Does Keytab have a lifetime?

Question

I have a keytab that is scheduled to run daily (only once) to update it. However, I wanted to find out if keytab itself has a lifetime. I assume this is not the case, as the cron job was set up to run daily, which, I think, will create a new ticket instead of updating?

Answer 1

Cited from mit kerberos: "Keytab (short for" key table ") stores long-term keys for one or more participants." Your keytab will be stored in the keytab file, which will allow you to automate the use of the principles of kerberos without any "human interaction". As you know, tickets are only valid in a few short quantities, usually from 12 to 24 hours, however keytab is valid as long as you consider it valid. By this, I mean that if any third entity takes possession of keytab, it loses all goals.