krb5 ticket cache

[Klaas Hagemann]

Hi,

after doing kinit the kerberos client creates a krb5 ticket cache file 
like /tmp/krb5cc_506.

Another user having root privileges on this client can optain these 
ticket cache file and have the network wide rights of the owner of this 
ticket.

Is there any chance that the ticket is stored in memory rather than on 
the local disk? can i configure it in any way?

Thanks,
Klaas