3 QNS

["Chiu, PCM (Peter) " <P C M Chiu rl ac uk>]

Hi,

We have come across three problems on our RH 7.1 system
and wonder anyone has any idea on them:

a. Inbound emails are refused, but outbound sendmail works.  
    Tried chkconfig sendmail on and it does says on,
    /etc/init.d/xinetd restarted,
    hosts.allow and hosts.deny are both blanks,
    ntsysv sendmail start up enabled.

    but from a remote host, telnet host 25 still got rejected, 
    although telnet host works, and from the local host, 
    telnet 0 25 is also accepted.

b. setup reveals firewall is set to high.
    Did try to set it to null, but each time setup is invoked,
    it is reverted to high?
    
c. how to enable IDE bus to work in 66 or 100MHz PIO mode?
    Currently it works in 33MHz mode.

Regards,
Peter Chiu
Tel:  +44-(0)1235-446699
Fax: +44-(0)1235-445848
Email: P Chiu rl ac uk