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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WAN Access Issues on LAMP Server

I am running a LAMP server and having trouble connecting over the internet. I confirmed everything is working fine locally. All other PC's on my network can access the server over the LAN. The ...
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0answers
16 views

Nmap shows 554 and 7070 open on EVERY machine even when they are closed/filtered

Every single machine I scan shows port 7070 and port 554 as open regardless if the ports are closed/filtered. It will still show those two ports as open even if the target is offline (and the scan is ...
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1answer
75 views

What cable do I need for this port?

I have tried to plug a monitor to a Dell computer into the VGA slot and I have received this message: This computer has an add-in graphics card, but the monitor is plugged into the integrated video ...
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1answer
11 views

opened port on router for java socket

I am trying to make a peer to peer application and I want a port to exchange connection information and I want to ensure that this port would not be closed from the firewall on the way between peers ...
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2answers
2k views

Forwarded port 80 to VM using VirtualBox, how do I open access to network?

I forwarded port 80 to my Ubuntu Server VM, and the website is very much accessible locally. How do I allow incoming port 80 connection to Windows 7 (so it will be forwarded to the Ubuntu Server)?
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2answers
32 views

What type of port has a logo with one long line and three short lines under?

On the side of my laptop (ThinkPad x40) there is an odd place for connecting wires, directly under one of the USB ports. The port looks similar to those for USB, with a similar rectangular shape and ...
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2answers
2k 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 ...
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1answer
2k views

How to open a port for all users: NSA 2400

I'm trying to open up port 8332 for all users behind my firewall but can only find instructions for doing so for a single IP address. How do I make sure all my users can use a specific port? I've ...
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2answers
2k views

Can't load Fiddler because Fiddler Port in Use

Windows pop-up message as belows: Unable to bind to port [Localhost:8888]. ErrorCode: 10048. This is usually due to another service running on this port. Run NETSTAT -A at a command prompt. What ...
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2answers
3k views

Does it matter what UDP port a WOL signal is sent to?

i have seen many WOL instances use port 7 and many use port 9, does it matter? Isn't it just looking for a WOL packet at layer 2 or ethernet?
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3answers
2k views

Open port 5672/tcp for access to RabbitMQ on Mac

I have RabbitMQ in its latest version installed on my Mac with default configuration and when I'm accessing it from localhost there's no issue what so ever. But today I build a linux machine on local ...
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1answer
15 views

COM Port in use

When i am trying to install a particular software in break stating that COM PORT 3 is in use and to stop any app that is using that. In Windows 7 PC Question How can I find which application is using ...
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4answers
9k views

Windows 7 is blocking ports

I am trying to open port 80 and 3690 for HTTP and svnserve respectively (inbound for both). I have Windows Firewall off, and have tried temporarily disabling Mcafee VirusScan Enterprise, to no avail. ...
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3answers
67 views

How to determine why port 443 is already in use?

I'm running Apache 2.4.10 on a Windows 7 machine and am trying to add SSL connections. Port 80 connections work fine, and I'm trying to add port 443. When the httpd.conf gets Listen 443 added it ...
6
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2answers
2k views

Why is there electricity flowing through my VGA and other ports?

I am using Windows 7 on a Sony VAIO laptop. When I connected my PC to the charger, I felt a little electric shock when I touched the VGA and other ports. I tested with a current detector and found ...
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1answer
2k views

What is the difference between Port and Connector?

I want to know the difference between Port and Connector in Computer (the physical ones),and how can i tell that this thing is a port or connector ? I know that both terms are used for the same ...
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1answer
3k views

Can't access my IP camera over the internet

I have an EasyN F3 (F3-M166) IP camera. It works fine on local IP address, but I can't access it over internet. This is what I have done step by step: I configured the local IP (camera_ip) and port ...
0
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1answer
37 views

What ports does WeChat use to transfer data?

