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validating keytab files: Cannot find KDC for requested realm whilegetting initial credentials

I am able to validate (test) keytab files for service1/host1.us.foo.com@FOO.COM and service2/host2.us.foo.com@FOO.COM using the command "kinit -5 -k -t keytab-file service-principal" from host1.us.foo.com, but when I try to validate a keytab file for service3/host3.au.foo.com@FOO.COM from host1.us.foo.com I get the following error:

kinit(v5): Cannot find KDC for requested realm while getting initial credentials

krb5.conf says:

[realms]
    FOO.COM = {
        kdc = ...foo.com:88
        ...
   }

[domain_realm]
    .foo.com = FOO.COM

Is this behavior expected? Do I need to be "on" a host in .au.foo.com to validate a keytab for service3/host3.au.foo.com@FOO.COM? Thanks.

Frank


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10/26/2004 9:16:20 PM
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Check your krb5kdc.log file for any hint!

Hooshang


On Tue, 26 Oct 2004 16:39:22 -0400, Frank Balluffi
<frank.balluffi@db.com> wrote:
> I am able to validate (test) keytab files for service1/host1.us.foo.com@FOO.COM and service2/host2.us.foo.com@FOO.COM using the command "kinit -5 -k -t keytab-file service-principal" from host1.us.foo.com, but when I try to validate a keytab file for service3/host3.au.foo.com@FOO.COM from host1.us.foo.com I get the following error:
> 
> kinit(v5): Cannot find KDC for requested realm while getting initial credentials
> 
> krb5.conf says:
> 
> [realms]
>     FOO.COM = {
>         kdc = ...foo.com:88
>         ...
>    }
> 
> [domain_realm]
>     .foo.com = FOO.COM
> 
> Is this behavior expected? Do I need to be "on" a host in .au.foo.com to validate a keytab for service3/host3.au.foo.com@FOO.COM? Thanks.
> 
> Frank
> 
> --
> 
> This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
> 
> ________________________________________________
> Kerberos mailing list           Kerberos@mit.edu
> https://mailman.mit.edu/mailman/listinfo/kerberos
>
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0
10/27/2004 1:12:28 AM
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Hi All, I have a query related to getting TGT using the keytab file. I am using windows 2003 KDC and a linux client. I have explained the scenario below in detail Step1: First, I create an account say "test" in the domain controller. Using the ktpass tool, I create the keytab file. Using ADSI edit, I make sure that the keyversion number is 3. I use this keytab file on Linux to get the TGT. Linux successfully gets the TGT. Step2: Now, I run the ktpass tool on 2003 server again for the same user. I won't change anything( not even the password). Using ADSI Edit, I see that the keyversion number is incremented to 4. But I won't use the newly created keytab file on Linux. Even by using the old keytab file created as in Step1, I am able to get the TGT. My question is, while getting the TGT, is this keyversion number not chekced at all? If the password matches, does KDC issues the TGT ? is it that only when the actual service like telnet is used, Keyversion is checked ? Regards, Sandy On Jun 15, 1:43 pm, sandy <sandypossi...@gmail.com> wrote: > Hi All, > > I have a query related to getting TGT using the keytab file. I am > using windows 2003 KDC and a linux client. I have explained the > scenario below in detail > > Step1: First, I create an account say "test" in the domain controller. > Using the ktpass tool, I create the keytab file. Using ADSI edit, I > make sure that the keyversion number is 3. I use this keyt...

Help: Cannot contact any KDC for requested realm
Hi, I use mod_auth_kerb in Apache for SSO. Here's auth_kerb.conf contents. LoadModule auth_kerb_module modules/mod_auth_kerb.so <Location /opendcim> SSLRequireSSL AuthType Kerberos AuthName "Kerberos Login" KrbMethodNegotiate On KrbMethodK5Passwd On KrbAuthRealms FOOBAR.COM KrbVerifyKDC On Krb5KeyTab /etc/httpd/HTTP-ibm-x3250m3-2.foobar.com.keytab require valid-user </Location> And here's /etc/krb5.conf: [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] default_realm = FOOBAR.COM dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 24h forwardable = yes [realms] FOOBAR.COM = { kdc = kerberos.foobar.com:88 admin_server = kerberos.foobar.com:749 } [domain_realm] foobar.com = FOOBAR.COM .foobar.com = FOOBAR.COM [appdefaults] pam = { debug = false ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false } foobar.com is a pseudo domain name in my testing env. When the user access the foobar.com/opendcim it will prompt username and passoword window. However, after user's input it will prompt that window again. I checked the log in ssl_error_log I found following details. [Mon Jun 24 12:29:24 2013] [error] [client 192.168.122.6] krb5_get_init_creds_password() failed: Cannot contact any KDC for requested realm...

Web resources about - validating keytab files: Cannot find KDC for requested realm whilegetting initial credentials - comp.protocols.kerberos

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