July 2017 - dovecot - dovecot.org

Re: under some kind of attack
by Joseph Tam 19 Jul '17

19 Jul '17

mj <lists(a)merit.unu.edu> writes: >>> However, it seems almost all IPs are different, and I don't think I can >>> keep the above settings permanently. >> >> Why not? Limited by firewall rules overload? You could probably use >> a persistent DB, can't you? > > I meant: keep the "block after the first failed attempt" setting. People > need the chance to change their password, so I have increased it to two. A timeout feature is handy here; even though you allow attackers several kicks at the can, it will allow your users to eventually gain control to their accounts again after a suitable penalty period. >> You can also use a third party RBL that specialized in brute forcers like >> blocklist.de. You can also feed back fail2ban data and crowdsource BFD >> data to them. > > Yes, I will look into that now. > ... > > Anyone aware of other blocklists that are worth bocking? Because the > list.blocklist.de/lists/all.txt blocks some, but not anywhere near all. There are other RBLs that overlap with this (like CBL), but they include entries will produce false positives. There was OpenBL but that is defunct. The different lists at blocklist.de have varying efficacy: the ssh and smtp BFD detection are fairly good (they have a 90+% hit rate at my site), but the IMAP/POP BFD detection not as good (maybe 20%). However, if people start feeding IMAP/POP fail2ban data back to blocklist.de, that will get better. > I now know how to block large lists of ips, so if anyone has additional > lists to block? Yeah, all of ChinaNet. May produce false positives. Joseph Tam <jtam.home(a)gmail.com>

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Dovecot imap
by Nick Lekkas 19 Jul '17

19 Jul '17

Hello there ! Is there anything wrong in the config i have sent earlier ..? __________ Information from ESET Endpoint Antivirus, version of detection engine 15774 (20170719) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com

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Re: under some kind of attack
by Joseph Tam 19 Jul '17

19 Jul '17

On Tue, 18 Jul 2017, dovecot-request(a)dovecot.org wrote: > Thanks for the quick follow-ups! Much appreciated. After posting this, I > immediately started working on fail2ban. And between my initial posting > and now, fail2ban already blocked 114 IPs. > > I have fail2ban with maxretry=1 and bantime=1800 > > However, it seems almost all IPs are different, and I don't think I can > keep the above settings permanently. Why not? Limited by firewall rules overload? You could probably use a persistent DB, can't you? You can also use a third party RBL that specialized in brute forcers like blocklist.de. You can also feed back fail2ban data and crowdsource BFD data to them. Joseph Tam <jtam.home(a)gmail.com>

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Dovecot imap
by Nick Lekkas 19 Jul '17

19 Jul '17

Hello to all !!! I have some issues with some users that login to the same account through imap from many devices like: mobile,desktop/tablet !!! Issues like: 1. When a new email is arrived is not appearing to all devices... 2. New email is arriving to some other devices after a long period of time ... Generally issues like that .... Does anyone have an idea of how to solve this ..? thanks in advance for your time ... __________ Information from ESET Endpoint Antivirus, version of virus signature database 14893 (20170206) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com __________ Information from ESET Endpoint Antivirus, version of virus signature database 14911 (20170209) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com __________ Information from ESET Endpoint Antivirus, version of virus signature database 14939 (20170215) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com __________ Information from ESET Endpoint Antivirus, version of virus signature database 14964 (20170220) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com __________ Information from ESET Endpoint Antivirus, version of virus signature database 15008 (20170228) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com __________ Information from ESET Endpoint Antivirus, version of virus signature database 15037 (20170305) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com __________ Information from ESET Endpoint Antivirus, version of detection engine 15767 (20170718) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com __________ Information from ESET Endpoint Antivirus, version of detection engine 15767 (20170718) __________ The message was checked by ESET Endpoint Antivirus. Email message - is OK http://www.eset.com

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Re: passwd-file, getting invalid uid 0
by Larry Rosenman 19 Jul '17