I want to block the messenging service, wechat, on my netgear router. Does anyone know the TCP/UDP ports that wechat uses to communicate? WeChat is a Chinese messenging application developed by ...
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0answers
23 views

Difference between port forwarding - port triggering - port binding

Can anyone please explain me what is port forwarding, port triggering and port binding. On reading the things separately i understand the things, but on comparing these things i got confused.
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1answer
22 views

How i open a port (port forward) on this specific router

http://gyazo.com/86e63e79d11835ec9ab71e0b8680cc8d here is a pic of how my router looks like i cant find it in this one. I know how to open ports on my other routers. Please help Model:Home Station ...
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0answers
10 views

Multiplatform: Is it possible to perform network scan for a certain open port on a certain IP address with just one click?

When I want to scan for a certain network's open port (say 8080) in a certain IP address (say 111.222.111.222), I go to http://www.t1shopper.com/tools/port-scan/ And I fill the fields port ...
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6answers
8k views

WWAHost.exe using same port as Apache

I have installed XAMPP 1.8.1. on my Windows 8 64bit machine. I'm now facing a problem with ports. This is what I got from XAMPP Control Panel: 11:52:43 AM [Apache] Problem detected! 11:52:43 ...
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1answer
43 views

Using Telnet: Port number

With using telnet I used port 25. Example: telnet x.x.x.x 25 I had another server today that used port 23 instead. For the future, how would one easily know which port to use? Does this port ever ...
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2answers
38 views

Torrent ports and firewalls

I use this uTorrent program, under its settings 'Listening port' I set up a port of 46301, and also open that port in firewall. But whoever connects to me to leech, they connect to random ports ...
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8answers
82k views

Manually closing a port from commandline

I want to close an open port which is in listening mode between my client and server application. Is there any manual command line option in Linux to close a port ?? NOTE: I came to know that "only ...
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1answer
27 views

Xampp error, port 80 in use with PID 4 in virtualbox

I noticed there is a lot of information about port 80 errors with xampp, however, there is not much information about this error on virtualbox. On my main computer, xampp works perfect. On my ...
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1answer
4k views

How to use LAN1 port as second WAN port? (dir-615)

I have STB, internet connection with PPPoE and router D-link DIR-615 with dd-wrt. I want to STB ip will be assign from ISP directly. Or set up iptv something different. P.S. Router is D-link DIR-615 ...
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1answer
2k views

Port forwarding with IPTABLES and VBox

I have a small problem with getting a proper configuration of iptables under Ubuntu. But before, let me describe the network configuration: I am using xDSL line terminated with modem+router+DHCP ...
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1answer
88 views

Unable to connect to the MKS: Failed to connect to server xxx.xxx.xxx.xxx:902, the port is closed

I have a server with Vsphere ESXi 5.5. when i try to start a virtual machine with the vsphere client i get this error: Unable to connect to the MKS: Failed to connect to server 172.16.63.3:902 and ...
2
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1answer
3k views

How to Password Protect USB Ports?

Is there a way to Password Protect the USB Ports in Windows 8 so that every time a USB is inserted a prompt comes out asking for a password before it can be used on the PC ? Is this possible without ...
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1answer
451 views

How to make a QOTD server or similar

QOTD ("Quote of the Day") is a protocol that can be open on servers by default on port 17. I have googled and googled and for some reason there is pretty much no information on how to make a server, ...
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1answer
50 views

Reinstalled Windows 7 - Now cannot connect to any activation server or Microsoft Exchange

I reinstalled Windows 7 this morning, and now I am unable to connect to any activation servers for any Adobe software, and I cannot connect to Office 365 Microsoft Exchange server in Outlook 2013. ...
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7answers
62k views

How to “restart/repair” an USB port?

