Re: does xfer require murder?

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Bascially:

Cyrus Imapd uses a SASL mechanism to talk between cyrus machines.
The SASL mechanism you are using is PLAIN (I don't think LOGIN is a SASL mechanism, its a imap specific) 
PLAIN requires TLS
TLS requires certificates.
You don't have certificates.

if
imtest -t "" -m PLAIN -a cyrus -u cyrus servername

does not work, then xfer never will.


Get a cert! :)

-Patrick
On Apr 21, 2006, at 4:30 PM, Perry Brown wrote:
Sorry to keep bugging everyone on this but it seems I am close I'm just over looking something obvious. 

I looked through the config on the hosts and we are using pam.


I changed the imapd.conf a little
defaultpartition: imap1
configdirectory: /var/imap
partition-imap1: /var/spool/imap1
admins: cyrus support
srvtab: /var/imap/srvtab
quotawarn: 85
popminpoll: 0
autocreatequota: 30000
sasl_pwcheck_method: saslauthd
lmtp_over_quota_perm_failure: 1
allowusermoves: yes
proxy_authname: cyrus
proxy_password: password
force_sasl_client_mech: LOGIN PLAIN


Imtest looks to work Ok with Login

server1.sub1% /opt/mail/cyrus-imapd/bin/imtest -p imap -m login
WARNING: no hostname supplied, assuming localhost

S: * OK server1.sub1.domain.com Cyrus IMAP4 v2.2.8 server ready
C: C01 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX- REFERRALS NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE AUTH=GSSAPI AUTH=DIGEST-MD5 AUTH=CRAM-MD5 SASL-IR LISTEXT LIST-SUBSCRIBED X-NETSCAPE 
S: C01 OK Completed
Please enter your password:
C: L01 LOGIN cyrus {8}
S: + go ahead
C: <omitted>
S: L01 OK User logged in
Authenticated.
Security strength factor: 0

This works to the localhost as well as to server2.

I try the xfer from server1 to server2:
server1.sub1% /opt/mail/cyrus-imapd/bin/cyradm --user cyrus -- server server1.sub1 --auth login 
IMAP Password:
             server1.sub1.domain.com>
server1.sub1.domain.com> xfer user.vbperry server2.sub2
xfermailbox: Server(s) unavailable to complete operation

the log from server2 shows:
Apr 21 12:56:31 server2 imap[27408]: badlogin: server1.sub1.domain.com [10.12.12.12] PLAIN [SASL(-4): no mechanism available: security flags do not match required] 

/etc/sysconfig/saslauthd
MECH=pam
FLAGS=${FLAGS:=}
Is there a doc on the sysconfig/saslauthd flags? I looked through the docs that came with cyrus-imap and cyrus-sasl and did not find anything.
From server1 I can log into server2 with imtest, testsaslauthd works OK as
well. What security flags do not match? Is there a way to kick up the verbosity of the logging to see if that would give a clue? 


Perry



I tried with plain: /opt/mail/cyrus-imapd/bin/imtest -m plain -p imap

And it got rejected.

C: A01 AUTHENTICATE PLAIN Y3lyaW1hcABjeXJpbWFwAGpTdXZTMTFz
S: A01 NO no mechanism available
Authentication failed. generic failure
Security strength factor: 0


I can not find a tls conf file so I do not thing starttls is set up.

I added the entry mentioned to imapd.conf
$ cat /etc/imapd.conf
defaultpartition: imap1
configdirectory: /var/imap
partition-imap1: /var/spool/imap1
admins: cyrus support
srvtab: /var/imap/srvtab
quotawarn: 85
popminpoll: 0
autocreatequota: 30000
sasl_pwcheck_method: saslauthd
lmtp_over_quota_perm_failure: 1
allowusermoves: yes
proxy_authname: cyrus
proxy_password: password
force_sasl_client_mech: PLAIN

