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Nmap scan report for ntp1.kansas.net (64.6.144.6) Host is up (0.049s latency). rDNS record for 64.6.144.6: triangle.kansas.net Not shown: 983 filtered tcp ports (no-response), 9 filtered tcp ports (port-unreach) PORT STATE SERVICE VERSION 25/tcp open smtp Sendmail (Not accepting mail) | smtp-commands: triangle.kansas.net Hello 208.76.253.234.rdns.ColocationAmerica.com [208.76.253.234] (may be forged), pleased to meet you, ENHANCEDSTATUSCODES, PIPELINING, 8BITMIME, SIZE, DSN, ETRN, DELIVERBY, HELP |_ 2.0.0 This is sendmail version 8.14.4 2.0.0 Topics: 2.0.0 HELO EHLO MAIL RCPT DATA 2.0.0 RSET NOOP QUIT HELP VRFY 2.0.0 EXPN VERB ETRN DSN AUTH 2.0.0 STARTTLS 2.0.0 For more info use "HELP <topic>". 2.0.0 To report bugs in the implementation send email to 2.0.0 sendmail-bugs@sendmail.org. 2.0.0 For local information send email to Postmaster at your site. 2.0.0 End of HELP info 53/tcp closed domain 80/tcp closed http 465/tcp open ssl/smtps? |_smtp-commands: SMTP EHLO ntp1.kansas.net: failed to receive data: connection closed 3784/tcp closed bfd-control 8000/tcp closed http-alt 8001/tcp closed vcom-tunnel 8002/tcp closed teradataordbms Aggressive OS guesses: Linux 2.6.32 - 3.10 (99%), Linux 2.6.32 - 3.5 (97%), Linux 2.6.32 - 3.13 (96%), Android 4.1 (Linux 3.0) (96%), Tizen (96%), Linux 2.6.32 (96%), Linux 3.2 - 4.9 (96%), Netgear ReadyNAS 2100 (RAIDiator 4.2.24) (96%), Linux 2.6.38 - 3.0 (95%), Linux 5.0 - 5.3 (95%) No exact OS matches for host (test conditions non-ideal). Network Distance: 11 hops TRACEROUTE (using port 53/tcp) HOP RTT ADDRESS 1 0.20 ms 208.76.251.177.rdns.ColocationAmerica.com (208.76.251.177) 2 0.59 ms gw.mcom-colocationamerica.com (208.64.231.81) 3 1.66 ms r2b4.n1.p1401.lax.multacom.net (64.69.46.11) 4 1.31 ms hurricane-electric.as6939.any2ix.coresite.com (206.72.210.122) 5 8.90 ms port-channel9.core1.phx2.he.net (184.104.194.98) 6 ... 7 8 46.48 ms wtc.e0-43.switch2.mci3.he.net (184.105.63.221) 9 48.82 ms 106.ksnet.wtcks.net (216.147.230.106) 10 48.08 ms 64.6.139.2 11 49.41 ms triangle.kansas.net (64.6.144.6) OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 37.56 seconds