19 Jul '17

The alias works fine. It's just an auth request. I'll live with it. Sent from my Sprint Samsung Galaxy S8+. -------- Original message --------From: Bill Shirley <bill(a)KnoxvilleChristian.org> Date: 7/18/17 11:24 PM (GMT-06:00) To: dovecot(a)dovecot.org Subject: Re: passwd-file, getting invalid uid 0 Unless your userid is also zero, my guess is that Exim isn't using the alias. This message (to me) says "I can't deliver to 'root' because that userid is zero". On Postfix, you have to run 'newaliases' after changing /etc/aliases. Bill On 7/13/2017 3:42 PM, Larry Rosenman wrote: > Per my earlier post about system and virtual users, I have everything working, but I'm seeing the > following message, and wondering: > 1) does it matter? > 2) is there a way to suppress it? > > I have an Exim /etc/aliases entry that sends root to me. > > Jul 13 14:38:47 thebighonker dovecot: auth-worker(13055): Error: passwd-file /etc/passwd: User root has invalid UID '0' > > doveconf -n: > > # 2.2.31 (65cde28): /usr/local/etc/dovecot/dovecot.conf > # Pigeonhole version 0.4.19 (e5c7051) > # OS: FreeBSD 11.1-PRERELEASE amd64 > auth_mechanisms = plain login > auth_realms = lerctr.org thebighonker.lerctr.org tbh.lerctr.org thejonesonair.com thejonesonair.net > default_vsz_limit = 1 G > deliver_log_format = msgid=%m: %$ (subject=%s from=%f size=%w) > doveadm_password = # hidden, use -P to show it > lda_mailbox_autocreate = yes > listen = 192.147.25.65, :: > lmtp_save_to_detail_mailbox = yes > login_access_sockets = tcpwrap > mail_attribute_dict = file:%h/mail/.imap/dovecot-mail-attributes > mail_location = mbox:~/mail:INBOX=~/mail/INBOX > mail_log_prefix = "%s(%u/%p): " > mail_plugins = " fts fts_solr notify stats virtual" > mail_privileged_group = mail > mail_server_admin = mailto:ler@lerctr.org > mail_server_comment = LERCTR Mail Server > 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 vacation-seconds editheader mboxmetadata servermetadata imapsieve vnd.dovecot.imapsieve > namespace archive { > hidden = no > list = no > location = mbox:~/MAIL-ARCHIVE > prefix = ARCHIVE/ > separator = / > } > namespace inbox { > inbox = yes > location = > mailbox Drafts { > special_use = \Drafts > } > mailbox INBOX { > auto = create > } > mailbox SENT { > special_use = \Sent > } > mailbox SPAM { > special_use = \Junk > } > mailbox "Sent Messages" { > special_use = \Sent > } > mailbox Trash { > special_use = \Trash > } > mailbox virtual/Flagged { > special_use = \Flagged > } > mailbox virtual/all { > special_use = \All > } > prefix = > } > namespace virtual { > hidden = no > list = yes > location = virtual:~/MAIL-VIRTUAL:INDEX=MEMORY > prefix = Virtual/ > separator = / > } > passdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > passdb { > args = user=%Ln noauthenticate > driver = static > skip = authenticated > } > passdb { > args = failure_show_msg=yes session=yes max_requests=20 > driver = pam > skip = authenticated > } > plugin { > fts = solr > fts_autoindex = yes > fts_solr = url=http://thebighonker.lerctr.org:8983/solr/dovecot/ > fts_tika = http://localhost:9998/tika/ > imapsieve_mailbox1_before = file:/usr/local/share/dovecot-pigeonhole/sieve/report-spam.sieve > imapsieve_mailbox1_causes = COPY > imapsieve_mailbox1_name = SPAM > imapsieve_mailbox2_before = file:/usr/local/share/dovecot-pigeonhole/sieve/report-ham.sieve > imapsieve_mailbox2_causes = COPY > imapsieve_mailbox2_from = SPAM > imapsieve_mailbox2_name = * > imapsieve_url = sieve://thebighonker.lerctr.org > mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append > mail_log_fields = uid box msgid size from subject vsize flags > recipient_delimiter = + > sieve = ~/.dovecot.sieve > sieve_dir = ~/sieve > sieve_execute_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve > sieve_extensions = +editheader +vacation-seconds +mboxmetadata +servermetadata > sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute > sieve_pipe_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve > sieve_plugins = sieve_imapsieve sieve_extprograms > stats_command_min_time = 1 mins > stats_domain_min_time = 12 hours > stats_ip_min_time = 12 hours > stats_memory_limit = 16 M > stats_refresh = 5s > stats_session_min_time = 15 mins > stats_track_cmds = yes > stats_user_min_time = 1 hours > } > protocols = imap pop3 lmtp sieve > service auth { > unix_listener auth-client { > mode = 0666 > } > unix_listener auth-master { > mode = 0666 > } > } > service doveadm { > inet_listener http { > port = 8080 > ssl = yes > } > } > service indexer-worker { > drop_priv_before_exec = yes > } > 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 stats { > chroot = empty > client_limit = 0 > drop_priv_before_exec = no > executable = stats > extra_groups = > fifo_listener stats-mail { > group = > mode = 0666 > user = > } > fifo_listener stats-user { > group = > mode = 0666 > user = > } > group = > idle_kill = 4294967295 secs > privileged_group = > process_limit = 1 > process_min_avail = 0 > protocol = > service_count = 0 > type = > unix_listener stats { > group = > mode = 0666 > user = > } > user = $default_internal_user > vsz_limit = 18446744073709551615 B > } > service tcpwrap { > unix_listener login/tcpwrap { > group = $default_login_user > mode = 0600 > user = $default_login_user > } > } > ssl_cert = </home/ler/letsencrypt-home/lerctr.org/fullchain.cer > ssl_cipher_list = EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+AESGCM:EECDH:EDH+AESGCM:EDH+aRSA:HIGH:!MEDIUM:!LOW:!aNULL:!eNULL:!LOW:!RC4:!MD5:!EXP:!PSK:!SRP:!DSS > ssl_key = # hidden, use -P to show it > ssl_protocols = !SSLv2 !SSLv3 > userdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > userdb { > args = username_format=%Ln /etc/passwd > driver = passwd-file > } > verbose_proctitle = yes > protocol lmtp { > mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" > } > protocol lda { > mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" > } > protocol pop3 { > mail_plugins = " fts fts_solr notify stats virtual mail_log" > } > protocol !doveadm { > mail_plugins = " fts fts_solr notify stats virtual mail_log" > } > protocol imap { > imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags > imap_logout_format = in=%i out=%o fhc=%{fetch_hdr_count} fhb=%{fetch_hdr_bytes} fbc=%{fetch_body_count} fbb=%{fetch_body_bytes} del=%{deleted} exp=%{expunged} trash=%{trashed} > imap_metadata = yes > mail_max_userip_connections = 50 > mail_plugins = " fts fts_solr notify stats virtual mail_log imap_sieve imap_stats stats" > } >

