Topic Review (Newest First)
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| 01-24-2009 09:14 AM | |
| Ondrej Sevecek |
Re: kerberos logon to IP address I am sory to be this impolite, but would you be able to help me with this issue? The question can be shortened to something simple like this: "Vista will never use kerberos for servers (at least http, smb/cifs) whos name is specified by an IP address, is that right? "And if it would use Kerberos, how one could make Vista use it apart creating the SPN and making it member of Local Intranet zone?" many thanks and appologies for the rudeness. ondra. "Mervyn Zhang [MSFT]" <v-mervzh@online.microsoft.com> wrote in message news:LBahzfreJHA.8120@TK2MSFTNGHUB02.phx.gbl... > Hi, |
| 01-21-2009 09:06 AM | |
| Ondrej Sevecek |
Re: kerberos logon to IP address Vista Ulitmate SP1 English, clear installation with SP1, AD 2008 level, 2003 forest level, single domain correctly WORKING test: a) have server SRV1.domain.local, IP address 10.10.0.11 b) create DNS A record intranet.domain.local, IP address 10.10.0.11 c) add site "intranet.domain.local" to the Local Intranet sites (IEESC turned off) d) purge Kerberos ticket cache e) restart IE e) try IE to http://intranet.domain.local (exactly this, not using the short form) f) only TGT received, but both TGT and TGS were requested as was seen in wireshark - this is stil correct because no SPN was still created. So we are going to create SPN and enable kerberos for the alias. g) create SPN http/intranet.domain.local h) purge Kerberos ticket cache i) restart IE j) try IE to http://intranet.domain.local (exactly this, not using the short form) k) both TGT and TGS were received successfully the same procedure works the same way even for SMB/CIFS access (certainly, the DisableStrictNameChecking must have been set up to 1) but when I try to access http://10.10.0.11 or \\10.10.0.11 (Local Intranet site addess, the caches purged out, SPN created etc.) the Vista client not even asks for TGT - once again as observed by using Wireshark the client doesn't try Kerberos at all, it uses NTLM as the first method without trying Kerberos first With Windows XP client on the other hand, both types used - intranet.domain.local and also 10.10.0.11 work the same and if the SPN is in place, in both cases XP asks and receives the tickets. ondra. "Mervyn Zhang [MSFT]" <v-mervzh@online.microsoft.com> wrote in message news:LBahzfreJHA.8120@TK2MSFTNGHUB02.phx.gbl... > Hi, |
| 01-21-2009 09:06 AM | |
| Ondrej Sevecek |
Re: kerberos logon to IP address Vista Ulitmate SP1 English, clear installation with SP1, AD 2008 level, 2003 forest level, single domain correctly WORKING test: a) have server SRV1.domain.local, IP address 10.10.0.11 b) create DNS A record intranet.domain.local, IP address 10.10.0.11 c) add site "intranet.domain.local" to the Local Intranet sites (IEESC turned off) d) purge Kerberos ticket cache e) restart IE e) try IE to http://intranet.domain.local (exactly this, not using the short form) f) only TGT received, but both TGT and TGS were requested as was seen in wireshark - this is stil correct because no SPN was still created. So we are going to create SPN and enable kerberos for the alias. g) create SPN http/intranet.domain.local h) purge Kerberos ticket cache i) restart IE j) try IE to http://intranet.domain.local (exactly this, not using the short form) k) both TGT and TGS were received successfully the same procedure works the same way even for SMB/CIFS access (certainly, the DisableStrictNameChecking must have been set up to 1) but when I try to access http://10.10.0.11 or \\10.10.0.11 (Local Intranet site addess, the caches purged out, SPN created etc.) the Vista client not even asks for TGT - once again as observed by using Wireshark the client doesn't try Kerberos at all, it uses NTLM as the first method without trying Kerberos first With Windows XP client on the other hand, both types used - intranet.domain.local and also 10.10.0.11 work the same and if the SPN is in place, in both cases XP asks and receives the tickets. ondra. "Mervyn Zhang [MSFT]" <v-mervzh@online.microsoft.com> wrote in message news:LBahzfreJHA.8120@TK2MSFTNGHUB02.phx.gbl... > Hi, |
| 01-20-2009 03:31 AM | |
| Mervyn Zhang [MSFT] |
RE: kerberos logon to IP address Hi, Thank you for posting. According to your description, I understand that: Vista would not use Kerberos against an IP address even if you have created SPN for the IP address. If I have misunderstood the problem, please don't hesitate to let me know. I would like to explain that Service principal names (SPNs) are unique identifiers for services running on servers. Every service that uses Kerberos authentication needs to have an SPN set for it so that clients can identify the service on the network. Could you let us know how do you create SPN for the IP address? Also, what do you mean by "Vista is NOT willing to use Kerberos against an IP address"? There are some Kerberos Enhancements in Vista but these enhancements should not affect the work of Kerberos. For more information about those changes, please refer to the article below: Kerberos Enhancements http://technet.microsoft.com/en-us/l.../cc749438.aspx Could you let us know where did you find that Windows XP try to generate a ticket for IP address? Did you use the tool "Klist"? If there is any log, report, it’s very helpful. A screenshot is better for troubleshooting. You can send log file or screenshot to tfwst@microsoft.com. Or please use Windows Live SkyDrive (http://www.skydrive.live.com/) to upload the file and then give me the download address. Sincerely, Mervyn Zhang Microsoft Online Community Support ================================================== This posting is provided "AS IS" with no warranties, and confers no rights. |
| 01-20-2009 01:32 AM | |
| Peter Foldes |
Re: kerberos logon to IP address Which version of Vista. I think only the Enterprise version will accept the Kerberos ticket. This is a no brainer for W2K3 Server SP2 and R2 -- Peter Please Reply to Newsgroup for the benefit of others Requests for assistance by email can not and will not be acknowledged. "Ondrej Sevecek" <ondass@community.nospam> wrote in message news:%23ZspnCoeJHA.3864@TK2MSFTNGP05.phx.gbl... > hello, |
| 01-19-2009 08:55 PM | |
| Ondrej Sevecek |
kerberos logon to IP address hello, as I investigated the Kerberos implementation in Vista, Vista is NOT willing to use Kerberos against an IP address. I was not able to make Vista uses Kerberos against IP address not even by creating SPN for the IP address. Although windows XP actually try to generate a ticket even for IP addresses, and if an appropriate SPN is available, they receive the ticket, Vista doesn't seam to do it under any circumstances, right ? Vista just doesn't ask for a ticket for an IP address at all. Can this be changed somehow? many thanks. ondra. |
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