And it gets things furthur along then before
$ sudo /opt/mail/cyrus-imapd/bin/cyradm --user cyrus --server server1 --auth PLAIN 
domain.com authorized use only. vbperry@server1 Password:
Password:
IMAP Password:
             server1.sub1.domain.com>
server1.sub1.domain.com> xfer user.vbperry server2.sub2.domain.com
xfermailbox: Server(s) unavailable to complete operation

log on source:

Apr 20 17:42:05 server1 imap[1458]: accepted connection
Apr 20 17:42:07 server1 imap[1458]: badlogin: server1.ssub1.domain.com [10.12.12.12] PLAIN [SASL(-4): no mechanism available: security flags do not match required] Apr 20 17:42:14 server1 imap[1458]: login: server1.sub1.domain.com [10.12.12.12] cyrus plaintext User logged in Apr 20 17:42:41 server1 master[27630]: process 32354 exited, status 0 Apr 20 17:42:41 server1 master[2161]: about to exec /opt/mail/ cyrus-imapd/bin/imapd 
Apr 20 17:42:41 server1  imap[2161]: executed
Apr 20 17:42:55 server1 imap[1458]: couldn't authenticate to backend server: authentication failure Apr 20 17:42:55 server1 imap[1458]: Could not move mailbox: user.vbperry, Initial backend connect failed 



But I'm now at least seeing something on the destination server:
Apr 20 17:42:52 server2 imap[24375]: badlogin: server1.sub1.domain.com [10.12.12.12] PLAIN [SASL(-4): no mechanism available: security flags do not match required]
If I can take a step back (sorry I'm trying to decipher how the previous admin had things set up in the environment). The document on how this was set up states. 


cyrus-sasl was config'ed with

./configure --prefix=/opt/mail/cyrus-sasl \
   --enable-login --enable-plain --enable-cram \
   --enable-digest --with-bdb-incdir=/usr/include/db4 \
   --with-pam --enable-static=yes --enable-sample \
   --disable-java --disable-otp --disable-krb4 \
   --with-plugindir=/opt/mail/cyrus-sasl/lib/sasl2

The cyrus-sasl cyrus.conf states:
srvtab: /var/imap/srvtab <<< seems I could remove this since kerberos is disabled above. 
pwcheck_method: saslauthd


saslauthd is started in with pam support:
root 2060 0.0 0.0 2564 1036 ? S Apr14 0:00 / usr/sbin/saslauthd -m /var/run/saslauthd -a pam 

There is /etc/pam.d/imap and pop3 with the following content..
#%PAM-1.0
auth required /lib/security/pam_stack.so service=system- auth account required /lib/security/pam_stack.so service=system- auth
Cyrus-imap was compiled with (again what is in the notes from install from previoys admin)
CFLAGS=-I/usr/kerberos/include ./configure --prefix=/opt/mail/ cyrus-imapd \ 
   --with-cyrus-prefix=/opt/mail/cyrus-imapd \
   --with-cyrus-user=cyrimap \
   --with-cyrus-group=mail \
   --with-bdb-incdir=/usr/include/db4 \
   --build=i686-pc-linux-gnu \
   --with-sasl=/opt/mail/cyrus-sasl \
   --with-auth=unix \
   --enable-netscapehack \
   --enable-listext \
   --with-perl=/opt/third-party/bin/perl \
   --disable-murder


I can run a testsaslauthd and it works fine to the local host

server1.sub1% /usr/sbin/testsaslauthd -u cyrus -p password -R 3
0: OK "Success."
1: OK "Success."
2: OK "Success."
It seems I do not need to have a realm defined because we are using pam. and if I do a sasldbpasswd2 it says /etc/sasldb2 does not exist. This not seem to be the problem though since saslauthd is using pam. yes?
When I login into cyradm again locally with --auth plain I can do commands like listmailbox and such. I can't seem to be able to run "info" I just go back to the prompt on that one. 

What should my security flags be? What am I missing?

Thank you
perry
You need to use tls as well for PLAIN to work. add -t "" to your arguments
What mechanism do you want to use for connecting between backends? If its PLAIN then you want 
force_sasl_client_mech: PLAIN

in your imapd.conf file.
Otherwise, the machines will see GSSAPI advertised and will try using that. 

