On 2020-02-16 04:19, Patrick Dupre wrote: > Hello, > > On a server > nmap -v -n -Pn -p5900-5910 localhost > provides: > > Starting Nmap 7.70 ( https://nmap.org ) at 2020-02-15 15:07 EST > Initiating SYN Stealth Scan at 15:07 > Scanning localhost (127.0.0.1) [11 ports] > Completed SYN Stealth Scan at 15:07, 0.42s elapsed (11 total ports) > Nmap scan report for localhost (127.0.0.1) > Host is up (0.000015s latency). > Other addresses for localhost (not scanned): ::1 > > PORT STATE SERVICE > 5900/tcp closed vnc > 5901/tcp closed vnc-1 > 5902/tcp closed vnc-2 > 5903/tcp closed vnc-3 > 5904/tcp closed unknown > 5905/tcp closed unknown > 5906/tcp closed unknown > 5907/tcp closed unknown > 5908/tcp closed unknown > 5909/tcp closed unknown > 5910/tcp closed cm > Oh, BTW, that nmap command is operating on the localhost and won't be a good indication of a port's status to the outside world. Example, using the host f31k. If I am connected to f31k and issue the command I get PORT STATE SERVICE 5900/tcp closed vnc 5901/tcp closed vnc-1 5902/tcp closed vnc-2 5903/tcp closed vnc-3 5904/tcp closed unknown 5905/tcp closed unknown 5906/tcp closed unknown 5907/tcp closed unknown 5908/tcp closed unknown 5909/tcp closed unknown 5910/tcp closed cm Which ONLY means no service is running and listening on those ports. Running from a remote host I get PORT STATE SERVICE 5900/tcp filtered vnc 5901/tcp filtered vnc-1 5902/tcp filtered vnc-2 5903/tcp filtered vnc-3 5904/tcp filtered unknown 5905/tcp filtered unknown 5906/tcp filtered unknown 5907/tcp filtered unknown 5908/tcp filtered unknown 5909/tcp filtered unknown 5910/tcp filtered cm And "filtered" means there is a firewall rule in effect. If you were to open the port, the remote system will report "closed" if there is no service running on the port. -- The key to getting good answers is to ask good questions. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
