My scanned ports are filtered

HTB Content Machines
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So I recently joinen HTB and started w/ the first starting point machine. I made a nmap scan (sudo nmap -x -x -x; tried it with various stuff like -sS or -sC) but all I get is the response "all 1000 ports are filtered (if done with -p- there are obv. more^^). What do I have to do to make it show the open / closed ports?

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@SeesSoos21 said:

So I recently joinen HTB and started w/ the first starting point machine. I made a nmap scan (sudo nmap -x -x -x; tried it with various stuff like -sS or -sC) but all I get is the response "all 1000 ports are filtered (if done with -p- there are obv. more^^). What do I have to do to make it show the open / closed ports?

Are you connected to the starting point VPN?

Have you tried a traceroute to the IP address you are trying to scan?