XPost: alt.os.linux.mint   
   From: killadebug@mouse-potato.com   
      
   On Sun, 04 Sep 2022 03:55:12 +0200, Mrde wrote:   
      
   > VPS Ubuntu server, MATE desktop   
   >   
   > sudo ufw status numbered sudo ufw default deny incoming sudo ufw default   
   > allow outgoing sudo ufw allow 22 sudo ufw enable sudo ufw status   
   > numbered sudo reboot   
   >   
   > netstat -tulpn tcp        0      0 0.0.0.0:22   
   >   
   > When I run from my home sudo nmap -p 22 -sUV SERVER_IP 22/udp   
   > open|filtered ssh   
   >   
   > But, when I run sudo nmap -p 22,80,12345,55555 -sUV SERVER_IP 22/udp   
   > open|filtered ssh 80/udp    open|filtered http 12345/udp   
   > open|filtered unknown 55555/udp    open|filtered unknown   
   >   
   > I don't have these ports open.   
   >   
   > Why every udp port is open?   
      
   Maybe a setup issue on your server. Here are the results on my home   
   machine.   
      
   VPN   
      
   PORT      STATE  SERVICE VERSION   
   22/udp    closed ssh   
   80/udp    closed http   
   12345/udp closed italk   
   55555/udp closed unknown   
      
   Service detection performed. Please report any incorrect results at   
   https://nmap.org/submit/ .   
   Nmap done: 1 IP address (1 host up) scanned in 0.32 seconds   
      
   local ip 192.168.1.101   
      
      
   PORT      STATE  SERVICE VERSION   
   22/udp    closed ssh   
   80/udp    closed http   
   12345/udp closed italk   
   55555/udp closed unknown   
      
   Service detection performed. Please report any incorrect results at   
   https://nmap.org/submit/ .   
   Nmap done: 1 IP address (1 host up) scanned in 0.31 seconds   
      
      
      
   --   
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