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Questions tagged [ports]

Use this tag for Ethernet ports. E.g. IP:port.

1 vote
1 answer
326 views

How are (NetBIOS?) names being resolved on my network?

Firstly, i have little understanding of Windows Network Discovery, and how NetBIOS operates. I don't like it, and i try to ignore it. I have a server on my LAN, which (among other things) is acting as ...
M_D's user avatar
  • 469
-1 votes
1 answer
29 views

Ethernet connectivity lost on one port by working on others

I currently connect to a PLC via a fixed remote IP, this is then routed to a local IP on that network and has specific port allocated for access. I recently could not access this device although it ...
Paul Augood's user avatar
1 vote
2 answers
5k views

Windows 10 - Close listening ports

I'm doing a securisation of a PC with windows 10. With the command: "netstat -aon" I get the list of all the active connections. For some requirements I have to close the open port 80 and ...
marco94's user avatar
  • 13
1 vote
1 answer
1k views

Netstat shows open ports. What services are listening?

Netstat (Windows 10) is showing certain services as "listening", but what service is listening on that port? Any insights much appreciated.
Antonio23249's user avatar
  • 1,031
0 votes
1 answer
68 views

Defining Inbound and Oubound Policies in Windows Firewall,AV Firewall

In Windows Firewall we define Inbound & Outbound Policies for Web, Network, etc. access as we have separate settings for the same...The same if taken in an AV Firewall for example in Quick Heal ...
CrazyFirewall's user avatar
0 votes
1 answer
1k views

Can't connect to sftp from second computer on the same network

i got a new computer and trying to connect to the same sftp that i've used for years, i used an ftp client and i got a new one, but i get refusal to connect. I tried connecting with terminal and also ...
julianlede's user avatar
0 votes
1 answer
122 views

lsof -i and nmap output different

To test my PostgreSQL, I had to find its port number. I ran two different commands to see what it is: nmap localhost lsof -i | grep postgres I was confused when the two commands returned different ...
Shawn M.'s user avatar
0 votes
1 answer
4k views

How can I find out which folder http://localhost:3000 points to?

When I open a windows 10 command prompt or powershell and navigate to a folder with a ReactJS app, then run npm start this opens up http://localhost:3000 in my default browser. What should happen is ...
Marc's user avatar
  • 229
-1 votes
1 answer
3k views

Close Ports - Which ones and how?

I am wanting to close ports, to stop myself from been vulnerable to attacks/exploits What would be the best way to locate open ports on my computer and closing them to prevent such activities? Thanks
Worrieduser's user avatar
1 vote
0 answers
665 views

Firewalld open all ports except one

With firewalld, I am trying to allow all ports except one for everyone, as that port must be enabled for a specific host, and I have tried the following: firewall-cmd --permanent --zone=public --add-...
jonyluke's user avatar
0 votes
1 answer
819 views

SMB2 port range? Port 64663?

I'm copying files via the program Bvckup to a windows share. From a wireshark capture, I see that the operation uses TCP port 445 and SMB2 port 64663. I want to make a firewall rule, but I am ...
MojoDK's user avatar
  • 263
0 votes
1 answer
1k views

How to add a Windows Firewall ports to Printer using a Config File

I need to create a config file for Windows Firewall ports to printers. But I didn't get any ideas from the internet. If anyone knows can anyone suggest me.
Hariharan A's user avatar
1 vote
1 answer
351 views

I see rlm-admin and tor-socks port opened on my machine should I close them?

I ran the following command to see what ports are opened on my machine i.e Ubuntu 21.10 x86_64 nmap localhost and got the following result Starting Nmap 7.80 ( https://nmap.org ) at 2022-01-15 16:25 ...
Khushal's user avatar
  • 11
0 votes
1 answer
7k views

https://localhost:443 becomes https://localhost

I launch a web application by sudo PORT=443 HTTPS=true ./node_modules/.bin/react-scripts start. Then, I run https://localhost:443/#/start in a browser. It does open the start page, but the url becomes ...
SoftTimur's user avatar
  • 1,287
0 votes
1 answer
915 views

Why should registered port numbers not be used as public ports? [duplicate]

Registered Ports (1024 - 49, 151) are port numbers that gets registered with IANA for public use. Assume I have a popular application like discord, running on some port using a different protocol ...
Allan's user avatar
  • 23

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