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Questions tagged [ports]

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

0 votes
1 answer
2k views

How do I Block a Port on all IPS, except 1?

how do i block a port on all IP's except 1? say I have IP's: 192.168.1 192.168.2 ex: how would i only allow port 21 on 192.168.1 through IP tables or similar?
Alex EPIC's user avatar
0 votes
3 answers
5k views

Is it normal for screws on PSU to have electricity?

I was getting electric shock from my USB ports, so I decided to check. All the ports on my motherboard also have electricity (I'm using a tester to test it). There fore I removed my motherboard ...
Sandeepr's user avatar
2 votes
0 answers
1k views

Windows: how to bind to <1024 port as standard user?

I was wondering if there was a way on Windows to bind to a <1024 port as a standard user? I am aware that this requires Admin privilege but can I approve the request with Admin but run the actual ...
nd510's user avatar
  • 173
2 votes
1 answer
217 views

How to log all ports once opened by a process/app in Linux for short time?

I have an app that makes some kind of upd ping to the network and for some short time listens for some port in order to receive some feedback during some timeout. It is short enough to observe if with ...
Ilya Yevlampiev's user avatar
0 votes
0 answers
51 views

Connect to Windows Server 2012 on specific ports

Try to connect to your computer on ports (135÷139,445), for example by connecting to a shared folder (C$). You can use "net use" command. Hey, I'm making security exercises (Firewall stuff), but I'...
Dan Zawadzki's user avatar
2 votes
1 answer
4k views

How long would it take to perform different port scans on all 65536 ports?

I am currently using Nmap to map local networks in part of my program, and I was wondering how long it would take to perform different port scans on all ports? What is the timeout and average packet ...
rshah's user avatar
  • 125
0 votes
1 answer
1k views

Second router in home network - how to setup properly

today I got a router to split my home network in two partitions to isolate some devices. In particular I have Raspberry Pi which I would like to access from the internet and keep all my other devices (...
bash.d's user avatar
  • 123
0 votes
0 answers
377 views

Not able to connect to VM from web browser with SAS University Edition

I have installed SAS University Edition through Oracle Virtual Box as intended. The user is meant to connect to SAS from outside the VM via a web browser. Unfortunately, I am unable to make a ...
Leigh_Royus's user avatar
0 votes
2 answers
652 views

Doing forensics using PowerShell in Windows, linking ports to applications

In order to correctly do forensics; in finding vulnerabilities, that the security team has revealed in their security scans. The two commands I use mostly do this job is: c:\ netstat -abno | find "...
gsb005's user avatar
  • 31
7 votes
3 answers
53k views

How to find out which ports are used by a program?

I try to figure out which ports a specific program uses if they send data to the internet. Is there a tool which is able to find this out? Or do I have to do package inspection by using wireshark? ...
Black's user avatar
  • 8,121
3 votes
4 answers
9k views

Portforwarding to multiple computers

Me and my brothers are playing the computer game GTA Online. We are all connected to the same local network. However we experience connection problems sometimes. Now I read on the official Rockstar ...
Black's user avatar
  • 8,121
-1 votes
1 answer
329 views

Reliable online port scanner to check my DSL router? [closed]

can you suggest me a reliable online port scanner to check (open/closed) the ports of my DSL-router ? Thanks !
MimeticPolyAlloy's user avatar
0 votes
2 answers
521 views

How does a router decide which device to route data to if both devices have programs listening on the same port?

Say I have two devices on a router which both have software listening on port 999. A client outside my local network attempts to connect to my public IP address via port 999. How does the router ...
Rudy's user avatar
  • 177
2 votes
2 answers
8k views

Systematic attacks on multiple services & ports (getting past NAT) on hobby server

Fresh install of Fedora 25 Server Server behind a router with only a few NAT-rules Many SSH login attempts from hundreds of different IPs / ports (ever-changing) Recently attacks / exploits on nginx (...
Ruben Solvang's user avatar
1 vote
1 answer
592 views

Listening to all packets on a specific port

I'm using netcat -l 555 option to communicate between two computers on port 555, is there any way I can eavesdrop to whats going on in that conversation from a 3rd computer connected to the same WLAN ...
eyal360's user avatar
  • 41

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