[freetds] NTLMv2 support for domain logins using freetds

ZIGLIO, Frediano, VF-IT Frediano.Ziglio at vodafone.com
Fri Jul 25 05:41:35 EDT 2008


> 
> Freddy,
> 
> Thanks a lot for quick response. I was working all day today 
> upgrading to
> FreeTDS 0.82 (I had 0.63 before) and reinstalled DBD::Sybase
> Unfortunately I am getting the same error message even after 
> this updrade si
> looks like I am missing something here, Hope you can point me on this.
> Please take a look at details below:
> 
>  1. All Windows servers in our network configured with: "Send ntlm v2
> response only"
> 2. Platforms and settings
> 
> Was FreeTDS 0.63 On Solaris 10 (SunOS 5.10) before today but I have
> recompiled now with FreeTDS 0.82  (and re-installed DBD:Sybase
> 
> echo $SYBASE
> /usr/local/freetds
> 
> freetds.conf:
> ======================================
> 
>       tds version = 8.0
> 
>       dump file = /tmp/freetds.log
>       debug flags = 0xffff
> 
>       timeout = 10
>       connect timeout = 10
> 
>        text size = 64512
> 
> [NYCITASD0060]
>       host = NYCITASD0060.us.db.com <http://nycitasd0060.us.db.com/>
>       port = 1433
> 
> ========================================
> 
> 3. I can successfully login using database level 
> authentication (database
> level user ID):
> 
>  $ /usr/local/freetds/bin/tsql -SNYCITASD0060  -Udb_tools 
> -P<...pwd...>
> locale is
> "/en_US.ISO8859-1/en_US.ISO8859-1/C/en_US.ISO8859-1/en_US.ISO8859-1/C"
> locale charset is "ISO8859-1"
> 1> select @@servername
> 2> go
> 
> NYCITASD0060
> (1 row affected)
> 
> 4. Now I tried to connect as user 'FIAKHAL' which belongs to 
> domain 'DBG'
> 
> /usr/local/freetds/bin/tsql -SNYCITASD0060  -U'DBG\FIAKHAL' <domain
> password>' -I./interf.conf
> locale is
> "/en_US.ISO8859-1/en_US.ISO8859-1/C/en_US.ISO8859-1/en_US.ISO8859-1/C"
> locale charset is "ISO8859-1"
> Msg 18452, Level 14, State 1, Server , Line 0
> Login failed for user '(null)'. Reason: Not associated with a 
> trusted SQL
> Server connection.
> Msg 20002, Level 9, State -1, Server OpenClient, Line -1
> Adaptive Server connection failed
> There was a problem connecting to the server
> 
> $ cat dumpconfig.log
> ===================================================
> log.c:190:Starting log file for FreeTDS 0.82
>        on 2008-07-24 17:20:40 with debug flags 0x4fff.
> config.c:172:Getting connection information for [NYCITASD0060].
> config.c:181:Attempting to read conf files.
> config.c:253:Found conf file './interf.conf' set programmatically.
> config.c:398:Looking for section global.
> config.c:455:   Found section nycitasd0060.
> config.c:469:   Reached EOF
> config.c:398:Looking for section NYCITASD0060.
> config.c:455:   Found section nycitasd0060.
> config.c:458:Got a match.
> config.c:479:   host = 
> 'NYCITASD0060.us.db.com<http://nycitasd0060.us.db.com/>
> '
> config.c:508:Found host entry
> NYCITASD0060.us.db.com<http://nycitasd0060.us.db.com/>
> .
> config.c:512:IP addr is 10.152.37.113.
> config.c:479:   port = '1433'
> config.c:469:   Reached EOF
> config.c:257:Success: [NYCITASD0060] defined in ./interf.conf.
> config.c:558:tds_config_login: client_charset is ISO8859-1.
> config.c:195:Final connection parameters:
> config.c:196:            server_name = NYCITASD0060
> config.c:197:                   port = 1433
> config.c:198:          major_version = 8
> config.c:199:          minor_version = 0
> config.c:200:             block_size = 0
> config.c:201:               language = us_english
> config.c:202:         server_charset =
> config.c:203:        connect_timeout = 0
> config.c:204:       client_host_name = nygmwsp011.us.db.com
> config.c:205:               app_name = TSQL
> config.c:206:              user_name = DBG\FIAKHAL
> config.c:209:                library = TDS-Library
> config.c:210:              bulk_copy = 0
> config.c:211:      suppress_language = 0
> config.c:212:          encrypt level = 0
> config.c:213:          query_timeout = 0
> config.c:216:         client_charset = ISO8859-1
> config.c:217:                ip_addr = 10.152.37.113
> config.c:218:          instance_name =
> config.c:219:               database =
> config.c:220:              dump_file =
> config.c:221:            debug_flags = 0
> config.c:222:              text_size = 0
> config.c:223:           broken_dates = 0
> config.c:224:           broken_money = 0
> config.c:225:     emul_little_endian = 0
> ===================================================
> 
> Please help...!
> Regards,
> =Alek
> 

Mmm... could you please send me a network trace of unsuccessful login? Login packets are
disabled in libTDS code. I usually use tcpdump or wireshark. The syntax should be

tcpdump -i interface -s 2000 -w out.dat port 1433

(at least under Linux it works).

Use a test account or is better to send it to me privately. Keep in mind that this packet
contains username, domains, machine name and encrypted password.

freddy77
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