On Fri, Mar 20, 2015 at 11:44:43AM +0100, Bobby Prins wrote: > On Thu, Mar 19, 2015 at 04:46:44PM +0100, Bobby Prins wrote: > >> Hi there, > >> > >> I'm currently trying to use the 'AD Trust for Legacy Clients' freeIPA > >> setup (described here: > >> http://www.freeipa.org/images/0/0d/FreeIPA33-legacy-clients.pdf) to be > >> able to autenticate AIX 7.1 clients against an AD domain using LDAP. After > >> the trust was created all seems to work well on the freeIPA server. I can > >> also do a lookup of AD users and groups on an AIX test server. > >> > >> But as soon as I want to log in on the AIX system I get an SSSD error on > >> the freeIPA server in krb5_child.log (debug_level = 10): > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.590260: AS key > >> obtained for encrypted timestamp: aes256-cts/2F5D > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.590326: Encrypted > >> timestamp (for 1426778442.525165): plain > >> 301AA011180F32303135303331393135323034325AA105020308036D, encrypted > >> 9B3299264F09E50D63D84B385A09A4C64D44116A02B58FFF12830B39F88722CD9B792F5ABA0653578DE9138B91D29C17C197453D8B8A5E7A > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.590349: Preauth > >> module encrypted_timestamp (2) (flags=1) returned: 0/Success > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.590360: Produced > >> preauth for next request: 2 > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.590384: Sending > >> request (238 bytes) to EXAMPLE.CORP > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.591325: Resolving > >> hostname dct020.example.corp. > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.591889: Sending > >> initial UDP request to dgram 192.168.143.1:88 > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.636127: Received > >> answer from dgram 192.168.143.1:88 > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.636626: Response > >> was not from master KDC > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.636667: Received > >> error from KDC: -1765328360/Preauthentication failed > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.636698: Preauth > >> tryagain input types: 16, 14, 19, 2 > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.636728: Retrying AS > >> request with master KDC > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.636741: Getting > >> initial credentials for [email protected] > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] > >> [sss_child_krb5_trace_cb] (0x4000): [12775] 1426778442.636787: Sending > >> request (160 bytes) to EXAMPLE.CORP (master) > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] [get_and_save_tgt] > >> (0x0020): 979: [-1765328360][Preauthentication failed] > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] [map_krb5_error] > >> (0x0020): 1040: [-1765328360][Preauthentication failed] > >> (Thu Mar 19 16:20:42 2015) [[sssd[krb5_child[12775]]]] [k5c_send_data] > >> (0x0200): Received error code 1432158214 > >> > >> If I do the same with 'KRB5_TRACE=/dev/stderr kinit [email protected]': > >> [12299] 1426773524.361785: AS key obtained for encrypted timestamp: > >> aes256-cts/B997 > >> [12299] 1426773524.361850: Encrypted timestamp (for 1426773524.277583): > >> plain 301AA011180F32303135303331393133353834345AA1050203043C4F, encrypted > >> ED9CF995617740C4B14DB9CC84187E3505B664FE5C0AD16D19477E912F5400FB2C4665A090E3A37CD749535B3C80595809E14D15CB3527C0 > >> [12299] 1426773524.361876: Preauth module encrypted_timestamp (2) > >> (flags=1) returned: 0/Success > >> [12299] 1426773524.361880: Produced preauth for next request: 2 > >> [12299] 1426773524.361901: Sending request (238 bytes) to EXAMPLE.CORP > >> [12299] 1426773524.363002: Resolving hostname dct020.EXAMPLE.corp. > >> [12299] 1426773524.363841: Sending initial UDP request to dgram > >> 192.168.141.1:88 > >> [12299] 1426773524.368089: Received answer from dgram 192.168.141.1:88 > >> [12299] 1426773524.368482: Response was not from master KDC > >> [12299] 1426773524.368500: Received error from KDC: -1765328332/Response > >> too big for UDP, retry with TCP > >> [12299] 1426773524.368506: Request or response is too big for UDP; > >> retrying with TCP > >> [12299] 1426773524.368511: Sending request (238 bytes) to EXAMPLE.CORP > >> (tcp only) > >> [12299] 1426773524.368953: Resolving hostname dct030.EXAMPLE.corp. > >> [12299] 1426773524.370056: Initiating TCP connection to stream > >> 192.168.143.5:88 > >> [12299] 1426773524.375140: Sending TCP request to stream 192.168.143.5:88 > >> [12299] 1426773524.383801: Received answer from stream 192.168.143.5:88 > >> [12299] 1426773524.384237: Response was not from master KDC > >> [12299] 1426773524.384263: Processing preauth types: 19 > >> [12299] 1426773524.384271: Selected etype info: etype aes256-cts, salt > >> "EXAMPLE.CORPBPrins", params "" > >> [12299] 1426773524.384275: Produced preauth for next request: (empty) > >> [12299] 1426773524.384282: AS key determined by preauth: aes256-cts/B997 > >> [12299] 1426773524.384329: Decrypted AS reply; session key is: > >> rc4-hmac/39AB > >> [12299] 1426773524.384333: FAST negotiation: unavailable > >> [12299] 1426773524.384357: Initializing > >> KEYRING:persistent:0:krb_ccache_rhX3V4v with default princ > >> [email protected] > >> [12299] 1426773524.384400: Removing [email protected] -> > >> krbtgt/[email protected] from > >> KEYRING:persistent:0:krb_ccache_rhX3V4v > >> [12299] 1426773524.384407: Storing [email protected] -> > >> krbtgt/[email protected] in KEYRING:persistent:0:krb_ccache_rhX3V4v > >> [12299] 1426773524.384469: Storing config in > >> KEYRING:persistent:0:krb_ccache_rhX3V4v for > >> krbtgt/[email protected]: pa_type: 2 > >> [12299] 1426773524.384484: Removing [email protected] -> > >> krb5_ccache_conf_data/pa_type/krbtgt\/EXAMPLE.CORP\@EXAMPLE.CORP@X-CACHECONF: > >> from KEYRING:persistent:0:krb_ccache_rhX3V4v > >> [12299] 1426773524.384492: Storing [email protected] -> > >> krb5_ccache_conf_data/pa_type/krbtgt\/EXAMPLE.CORP\@EXAMPLE.CORP@X-CACHECONF: > >> in KEYRING:persistent:0:krb_ccache_rhX3V4v > >> > >> Any ideas? > > > >Can you log in to the IPA server as this user? If yes I would assume > >that the password gets garbled somewhere on the way from AIX through the > >IPA machinery to SSSD. Does the password contain some special characters > >which some LDAP processing calls might want the escape? > > > >bye, > >Sumit > > > Yes, I can login with the account on the IPA server without any problems. I > tried it with different password to rule out problems with special > characters. Finally I did a tcpdump on the IPA server. The AIX server sends > the word 'INCORRECT' to the IPA server instead of the password. So I guess I > have to do some more configuration checks on the AIX server.
Thank you for the feedback. Just a wild guess, since you were able to see anything in the tcpdump I guess an unencrypted connection is used. Maybe AIX prevents that the password is send via a clear text connection? bye, Sumit > >> > >> Thanks, > >> > >> Bobby > >> > >> -- > >> Manage your subscription for the Freeipa-users mailing list: > >> https://www.redhat.com/mailman/listinfo/freeipa-users > >> Go to http://freeipa.org for more info on the project > > > >-- > >Manage your subscription for the Freeipa-users mailing list: > >https://www.redhat.com/mailman/listinfo/freeipa-users > >Go to http://freeipa.org for more info on the project -- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go to http://freeipa.org for more info on the project