-Patrick





On Apr 20, 2006, at 5:19 PM, Perry Brown wrote:











Perry Brown wrote:

Thanks for the imtest idea.

It looks like I can log in OK.
server1.sub1% /opt/mail/cyrus-imapd/bin/imtest -m login -p imap server2.sub2.domain.com
Force imtest to use one of the SASL mechanisms that are listed. The backends *only* use SASL, not protocol specific login commands (IMAP LOGIN, POP3 USER/PASS, NNTP AUTHINFO USER/PASS). 



I'm sorry I got my dounce cap on today or something.
Should I change the -m login to -m and one of the AUTH= values from the CAPABILITY output? 
ie  -m GSSAPI? or digest-md5 etc...

Andy Morgan wrote:
Maybe "-m plain"?


thank you for the suggestion Andy but no luck.

server1.sub1% /opt/mail/cyrus-imapd/bin/imtest -m plain -p imap
WARNING: no hostname supplied, assuming localhost

S: * OK server1.sub1.domain.com Cyrus IMAP4 v2.2.8 server ready
C: C01 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX- REFERRALS NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE AUTH=GSSAPI AUTH=DIGEST-MD5 AUTH=CRAM-MD5 SASL-IR LISTEXT LIST-SUBSCRIBED X-NETSCAPE 
S: C01 OK Completed
Please enter your password:
C: A01 AUTHENTICATE PLAIN Y3lyaW1hcABjeXJpbWFwAGpTdXZTMTFz
S: A01 NO no mechanism available
Authentication failed. generic failure
Security strength factor: 0




I gave this a try with GSSAPI, and got nothing.

digest-md5,

server1.sub1% /opt/mail/cyrus-imapd/bin/imtest -m digest-md5
WARNING: no hostname supplied, assuming localhost

S: * OK server1.sub1.domain.com Cyrus IMAP4 v2.2.8 server ready
C: C01 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX- REFERRALS NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE AUTH=GSSAPI AUTH=DIGEST- MD5 AUTH=CRAM-MD5 SASL- IR LISTEXT LIST-SUBSCRIBED X-NETSCAPE 
S: C01 OK Completed
C: A01 AUTHENTICATE DIGEST-MD5
S:
wkrnfjknf (etc list of characters)
Please enter your password: (I enter passwd for cyrus)
C: dXNlcm5h (another long list of characters)
S: A01 NO user not found
Authentication failed. generic failure
Security strength factor: 128


This is what I see in local6.log on server1.sub1

Apr 20 11:04:32 server1 imap[17729]: accepted connection
Apr 20 11:04:38 server1 imap[17729]: badlogin: localhost.localdomain [127.0.0.1] DIGEST-MD5 [SASL(-13): user not found: no secret in database] 

This is in the auth.log
Apr 20 11:06:26 server1 imap[15971]: unable to open Berkeley db / etc/sasldb2: No such file or directory Apr 20 11:06:26 server1 imap[15971]: unable to open Berkeley db / etc/sasldb2: No such file or directory 
Apr 20 11:06:26 server1 imap[15971]: no secret in database



cram-md5 got me pretty much the same thing.
Is there a cyrus or sasl command I should/can run to get the auth for digest-md5 working? 


Perry






S: * OK server2.sub2.domain.com Cyrus IMAP4 v2.2.8 server ready
C: C01 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX- REFERRALS NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE AUTH=GSSAPI AUTH=DIGEST- MD5 AUTH=CRAM-MD5 SASL-IR LISTEXT LIST-SUBSCRIBED X-NETSCAPE 
S: C01 OK Completed
Please enter your password:
C: L01 LOGIN cyrus {8}
S: + go ahead
C: <omitted>
S: L01 OK User logged in
Authenticated.
Security strength factor: 0
CAPABILITY



----
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html



----
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html





----
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html



----
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html


----
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
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