Re: [Dovecot] Namespace Problems
Many thanks,
its working fine with your suggestion.
But only with outlook I still have problems. Today morning I found out
that outlook does work only I keep the separator line empty
with
namespace private {
# separator = .
prefix = INBOX.
inbox = yes
hidden = no
}
But the result isn't satisfying. Outlook means it cannont connect to
server after connection was established, timeouts, goes in offline modus
etc.
Rainer
Kenny Dail schrieb:
Hi all,
after an update from dovecot beta version to 1.0.0.-1 today morning I
had different effects:
thunderbird-, kmail-, Apple-clients, pine and squirrelmail could
receive email correct with imaps. But not MSOutlook!!!
Varying the namespace configurations in dovecot.conf I got different
results with MSOutlook working but with thunderbird, squirrelmail etc.
all folders are displayed but not the root Inbox etc.
Its important to know that I migrated from courier-imap to dovecot.
My well working namespace config BEFORE upgrade to 1.0.0-1:
Here my actual namespace configs:
namespace private {
separator =
prefix = INBOX.
inbox = no
hidden = no
}
namespace private {
separator = /
prefix = INBOX/
inbox = no
hidden = yes
}
namespace private {
separator = .
prefix = INBOX.
inbox = yes
hidden = yes
}
Try it using only one namespace which matches what you are really doing.
With 1.0 this works for me with all clients I've tried, including Apple.
namespace private {
separator = .
prefix = INBOX.
inbox = yes
hidden = no
}
In varying inbox and hidden keywords I found this configuration. Most
things are working with this but in squirrelmal I can't access inbox,
the main folder.
How do I have to configure that everythings works satisfying??
dovecot.conf and dovecot-sql.conf I send in the attachment.
instead of sending dovecot.conf, next time use dovecot -n
--
-
Rainer Sigl, | email: [EMAIL PROTECTED]
MPI f. extraterrestrische Physik, | phone: +49 (89) 3-3557
Postfach 1312,| fax: +49 (89) 3-3569
D-85741 Garching, Germany | web: http://www.mpe.mpg.de/~sigl/
[Dovecot] Dovecot Authentication Problem (REVISED)
Hello List,
I am back again and I think I am edging closer to getting a solution.
I have done some modifications and now dovecot gives me a different
error message than before
Here is what I have for the password_query and user_query
password_query = SELECT popbox.cleartext AS password FROM popbox, domain \
WHERE popbox.local_part = 'eddie' AND popbox.domain_name = 'demo.wananchi.com' \
AND popbox.domain_name = domain.domain_name;
+--+
| password |
+--+
| boeing8 |
+--+
user_query = SELECT CONCAT(domain.path, '/', popbox.mbox_name) as home, \
69 as uid, 6 as gid FROM popbox, domain WHERE popbox.local_part = 'eddie' \
AND popbox.domain_name = 'demo.wananchi.com' AND \
popbox.domain_name = domain.domain_name;
++-+-+
| home | uid | gid |
++-+-+
| /var/spool/virtual/demo.wananchi.com/eddie | 69 | 6 |
++-+-+
When I test to connect to the pop3 daemon, this is what happens now:
[EMAIL PROTECTED] 0 7173
Trying 0.0.0.0...
Connected to 0.
Escape character is '^]'.
+OK Welcome. Dovecot is Ready to serve your emails.
user [EMAIL PROTECTED]
+OK
pass boeing8
-ERR [IN-USE] Internal login failure. Refer to server log for more information.
Connection closed by foreign host.
...and this is what dovecot writes to the log:
[EMAIL PROTECTED] /var/log/dovecot.log
dovecot: May 30 12:00:04 Info: auth(default): client in: AUTH 1 PLAIN
service=POP3secured lip=62.8.64.4 rip=62.8.64.4
resp=AGVkZGllQGRlbW8ud2FuYW5jaGkuY29tAGJvZWluZzg=
dovecot: May 30 12:00:04 Info: auth-worker(default): mysql: Connected to
localhost (virtualemail)
dovecot: May 30 12:00:04 Info: auth-worker(default): sql([EMAIL
PROTECTED],62.8.64.4): query: SELECT popbox.cleartext AS password FROM popbox,
domain WHERE popbox.local_part = 'eddie' AND popbox.domain_name =
'demo.wananchi.com' AND popbox.domain_name = domain.domain_name
dovecot: May 30 12:00:04 Info: auth(default): client out: OK1 [EMAIL
PROTECTED]
dovecot: May 30 12:00:04 Info: auth(default): master in: REQUEST2
36772 1
dovecot: May 30 12:00:04 Info: auth-worker(default): sql([EMAIL
PROTECTED],62.8.64.4): SELECT CONCAT(domain.path, '/', popbox.mbox_name) as
home, 69 as uid, 6 as gid FROM popbox, domain WHERE popbox.local_part =
'eddie' AND popbox.domain_name = 'demo.wananchi.com' AND popbox.domain_name =
domain.domain_name
dovecot: May 30 12:00:05 Error: child 39853 (auth-worker) killed with signal 11
dovecot: May 30 12:00:05 Info: auth(default): master out: FAIL 2
dovecot: May 30 12:00:05 Info: pop3-login: Internal login failure: user=<[EMAIL
PROTECTED]>, method=PLAIN, rip=62.8.64.4, lip=62.8.64.4, secured
The output of dovecot -n:
# /usr/local/etc/dovecot.conf
base_dir: /var/run/dovecot/
log_path: /var/log/dovecot.log
protocols: pop3
listen: *:7173
ssl_disable: yes
disable_plaintext_auth: no
shutdown_clients: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/pop3-login
login_greeting: Welcome. Dovecot is Ready to serve your emails.
login_process_size: 64
login_max_processes_count: 200
verbose_proctitle: yes
first_valid_uid: 69
first_valid_gid: 6
mail_extra_groups: exim
mail_location: maildir:/var/spool/virtual/%d/%n
mail_debug: yes
mail_executable: /usr/local/libexec/dovecot/pop3
mail_plugin_dir: /usr/local/lib/dovecot/pop3
pop3_uidl_format: %Mf
pop3_client_workarounds: outlook-no-nuls oe-ns-eoh
auth default:
mechanisms: plain login digest-md5 cram-md5
verbose: yes
debug: yes
debug_passwords: yes
passdb:
driver: sql
args: /usr/local/etc/dovecot-sql.conf
userdb:
driver: sql
args: /usr/local/etc/dovecot-sql.conf
socket:
type: listen
client:
path: /var/run/dovecot/auth-client
mode: 432
master:
path: /var/run/dovecot/auth-master
mode: 384
user: root
group: wheel
User's mail is stored in /var/spool/virtual/$domain/$user/{new,cur,tmp}
The path /var/spool/virtual/ is owned by uid:gid 69:6, and is writeable
by that uid.
I'd be happy to use a second brain and a third eye to help me figure out
the problem.
-Wash
http://www.netmeister.org/news/learn2quote.html
DISCLAIMER: See http://www.wananchi.com/bms/terms.php
--
+==+
|\ _,,,---,,_ | Odhiambo Washington<[EMAIL PROTECTED]>
Zzz /,`.-'`'-. ;-;;,_ | Wananchi Online Ltd. www.wananchi.com
|,4- ) )-,_. ,\ ( `'-'| Tel: +254 20 313985-9 +254 20 313922
'---''(_/--' `-'\_) | GSM: +254 722 743223 +254 733 744121
+==+
Democracy is a device that insures we shall be governed no better than
we deserve.
-- George Bernard Shaw
Re: [Dovecot] Stop Maildir appending to path
Henry wrote: dovecot -n: # /etc/dovecot/dovecot.conf ... snip ... userdb: driver: static args: uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes Try adding mail_location=~/ to the args above. socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 master: path: /var/run/dovecot/auth-master mode: 384 user: vmail -- dovecot version: 1.0.rc15 -- Debian Etch (Stable) on AMD64
[Dovecot] frequent index rebuilds versus disabled indexes
Ok, here's the short and sweet version of my dilemma. I have a group of servers mounting a shared NFS device to hold mail data for many different domains. Is it worth the load balancing management nightmare of setting up dedicating smtp, pop, and imap to one server (failing over to another in the group if the server goes down) to keep indexes on local disk? It's very tempting to just disable indexes and not worry about which server a user hits, and considering the vast majority of our 170,000 accounts only have about a 20MB quota, I'm not sure indexes will help that many users. Although, I guess I would need to work out something for the few huge accounts we do have.
