A port provides a location for an application to interface with the network. If there is no application that is listening at a particular point, data sent there will never be used.

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4answers
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how to disable feature that opened port 445 on windows server?

I'm trying to disable services that I do not need, to improve latency and improve security. I found that port 445 is still open by doing telnet on localhost and port 445. As I do not need port 445, I ...
0
votes
1answer
1k views

connect to paltalk server using a proxy

Hi I want to use paltalk, which is a kind of chat software, but the ports that this applications uses are closed in my country. What I need to do is to use a proxy server. Unfortunately the software ...
1
vote
1answer
56 views

What problems I'll get if I will fix the network port my application is listening? [closed]

I observe this behviour from very famous projects. For example apache and nginx, they both by default trying to listen port 80 and if it's already occupied then they just fail to start and need to be ...
-1
votes
1answer
64 views

Can a splitter be used to stream video from a one port modem ie roku [on hold]

I have a time warner cable modem with one port, can I use an ethernet port splitter for the roku?
1
vote
1answer
733 views

Port Forwarding ADSL

I have TP LINK TD-8817 as my ADSL Router, and TP-LINK TL-MR3420 as Wifi Router. I've done to open port 80, based on this result *please see this picture and the problem is : when I access my ...
2
votes
3answers
3k views

Minecraft servers - 1 external IP, 2 servers, 2 ports - avoid specifying port in game - SRV record

I have two minecraft servers, on sub-domains. www.server1.example.com and www.server2.example.com. server1 is port 25565, server2 is port 25566. When users want to connect to a non-default port in ...
2
votes
1answer
237 views

SVN UPDATE fails because system runs out of sockets

I am setting up a terminal server for a small group of developers. They will all be using the SVN client to access the central SVN repository. Every project in our SVN repository contains lots of ...
-1
votes
3answers
335 views

Get a concise list of open (listening) sockets in Fedora 17

I've tried netstat and lsof with various options, but I'm getting garbage results. I'm interested to know the following data: applications which binds the socket to port - port number I would like ...
-1
votes
1answer
54 views

Why do USB ports cease to work? [closed]

I had an e-reader plugged into one of the 3 USB ports of my laptop. Later I realized it wasn't charging up anymore. I switched ports and the issue was gone. Why do USB ports stop working suddenly?
0
votes
0answers
116 views

iOS Hotspot Port Foward Hack (NAT)

Good Day, I have a hardware device that has a WiFi chip that requires port fowarding on a router to normally work. That is, my server sends data to the router, which has port foward info to foward ...
0
votes
2answers
626 views

Running VPN server and Apache conflicting ports

Currently my setup is with XAMPP and a simple VPN server provided by Windows Network connections. If I delete the Incoming Connections, start apache and then remake the VPN server like this: It ...
2
votes
1answer
1k views

iptables firewall only allows internet traffic if source port of 80 is allowed

I am configuring an iptables firewall, currently just to allow http and https traffic. It is working but under a particularly strange rule - I must allow incoming connections with a source port of ...
0
votes
1answer
289 views

Port forwarding between NIC cards

I have a network in the 192.168.10.xxx range. On one of the computers on the network there are two NICs. One NIC is in the 192.168.10.xxx subnet, connected to the main network. The other NIC is in the ...
0
votes
1answer
218 views

Find out port for a specific USB device is on Mac OSX

I have a Nexus 7 tablet attached to a Mac Min, and I need to figure out what port it is connected to. I am managing someone elses code, in which they litearally define the port: ...
0
votes
1answer
25 views

Mapping someip:port to a someip/suburl

I would like it so that when my router gets a request for http://192.168.0.33/plex it basically returns http://192.168.0.33:32400 I'm wondering if this is possible and if some routers do it. ...
1
vote
1answer
55 views

Cannot access myself with global ip, others can

I don't really know how to phrase this better, so I'll just point out what works and what doesnt: a) I can access my service through 127.0.0.1:port b) My friend can access my service through ...
1
vote
0answers
1k views

vnc via ssh tunnel: channel 3: open failed: connect failed: No route to host

I was used to connect from A to a system B through vnc with ssh tunnel via C. I do the following: In B I start the vncserver: vncserver and let's say I get the :12 In A I open the ssh tunnel: ...
0
votes
2answers
2k 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: ...
0
votes
3answers
611 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 ...
3
votes
1answer
55 views

Can a wrong i/o port call damage the hardware?

I was tampering with the i/o ports of my computer (an UMID BZ notebook), specifically with the embedded controller and ACPI, in an attempt to switch some deactivated on-board hardware on. When I ...
0
votes
1answer
209 views

SSH to specific computer behind a router if local IP is known

I'm hosting a number of websites out of different boxes behind a router; when I was only hosting one, it was simple enough to forward port 22 on to the hosting box and use that one as a remote server ...
1
vote
0answers
294 views

How to close suspicious port 999 garcon, is it malware?

On Mac OSX, I ran the command nmap localhost and I found I have this suspicious open port: 999/tcp open garcon Then I tried to see if there is an associated process, but nothing shows up with ...
1
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1answer
33 views

open port for memcached in network

I want to share my memcached instance in my network. What is the best way to do this to give the network access to it? How I open the port for it? Is there some easy way? Thanks for helping
0
votes
1answer
468 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
72 views

Is there a way to find all processes which accessed a linux port?

