On Tue, 24 Feb 1998, matthew tebbens wrote: > Is there anything out there to stop people from port scanning my system ? > I had someone last night scan my system from port 1 to 50,000 ! > > I heard that there is a portscand out there somewhere, if so where ?
You can't stop them beforehand. You can prevent access subsequently with ipfwadm and a kernel with firewalling compiled into it (prevent access from just that host, or that subnet). If you're very paranoid you could set up your firewall to deny all services by default and only let in connections on services which you feel are essential. If cracking is actively occurring, contact their provider to have them thrown off and/or prosecuted, and probably switch to ssh exclusively for remote login and switch off telnet, ftp, imap, rlogin, rexec, etc. etc. Probably, the worst that they're doing is growing your logfiles because you've got iplogger installed. Thomas. -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .