/home/bernd/buildroot/br4/output/build/dovecot-2.2.33.2/src/lib-test'
> /bin/bash ../../libtool --tag=CC --mode=compile
> /home/bernd/buildroot/br4/output/host/bin/i586-buildroot-linux-uclibc-gcc
> -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-charset
> -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -std=gnu99
> -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -Wall
> -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith
> -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime
> -Wstrict-aliasing=2
> -I/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include
> -c -o test-common.lo test-common.c
> libtool: compile:
> /home/bernd/buildroot/br4/output/host/bin/i586-buildroot-linux-uclibc-gcc
> -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-charset
> -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -std=gnu99
> -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -Wall -W
> -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts
> -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2
> -I/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include
> -c test-common.c -fPIC -DPIC -o .libs/test-common.o
> In file included from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap-common.h:34:0,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap.h:55,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/byteswap.h:22,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
> from ../../src/lib/lib.h:11,
> from test-common.c:3:
> ../../src/lib/byteorder.h:32:24: error: expected identifier or '(' before
> '__extension__'
> static inline uint16_t bswap_16(uint16_t in);
> ^
> In file included from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59:0,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
> from ../../src/lib/lib.h:11,
> from test-common.c:3:
> ../../src/lib/byteorder.h:92:24: error: redefinition of '__bswap_64'
> static inline uint64_t bswap_64(uint64_t in)
> ^
> In file included from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap.h:55:0,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/byteswap.h:22,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
> from ../../src/lib/lib.h:11,
> from test-common.c:3:
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap-common.h:75:1:
> note: previous definition of '__bswap_64' was here
> __bswap_64 (__uint64_t __bsx)
> ^~
> In file included from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59:0,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
> from
> /home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
> from ../../s
Building dovecot 2.2.33.2 is broken with uclibc-ng
Hi,
this commit
https://github.com/dovecot/core/commit/c9d76e2baf653fa5504d6849e5c1aae32eff3c53
added code which can not be compiled with uclibc-ng 1.0.26 using buildroot:
make[3]: Entering directory
'/home/bernd/buildroot/br4/output/build/dovecot-2.2.33.2/src/lib-test'
/bin/bash ../../libtool --tag=CC --mode=compile
/home/bernd/buildroot/br4/output/host/bin/i586-buildroot-linux-uclibc-gcc
-DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-charset
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -std=gnu99
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -Wall -W
-Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts
-Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2
-I/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include
-c -o test-common.lo test-common.c
libtool: compile:
/home/bernd/buildroot/br4/output/host/bin/i586-buildroot-linux-uclibc-gcc
-DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-charset
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -std=gnu99
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -Wall -W
-Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts
-Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2
-I/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include
-c test-common.c -fPIC -DPIC -o .libs/test-common.o
In file included from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap-common.h:34:0,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap.h:55,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/byteswap.h:22,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
from ../../src/lib/lib.h:11,
from test-common.c:3:
../../src/lib/byteorder.h:32:24: error: expected identifier or '(' before
'__extension__'
static inline uint16_t bswap_16(uint16_t in);
^
In file included from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59:0,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
from ../../src/lib/lib.h:11,
from test-common.c:3:
../../src/lib/byteorder.h:92:24: error: redefinition of '__bswap_64'
static inline uint64_t bswap_64(uint64_t in)
^
In file included from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap.h:55:0,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/byteswap.h:22,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
from ../../src/lib/lib.h:11,
from test-common.c:3:
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap-common.h:75:1:
note: previous definition of '__bswap_64' was here
__bswap_64 (__uint64_t __bsx)
^~
In file included from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/endian.h:59:0,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/waitstatus.h:72,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/stdlib.h:41,
from ../../src/lib/lib.h:11,
from test-common.c:3:
../../src/lib/byteorder.h:104:24: error: redefinition of '__bswap_32'
static inline uint32_t bswap_32(uint32_t in)
^
In file included from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/bits/byteswap.h:55:0,
from
/home/bernd/buildroot/br4/output/host/i586-buildroot-linux-uclibc/sysroot/usr/include/byteswap.h:22,
from
/home/bernd/buildroot/br4/output/host/i586-buil
Carbon_name path hardcoded
Hello,
I am setting up the imap_stats for dovecot and stumb up on a problem with
carbon_name setup.
const char *prefix = t_strdup_printf("dovecot.%s.global”,
But I need to setup the path myself so my index cam be compliant to the index I
already have.
