Nessus Scan Report - Columbia University

Port smtp (25/tcp) [-/+]SMTP Server DetectionSynopsis:An SMTP server is listening on the remote port.Description:The remote host is running a mail (SMTP) server on this port. SinceSMTP servers are the targets of spammers, it is recommended youdisable it if you do not use it.Risk factor:NoneSolution:Disable this service if you do not use it, or filter incoming traffic to thisport.Plugin output:Remote SMTP server banner : 220 ctsa.cpmc.columbia.edu ESMTPSendmail 8.13.8+Sun/8.13.8; Wed, 6 Oct 2010 21:50:20 -0400 (EDT)500 5.5.1 Command unrecognized: "GET / HTTP/1.0" 500 5.5.1Command unrecognized: ""Plugin ID:10263Service DetectionAn SMTP server is running on this port.Plugin ID:22964Port remoteware-cl? (3000/tcp) [-/+]Port unknown (30000/tcp) [-/+]Port telnet (3100/tcp) [-/+]Telnet Server DetectionSynopsis:A Telnet server is listening on the remote port.Description:The remote host is running a Telnet server, a remote terminal server.Risk factor:NoneSolution:Disable this service if you do not use it.