Difference between revisions of "Generating Keytabs"

m (/ correct grammar and who the principal should be)
m (/* fix my error)
Line 10: Line 10:
 
Once the SPN is added, you can then generate a keytab for the user with samba-tool, by running the following:
 
Once the SPN is added, you can then generate a keytab for the user with samba-tool, by running the following:
  
  samba-tool domain exportkeytab  <name>.keytab  --principal=<sAMAccount name>
+
  samba-tool domain exportkeytab  <name>.keytab  --principal=[<sAMAccount name> | <SPN>]
  
This should then produce a keytab for the principal <sAMAccount name> and this can then be copied to your target machine or service.
+
This should then produce a keytab called <name>.keytab containing the users upn or the spn, depending on which is given with '--principal' and this can then be copied to your target machine or service.
  
'''Note:''' replace <sAMAccount name> with a valid user name and <name> with whatever you what the keytab to be called. This can also include a path to where you want the keytab to be created.
+
'''Note:''' replace <sAMAccount name> with a valid user name, <SPN> with the spn you added earlier and <name> with whatever you what the keytab to be called, this can also include a path to where you want the keytab to be created.
 +
You should only use <sAMAccount name> or <SPN>, you should not use both.

Revision as of 17:41, 14 September 2016

Active directory requires Kerberos service principal names to be mapped to a user account before a keytab can be generated.

You can add SPN names to a user with samba-tool, this is provided with your samba 4 installation.

samba-tool spn add host/fdqn@KerberosRealm <sAMAccount name> 

This should return without error.


Once the SPN is added, you can then generate a keytab for the user with samba-tool, by running the following:

samba-tool domain exportkeytab  <name>.keytab  --principal=[<sAMAccount name> | <SPN>]

This should then produce a keytab called <name>.keytab containing the users upn or the spn, depending on which is given with '--principal' and this can then be copied to your target machine or service.

Note: replace <sAMAccount name> with a valid user name, <SPN> with the spn you added earlier and <name> with whatever you what the keytab to be called, this can also include a path to where you want the keytab to be created. You should only use <sAMAccount name> or <SPN>, you should not use both.