### Removing Principals from Keytabs

To remove a principal from an existing keytab, use the kadmin `ktremove` command. The syntax is:

         ktremove [-k[eytab] keytab] [-q] principal [kvno | all | old]

The `ktremove` command takes the following switches:

-k[eytab] keytab
  use keytab as the keytab file. Otherwise, `ktremove` will use the default keytab file (`/etc/krb5.keytab`).
-q
  run in quiet mode. This causes `ktremove` to display less verbose information.
principal
  the principal to remove from the keytab. (Required.)
kvno
  remove all entries for the specified principal whose Key Version Numbers match kvno.
all
  remove all entries for the specified principal
old
  remove all entries for the specified principal except those with the highest kvno.

For example:

         kadmin: ktremove -k /usr/local/var/krb5kdc/kadmind.keytab kadmin/admin
         kadmin: Entry for principal kadmin/admin with kvno 3 removed
              from keytab WRFILE:/usr/local/var/krb5kdc/kadmind.keytab.
         kadmin: