On Sat, 2004-07-24 at 19:30, John Dangler wrote: > I went to the ShieldsUP!!! site and ran the file sharing and common ports > tests. According to the results, I allowed ping to reply to their server > via ICMP echo, and I have port 21 (ftp) and 23 (telnet) open. How do I: > > (1) block/ignore ICMP echo requests > (2) Tell inquirers that ports 21 and 23 exist but are closed to connections John, Unless you need ftp and telnet, I suggest you shut them down: service vsftpd stop Telnet is part of the xinetd super-server. Edit /etc/xinetd.d/telnet and change the line: disable = no to disable = yes You can check open ports by doing: nmap localhost Regards Chris