## AuthDigestNonceLifetime

Syntax: AuthDigestNonceLifetime <time>
Default: `AuthDigestNonceLifetime 300`
Context: directory, .htaccess
Override: AuthConfig
Status: Base
Module: mod_auth_digest
Compatibility: Available in Apache 1.3.8 and later

The AuthDigestNonceLifetime directive controls how long the server nonce is valid. When the client contacts the server using an expired nonce the server will send back a 401 with `stale=true`. If <time> is greater than 0 then it specifies the number of seconds the nonce is valid; this should probably never be set to less than 10 seconds. If <time> is less than 0 then the nonce never expires.