Wonder if changing it to something like the following so other users have a way
to configure their own path or use the default in case they don’t want to worry
about that.
string_t *str = t_str_new(256);
- const char *prefix = t_strdup_printf("dovecot.%s.global",
+if ( strstr(carbon_name , "." != NULL) {
+ const char *prefix = t_strdup_printf("",
stats_settings->carbon_name);
+} else {
+ const char *prefix =
t_strdup_printf("dovecot.%s.global",
+
stats_settings->carbon_name);
+}
If that is not the goal or if I am not using it right , let me know.
Bests,
G Fechio
ACL on shared folder
Hello everybody,
we're using shared mailboxes as an archive to which
everyone has full rights, set with doveadm. The rights
look like this:
doveadm acl get -u b...@example.com shared/arch...@example.com
ID Global Rights
user=b...@example.com admin create delete expunge insert lookup \
post read write write-deleted write-seen
Looking at this i would this i would think i should be able to
move an existing folder to shared/arch...@example.com. But i get
a "permission denied".
A rawlog session from trying to copy looks like this:
1 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY
THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT
CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES
WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE NOTIFY ACL RIGHTS=texk] Logged in
* ID ("name" "Dovecot")
2 OK ID completed (0.001 + 0.000 secs).
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags
permitted.
* 0 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1510573115] UIDs valid
* OK [UIDNEXT 1] Predicted next UID
3 OK [READ-WRITE] Select completed (0.005 + 0.000 + 0.004 secs).
* MYRIGHTS shared/arch...@example.com/IT-Sachen/blablub lrwstipekxacd
4 OK Myrights completed (0.001 + 0.000 secs).
+ idling
* OK Still here
5 OK Idle completed (4.007 + 4.006 + 4.006 secs).
6 OK NOOP completed (0.001 + 0.000 secs).
+ idling
7 OK Idle completed (42.014 + 42.013 + 42.013 secs).
8 OK List completed (0.015 + 0.000 + 0.014 secs).
9 OK Close completed (0.001 + 0.000 secs).
10 NO [NOPERM] Permission denied (0.005 + 0.000 + 0.004 secs).
I don't understand why there's a permission denied because doveadm tells
something else.
The shared mailbox folder ist the inbox of the account arch...@example.com
What has to be changed that it's possible to save messages or to create folders
in resp. under a shared inbox, or is this not possible?
Any suggestion is welcome.
