[Dovecot] Problem after migration dovecot 1.2 -> dovecot 2.0

Wed Jan 12 13:34:06 EET 2011

     I have migrated from dovecot 1.2 to dovecot 2.0. When I connect via 
telnet to 110 port of the dovecot server the client hangs:

telnet 192.168.4.80 110

Trying 192.168.4.80...
/Connected to 192.168.4.80.
Escape character is '^]'./


     In syslog I got the following error:


/Jan 12 12:14:44 buzon dovecot: imap-login: Error: auth: connect(login) 
in directory / failed: Permission denied (euid=107(<unknown>) 
egid=110(<unknown>) missing +x perm: /, euid is not dir owner)/


     My /var/run/dovecot directory listing is the following:


  ls -lhR /var/run/dovecot

//var/run/dovecot:
total 12K
srw------- 1 root    root    0 ene 12 11:40 anvil
srw------- 1 root    root    0 ene 12 11:40 anvil-auth-penalty
srw------- 1 root    root    0 ene 12 11:40 auth-client
srw------- 1 dovecot root    0 ene 12 11:40 auth-login
srw------- 1 entrega root    0 ene 12 11:40 auth-master
srw------- 1 entrega root    0 ene 12 11:40 auth-userdb
srw------- 1 dovecot root    0 ene 12 11:40 auth-worker
srw------- 1 root    root    0 ene 12 11:40 config
srw------- 1 root    root    0 ene 12 11:40 dict
srwxrwxrwx 1 root    root    0 dic 27 21:36 dict-server
srw------- 1 root    root    0 ene 12 11:40 director-admin
srw------- 1 root    root    0 ene 12 09:17 director-userdb
srw-rw-rw- 1 root    root    0 ene 12 11:40 dns-client
srw------- 1 root    root    0 ene 12 11:40 doveadm-server
lrwxrwxrwx 1 root    root   25 ene 12 11:40 dovecot.conf -> 
/etc/dovecot/dovecot.conf
drwxr-xr-x 2 root    root 4,0K ene 12 09:05 empty
drwxr-x--- 2 root    root 4,0K ene 12 11:40 login
-rw------- 1 root    root    6 ene 12 11:40 master.pid

/var/run/dovecot/empty:
total 0

/var/run/dovecot/login:
total 4,0K
srw-rw-rw- 1 root root   0 ene 12 11:40 dns-client
srw-rw-rw- 1 root root   0 ene 12 11:40 imap
srw-rw-rw- 1 root root   0 ene 12 11:40 login
srw-rw-rw- 1 root root   0 ene 12 11:40 pop3
srw-rw-rw- 1 root root   0 ene 12 11:40 sieve
-rw-r--r-- 2 root root 230 ene  9 20:56 ssl-parameters.dat
srw-rw-rw- 1 root root   0 ene 12 11:40 ssl-params
/


     My doveconf -n is the following:
/
# OS: Linux 2.6.18-194.26.1.el5 x86_64 Red Hat Enterprise Linux Server 
release 5.5 (Tikanga) ext3
auth_debug = yes
auth_master_user_separator = *
auth_mechanisms = plain login
base_dir = /var/run/dovecot/
default_client_limit = 4096
default_process_limit = 2500
disable_plaintext_auth = no
dotlock_use_excl = yes
mail_fsync = never
mail_gid = entrega
mail_location = 
maildir:/buzones/us.es/%2.26Hn/%2.200Hn/%n:INDEX=/buzones/ramdisk/%2.26Hn/%2.200Hn/%n
mail_plugins = " zlib"
mail_uid = entrega
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
passdb {
   driver = shadow
}
passdb {
   args = /etc/dovecot/dovecot-ldap.conf
   driver = ldap
}
passdb {
   args = /etc/usuario_maestro.txt
   driver = passwd-file
   master = yes
}
passdb {
   args = /etc/dovecot/dovecot-ldap.conf
   driver = ldap
}
plugin {
   quota = maildir:Cuota de usuario
   quota_rule2 = Trash:storage=+10%%
   quota_warning = storage=95%% /usr/local/bin/quota-warning.sh 95
   quota_warning2 = storage=80%% /usr/local/bin/quota-warning.sh 80
   sieve = /buzones/us.es/%2.26Hn/%2.200Hn/%n/dovecot.sieve
   sieve_dir = /buzones/us.es/%2.26Hn/%2.200Hn/%n/sieve/
   zlib_save = gz
   zlib_save_level = 9
}
protocols = pop3 imap sieve
service auth {
   unix_listener auth-master {
     user = entrega
   }
   unix_listener auth-userdb {
     user = entrega
   }
   user = root
}
service imap-login {
   executable = /usr/libexec/dovecot/imap-login
   process_limit = 2000
}
service imap {
   executable = /usr/libexec/dovecot/rawlog /usr/libexec/dovecot/imap
   process_limit = 2000
}
service managesieve-login {
   executable = /usr/libexec/dovecot/managesieve-login
   inet_listener sieve {
     port = 2000
   }
   process_limit = 2000
}
service managesieve {
   executable = /usr/libexec/dovecot/managesieve
   process_limit = 2000
}
service pop3-login {
   executable = /usr/libexec/dovecot/pop3-login
   process_limit = 2000
}
service pop3 {
   executable = /usr/libexec/dovecot/pop3
   process_limit = 2000
}
ssl_ca = </etc/pki/generico/cacert.crt.pem
ssl_cert = </etc/pki/generico/wildcard-us_es.crt
ssl_key = </etc/pki/generico/wildcard-key.pem
userdb {
   driver = passwd
}
userdb {
   args = /etc/dovecot/dovecot-ldap.conf
   driver = ldap
}
userdb {
   args = /etc/dovecot/dovecot-ldap-userdb.conf
   driver = ldap
}
verbose_proctitle = yes
protocol sieve {
   managesieve_implementation_string = dovecot
   managesieve_logout_format = bytes=%i/%o
   managesieve_max_line_length = 65536
}
protocol lda {
   hostname = us.es
   info_log_path =
   log_path =
   mail_fsync = optimized
   mail_plugins = quota sieve zlib
   postmaster_address = evcorreo at us.es
   syslog_facility = mail
}
protocol imap {
   mail_plugins = quota imap_quota zlib
}
protocol pop3 {
   mail_plugins = zlib
   pop3_enable_last = yes
   pop3_uidl_format = %08Xv%08Xu
}


/UID & GID of my users:

[root at buzon login]# id entrega
uid=500(entrega) gid=500(entrega) grupos=500(entrega)
[root at buzon login]# id dovecot
uid=104(dovecot) gid=107(dovecot) grupos=107(dovecot)
[root at buzon login]# id dovenull
uid=107(dovenull) gid=110(dovenull) grupos=110(dovenull)


     What am I doing wrong? I have migrated a identical server from 
dovecot 1.2 to dovecot 2.0 without this problem.

     Regards

     Javier