How To Use nmap To Scan For Open Ports

Learn how to check a if specific port is open or scan all ports with the nmap command.

Check out my vlog channel @TonyFlorida

#nmap

[arafah]

I’m currently in school for cybersecurity, and this will help me for my future career.

[riderjishuroy]

thank's man u helped me alot! Keep on growing..and keep videos like this to the point!

[iamtheyikes]

nice tutorial easy to follow. keep the vids coming

[brookyboi]

hi tony i appreciate the work but what software do u use

[TrackMonkey]

I appreciate how well you explain things. Thanks for posting these videos.

[nikhilbejjarapu]

I’ve noticed some ports like 443, 25, etc are in filtered state. That means firewall is blocking these ports I guess. I have also disabled firewalls. Still they are in filtered state. I’m trying to open the local host port 8834 for using nessus.

[rafy-ivanmorales]

I'm a new student trying to learn, so I can become a programmer with python and I have a project on how to make a port scan.

So far I already make a port scan with Python3, and it scans fine, give a date and everything working good so far.

I see on your video tutorial, it is very good.

I would like to ask for your advice if you can and guide me on how I will add this 3
in a Python script, I have:

2. System should look for all the ports between the range of 1 to 1025
3. If the Ports is open, it should create a file and add an entry for port number
4. In case of any exception for instance “host is not available”, “host name could not be resolved” or
due to any other error, you need to write that exception into the same file.


Thank you and Merry Christmas.

[trollflix]

Hi Tony, do you recommend changing the default ports to prevent spamBOTs from accessing the server?

[takis]

Hi Tony, I'm from Mexico and I really like your videos.
But I wanted to know if you can make a video of the runcloud or gridpane platform and give your opinion.

[FactsSeeker]

If a device has a firewall with no ports open, how do they access the internet, create ssh connections, etc? If no ports are open, wouldn't that mean that the device can't access the WWW because, you know, no ports are open to receive any data.

[otitokinyaha]

Sorry 25/tcp is filtered so it’s not open the traffic is blocked, just to clarify your statement, When is open mean traffic are allowed to pass, When it’s filtered means the traffic are drop due to firewall rules or when the service is down

[linzhaolong]

i keep getting the scanned 1000 ports are in ignored state. Can anyone help?

[Abdul]

I typed : Sudo nmap -sV (my ip) then enter and it says all 1000 ports are closed can anyone help me plz

[EddyGameVlogBoy]

*Me and the boys using nmap to raid dedicated terraria servers*