Tia
Thomas
My configuration:
# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.21 (92477967)
# OS: Linux 2.6.32-696.13.2.el6.x86_64 x86_64 CentOS release 6.9 (Final) ext4
auth_debug = yes
auth_debug_passwords = yes
auth_master_user_separator = *
auth_mechanisms = plain login
auth_verbose = yes
disable_plaintext_auth = no
doveadm_password = # hidden, use -P to show it
doveadm_port = 12345
imap_max_line_length = 2 M
mail_debug = yes
mail_location = maildir:/export/home/imap/%Lu/Maildir
mail_plugins = acl mail_log notify
mailbox_idle_check_interval = 10 secs
mailbox_list_index = yes
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress
comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify
environment mailbox date index ihave duplicate mime foreverypart extracttext
namespace {
hidden = no
ignore_on_failure = no
inbox = no
list = children
location = maildir:%%h/Maildir:INDEXPVT=%h/shared/%%u
prefix = shared/%%u/
separator = /
subscriptions = yes
type = shared
}
namespace inbox {
hidden = no
inbox = yes
list = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix = INBOX/
separator = /
type = private
}
passdb {
args = /etc/dovecot/master-users
driver = passwd-file
master = yes
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
plugin {
acl = vfile:/etc/dovecot/global-acls:cache_secs=300
acl_shared_dict = file:/export/home/shared-db/shared-mailboxes
mail_log_events = append delete undelete expunge copy mailbox_delete
mailbox_rename flag_change
mail_log_fields = uid box msgid size from flags
mail_replica = tcp:mail2.example.com
sieve = ~/.dovecot.sieve
sieve_dir = ~/sieve
sieve_global = /var/lib/dovecot/sieve/global/
sieve_user_log = ~/.dovecot.sieve.log
}
protocols = imap pop3 lmtp sieve
service aggregator {
fifo_listener replication-notify-fifo {
mode = 0666
user = vmail
}
unix_listener replication-notify {
mode = 0666
user = vmail
}
}
service auth {
unix_listener /var/spool/postfix/private/auth {
mode = 0666
}
unix_listener auth-userdb {
group = vmail
mode = 0660
user = vmail
}
}
service config {
unix_listener config {
user = vmail
}
}
service doveadm {
inet_listener {
port = 12345
}
user = vmail
}
service imap-login {
inet_listener imaps {
port = 993
ssl = yes
}
process_limit = 500
process_min_avail = 20
}
service imap {
executable = imap postlogin
}
service lmtp {
inet_listener lmtp {
address = 127.0.0.1
port = 24
}
}
service m
Re: rawlog segfaults (error 4 in libdovecot.so.0.0.0)
It seems, it has to do with zlib plugin because a on test machine without
zlib plugin activted it works without segmentation fault and i can read
the log files written by rawlog.
Does anybody has a suggestion on what could be the problem? Compiling
resp. building the rpm worked without error and dovecot works with zlib
plugin activated. No other segfaults.
Tia
Thomas
Am 10.11.2017 um 11:19 schrieb Aki Tuomi:
rawlog files are plain text, readable files. you do not need to dump
them with doveadm. can you get gdb "bt full" for the core file?
Aki
On 10.11.2017 11:35, T. Robers wrote:
Hello everybody,
i tried to debug imap sessions with the rawlog feature and rawlog
creates files but when i try to dump them doveadm tells me
[...] Error: zlib.read((file)): unexpected EOF at [...].
I looked at syslog files and i see, that rawlog gets
terminated with a segfault, e.g.:
segfault at 10 ip 7ff6da362596 sp 7fffe725a080 error 4 in
libdovecot.so.0.0.0[7ff6da2a4000+122000]
Is there a way to debug why rawlog ist terminated? I haven't found
anything.I would be very thankful, if somebody could give a hint.
My system is:
# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.21 (92477967)
# OS: Linux 2.6.32-696.3.1.el6.x86_64 x86_64 CentOS release 6.9
(Final) ext4
auth_debug = yes
auth_debug_passwords = yes
auth_master_user_separator = *
auth_mechanisms = plain login
auth_verbose = yes
disable_plaintext_auth = no
imap_max_line_length = 2 M
mail_debug = yes
mail_location = maildir:/export/home/imap/%Lu/Maildir
mail_plugins = acl zlib mail_log notify
mailbox_idle_check_interval = 10 secs
mailbox_list_index = yes
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope
encoded-character vacation subaddress comparator-i;ascii-numeric
relational regex imap4flags copy include variables body enotify
environment mailbox date index ihave duplicate mime foreverypart
extracttext
namespace {
hidden = no
ignore_on_failure = no
