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Can someone tell me how to control the telnet and ftp access to a Red Hat Machine?
I want to know how to ensure that the machine accepts telnet and ftp from only a particular range of IP addresses.
I got the solution. Editing /etc/hosts.allow and /etc/hosts.deny works only with tcpd working along with xinetd.
For simply controlling access to telnet and ftp, I edited the files /etc/xinetd.d/telnet and /etc/xinetd.d/gssftp and included aline something like this:
only_from = 18.104.22.168
This allowed telnet/ftp only from the network specified and denied access from other networks.
ssh comes as std on RH9, so just use
service sshd restart
(it may already be running).
and don't forget to set it on the Services menu as well so it restarts on next boot.
Remember to set