You can telnet to a port telnet 172.16.0.1 677
-----Original Message----- From: Birl [mailto:[EMAIL PROTECTED] Sent: Saturday, August 09, 2003 11:31 AM To: [EMAIL PROTECTED] Subject: Re: verifying an open or closed port on an ip address As it was written on Aug 7, thus [EMAIL PROTECTED] spake unto security-basics...: Ian: Date: Thu, 7 Aug 2003 13:44:58 -0400 Ian: From: <[EMAIL PROTECTED]> Ian: To: [EMAIL PROTECTED] Ian: Subject: verifying an open or closed port on an ip address Ian: Ian: Hello, Ian: Ian: I am looking for a windows compatible utility or method, preferably Ian: command line, where I can verify whether a port on an ip address is Ian: reachable or not. I want to be able to do individual ports and not Ian: port scans. Say for instance I wish to verify that port 677 is Ian: closed to traffic on ip address Ex. 172.16.0.1, I'm looking for a Ian: utility that would do something like: Ian: Ian: Check 172.16.0.1 port 677 Ian: Ian: and tell me whether that port was reachable. Ian: Ian: So if I have two networks and I use this command from one I can Ian: determine whether a port is reachable on another. To determine Ian: whether a security measure is failing or not. Ian: Ian: There may be a simple way to do this... Ian: Ian: Thanks Ian: Ian I dont understand why you wouldnt portscan. You could tell nmap (or in your OS, WinNmap) to just probe a single IP's UDP (or TCP) port. nmap is designed to be flexable. It's what I use when testing for a specific port. Thanks Scott Birl http://concept.temple.edu/sysadmin/ Senior Systems Administrator Computer Services Temple University ====*====*====*====*====*====*====*====+====*====*====*====*====*====*== ==*====* ------------------------------------------------------------------------ --- ------------------------------------------------------------------------ ---- --------------------------------------------------------------------------- ----------------------------------------------------------------------------
