Ktutil
The ktutil program is a small utility program that allows administrators to manipulate keytab files. Ktutil is the recommended way to append keytabs to one another and delete entries from existing keytabs. The ktutil program requires no arguments, but will require enough privileges to read and write the appropriate keytabs. Typically, this means that you must run ktutil as root.
The ktutil utility starts with an empty keylist. Keys are added to the keylist as keytab files are read in, and keys can be deleted from the keylist. When the keylist is ready, it can be written out to a new keytab file, or appended to an existing one. A synopsis of the commands follows.
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