Re: [Dovecot] deliver rejection message
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Thu, 24 May 2007, Antonio Casado Rodríguez wrote: Another possibility is to give two answers: one in English and another one in the default language of server. Example: Cuota de espacio excedida / Quota exceeded. It should still be automatically parsable. I really hate localized Exchange, it's DSNs are very unhelpful, sometimes it's even hard to tell which recipient failed. Exim, for example, makes it nice: == This message was created automatically by mail delivery software (Exim). A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: [EMAIL PROTECTED] SMTP error from remote mailer after RCPT TO:<[EMAIL PROTECTED]>: host ux-2s11z.inf.fh-bonn-rhein-sieg.de [10.20.1.10]: 550 5.1.1 <[EMAIL PROTECTED]>... User unknown === That's the start of the DSN in text/plain. The paragraphes are indented by recipient and broken to fit into the RFC 72 columns. Moreover, you have the SMTP error code and a human readable reason. Bye, - -- Steffen Kaiser -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) iQEVAwUBRl2AAy9SORjhbDpvAQL6gAf/b2LyTZnOi69OYXDM4VBIs5ANnuoDAkt2 p5oCyS4Y7QDSiOGu9oqiWbPbdp6fGsaywliOEeH7MoH11Ye7xgImNk8Dwh8p4nMr C0kaXmfTi1noqe50jKYt/YbWOf2u987dAdOp0OEBRg+7ypP8X24fIFzWLw40SC91 dhlK0ofJ0eBNtOpo2oZa/bM78uK3opm0Fv93ZcYBXlKnmc6sslE34VROd126mJ0b NRhsxsyWhV9HilpgLLDBxDqmY93xTyJGY6HnwpUUUyo7XPObgEwzf/Ap3ZhnxCRL ThiZLnwvxX7XqkbVeZKNHw56y+PxJaVJlfGkU+IYC84YWThLGYZ+vA== =1PWN -END PGP SIGNATURE-
[Dovecot] IMAP traffic logging
Hi. I wonder if it is possible to log the number of bytes send in response to IMAP commands. Unfortunately there seems to be no config option similar to "pop3_logout_format". Courier writes a log file like this (header/body bytes): imaplogin: DISCONNECTED, ip=[:::10.123.0.234], headers=0, body=0 Chris
[Dovecot] What are they trying to do here?
Hi! I’m new to the list, and I’m not really having a ‘problem’, but I’m seeing something in my log files that I wonder if I should be concerned. I’ve been using Dovecot (dovecot-0.99.14-8.fc4) on my Fedora Core 4 (kernel 2.6.17-1.2142_FC4) machine from quite some time. For the last few days, I’ve been seeing this in my daily ‘Logwatch’ e-mail: dovecot: Authentication Failures: rhost= : 139 Time(s) root: 13 Time(s) Unknown Entries: check pass; user unknown: 139 Time(s) So it looks pretty obvious that someone (using root and an assortment of other login names) is trying to access by dovecot server. My first ‘issue’ is I can’t find a log file anywhere that tells me the IP address of the attacker. I see a series of ‘authentication failure’ messages in my /log/messages file: May 29 21:23:35 mydomainname dovecot(pam_unix)[15317]: authentication failure; logname= uid=0 euid=0 tty= ruser= rhost= user=root May 29 21:23:35 mydomainname dovecot(pam_unix)[15318]: check pass; user unknown May 29 21:23:35 mydomainname dovecot(pam_unix)[15318]: authentication failure; logname= uid=0 euid=0 tty= ruser= rhost= May 29 21:23:36 mydomainname dovecot(pam_unix)[15320]: check pass; user unknown May 29 21:23:36 mydomainname dovecot(pam_unix)[15320]: authentication failure; logname= uid=0 euid=0 tty= ruser= rhost= But I don’t find anything in any other log files to indicate where this is coming from. Secondly, I’m wondering if I have anything to be concerned about. Thanks in advance for you help! Jon No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.472 / Virus Database: 269.8.3/824 - Release Date: 5/29/2007 1:01 PM
[Dovecot] dovecot scaling issue?
