[Postfixbuch-users] postfix/smtpd:?SASLLOGINauthenticationfailed: authentication failure

Patrick Ben Koetter p at state-of-mind.de
Di Jan 15 08:50:34 CET 2008


* Christopher Dove <dove at sim-hiorg.de>:
> 
> saslfinger - postfix Cyrus sasl configuration Tue Jan 15 07:17:03 CET 2008
> version: 1.0.5
> mode: server-side SMTP AUTH
> 
> -- basics --
> Postfix: 2.3.8
> System: Debian GNU/Linux 4.0 \n \l
> 
> -- smtpd is linked to --
> 	libsasl2.so.2 => /usr/lib/libsasl2.so.2 (0x00002b23525c8000)
> 
> -- active SMTP AUTH and TLS parameters for smtpd --
> broken_sasl_auth_clients = yes
> smtpd_sasl_auth_enable = yes
> smtpd_sasl_local_domain = $myhostname
> smtpd_sasl_security_options = noanonymous
> 
> 
> -- listing of /usr/lib64/sasl2 --

okay

> 
> -- listing of /usr/lib/sasl2 --
okay


> -- listing of /etc/postfix/sasl --
> total 12
> drwxr-xr-x 2 root root 4096 2007-11-08 21:20 .
> drwxr-xr-x 4 root root 4096 2008-01-03 23:58 ..
> -rw-r--r-- 1 root root  632 2008-01-14 11:28 smtpd.conf
> 
> 
> 
> 
> -- content of /etc/postfix/sasl/smtpd.conf --

aufräumen!

> #pwcheck_method: auxprop
> #saslauthd_path: /var/run/saslauthd/mux
> #mech_list: plain login
> #log_level: 3
> #auxprop_plugin: mysql
> #allow_plaintext: true
> #srp_mda: md5
> #password_format: md5
> #sql_engine: mysql
> #sql_hostnames: 127.0.0.1
> sql_user: --- replaced ---
> sql_passwd: --- replaced ---
> #sql_database: postfix
> #sql_select: select password from mailbox where username='%u@%r'
> 
> pwcheck_method: auxprop
> mech_list: PLAIN LOGIN CRAM-MD5 DIGEST-MD5
> auxprop_plugin: sql
> sql_engine: mysql
> sql_hostnames: 127.0.0.1
> sql_user: --- replaced ---
> sql_passwd: --- replaced ---
> sql_database: postfix
> sql_select: select password from mailbox where username='%u@%r'
> -- content of /etc/postfix/sasl/smtpd.conf --
> #pwcheck_method: auxprop
> #saslauthd_path: /var/run/saslauthd/mux
> #mech_list: plain login
> #log_level: 3
> #auxprop_plugin: mysql
> #allow_plaintext: true
> #srp_mda: md5
> #password_format: md5
> #sql_engine: mysql
> #sql_hostnames: 127.0.0.1
> sql_user: --- replaced ---
> sql_passwd: --- replaced ---
> #sql_database: postfix
> #sql_select: select password from mailbox where username='%u@%r'
> 
> pwcheck_method: auxprop
> mech_list: PLAIN LOGIN CRAM-MD5 DIGEST-MD5
> auxprop_plugin: sql
> sql_engine: mysql
> sql_hostnames: 127.0.0.1
> sql_user: --- replaced ---
> sql_passwd: --- replaced ---
> sql_database: postfix
> sql_select: select password from mailbox where username='%u@%r'
> 
> -- active services in /etc/postfix/master.cf --
> # service type  private unpriv  chroot  wakeup  maxproc command + args
> #               (yes)   (yes)   (yes)   (never) (100)
> smtp      inet  n       -       n       -       -       smtpd
> pickup    fifo  n       -       -       60      1       pickup
> cleanup   unix  n       -       -       -       0       cleanup
> qmgr      fifo  n       -       -       300     1       qmgr
> rewrite   unix  -       -       -       -       -       trivial-rewrite
> bounce    unix  -       -       -       -       0       bounce
> defer     unix  -       -       -       -       0       bounce
> trace     unix  -       -       -       -       0       bounce
> verify    unix  -       -       -       -       1       verify
> flush     unix  n       -       -       1000?   0       flush
> proxymap  unix  -       -       n       -       -       proxymap
> smtp      unix  -       -       n       -       -       smtp
> relay     unix  -       -       -       -       -       smtp
> showq     unix  n       -       -       -       -       showq
> error     unix  -       -       -       -       -       error
> local     unix  -       n       n       -       -       local
> virtual   unix  -       n       n       -       -       virtual
> lmtp      unix  -       -       n       -       -       lmtp
> anvil     unix  -       -       n       -       1       anvil
> amavis    unix  -       -       -       -       2       smtp
>          -o smtp_data_done_timeout=1200
>          -o smtp_send_xforward_command=yes
> amavisd    unix  -       -       -       -       2       smtp
>          -o smtp_data_done_timeout=1200
>          -o smtp_send_xforward_command=yes
> 127.0.0.1:10025 inet n - - - - smtpd
>     -o content_filter=
>     -o local_recipient_maps=
>     -o relay_recipient_maps=
>     -o smtpd_restriction_classes=
>     -o smtpd_client_restrictions=
>     -o smtpd_helo_restrictions=
>     -o smtpd_sender_restrictions=
>     -o smtpd_recipient_restrictions=permit_mynetworks,reject
>     -o mynetworks=127.0.0.0/8
>     -o strict_rfc821_envelopes=yes
>     -o
> receive_override_options=no_unknown_recipient_checks,no_header_body_checks
> maildrop  unix  -       n       n       -       -       pipe
>   flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
> uucp      unix  -       n       n       -       -       pipe
>   flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
> ($recipient)
> ifmail    unix  -       n       n       -       -       pipe
>   flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
> bsmtp     unix  -       n       n       -       -       pipe
>   flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -d -t$nexthop -f$sender
> $recipient
> scalemail-backend unix	-	n	n	-	2	pipe
>   flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
> ${nexthop} ${user} ${extension}
> 
> scache    unix  -       -       -       -       1       scache
> discard   unix  -       -       -       -       -       discard
> 
> -- mechanisms on localhost --
> 250-AUTH DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
> 250-AUTH=DIGEST-MD5 CRAM-MD5 LOGIN PLAIN

