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1 | [[nmap]] |
2 | `nmap` - Port Scans | |
3 | ------------------- | |
4 | ||
5 | `nmap` is designed to allow system administrators to scan large | |
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6 | networks, to determine which hosts are up and what services they |
7 | offer. You can use nmap to test your firewall settings, for example, | |
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8 | to see if the required ports are open. |
9 | ||
10 | .Test Razor port (tcp port 2703): | |
11 | ---- | |
12 | # nmap -P0 -sS -p 2703 c301.cloudmark.com | |
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13 | Starting Nmap 7.70 ( https://nmap.org ) at 2020-04-14 12:20 CEST |
14 | Nmap scan report for c301.cloudmark.com (208.83.137.114) | |
15 | Host is up (0.13s latency). | |
abca4c1d | 16 | |
abca4c1d | 17 | PORT STATE SERVICE |
e5fa9b13 | 18 | 2703/tcp open sms-chat |
abca4c1d | 19 | |
e5fa9b13 | 20 | Nmap done: 1 IP address (1 host up) scanned in 6.83 seconds |
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21 | ---- |
22 | ||
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23 | For more information about `nmap` usage, see the |
24 | https://nmap.org/book/man.html[Nmap Reference Guide], also available as a manual | |
25 | page (`man nmap`). |