[Proftpd-user] Limits on HELP Command

Hello,

I'm am trying to apply limits<http://www.proftpd.org/docs/howto/Limit.html> on the HELP<http://www.proftpd.org/docs/howto/FTP.html> command. I am trying to disable it completely. Output form the HELP command is "leaked" when making unauthenticated TELNET connections to my FTP server.

Example: Here is the output when telnetting to my ProFTP server and issuing the HELP command:

HELP
214-The following commands are recognized (* =>'s unimplemented):
CWD     XCWD    CDUP    XCUP    SMNT*   QUIT    PORT    PASV
EPRT    EPSV    ALLO*   RNFR    RNTO    DELE    MDTM    RMD
XRMD    MKD     XMKD    PWD     XPWD    SIZE    SYST    HELP
NOOP    FEAT    OPTS    HOST    CLNT    AUTH*   CCC*    CONF*
ENC*    MIC*    PBSZ*   PROT*   TYPE    STRU    MODE    RETR
STOR    STOU    APPE    REST    ABOR    USER    PASS    ACCT*
REIN*   LIST    NLST    STAT    SITE    MLSD    MLST
214 Direct comments to [email protected]

I'm trying to disable access to this command using limits. I'm expecting this to work but it does not:

<Limit HELP>
  DenyAll
</Limit>

I've also tried the following but it doesn't work:

<Limit SITE_HELP>
  DenyAll
</Limit>

Even limiting ALL doesn't work, though it does work to stop other commands from working.

<Limit ALL>
  DenyAll
</Limit>

What is the correct way to disallow unauthenticated client access and the use of the HELP command?

--
Jacob

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