0
votes
0answers
38 views

Hiding port number from address.

I have centos 6.5 running some web apps. Currently due the following port forwarding rules, I am only able to access my public content using 127.0.0.1:8080/ Is there anyone to just use 127.0.0.1 ...
4
votes
3answers
919 views

How to force a process transmit over UDP instead of TCP?

I 'm running an ffserver process on a Linux machine, in order to achieve video streaming via ffmpeg. However, there is a delay on video streaming. On ffserver configuration file I define Port 8090. ...
2
votes
3answers
163 views

Is the same port acting as both client and server?

i find something strange in this netstat output. the output is taken using netstat -a -n -o -p TCP command on win 7. Proto Local Address Foreign Address State PID TCP ...
2
votes
1answer
96 views

How to monitor TCP and UDP port changes

I am running software on a server that may be turning off some ports and need to find out what it is. I have the ports I need to check. I just need to find out what is turning them off. How can I ...
0
votes
2answers
3k views

Detect what outgoing ports are bypassed by firewall

My school has a firewall which limits most outgoing ports. There're only TCP/80, TCP/443, TCP/21 allowed. Is there's a way to find out all the outgoing port allowed by the firewall? My current idea: ...
1
vote
3answers
1k views

Open TCP port in Windows 7 and read incoming data, what program to use?

I have an external device which can connect over GPRS to the Internet using a SIM card and I want to see what data it sends. I can program it to use my computer as a server and then use a program to ...
0
votes
1answer
600 views

Ports 1935 and 843 are getting blocked for no reason

I have Windows 7, and my computer has been blocking ports 1935 and 843 for no reason for a while now. If for example, I try to watch twitch, nothing will work because those two are getting blocked. ...
0
votes
1answer
494 views

TCP Connections/Session and Ports

I have some basic questions about ports and sessions. Since all these are related and simple questions, I've asked them together: I understand that for creating a connection we need a socket ...
0
votes
1answer
228 views

How can I remap outgoing TCP ports?

Is there any way to remap a TCP port from a program were you not can change the port number? The program talks on port 4321 and I want it to go out on port 14321 on the local computer.
0
votes
1answer
331 views

stopped a service but outgoing port still exists on netstat -aon

bit more detail.... I have a port, specifically port 2869 for Windows Media Player Network Sharing Service that uses UPnP port 2869, however even when turning off all the sharing possibilities I can ...
0
votes
2answers
129 views

Enabling access to a home server from “Internet” side

I wish to enable remote access to my linux home server, so I can use it when I'm not home. I tried doing so using port forwarding as follows: http://<RouterInternetIP>:<SomePort> => ...
2
votes
2answers
436 views

Program to record data transmission between two computers using a TCP port

I am looking for a way to view data being transmitted over a TCP port between two computers. Is there a software package that allows this? I suppose I could script something to re-route data coming ...
8
votes
6answers
4k views

Port scan revealed port 1111 open. What is it?

I am new to systems administration and have a new server running a website with http (at port 80), https (at port 443) and ssh (at port 22). I did an nmap port scan using my personal laptop and other ...
2
votes
1answer
484 views

TCP port prioritizing on switch/router (QoS)

I have some HP ProCurve series Switch. There is a QoS option for prioritize traffic by TCP/UDP port. I set two ports: one with highest priority and another with lowest. Then I performed tests to ...
1
vote
0answers
319 views

Can not open port 6000 windows xp

I am trying to connect to macincloud using their software and can not. They told me the reason is port 6000 is not open. I spent 3 hours on the phone today with ATT making sure the 6000 port was open ...
4
votes
1answer
848 views

What is the purpose of ports?

I have a few questions in regard to the following explanation of ports I found. The Application layer talks to the Transport layer through a port. Ports are numbered and standard ...
4
votes
3answers
6k views

Cannot connect to guest OS from host OS

I have installed OpenSUSE on VMWare player as guest OS and my host OS is Windows XP. What I want to achieve is to send message from my host (i.e XP), say on port 7000 and receive it on a specific port ...
1
vote
1answer
3k views

How do networking ports work? Can I configure the ports that client and server use?

Let's say i have a "server" program listening on address 1.2.3.4:69 (i.e. remote port 69) When i connect from a "client" program to it, typically i would specify the IP address + port of the target ...
1
vote
3answers
1k views

Tcp Port Open by Unknown Service

Running openSUSE 11.2 x86_64. Here's what a nmap of my IP provides: PORT STATE SERVICE 23/tcp open telnet 80/tcp open http 2800/tcp open unknown 8008/tcp open http I would like ...
0
votes
1answer
225 views

How to know which protocol is used in data transfer and inspect that data?

I've a .net application for windows. This application transfers a lot of data to and from a particular server on a fix port no 8888. I tried 'Tcpview' but couldn't figure out anything useful. I only ...
2
votes
1answer
9k views

What does it mean when a portscan shows a port as “tcpwrapped”?

Interesting ports on 192.168.1.76: Not shown: 998 closed ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 5.2 (protocol 2.0) 62078/tcp open tcpwrapped I see tcpwrapper ...
0
votes
3answers
417 views

What typically uses port 44380?

A company just asked me to open port 44380 in my firewall so that their software could work. This made me wonder... what is the customary use for port 44380?