Hi! We are running dovecot-imapd on Debian sarge out of the backports.org packages (version 1.0.rc15-1~bpo1). We have ~ 80 clients using secure IMAP. I understand that imap-login has to run for every SSL connection. Thus I already increased the max value for the number of imap-login processes. But unfortunately dovecot is unresponsive from time to time. Where can I tune the installation? Do I need to upgrade to 1.0.0, for which no backported packages exist for Debian sarge? This is the output of dovecot -n: log_timestamp: %Y-%m-%d %H:%M:%S listen: *:143 ssl_listen: *:993 ssl_cert_file: /etc/courier/imapd.pem ssl_key_file: /etc/courier/imapd.pem disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login login_processes_count: 12 login_max_processes_count: 512 verbose_proctitle: yes mail_location: maildir:~/.Maildir:INDEX=/var/cache/dovecot/INBOX.%u:CONTROL=/var/cache/dovecot/INBOX.%u mail_full_filesystem_access: yes maildir_stat_dirs: yes maildir_copy_with_hardlinks: yes namespace: type: private separator: . prefix: INBOX. inbox: yes namespace: type: public separator: . prefix: shared. location: maildir:~/.Maildir/shared:INDEX=/var/cache/dovecot/shared.%u:CONTROL=/var/cache/dovecot/shared.%u auth default: verbose: yes passdb: driver: passwd userdb: driver: passwd Homedirectories are on NFS, /var/cache/dovecot is a local filesystem. Clients are mostly Thunderbird, where max connection to IMAP server is set to 5. Greetings -- Robert Sander Senior Manager Information Systems Epigenomics AGKleine Praesidentenstr. 110178 Berlin, Germany phone:+49-30-24345-0fax:+49-30-24345-555 http://www.epigenomics.com [EMAIL PROTECTED]
Re: [Dovecot] Converting mbox to Maildir, all prior read messages are downloaded as new
Timo Sirainen wrote: On Fri, 2007-05-25 at 14:36 -0400, FiL wrote: > This is not only about POP3, as far as I can tell. If you > converting mbox to Maildir (dovecot to dovecot) - UIDs change. And > if you have your client set to cache all the messages and you have > over 1Gb in your mail... well, it will be transferring all your > mail again. Deleting the old one (as it is not on the server > anymore) and re-downloading new ones. Right. But it's not as bad as with POP3 where the messages are downloaded as duplicates. It's pretty bad if you trying to check your mail over the slow connection (and some users do that). Also at least 1/3 of my users have 100Mb just in the inbox and much more in other mailboxes. And I know, that server just wouldn't handle the load the first day after migration. > I have all my mbox-es in /raid/mbox/%u I have set convert_mail = > mbox:/raid/mbox/%u:INBOX=/var/mail/%u in the dovecot.conf. But for > some reason the folder with mail doesn't get renamed after > conversion. Is that the way it should be? And the destination isn't /raid/mbox/%u? It should have renamed the %u to %u-converted. The destination is /raid/Maildir/%u/ but the original folder doesn't get renamed. I will play with it a little more and let you know the details. FiL
[Dovecot] AIX mail quota plugin problems
From reading the wiki for a filesystem quota, I took my shot at
1) building my binaries using the mods in AIXPluginsSupport
2) changing dovecot.conf and
3) putting the plugins in the library
But I'm getting this error message when I invoke dovecot:
Plugin imap_quota not found from directory /usr/local/lib/dovecot
Error: imap dump-capability process returned 89
It would seem that
a) I have the syntax or the parameters wrong
b) I didn't get the changes to the AIX build environment right
I've attached the dovecot -n output.
Here are the details of what I did.
