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Please see the FreeBSD FAQ for more detailed information on security
profiles. The following table is intended to give you a rough idea just
which services are enabled (or disabled) by each of the canned security
profiles:

               Extreme        High           Medium         Low
               -------        ----           --------       ---
inetd          NO             NO             YES            YES
sendmail       NO             YES            YES            YES
sshd           NO             YES            YES            YES
portmap        NO             NO             *              YES
nfs_server     NO             NO             **             ***
securelevel    YES (2)        YES (1)        NO             NO


NOTES:
*   Portmap is enabled if the machine has been configured as either an NFS
    client or an NFS server earlier in the installation process.
**  If the machine has been configured as an NFS server, NFS will only run
    on a reserved port.
*** No changes are made to the NFS configuration.
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