inbox = no
list = children
location = maildir:%%h/Maildir:INDEXPVT=%h/shared/%%u
prefix = shared/%%u/
separator = /
subscriptions = yes
type = shared
}
namespace inbox {
hidden = no
inbox = yes
list = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix = INBOX/
separator = /
type = private
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
plugin {
acl = vfile:/etc/dovecot/global-acls:cache_secs=300
acl_shared_dict = file:/export/home/shared-db/shared-mailboxes
mail_log_events = append delete undelete expunge copy mailbox_delete
mailbox_rename flag_change
mail_log_fields = uid box msgid size from flags
sieve = ~/.dovecot.sieve
sieve_dir = ~/sieve
sieve_global = /var/lib/dovecot/sieve/global/
sieve_user_log = ~/.dovecot.sieve.log
zlib_save = gz
zlib_save_level = 6
}
protocols = imap pop3 lmtp sieve
service auth {
unix_listener /var/spool/postfix/private/auth {
mode = 0666
}
unix_listener auth-userdb {
group = vmail
mode = 0660
user = vmail
}
}
service imap-login {
inet_listener imap {
port = 143
}
inet_listener imaps {
port = 993
ssl = yes
}
process_limit = 500
process_min_avail = 20
}
service imap {
executable = imap postlogin
}
service lmtp {
inet_listener lmtp {
address = 127.0.0.1
port = 24
}
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
inet_listener sieve_deprecated {
port = 2000
}
}
service pop3-login {
inet_listener pop3s {
port = 995
ssl = yes
}
}
service pop3 {
executable = pop3 postlogin
}
service postlogin {
executable = script-login -d rawlog -f in
}
ssl = required
ssl_cert =
imap coredump after doveadm altmove
Hello, i tried to move mails to an alt storage with the following command: doveadm altmove -u u...@domain.de mailbox Inbox After that, the imap process produces a core dump (files has not been moved): Maillog: dovecot: imap-login: Login: user=, method=PLAIN, rip=X.X.X.X, lip=X.X.X.X, mpid=5393, TLS, session=<83JiHqNdTwCsEAIf> dovecot: imap(u...@domain.de): Fatal: master: service(imap): child 5393 killed with signal 11 (core dumped) Version: Dovecot 2.2.18.2 OS: CenotOS6 2.6.32-696.10.2.el6.x86_64 local storage (ext4) #gdb --args /usr/libexec/dovecot/imap -u u...@domain.de A1 STATUS INBOX (MESSAGES) Program received signal SIGSEGV, Segmentation fault. 0x774b3c9a in __strrchr_sse2 () from /lib64/libc.so.6 (gdb) bt full #0 0x774b3c9a in __strrchr_sse2 () from /lib64/libc.so.6 No symbol table info available. #1 0x77b148cd in sdbox_file_move () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #2 0x77b18284 in sdbox_sync_begin () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #3 0x77b18382 in sdbox_sync () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #4 0x77b18437 in sdbox_storage_sync_init () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #5 0x77af64b3 in mailbox_sync_init () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #6 0x77af7d27 in mailbox_sync () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #7 0x77b62af2 in index_storage_get_status () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #8 0x767eb32c in ?? () from /usr/lib64/dovecot/lib10_quota_plugin.so No symbol table info available. #9 0x76c021e4 in ?? () from /usr/lib64/dovecot/lib01_acl_plugin.so No symbol table info available. #10 0x77af8931 in mailbox_get_status () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #11 0x0041e07a in imap_status_get () No symbol table info available. #12 0x00413629 in cmd_status () No symbol table info available. #13 0x004178ed in command_exec () No symbol table info available. #14 0x004168d0 in ?? () No symbol table info available. #15 0x00416966 in ?? () No symbol table info available. #16 0x00416c5d in client_handle_input () No symbol table info available. #17 0x00416fdf in client_input () No symbol table info available. #18 0x77852fbb in io_loop_call_io () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #19 0x7785418f in io_loop_handler_run_internal () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #20 0x77853049 in io_loop_handler_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #21 0x778530c8 in io_loop_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #22 0x777f2043 in master_service_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #23 0x004206c1 in main () No symbol table info available. This is only on folders i have tried to move. best regards, Frank Koch -- smime.p7s Description: S/MIME Cryptographic Signature