okay.

Lad Dir gen-auth <http://www.jetmore.org/john/code/gen-auth> runter, und führe
es aus, um Dir einen Authentifizierungsstring zu bauen:

$ gen-auth plain
username: foo at example.de
password:
Auth String: AGZvb0BleGFtcGxlLmRlAGJhcg==

Dann telnet auf Deinen Server, sage EHLO und dann "AUTH PLAIN
AGZvb0BleGFtcGxlLmRlAGJhcg==". Was sagt er dann?

$ telnet localhost 25
220 mail.state-of-mind.de ESMTP Postfix (2.5-20071006)
EHLO foo
250-mail.state-of-mind.de
250-PIPELINING
250-SIZE 40960000
250-ETRN
250-STARTTLS
250-AUTH PLAIN CRAM-MD5 LOGIN DIGEST-MD5
250-AUTH=PLAIN CRAM-MD5 LOGIN DIGEST-MD5
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
AUTH PLAIN AGZvb0BleGFtcGxlLmRlAGJhcg==
535 5.7.8 Error: authentication failed: authentication failure
QUIT
221 2.0.0 Bye
Connection closed by foreign host.

p at rick


> 
> 
> -- end of saslfinger output --
> 
> 
> 
> On Mon, 14 Jan 2008 21:15:04 +0100, Patrick Ben Koetter
> <p at state-of-mind.de> wrote:
> > 
> > Bitte aktuellen config-Stand mit saslfinger -s ausgeben.
> > 
> > p at rick
> > 
> > -- 
> > Postfix - Einrichtung, Betrieb und Wartung
> > <http://www.postfix-buch.com>
> > saslfinger (debugging SMTP AUTH):
> > <http://postfix.state-of-mind.de/patrick.koetter/saslfinger/>
> > -- 
> > _______________________________________________
> > Postfixbuch-users -- http://www.postfixbuch.de
> > Heinlein Professional Linux Support GmbH
> > 
> > Postfixbuch-users at listi.jpberlin.de
> > https://listi.jpberlin.de/mailman/listinfo/postfixbuch-users
> -- 
> Mit freundlichen Grüßen
> Christopher Dove
> 
> www.Sim-Hiorg.de
> 
> -- 
> _______________________________________________
> Postfixbuch-users -- http://www.postfixbuch.de
> Heinlein Professional Linux Support GmbH
> 
> Postfixbuch-users at listi.jpberlin.de
> https://listi.jpberlin.de/mailman/listinfo/postfixbuch-users

-- 
Postfix - Einrichtung, Betrieb und Wartung
<http://www.postfix-buch.com>
saslfinger (debugging SMTP AUTH):
<http://postfix.state-of-mind.de/patrick.koetter/saslfinger/>



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