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passwd-file, getting invalid uid 0
by Larry Rosenman 19 Jul '17

19 Jul '17

Per my earlier post about system and virtual users, I have everything working, but I'm seeing the following message, and wondering: 1) does it matter? 2) is there a way to suppress it? I have an Exim /etc/aliases entry that sends root to me. Jul 13 14:38:47 thebighonker dovecot: auth-worker(13055): Error: passwd-file /etc/passwd: User root has invalid UID '0' doveconf -n: # 2.2.31 (65cde28): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.19 (e5c7051) # OS: FreeBSD 11.1-PRERELEASE amd64 auth_mechanisms = plain login auth_realms = lerctr.org thebighonker.lerctr.org tbh.lerctr.org thejonesonair.com thejonesonair.net default_vsz_limit = 1 G deliver_log_format = msgid=%m: %$ (subject=%s from=%f size=%w) doveadm_password = # hidden, use -P to show it lda_mailbox_autocreate = yes listen = 192.147.25.65, :: lmtp_save_to_detail_mailbox = yes login_access_sockets = tcpwrap mail_attribute_dict = file:%h/mail/.imap/dovecot-mail-attributes mail_location = mbox:~/mail:INBOX=~/mail/INBOX mail_log_prefix = "%s(%u/%p): " mail_plugins = " fts fts_solr notify stats virtual" mail_privileged_group = mail mail_server_admin = mailto:ler@lerctr.org mail_server_comment = LERCTR Mail Server 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 vacation-seconds editheader mboxmetadata servermetadata imapsieve vnd.dovecot.imapsieve namespace archive { hidden = no list = no location = mbox:~/MAIL-ARCHIVE prefix = ARCHIVE/ separator = / } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox INBOX { auto = create } mailbox SENT { special_use = \Sent } mailbox SPAM { special_use = \Junk } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } mailbox virtual/Flagged { special_use = \Flagged } mailbox virtual/all { special_use = \All } prefix = } namespace virtual { hidden = no list = yes location = virtual:~/MAIL-VIRTUAL:INDEX=MEMORY prefix = Virtual/ separator = / } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = user=%Ln noauthenticate driver = static skip = authenticated } passdb { args = failure_show_msg=yes session=yes max_requests=20 driver = pam skip = authenticated } plugin { fts = solr fts_autoindex = yes fts_solr = url=http://thebighonker.lerctr.org:8983/solr/dovecot/ fts_tika = http://localhost:9998/tika/ imapsieve_mailbox1_before = file:/usr/local/share/dovecot-pigeonhole/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = SPAM imapsieve_mailbox2_before = file:/usr/local/share/dovecot-pigeonhole/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = SPAM imapsieve_mailbox2_name = * imapsieve_url = sieve://thebighonker.lerctr.org mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append mail_log_fields = uid box msgid size from subject vsize flags recipient_delimiter = + sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_execute_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve sieve_extensions = +editheader +vacation-seconds +mboxmetadata +servermetadata sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute sieve_pipe_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve sieve_plugins = sieve_imapsieve sieve_extprograms stats_command_min_time = 1 mins stats_domain_min_time = 12 hours stats_ip_min_time = 12 hours stats_memory_limit = 16 M stats_refresh = 5s stats_session_min_time = 15 mins stats_track_cmds = yes stats_user_min_time = 1 hours } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-client { mode = 0666 } unix_listener auth-master { mode = 0666 } } service doveadm { inet_listener http { port = 8080 ssl = yes } } service indexer-worker { drop_priv_before_exec = yes } 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 stats { chroot = empty client_limit = 0 drop_priv_before_exec = no executable = stats extra_groups = fifo_listener stats-mail { group = mode = 0666 user = } fifo_listener stats-user { group = mode = 0666 user = } group = idle_kill = 4294967295 secs privileged_group = process_limit = 1 process_min_avail = 0 protocol = service_count = 0 type = unix_listener stats { group = mode = 0666 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } service tcpwrap { unix_listener login/tcpwrap { group = $default_login_user mode = 0600 user = $default_login_user } } ssl_cert = </home/ler/letsencrypt-home/lerctr.org/fullchain.cer ssl_cipher_list = EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+AESGCM:EECDH:EDH+AESGCM:EDH+aRSA:HIGH:!MEDIUM:!LOW:!aNULL:!eNULL:!LOW:!RC4:!MD5:!EXP:!PSK:!SRP:!DSS ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv2 !SSLv3 userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = username_format=%Ln /etc/passwd driver = passwd-file } verbose_proctitle = yes protocol lmtp { mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" } protocol lda { mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" } protocol pop3 { mail_plugins = " fts fts_solr notify stats virtual mail_log" } protocol !doveadm { mail_plugins = " fts fts_solr notify stats virtual mail_log" } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags imap_logout_format = in=%i out=%o fhc=%{fetch_hdr_count} fhb=%{fetch_hdr_bytes} fbc=%{fetch_body_count} fbb=%{fetch_body_bytes} del=%{deleted} exp=%{expunged} trash=%{trashed} imap_metadata = yes mail_max_userip_connections = 50 mail_plugins = " fts fts_solr notify stats virtual mail_log imap_sieve imap_stats stats" } -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: larryrtx(a)gmail.com US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281

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Re: passwd-file, getting invalid uid 0
by Larry Rosenman 18 Jul '17