1) dovecot.conf
=== within the imap config section ===
# Support for dynamically loadable plugins. mail_plugins is a space
separated
# list of plugins to load.
#mail_plugins =
#mail_plugin_dir = /usr/lib/dovecot/imap
# SD 5/24/07 tryout FS quota plugin
mail_plugins = quota imap_quota
mail_plugin_dir = /usr/local/lib/dovecot/imap
plugin {
# Here you can give some extra environment variables to mail processes.
# This is mostly meant for passing parameters to plugins. %variable
# expansion is done for all values.
# Quota plugin. Multiple backends are supported:
# dirsize: Find and sum all the files found from mail directory.
#Extremely SLOW with Maildir. It'll eat your CPU and disk
I/O.
# dict: Keep quota stored in dictionary (eg. SQL)
# maildir: Maildir++ quota
# fs: Read-only support for filesystem quota
#quota = maildir
# SD 5/24/07 Try FS quota support
quota = fs
I've tried it as both
mail_plugin_dir = /usr/local/lib/dovecot/imap
and
mail_plugin_dir = /usr/local/lib/dovecot
2) Both ways I see this error message:
4229 [EMAIL PROTECTED]:/usr/local/etc ## dovecot
ILoading modules from directory: /usr/local/lib/dovecot
IModule loaded: /usr/local/lib/dovecot/lib10_quota_plugin.so
FPlugin imap_quota not found from directory /usr/local/lib/dovecot
Error: imap dump-capability process returned 89
4272 [EMAIL PROTECTED]:/usr/local/lib/dovecot/imap ## dovecot
ILoading modules from directory: /usr/local/lib/dovecot/imap
IModule loaded: /usr/local/lib/dovecot/imap/lib10_quota_plugin.so
FPlugin imap_quota not found from directory /usr/local/lib/dovecot/imap
Error: imap dump-capability process returned 89
3) These directories have the following contents:
4292 [EMAIL PROTECTED]:/usr/local/lib/dovecot ## ls -al
total 1168
drwxr-xr-x 3 root system 512 May 24 12:36 ./
drwxr-xr-x 7 root system 512 May 21 14:31 ../
-rw-r--r-- 1 root sys 292522 May 22 15:12
052207-1455-64bit-ssl.lib10_quota_plugin.a
-rwxr-xr-x 1 root sys 904 May 22 15:12
052207-1455-64bit-ssl.lib10_quota_plugin.la*
-rwxr-xr-x 1 root sys 270499 May 22 15:12
052207-1455-64bit-ssl.lib10_quota_plugin.so*
drwxr-xr-x 2 root system 512 May 24 12:41 imap/
lrwxrwxrwx 1 root system 65 May 24 12:36
lib10_quota_plugin.a@ -> /usr/local/lib/dovecot/052207-1
455-64bit-ssl.lib10_quota_plugin.a
lrwxrwxrwx 1 root system 66 May 24 12:36
lib10_quota_plugin.la@ -> /usr/local/lib/dovecot/052207-
1455-64bit-ssl.lib10_quota_plugin.la*
lrwxrwxrwx 1 root system 66 May 24 12:36
lib10_quota_plugin.so@ -> /usr/local/lib/dovecot/052207-
1455-64bit-ssl.lib10_quota_plugin.so*
[EMAIL PROTECTED]:/usr/local/lib/dovecot/imap ## ls -al
total 152
drwxr-xr-x 2 root system 512 May 24 12:41 ./
drwxr-xr-x 3 root system 512 May 24 12:36 ../
-rw-r--r-- 1 root system19250 May 22 15:12
052207-1455-64bit-ssl.lib11_imap_quota_plugin.a
-rwxr-xr-x 1 root system 944 May 22 15:12
052207-1455-64bit-ssl.lib11_imap_quota_plugin.la*
-rwxr-xr-x 1 root system28645 May 22 15:12
052207-1455-64bit-ssl.lib11_imap_quota_plugin.so*
lrwxrwxrwx 1 root system 66 May 24 12:36
lib10_quota_plugin.so@ -> /usr/local/lib/dovecot/052207-
1455-64bit-ssl.lib10_quota_plugin.so*
lrwxrwxrwx 1 root system 75 May 24 12:36
lib11_imap_quota_plugin.a@ -> /usr/local/lib/dovecot/ima
p/052207-1455-64bit-ssl.lib11_imap_quota_plugin.a
lrwxrwxrwx 1 root system 76 May 24 12:36
lib11_imap_quota_plugin.la@ -> /usr/local/lib/dovecot/im
ap/052207-1455-64bit-ssl.lib11_imap_quota_plugin.la*
lrwxrwxrwx 1 root system 76 May 24 12:36
lib11_imap_quota_plugins.so@ -> /usr/local/lib/dovecot/i
Any suggestions?
--
Stewart Dean, Unix System Admin, Henderson Computer Resources
Center of Bard College, Annandale-on-Hudson, New York 12504
[EMAIL PROTECTED] voice: 845-758-7475, fax: 845-758-7035
--- Begin Message ---
# /usr/local/etc/dovecot.conf
listen: *:10143
ssl_listen: *:10943
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
login_processes_count: 12
login_max_processes_count: 774
verbose_proctitle: yes
first_valid_uid: 200
mail_location: m
[Dovecot] Dovecot support for smd5 and ldap-md5
Working with a dovecot migration, I am curious what version (if any) of Dovecot (dovecot-auth) supports SMD5 and ldap-MD5 when using Dovecot -> OpenLDAP direct binding? Thank you! Eric
[Dovecot] Index file rewrite status
The biggest problem with getting v1.0 out was getting its index file code stable. v1.1 plans included doing large changes to the index file code, so it's important to get the new code stable as soon as possible. Since I've managed to stay pretty productive for the last few weeks, I've been mostly just coding the index changes. Once I'm sure that the code is again fully working I'll commit it to hg, relax a bit and then I'll again start answering mails in this list. It looks like the code is almost working, but it's still giving failures once in a while. Below are anyway a few benchmarks for you to see how it's progressing. I haven't yet done all the optimizations I've planned, but looks like it already gives 25-30% better performance in cydir tests. The cydir benchmarks are the most important ones because cydir relies completely on index files, so the benchmarks are practically index benchmarks. And the 25-30% is mostly about CPU usage I think, reduced dovecot.index file rewrites will help with disk I/O as well. The new index code should be pretty NFS friendly. I think there is going to be only one place where I'll need to force attribute cache flush and then probably a couple of places where data cache needs to be flushed (I'm not exactly sure about that yet, I'll have to know more about NFS data caching). One other thing I'm hoping to implement is that the index functions would almost never fail. If anything breaks, the indexes should be moved to memory. Any corrupted data should be ignored and anything that looks good would still be used (important with cydir/dbox). I've even managed to remove about 500 lines of code: 26 files changed, 3258 insertions(+), 3753 deletions(-) (about 2000 insert+deletions are just cut&pasting code to different files) Append-only tests: mmap_disable=no, fsync_disable=yes Current hg (before index rewrite), cydir: ./imaptest - append=100,0 logout=0 select=0 clients=1 secs=5 Logi Appe 100% 100% 1 2602 1/ 1 0 2671 1/ 1 0 2750 1/ 1 0 2363 1/ 1 Totals: 1 13206 Index rewrite, cydir: Totals: Logi Appe 100% 100% 1 4251 1/ 1 0 3914 1/ 1 0 3514 1/ 1 0 2985 1/ 1 0 2538 1/ 1 Totals: 1 17202 Maildir (not much difference between rewrite/no rewrite): Logi Appe 100% 100% 1 917 1/ 1 0 498 1/ 1 0 284 1/ 1 0 273 1/ 1 0 296 1/ 1 Totals: 1 2268 mbox (+300 with index rewrite): Logi Appe 100% 100% 1 1827 1/ 1 0 1688 1/ 1 0 1811 1/ 1 0 2040 1/ 1 Totals: 1 9114 Then a bit more generic test: Old index code, cydir: ./imaptest secs=10 clients=10 Logi List Stat Sele Fetc Fet2 Stor Dele Expu Appe Logo 100% 50% 50% 100% 100% 100% 50% 100% 100% 100% 100% 30% 5% 3417 1713 1713 3416 3403 4840 1719 1260 3403 1999 6816 New index code, cydir: Logi List Stat Sele Fetc Fet2 Stor Dele Expu Appe Logo 100% 50% 50% 100% 100% 100% 50% 100% 100% 100% 100% 30% 5% 4686 2349 2317 4678 4675 6636 2323 1628 4675 2585 9353 signature.asc Description: This is a digitally signed message part
[Dovecot] dovecot performance slow + time issue solved
