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[SOLVE] Upgrade dovecot-1 to dovecot-2.2: Mail delivery brok
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hoacker
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Joined: 04 Aug 2007
Posts: 482
Location: Bürstadt, Germany

PostPosted: Mon Aug 25, 2014 5:54 pm    Post subject: [SOLVE] Upgrade dovecot-1 to dovecot-2.2: Mail delivery brok Reply with quote

Hi everybody.

This is my second evening asking google, reading and trying to fix my mail server but I just can't get it.

After roughly half a years of not updating my server I took a heart and updated last weekend. One of the updates was dovecot-1.2.17
to dovecot-2.2.13-r1. As I see from emerge log I tried updating to dovecot-2.0 in may 2011 but reverted to dovecot-1.2. because of problems which I ran into last weekend again, most likely.

Current setup:
Code:
net-mail/dovecot-2.2.13-r1  USE="bzip2 caps imapc kerberos maildir mysql ssl tcpd zlib -cydir -doc -ipv6 -ldap -lucene -lz4 -lzma -managesieve -mbox -mdbox -pam -pop3c -postgres -sdbox (-selinux) -sieve -solr -sqlite -static-libs -suid -vpopmail"
dev-libs/cyrus-sasl-2.1.26-r3:2  USE="berkdb gdbm kerberos mysql pam ssl -authdaemond -java -ldapdb -openldap -postgres -sample -sqlite -srp -static-libs -urandom"
mail-mta/postfix-2.10.3  USE="berkdb dovecot-sasl mysql sasl ssl -cdb -doc -hardened -ldap -ldap-bind -mbox -memcached -nis -pam -postgres (-selinux) -sqlite -vda"

I followed this guide to migrate config files: http://wiki2.dovecot.org/Upgrading/2.0.

Now I have authentication problems.

I had cyrus-sasl compile with USE=-pam but got the following error. I got rid of this message with USE=pam:
Code:
saslauthd[2939]: set_auth_mech   : unknown authentication mechanism: pam


Postfix trying to deliver mail show these messages:
Code:
Aug 25 19:51:21 localhost dovecot: lda: Error: userdb lookup(*email-address removed*): Request timed out
Aug 25 19:51:21 localhost dovecot: lda: Fatal: Internal error occurred. Refer to server log for more information.
Aug 25 19:51:22 localhost postfix/pipe[3460]: 4CB05888E37: to=<*email-address removed*>, relay=dovecot, delay=7522, delays=6578/788/0/156, dsn=4.3.0, status=deferred (temporary failure)


Login via IMAP fails:
Code:
[19:31:05] IMAP4< * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN
[19:31:05] IMAP4< 1 OK Pre-login capabilities listed, post-login capabilities have more.
[19:31:05] IMAP4> Logging *email-address removed* to *server-address removed* using LOGIN
** IMAP Fehler auf *server-address removed*: stream error
** IMAP4-Verbindung unterbrochen
[19:32:35] IMAP4< Error logging in to *server-address removed*


dovecot -n:
Code:

# 2.2.13: /etc/dovecot/dovecot.conf
# OS: Linux 3.12.13-gentoo x86_64 Gentoo Base System release 2.2 reiserfs
disable_plaintext_auth = no
first_valid_gid = 12
first_valid_uid = 8
last_valid_gid = 12
last_valid_uid = 8
listen = *
mail_gid = mail
mail_location = maildir:/var/mail/%d/%n/Maildir/:INDEX=/var/mail/%d/%n/indexes
mail_uid = mail
passdb {
  args = /etc/dovecot/dovecot-sql.conf
  driver = sql
}
protocols = imap
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-master {
    group = mail
    mode = 0600
    user = mail
  }
  user = nobody
}
ssl_cert = </etc/ssl/dovecot/server.pem
ssl_key = </etc/ssl/dovecot/server.key
userdb {
  driver = passwd
}
userdb {
  args = /etc/dovecot/dovecot-sql.conf
  driver = sql
}
protocol imap {
  mail_plugins = quota imap_quota
}
protocol pop3 {
  mail_plugins = quota
}
protocol lda {
  mail_plugins = quota
  postmaster_address = *email address removed*
}


Anybody can help?


Last edited by hoacker on Mon Aug 25, 2014 6:52 pm; edited 1 time in total
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hoacker
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Joined: 04 Aug 2007
Posts: 482
Location: Bürstadt, Germany

PostPosted: Mon Aug 25, 2014 6:23 pm    Post subject: Reply with quote

Seems I found the problem (why does it always happen shortly after I posted in this forum?). I uncommented the "user" line in /etc/dovecot/conf.d/10-master.conf

Code:

service auth {

  # [..]

  # Auth process is run as this user.
  user = $default_internal_user
}


I can IMAP and the mails are coming in...
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hoacker
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Guru


Joined: 04 Aug 2007
Posts: 482
Location: Bürstadt, Germany

PostPosted: Mon Aug 25, 2014 6:43 pm    Post subject: Reply with quote

No, still doesn't work but getting closer.

I get this error:
Code:
localhost dovecot: auth: Error: net_connect_unix(auth-worker) in directory /run/dovecot failed: Permission denied (euid=65534(nobody) egid=65534(nobody) missing +r perm: /run/dovecot/auth-worker, dir owned by 0:0 mode=0755)


File permissions:
Code:
srw-------  1 dovecot root       0 25. Aug 20:37 auth-worker


I tried different entries in conf.d/10-master.conf but could't figure out the right one. Current:
Code:
service auth-worker {
  user = dovecot

  unix_listener auth-worker {
    user = dovecot
  }
}



EDIT:

OK, found the culplit. Changed dovecot.conf from
Code:
service auth {
  [..]
  user = nobody
}


to

Code:
service auth {
  [..]
  user = dovecot
}
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