18 Jul '17

On Tue, Jul 18, 2017 at 3:31 PM, Larry Rosenman <larryrtx(a)gmail.com> wrote: > That didn't change it :( > Jul 18 15:28:14 thebighonker dovecot: auth-worker(77908): Error: > passwd-file /etc/passwd: User root has invalid UID '0' > Jul 18 15:28:14 thebighonker dovecot: auth-worker(77908): Error: > passwd-file /etc/passwd: User toor has invalid UID '0' > > doveconf -n: > lrosenman:~ lrosenman$ ssh tbh.lerctr.org doveconf -n > # 2.2.31 (65cde28): /usr/local/etc/dovecot/dovecot.conf > # Pigeonhole version 0.4.19 (e5c7051) > # OS: FreeBSD 11.1-PRERELEASE amd64 > auth_mechanisms = plain login > auth_realms = lerctr.org thebighonker.lerctr.org tbh.lerctr.org > thejonesonair.com thejonesonair.net > default_vsz_limit = 1 G > deliver_log_format = msgid=%m: %$ (subject=%s from=%f size=%w) > doveadm_password = # hidden, use -P to show it > first_valid_gid = 0 > first_valid_uid = 0 > lda_mailbox_autocreate = yes > listen = 192.147.25.65, :: > lmtp_save_to_detail_mailbox = yes > login_access_sockets = tcpwrap > mail_attribute_dict = file:%h/mail/.imap/dovecot-mail-attributes > mail_location = mbox:~/mail:INBOX=~/mail/INBOX > mail_log_prefix = "%s(%u/%p): " > mail_plugins = " fts fts_solr notify stats virtual" > mail_privileged_group = mail > mail_server_admin = mailto:ler@lerctr.org > mail_server_comment = LERCTR Mail Server > 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 vacation-seconds editheader > mboxmetadata servermetadata imapsieve vnd.dovecot.imapsieve > namespace archive { > hidden = no > list = no > location = mbox:~/MAIL-ARCHIVE > prefix = ARCHIVE/ > separator = / > } > namespace inbox { > inbox = yes > location = > mailbox Drafts { > special_use = \Drafts > } > mailbox INBOX { > auto = create > } > mailbox SENT { > special_use = \Sent > } > mailbox SPAM { > special_use = \Junk > } > mailbox "Sent Messages" { > special_use = \Sent > } > mailbox Trash { > special_use = \Trash > } > mailbox virtual/Flagged { > special_use = \Flagged > } > mailbox virtual/all { > special_use = \All > } > prefix = > } > namespace virtual { > hidden = no > list = yes > location = virtual:~/MAIL-VIRTUAL:INDEX=MEMORY > prefix = Virtual/ > separator = / > } > passdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > passdb { > args = user=%Ln noauthenticate > driver = static > skip = authenticated > } > passdb { > args = failure_show_msg=yes session=yes max_requests=20 > driver = pam > skip = authenticated > } > plugin { > fts = solr > fts_autoindex = yes > fts_solr = url=http://thebighonker.lerctr.org:8983/solr/dovecot/ > fts_tika = http://localhost:9998/tika/ > imapsieve_mailbox1_before = file:/usr/local/share/dovecot- > pigeonhole/sieve/report-spam.sieve > imapsieve_mailbox1_causes = COPY > imapsieve_mailbox1_name = SPAM > imapsieve_mailbox2_before = file:/usr/local/share/dovecot- > pigeonhole/sieve/report-ham.sieve > imapsieve_mailbox2_causes = COPY > imapsieve_mailbox2_from = SPAM > imapsieve_mailbox2_name = * > imapsieve_url = sieve://thebighonker.lerctr.org > mail_log_events = delete undelete expunge copy mailbox_delete > mailbox_rename flag_change append > mail_log_fields = uid box msgid size from subject vsize flags > recipient_delimiter = + > sieve = ~/.dovecot.sieve > sieve_dir = ~/sieve > sieve_execute_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve > sieve_extensions = +editheader +vacation-seconds +mboxmetadata > +servermetadata > sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute > sieve_pipe_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve > sieve_plugins = sieve_imapsieve sieve_extprograms > stats_command_min_time = 1 mins > stats_domain_min_time = 12 hours > stats_ip_min_time = 12 hours > stats_memory_limit = 16 M > stats_refresh = 5s > stats_session_min_time = 15 mins > stats_track_cmds = yes > stats_user_min_time = 1 hours > } > protocols = imap pop3 lmtp sieve > service auth { > unix_listener auth-client { > mode = 0666 > } > unix_listener auth-master { > mode = 0666 > } > } > service doveadm { > inet_listener http { > port = 8080 > ssl = yes > } > } > service indexer-worker { > drop_priv_before_exec = yes > } > 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 stats { > chroot = empty > client_limit = 0 > drop_priv_before_exec = no > executable = stats > extra_groups = > fifo_listener stats-mail { > group = > mode = 0666 > user = > } > fifo_listener stats-user { > group = > mode = 0666 > user = > } > group = > idle_kill = 4294967295 secs > privileged_group = > process_limit = 1 > process_min_avail = 0 > protocol = > service_count = 0 > type = > unix_listener stats { > group = > mode = 0666 > user = > } > user = $default_internal_user > vsz_limit = 18446744073709551615 B > } > service tcpwrap { > unix_listener login/tcpwrap { > group = $default_login_user > mode = 0600 > user = $default_login_user > } > } > ssl_cert = </home/ler/letsencrypt-home/lerctr.org/fullchain.cer > ssl_cipher_list = EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384: > EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256: > EECDH+AESGCM:EECDH:EDH+AESGCM:EDH+aRSA:HIGH:!MEDIUM:!LOW:! > aNULL:!eNULL:!LOW:!RC4:!MD5:!EXP:!PSK:!SRP:!DSS > ssl_key = # hidden, use -P to show it > ssl_protocols = !SSLv2 !SSLv3 > userdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > userdb { > args = username_format=%Ln /etc/passwd > driver = passwd-file > } > verbose_proctitle = yes > protocol lmtp { > mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" > } > protocol lda { > mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" > } > protocol pop3 { > mail_plugins = " fts fts_solr notify stats virtual mail_log" > } > protocol !doveadm { > mail_plugins = " fts fts_solr notify stats virtual mail_log" > } > protocol imap { > imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags > imap_logout_format = in=%i out=%o fhc=%{fetch_hdr_count} > fhb=%{fetch_hdr_bytes} fbc=%{fetch_body_count} fbb=%{fetch_body_bytes} > del=%{deleted} exp=%{expunged} trash=%{trashed} > imap_metadata = yes > mail_max_userip_connections = 50 > mail_plugins = " fts fts_solr notify stats virtual mail_log imap_sieve > imap_stats stats" > } > lrosenman:~ lrosenman$ >

