<header>Security level</header>

Kerberos has three different security levels:
<ul><li>Authentication only: The header of each request and response is signed.</li>
<li>Integrity: The header and body of each request and response are signed.</li>
<li>Privacy: The header of each request is signed, and the body is encrypted.</li></ul><br>
<br><i>mount option: sec</i>
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