Hello!
Dovecot version - 2.2.6
Postfix version - 2.10.2
OS: Mageia Linux 4 x86_64
I have configured Dovecot imaps-server on 993 port to authenticate users
via private certificates:
auth_ssl_require_client_cert = yes
auth_ssl_username_from_cert = no
Users' database is in OpenLDAP and in dovecot-ldap.conf.ext checking of
users' passwords is disabled:
pass_attrs = uid=%n, mail=%n@%d, =nopassword=1
It all works fine.
I have configured Postfix submission-service on 587 port to connect
users via StartTLS:
submission inet n - y - - smtpd
-o smtpd_tls_security_level=encrypt
-o smtpd_enforce_tls=yes
-o smtpd_tls_req_ccert=yes
-o smtpd_tls_ask_ccert=yes
-o smtpd_client_restrictions=permit_tls_all_clientcerts,reject
-o smtpd_recipient_restrictions=permit_tls_all_clientcerts,reject
-o smtpd_helo_restrictions=permit_tls_all_clientcerts,reject
It works fine.
And now I have a new task: I also need Postfix to authenticate
OpenLDAP-users using SASL on smtps-port 465. I need it for using on
mobile devices, which don't support StartTLS. So I have configured smtps
in Postfix:
smtps inet n - y - - smtpd
-o smtpd_tls_wrappermode=yes
-o smtpd_enforce_tls=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_sasl_type=dovecot
-o smtpd_sasl_path=private/auth
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
-o
smtpd_recipient_restrictions=permit_sasl_authenticated,reject_unauth_destination
-o smtpd_helo_restrictions=permit_sasl_authenticated,reject
While trying to connect to smtps, clients get an error: "Client didn't
present valid SSL certificate", and this is clear. The question is: how
to configure an additional auth-service in dovecot, which doesn't
require private certificates and authenticates users using login/password?
Configuration-files:
dovecot -n:
# 2.2.6: /etc/dovecot/dovecot.conf
# OS: Linux 3.14.43-server-1.mga4 x86_64 Mageia 4 ext4
auth_debug = yes
auth_debug_passwords = yes
auth_mechanisms = plain login
auth_socket_path = /var/run/dovecot/auth-userdb
auth_verbose = yes
base_dir = /var/run/dovecot/
first_valid_gid = 12
first_valid_uid = 8
hostname = myexample.com
last_valid_gid = 12
last_valid_uid = 8
listen = *
login_greeting = Dovecot L ready.
login_trusted_networks = 127.0.0.0/8 10.62.0.0/16
mail_debug = yes
mail_gid = 12
mail_home = /home/mail/%d/%n
mail_location = maildir:/home/mail/%d/%n
mail_uid = 8
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 ihave
namespace inbox {
inbox = 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 type = private
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
default_fields = homeDirectory=/home/mail/%d/%n
driver = ldap
}
plugin {
sieve = /home/mail/%d/%n/sieve/UsersActiveScript.sieve
sieve_before = /var/spool/mail/dovecot.sieve
sieve_default = /var/spool/mail/dovecot.sieve
sieve_dir = /home/mail/%d/%n/sieve
}
postmaster_address = admin at myexample.com
protocols = imap
service anvil {
type = anvil
unix_listener anvil-auth-penalty {
group = mail
mode = 0600
user = mail
}
unix_listener anvil {
mode = 0600
user = mail
}
}
service auth-worker {
user = $default_internal_user
}
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
unix_listener auth-userdb {
group = mail
mode = 0600
user = mail
}
}
service imap-login {
inet_listener imap {
port = 0
ssl = no
}
inet_listener imaps {
port = 993
ssl = yes
}
}
service pop3-login {
inet_listener pop3 {
port = 0
}
inet_listener pop3s {
port = 0
}
}
ssl_ca = </etc/pki/CA/private/dovecot-ca.pem
grep -v '^ *\(#.*\)\?$' /etc/dovecot/dovecot-ldap.conf.ext:
uris = ldap://localhost
dn = cn=service,ou=Systems,dc=myexample,dc=com
dnpass = SeCrEt
auth_bind = no
ldap_version = 3
base = ou=People,dc=myexample,dc=com
deref = never
scope = subtree
user_attrs = homeDirectory=home
user_filter = (&(mail=%n@%d)(uid=%n))
pass_attrs = uid=%n, mail=%n@%d, =nopassword=1
pass_filter = (&(mail=%n@%d)(uid=%n))
Kind regards, Damir