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observium graphs
by Thomas Reifferscheid 18 Jul '17

18 Jul '17

Hello dovecot list, I'm in the middle of creating a plugin for observium[1] and would like to have it create[2] statistical graphs of my dovecot server [3]. The current state can be found here: https://image.ibb.co/efOO9a/dovecot.png However for visibility purposes it doesnt make sense and have observium plot two data sources with different orders of magnitudes right into one graph. So I'd like to ask for your valuable recommendations as for: - What kind of data should be graphed? Global stats or on a per domain level? - What data types to graph? (e.g. stats, getrusage, io, storage, auth check https://wiki2.dovecot.org/Statistics#line-65 for details) - What values should be combined into a single graph? - How often would you reset stats (cronjob calling doveadm stats reset)? Thanks Thomas [1]: http://www.observium.org/ [2]: http://docs.observium.org/apps/ [3]: http://docs.observium.org/developing/add_app/

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Re: SQLite user database
by Joseph Tam 17 Jul '17

17 Jul '17

Lev <leventelist(a)gmail.com> wrote: > Yes, that was a bit odd. Same password, different hash. Even with > verify tool, there was mismatch. So I decided to go for SHA512, > without encryption. Using user@domain as your ID solved your problem, and this side issue of which hash scheme you're using is probably irrelevant. You misunderstand what {SHA512-CRYPT} does compared with {SHA512}. It is normal to get a different hash with the same password when you regenerate the hash because a different random salt was chosen (the part between the '$6$' and the next '$') -- it used as part of the hash computation. {SHA512} is a straight saltless hash -- the same password maps to the same hash. This makes it prone to dictionary attacks (i.e. pre-generated tables of plaintext/hash values). If you support both schemes, SHA512-CRYPT is much stronger. Joseph Tam <jtam.home(a)gmail.com>

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tagged director -
by Matt Bryant 17 Jul '17

17 Jul '17

Hey, Does anyone know how the new(ish) director tags work in respect to which one is select for a user ?? Is there a query or field returned on userdb lookup to specify the director tag to use ??? rgds Matt

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