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.

learn more… | top users | synonyms

1
vote
1answer
134 views

Multiple SSH ports for Synology Diskstation DSM 5.1

I have a Synology Diskstation that I recently upgraded to DSM 5.1 (5004). I previously had my system configured to allow connections on both port 22 and port 10000. After the upgrade, it appears that ...
1
vote
1answer
64 views

Make application use specific network interface

I have an openvpn connection and I need it to work only for one application, this app uses an specific local port. I used route-nopull on my openvpn config file and then: ip route add default via ...
1
vote
1answer
36 views

What's the netstat command to get the process name and only for a specific port?

I'm using netstat on Windows 7, I would like to get only the process which are using the port 80 and to get also the name of the process. Not only the PID. I've found this solution to add the process ...
1
vote
1answer
39 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 ...
1
vote
1answer
386 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 ...
1
vote
1answer
57 views

Linux distribution detection with Nmap

When I run Nmap with OS detection it delivers the kernel version of the Linux host instead of the name of the Distribution. Nessus does Os detection based on banners ...
1
vote
1answer
501 views

Cannot access Mongodb from internet

I am using Mongodb database ,which is installed with the ip address 126.22.252.25. The Ubuntu version info is 12.04.3 LTS. My Mongodb uses the default 27017 port. On this local machine I can use ...
1
vote
1answer
973 views

TCP/UDP ports that cannot be bound (permission error), but don't show up in netstat

When attempting to listen on certain TCP or UDP ports, I get weird error messages regarding permissions (or generic messages, depending on the program used to bind). The message in German is "Der ...
1
vote
1answer
677 views

Windows 7 - Can't get response from local servers after restart - Always timeouts

After a long uptime and the installation of some Windows Updates no local server is working. My development system is a Windows 7 x64 Professional installation. I had a full working XAMPP set-up ...
1
vote
1answer
388 views

Restricted ports to non-admins on Windows 7

I work in a restrictive desktop/network environment and I am not an admin on my laptop. The ports available to me are limited. E.g. when I tried running Tomcat, the system refused to open a socket ...
1
vote
1answer
55 views

Make a program use other ports

My school network is behind a very strict firewall, and I can't connect my e-mail and other programs. Are there any ways to avoid this problem?
1
vote
1answer
1k views

Macports gives “sudo: cannot get working directory” error, then fails

Macports doesn't work: sudo: cannot get working directory shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory error getting working ...
1
vote
1answer
5k 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 ...
1
vote
1answer
194 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 ...
1
vote
1answer
368 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: ...
0
votes
1answer
23 views

Monitor switch traffic load on specific port (CISCO managed switch)

For troubleshooting networks problems I need to know how to monitor the traffic (work load) on a managed switch. I read about SPAN for CISCO switches. But it seems to be overkill since it does mirror ...
0
votes
1answer
36 views

How could I test a port forward attempt was successful

I have set a random port number to a private IP address that's connected to my network. This device that exists at that private ip on the network is running linux. I setup this port foward from a ...
0
votes
1answer
33 views

TCP server listen and client listen windows software

I am using Windows OS on an amazon cloud AWS with static public IP. On this machine I need to set up a TCP server to listen on port 2204 for raw data that will arrive from a GPS base station over TCP ...
0
votes
1answer
31 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 ...
0
votes
1answer
32 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 ...
0
votes
1answer
915 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 ...
0
votes
1answer
193 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 ...
0
votes
1answer
156 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 ...
0
votes
1answer
140 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 ...
0
votes
1answer
883 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 ...
0
votes
1answer
173 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 ...
0
votes
1answer
28 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.
0
votes
1answer
158 views

Windows 8.1 Remote desktop (Android app) Connection error

I am trying to set up remote access from my Android tablet to my notebook with Windows 8.1. I have d-link router DIR-600. I am getting Connection error when trying to log on. My Android tablet is ...
0
votes
1answer
207 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). ...
0
votes
1answer
71 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 ...
0
votes
1answer
251 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 ...
0
votes
1answer
130 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 ...
0
votes
1answer
2k 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 ...
0
votes
1answer
432 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 ...
0
votes
1answer
912 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, ...
0
votes
1answer
5k 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
votes
1answer
350 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 ...
0
votes
1answer
328 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!
0
votes
1answer
2k 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 ...
0
votes
1answer
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 ...
0
votes
1answer
555 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
545 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
284 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 ...
0
votes
1answer
770 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
91 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
votes
1answer
727 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 ...
0
votes
1answer
128 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
1answer
239 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
380 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 ...
0
votes
1answer
902 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 ...