On 2/16/20 2:53 AM, Patrick Dupre wrote:
Two ways, From euripide (the "remote", ie: the server)
1. nmap
nmap -v -n -Pn -p5900-5906 euripide
Starting Nmap 7.70 ( https://nmap.org ) at 2020-02-16 11:46 CET
Initiating Connect Scan at 11:46
Scanning euripide (193.52.235.60) [7 ports]
Discovered open port 5901/tcp on 193.52.235.60
Completed Connect Scan at 11:46, 0.00s elapsed (7 total ports)
Nmap scan report for euripide (193.52.235.60)
Host is up (0.00037s latency).
Other addresses for euripide (not scanned): fe80::de89:7b2c:9cf1:d1c9
PORT STATE SERVICE
5900/tcp closed vnc
5901/tcp open vnc-1
5902/tcp closed vnc-2
5903/tcp closed vnc-3
5904/tcp closed unknown
5905/tcp closed unknown
5906/tcp closed unknown
If you run this on the server, it's the same system. Even if you
specify an IP address, the connection is still going to go over
localhost. So this is the same result you had before.
lsof -p $(pidof Xvnc) | grep LISTEN
Xvnc 5308 pdupre 6u IPv4 145831 0t0 TCP *:5901 (LISTEN)
Xvnc 5308 pdupre 7u IPv6 145832 0t0 TCP *:5901 (LISTEN)
That is useful. That tells you that it's listening on all interfaces,
so you still only need to adjust the firewall to let connections through
to that port.
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