We are using Octopus Load Balancer for connecting to database from Linux. The Load balancer throws following error. I doubt if it is due to the assigned port being accessed by some other process ...
0
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0answers
44 views

Counter MAC Spoofing with Cisco

I was wondering if someone could help me with the needed cisco commands to configure a switch to only allow certain mac addresses on certain ports. So that one mac adres can only connect to the ...
1
vote
1answer
161 views

Who is listening on my 80 port [duplicate]

In My PC, I am running : telnet localhost 80 and it seems that there is an answer. No IIS runs, no java server runs. How do I know which process listens to 80 port?
0
votes
0answers
104 views

Port forwarding with WRT54GL running DDWRT

I am using Linkys WRT54GL with version 14929 std gen of ddwrt, this is supposedly the best version of DDWRT according to their own forums. I'm having problems with port forwarding. I have just done a ...
5
votes
4answers
5k views

Why is System listening on port 8000?

I noticed by accident today that I have some unknown webserver listening on port 8000. Opening http://localhost:8000 just returns 404, so I don’t get any hint what exactly is listening there. I’ve ...
7
votes
2answers
4k views

No idea what is listening on port 80 in OS X

I'm on OSX Mountain Lion 10.8.3, and I've freshly rebooted my Mac. I want to start a service (like Apache on port 80), but there is already something going on with port 80: telnet localhost 80 ...
0
votes
1answer
327 views

sshd service listening on multiple ports

Well, I need use multiple and distinct ports where sshd will be listening, for distincts clients. Each client connect a different ssh port in real time. Can I put sshd service listening on multiple ...
0
votes
0answers
106 views

Send data from file to local UDP port

I've got an application, A, that listens on a user-defined UDP port for a specific message that normally comes from another application, B. Application B has a tool that allows recording these ...
1
vote
0answers
559 views

FFmpeg/avconv and UDP - connect listener after sender?

I'm trying to troubleshoot a port binding issue in avconv/FFmpeg. I have two test commands; one which sends an audio stream over UDP: avconv -i test.wav ...
0
votes
1answer
118 views

security risk of opening up a port to access znc [closed]

I run znc on my home server, and I was thinking about opening up the port for it on the router so I can access znc from my computer at work. My znc accounts are password protected. Is it a substantial ...
1
vote
2answers
892 views

Can't connect over internet but port is open

I trying to connect to my own computer over internet over port 3389, when i go to site yougetsignal can see that on my external ip port is open for sure. Also on firewall options Remote Assitance is ...
0
votes
1answer
566 views

Forcibly unbind a port in Windows?

So, I'm trying to set up a subversion server on Windows 7, and am having a problem with bound ports. I searched around a bit, and found this question about how to handle this, but I'm having a problem ...
3
votes
1answer
4k views

How to find which ports are blocked?

I have root on two machines A and B and I would like to know which ports can't be accessed on B from A. Is there some way to run a command line application on B that listens on all ports and then run ...
0
votes
1answer
386 views

Access xampp outside localhost

I have created a xampp page on Windows server 2008. I am successfully able to load the xampp page and other php pages that I have created using localhost:8080/. Firstly : I want to know how can I ...
8
votes
7answers
36k views

Apache Server on Windows 7 opening up ports?

I have installed Apache 2.2.14 on Windows 7 and can view my web pages using both http://localhost and http://127.0.0.1 but when I try to access the server from another computer on the same router, it ...
1
vote
0answers
150 views

USB hub assigning random com ports when Windows 7 PC or USB Hub are rebooted

I have four hardware devices that are plugged in through a self powered USB hub. Currently the devices are assigned COM1 COM2 COM3 COM4 through device manager as hoped. However, when rebooting the ...
0
votes
3answers
2k views

Can't connect to remote MySQL server but works with localhost

I can't connect to my remote MySQL server UNABLE TO CONNECT TO ANY OF THE SPECIFIED MYSQL HOSTS I did some tests and it works with localhost on the server. My user has the privilege to connect ...
2
votes
0answers
670 views

Cannot start WebSite because port 80 is being used by W3SVC.exe

I have deverloped a website at work and we typically use port 80/443 for our websites (in development). This has worked well until today when starting the website gives me the error (IIS 7) This ...
2
votes
1answer
254 views

Netgear WNDR4500 listening on port 80

I have a Netgear WNDR4500 that I use for my home router. I also have my own domain with a subdomain point to my IP. I happened to browse to it today and noticed the management console was listening ...
1
vote
2answers
931 views

HTTP, HTTPS and FTP is not working but SMTP and IMAP are working

Yesterday on a computer of a friend a strange thing happened. after booting the ports for http, https and ftp are closed but e-mail is still working. in the control panel the Windows firewall seems ...
0
votes
1answer
88 views

windows 7 port open issue

I set up a web server on my Windows 7 computer and want to open port 80 so outside computer could visit my web server. At first, I thought it's the firewall blocking the port, so I open a new rule on ...
0
votes
2answers
113 views

Linking Domain Names to Port Numbers

I have a [game] server (CentOS) that has about 10 used ports. For one game in particular, I have 2 servers: a private one and a public one. The IP for them is the same, so to differentiate between ...
6
votes
1answer
383 views

268 Ports Associated with Chrome

I'm currently using a Windows box, running Chrome 27 on the dev channel, and I have what I believe to be an unusually large number of listening connections connected with the process. The following ...
0
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1answer
202 views

Port Priority on TP-Link 8951nd Router

First of all i apologize for my bad english :D I have a TP-Link 8951nd ADSL Router witch connected to Xbox 360 Console and PC with ethernet port. i want to set priority to the ports so if xbox is ...
0
votes
1answer
229 views

changing default SMTP port in Outlook Express 6 permanently

Every time I use Outlook I need to change SMTP port to 587. The problem is that every time I start the program it restores the default port 25. How can I set the port to 587 permanently?
0
votes
1answer
335 views

Setup SSHd on port 522 on CentOS 6.3 (x64)

I currently run a server with SSH on a non-standard port for security reasons. That was 522 on CentOS 5, but CentOS 6 doesn't (easily) allow SSH to run on any port below 1024, other than 22 ...