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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193 views

Would an USB external graphic card disable the on-board graphic card?

I am trying to connect my Dell Slim Studio 540S with 3 monitors. Would an USB external graphic card like this Sewell USB to Display (video) disable the on-board graphic card in the Dell Slim Studio ...
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1answer
365 views

MySQL error 2003

I have PC with MySQL running on it (on localhost), there is also Java App, that uses db and connects to MySQL without problem, but when I try to connect via command line(cmd) I get this message: ...
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20 views

cli commands for Billion 7402GX

hope I've come to the right place. I have a Billion 7402GX which needs port forwarding done for CCTV. I can't find the Virtual Server section in the web gui. Is there a cli command I can use to show ...
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23 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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505 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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77 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 ...
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131 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 ...
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373 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, ...
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124 views

Ubuntu + SSL ports + AVAST

I have an interesting problem with communication via standard SSL ports. Fresh installed Ubuntu 14.04 server + Postfix + Dovecot, SASL authentication provided by Dovecot, self-signed certificate ...
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814 views

How to forward blocked ports by ISP

So I've been trying to setup a TeamSpeak 3 server on my pc but ports (9987,10011,30033) are blocked by my ISP, I've contacted them to unblock them but they didn't accept, and it's the fastest ISP in ...
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145 views

How to find what's listening on specific port in Win7?

I'd like to find out what's blocking port 80 on my system. I've found the answer here but... as the result I get "couldn't not determine owner" (or something like that - I use Polish version so exact ...
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23 views

Port forwarding with two routers?

Can someone walk me through port forwarding with two routers, I will post screenshots as needed. I've tried many tutorials online and I can't seem to get it to work.
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220 views

Windows Firewall inbound rules still blocks ports

I applied inbound rules for port: 1935, as well as outbound. When I check on canyouseeme.org, it says it (port 1935) times out. When I completely turn off Windows 7's firewall, it works without a ...
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183 views

Should a port scan from the WAN side return any open port on a new router (TP-Link ER6020)?

I purchased a new router (TP-Link ER6020), turned it on and connected my computer to it. The router is running in NAT mode, I did not change a setting (despite providing dsl authentication details). ...
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1answer
58 views

How can I check for externally-open ports on a given server?

I need to programatically determine whether a given port on the server that my script is running on is open from the outside world. I'm working under the assumption that the only reliable way to ...
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1answer
182 views

Mystery port on my Samsung laptop (NP700Z5C)

What is the port in the picture of my Samsung Series 7 NP700Z5C? It's called a "Display Port" in this image (not from Samsung, admittedly), but it's clearly not (the Samsung documentation even ...
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111 views

Open ports 8456, 8832, and 54321 on my wifi router

Ran a port scan against my WiFi router (Trendnet TEW-633GR), found this: PORT STATE SERVICE 80/tcp open http 8456/tcp open unknown 8832/tcp open unknown 54321/tcp open unknown Port 80 ...
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1k views

Firewall open ports for vSphere

I need to open ports on a firewall, so that a client could access his VM console through vCenter server's Web Client. I had a look at this page about port description, but I am a little confused. I ...
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304 views

Stop listening port 135

I have done following things Navigate over to key: HKEY_LOCAL_MACHINE \ Software \ Microsoft \ OLE At the right column, locate the value "EnableDCOM" and modify the value to "N". [3] Navigate to ...
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765 views

Centos 6 server does not open ports

So after some battling and struggling with the firewall, i see that I may be doing something or the firewall isnt responding correctly there is has a port filter that is blocking certain ports. Okay, ...
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1answer
4k 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 ...
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1answer
253 views

Opening port 3000 EC2 Amazon web services

I am trying to use nodejs and socket.io to deliver a webapp, which use websocket on port 3000. I have opened port 3000 on my EC2 instance in my management console by adding the inbound TCP rule to ...
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1answer
292 views

Port 30005 and 30006 in ADSL router

I've seen that iptables allow traffic to ports 30005(tcp) and 30006(udp). What is those port intended for? I've google a bit but I didn't find anything significative. Thanks in advance!
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1k views

Cannot open port 8080

I'm running a VmWare with an application under JBoss starting up on port 8080. I'm able to access the app from outside the VM if the iptables are off. However, I must turn on iptables due to some ...
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37 views

Mirroring web server in different port

I have a local web server which is accessible from the Internet through port 3333. I used port forwarding to achieve this. And now I am planning to develop a solution (possible network configuration ...
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495 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 ...
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478 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: ...
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1answer
272 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 ...
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1answer
715 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. ...
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1answer
87 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 ...
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1answer
689 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 ...
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1answer
123 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 ...
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236 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?
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365 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 ...
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1answer
861 views

netstat shows open port with pid for process that doesn't exist?

We have a program that listens on a port to receive info on running a report. Upon closing and reopening the program, we get an error saying that the port it uses is already in use. Looking at ...
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1answer
275 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.
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1answer
393 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 ...
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1answer
118 views

How can I monitor ports on Windows?

What is the simplest way on "local" (1*) Windows, for known ports, to: Find out if it is used. Find out as much as possible about what is behind the port. Find out as much as possible about traffic ...
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1answer
334 views

Emulate Port Blocking on Airport Extreme

I'm trying to restrict all the computers on a network to only be able to use OpenDNS so I can manage what sites they are allowed to access. I can't really do this by locking users out of the network ...
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1answer
493 views

TCP connection to my host's public IP address using Linux netcat

I need to make a TCP connection to my machine through an application that needs only the public IP address and port to connect. I have been able to do it in Windows, but I need to do it in Linux ...
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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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1answer
538 views

8080 port in nginx not able to serve for certain wordpress website

I don't know if it's related to the domain records pointing rules. I configured for other website as well and they are fine. I used 8080 as the port for the websites. But for this particular site, ...
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1answer
70 views

How can I connect to a home automation web controller?

I've bought a remote web controller for home automation. I'd like to write a client software by myself, because the built in interface is ugly & not user friendly. Thus, I'd like to find the ...
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1answer
153 views

Can't access port forwarded to Windows 7 machine

Before, I never had this problem with Windows 7 – the router always had the same settings like below. Installed Windows 7, all drivers, etc. Updated Windows 7 to SP1 (a bunch of KBs before SP1 ...
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1answer
1k views

IIS 7 Url Rewrite for only port 80

I have a site where any traffic coming in on port 80 needs to be redirected to port 443 (https). According to this article, that is easy enough and it works. My problem is, however, that this is a ...
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1answer
107 views

Impact of deleting VLAN over Port Admin/oper status?

Is there any use case where deleting a VLAN causes an interface's admin/oper status changed?
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524 views

Web Interfaces not opening even after Port Forwarding is said to be working!

I'm encountering this strange problem which has baffled me to the ground, and which I haven't encountered even after years of doing port forwarding .. ! I am hoping somebody here can help me solve ...
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1answer
409 views

Failed to open my port for upload purpose \ UTorrent

when doing the download\upload test in UTorrent program it claims my port is not open (Default 17690). After I plugged my machine directly to the modem (suspect of port forwarding not working), after ...
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1answer
116 views

Open Port \Win 7

when doing the download\upload test in UTorrent program it claims my port is not open (Default 17690). After I plugged my machine directly to the modem (suspect of port forwarding not working), ...
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1answer
219 views

Ubuntu mail PHP port error

I was able to send mail up until last week when godaddy changed there mail server name. Im not sure what file to update with the new server name. Im getting this error message when trying to send ...