This is is follow up to my previous post about dovecot performance being slow. BTW, thanks to all that replied. For one month we have been trying to figure why suddenly dovecot was slow. We had two server's running dovecot with the same config and one was fine while the other wasn't very slow. The server that was slow was on a virtual server and we noticed some time errors in the logs and installed ntpd which didn't help the problem. After trying to tweak the config etc... I put dovecot on a new server and its running great. Before I was seeing 35% idle cpu with 700 + pop3 login sessions and another 400 imap. Since we moved to a new server, that has no time issues, we are seeing 97% idle cpu with 50 - 70 pop3 logins and 40 imap while performance is a lot faster. The previous system, giving us all the problems, was on a virtual server running Virtual Iron software. The hardware was the same on both. Here's what I was seeing, that contributed to the problems causing 7000 angry customers to call us :) [EMAIL PROTECTED] etc]# ps aux | grep pop3 | wc -l 740 [EMAIL PROTECTED] etc]# ps aux | grep imap | wc -l 450 [EMAIL PROTECTED] etc]# May 29 11:42:19 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until we're back in present. May 29 11:42:19 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until we're back in present. May 29 11:42:31 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until we're back in present. May 29 11:42:42 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until we're back in present. I was also getting postfix "backwards time" errors. I guess these errors were causing login sessions to stay up longer then they should have which backed up my server. I hope this helps someone out sooner as I had a feeling the time was causing the problems but mgt here didn't let me try to move it to another server until they exhausted all other options. Thanks, Paul
[Dovecot] testink
# Protocols we want to be serving: # imap imaps pop3 pop3s #protocols = imap imaps # IP or host address where to listen in for connections. It's not currently # possible to specify multiple addresses. "*" listens in all IPv4 interfaces. # "[::]" listens in all IPv6 interfaces, but may also listen in all IPv4 # interfaces depending on the operating system. You can specify ports with # "host:port". #imap_listen = * #pop3_listen = *
Re: [Dovecot] testink
On Thu, 2007-05-31 at 01:44 +0300, Timo Sirainen wrote: Whops :) What happened to my filter that was supposed to prevent all mails coming from me if they weren't properly pgp-signed.. signature.asc Description: This is a digitally signed message part
Re: [Dovecot] testink
Timo Sirainen wrote: On Thu, 2007-05-31 at 01:44 +0300, Timo Sirainen wrote: Whops :) What happened to my filter that was supposed to prevent all mails coming from me if they weren't properly pgp-signed.. It got the flue... ;)
Re: [Dovecot] testink
On Thu, 2007-05-31 at 01:45 +0300, Timo Sirainen wrote: > On Thu, 2007-05-31 at 01:44 +0300, Timo Sirainen wrote: > > Whops :) What happened to my filter that was supposed to prevent all > mails coming from me if they weren't properly pgp-signed.. Oh, right. Since I'm sending my own mails via dovecot.org it doesn't check my mails at all. So I guess that pgp check is a bit pointless. But I guess it doesn't hurt either. Anyway, the test is complete. :) : permission denied. Command output: Don't post your whole dovecot.conf. Use dovecot -n instead. It greps for a comment inside dovecot.conf that hasn't changed since v0.99: "^# IP or host address where to listen in for connections." The next thing would be to figure out a rule to stop people from posting new messages by replying to existing messages. I suppose it should be done only if: - Message contains In-Reply-To: header - Subject doesn't contain Re: - Body doesn't contain any quotes - User's first message to list The last check is the difficult one. I guess I'll leave this alone for a while. signature.asc Description: This is a digitally signed message part