My laptop has two USB ports, but one is broken, so I use a USB hub in the other good USB port. In that USB hub, I use a mouse and keyboard. Suddenly, that USB port doesn't detect the mouse and the ...
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0answers
13 views

Windows Server 2008 IP porting

We have a Dell server running Windows Server 2008. This server has two NIC cards. One NIC is connected to a private network and the second is on a public. We need the ability to route the public IP ...
0
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1answer
35 views

How can I check which ports are in use from the Linux command line? [duplicate]

I'm running a Node.JS application and need to figure out if something is using a certain port. How can I do this from the linux command line?
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1answer
33 views

Port forwarding does not work

I am connecting to office network through VPN. I have two servers A and B. I have ssh/tomcat access to A through VPN but not to B. When I ssh into A, from there I can ssh into B. Also, B is running ...
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0answers
150 views

Port forwarding on a Huawei EchoLife HG8245

The problem is port forwarding in my EchoLife HG8245 router. I am able to port forward, and I know it works. But after some time I've came with the conclusion that my router only accepts 1 connection ...
0
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1answer
47 views

Opening a port on CentOS server not working externally?

I am trying to to setup a Ghost blog instance on port 80 of my CentOS 6 virtual server. There are no pre-installed web servers occupying port 80. If I run Ghost in production mode as a background ...
0
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1answer
26 views

PID not shown under Services in the Task Manager on Windows 8

I'm trying to run a program that defaults to port 9000 but there is an unknown source using that port. I found the PID by using, netstat -aon | more and went to the task managers service tab ...
2
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3answers
254 views

Which Powershell Function could check whether a certain port is in LISTENING state on localhost?

Introduction Aim: to check whether a port is in LISTENING state on localhost by using a PowerShell function The following command: New-Object Net.Sockets.TcpClient.Connect("127.0.0.1",10389) ...
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5answers
463 views

Cannot Delete Unwanted COM ports - Windows 7

I recently installed a Cannon wireless printer for temporary use, the drivers of which set nearly all my COM ports to be constantly in-use (an occasionnal bug noted in the ReadMe after installation ...
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3answers
10k views

How to enable or disable usb ports on windows vista pc?

I want to ask how can we enable or disable usb ports on windows vista pc. Also i have 6 usb ports , 2 in front and 4 at the back, so it it possible to disable the front usb port and enable 4 ports at ...
0
votes
1answer
69 views

After recover sshd_config on my VPS my TeamSpeak 3 client can't connect with server

I'm destroy my default sshd_config file in /etc/ssh/ on my VPS and I'm recover this to default one. After this I'm trying to connect with my TS3 server on this same VPS. OS says me TS is ON and ...
5
votes
3answers
31k views

How can I check which ports are busy and which ports are free on my Linux machine?

Is there any command line command or any other way to find and list out the busy and free port numbers on my Linux machine?
0
votes
1answer
32 views

Test connection to a port without actually connecting to it

I have a python socket server (single-threaded, accepts only one connection) running somewhere. I connect to that port and do my things. How can I detect whether port is open or closed without ...
3
votes
2answers
149 views

How to list all hosting services on Windows 7?

I cannot host on port 80, because there is an application on the background, which hosts on port 80. How do I find out which program it is?
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2answers
2k views

How to access NodeJS server on LAN?

I'm not the most knowledgeable guy ever with networking, but here goes... I've created an application with NodeJS and I'd like to test the application on my LAN with my family. The application ...
0
votes
1answer
144 views

Netcat error: Can't grab 0.0.0.0:80 with bind

When I tried to listen on port 80 in Windows 7 with netcat, I get this error: C:\Users\sashoalm>echo "hello, world" | netcat.exe -l -p 80 Can't grab 0.0.0.0:80 with bind On the other hand, ...
0
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0answers
18 views

Bad Results from Port Check Sites

I'm not a network expert, though I know how to set up a static IP and forward ports. I've always wondered how port checking sites like http://ping.eu/port-chk/ work, because whenever I try them on ...
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3answers
146 views

How to block all ports except 80,443 with iptables? [duplicate]

Blocking all ports(in and out) is easy but it's hard with the word "except". I don't know any rules that satisfies the condition. PS: I know this question is nothing new. But in fact, I didn't find ...