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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How can I find why a port is used in Ubuntu Server? [duplicate]

I recently installed Kamailio 4.0.4 on Ubuntu Server 14.04. After first run. 0(5400) ERROR: <core> [tcp_main.c:2932]: tcp_init(): ERROR: tcp_init: bind(a, 0x7fb5b0783344, 16) on 127.0.0.1:5060 ...
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13 views

How to connect mobile with PC suite?

How to connect gfive w1 mobile through com port to connect to PC suite? Mobile has two options mass storage and com port upon connecting with USB wire If leave it automatically update from Windows ...
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0answers
18 views

Configure http port to 80 from 8080

Wildfly use port 8080 by default. How to change this to 80? So that I don't have to always add colon 8080? <socket-binding-group name="standard-sockets" default-interface="public" ...
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2answers
53 views

What is the 'Real' Definition of a PORT? Where are they installed?

I am confused the concept of a PORT in Networking. But am not clear with where do they exist? My Queries... Where do they reside? Can I change them? How does the ISP blocks a Port(I ...
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13 views

USB Port not charging Galaxy S5 Tab

My Galaxy S5 Tablet will not charge through the USB port 2 0r 3 although it charges normally through the wall connection. How can I test the power output of a USB 3 port. My PC is a very high spec ...
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2answers
31 views

Allowing port access on Windows

I have a message broker running on my computer on port 1883. I tried to telnet that port (to test its accssibility) from a computer on the same network but that didn't work. How can I allow other ...
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2answers
18 views

Q: Is it possible to monitor SSH activity across local network (within organization)?

Is it possible to monitor SSH activity within the local network of the organization? Specifically is it possible to: View open SSH connections per user/machine along with the servers they are ...
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29 views

Port Of 8 ball pool app [closed]

Which port is being used by 8 ball pool app game? Actually I want to block this port but does not know the port. And how can I block it in Tp-Link router?
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2answers
30 views

2 Separate Machines, 2 Static IP Address. No connection Outside ISP Network

I have two separate physical machines. The first one is running CentOS 6.6 x86_64, and the second is running Ubuntu 14.04 LTS. (also 64-bit) Here's the issue. Both servers have a direct connection to ...
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3answers
28 views

Port forwarding testing

In trying to check if I setup Port Forwarding correctly for my IP security camera none of the services report the port open. I can access the camera from within the LAN, but can't see it from the WAN. ...
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1answer
13 views

How to invoke Privoxy?

I have installed Privoxy on Windows 7 64-bit and by searching through it's docs I have found that i need to enter some command line arguments to install the Privoxy service. Now, where and how do I ...
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2answers
29 views

Forwarded port 4433 to my PC's IP

On my router ASUS RT-N18U is port 4433 forwared to my PC's IP address. I've not done this and I don't know what does is mean. Should I be worried? EDIT: And also ports 60868 and 46153
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29 views

How to make content of port 8080 available to port 80

I have a web page on port 80 to control a rover and I am running mjpg streamer on port 8080 to stream webcam output. I want to be able to see the stream on the web page of port 80. I have already set ...
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1answer
36 views

PF: Can't open port on OS X

Have troubles opening the port 9 on os x 10.10.3 yousemite using pf firewall. I want to do this for being able to get wake-on-lan packets to this port. I assume that for WoL to work the port (on the ...
0
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1answer
59 views

Set up wake-on-lan for mac os x via Actiontec T1200H Router: Ports 7 and 9 are closed

I've got two macs connected to home wireless network via Actiontec T1200H Router. Both macs support Wake on Wireless (in About this Mac-->System Report-->Network-->Wi-fi-->Wake On Wireless: ...
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14 views

Set up wake-on-lan for mac os x via Actiontec T1200H Router: Ports 7 and 9 are closed

I've got two macs connected into home wireless network via Actiontec T1200H Router. Both machines have "Wake for network access" checked in System Preferences --> Energy Saver means that both support ...
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0answers
29 views

Client not connecting to port running openssl s_server

Question Context: I want to test a TLS handshake and see all the output (for learning/work related purposes) between my local computer (running OSX Yosemite) and a remote work server (running amazon ...
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38 views

Forwarding port through 2 routers mikrotik and tplink

I have 2 routers in my network: Internal lan 192.168.0.x is behind a router tplink TL-T480T TPlink Lan is 192.168.0.2 TPlink wan is 192.168.88.252 TPLINK is behind a router Mikrotik 750, Mikrotik ...
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0answers
39 views

Which port do I need to open?

Currently we have a bit of a dodgy setup with our firewall, and are using an ngrok program to effectively punch a hole in out firewall to allow a program through (jvue). Unfortunately, this is the ...
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0answers
18 views

Accessing Web UI with Spark1.3.1

I am currently building and deploying spark with standalone mode, including one master node and two worker nodes, on Google Container Cluster. For monitoring purpose (also connecting to master from ...
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0answers
14 views

Disable management over HTTP and Telnet for Verizon/Actiontec gateway?

I'm trying to disable gateway management using insecure transports. The gateway is an Actiontec provided by Verizon. Gateway management is available under Advanced → System Settings. The ...
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0answers
18 views

Asus motherboard not seeing CD Rom

I have http://www.asus.com/Motherboards/P8H67V/specifications/ motherboard. Whenever I plug in a CD ROM to SATA 3Gb/s port it's not picked up by BIOS. However when I plug it in to SATA 6Gb/s port it ...
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0answers
29 views

Disable Fortitoken on a Fortigate Firewall

I made an error while configuring my admin account on the FortiGate 60d and enabled forti token for 2 step authentication. Thing is I enabled the wrong token and I do not have that device with me. Now ...
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1answer
16 views

MySQL: Port issues on an domain network setup

I am looking for options to have a MySQL server on corporate environment where opening a port in the Windows Firewall is quite difficult (a lot of red tape). At this point I am not looking to have a ...
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2answers
57 views

unknown open ports/services 54409 and 16808

I have a Linksys EA6400 router. Today, I have noticed in the log file some activity from multiple ip addresses on 2 ports that are open: 54409 and 16808, and I do not know what is going on there. I ...
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63 views

Cannot connect SSH through PuttY even though server is online

I'm trying to connect to a server via SSH. The server is reachable according to http://www.infobyip.com/sshservertest.php and SSH works without problems on Android (JuiceSSH). However, PuttY errors ...
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88 views

How to block counter strike ports on router?

I have Cisco E2500 router and I need to block Counter Strike ports so that user would not be able to connect to it. Also, is it possible to block Skype ports so user would not be able to call to ...
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5answers
757 views

What ports are used by an application [duplicate]

I'm testing an application which opens its own ports (acts as a server for these ports, hence listens at that ports) and where the same application connects to ports bound by other applications (acts ...
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112 views

Opening ports in OSX Yosemite for development servers without switching off the Firewall

In OSX Yosemite I need two ports opened, port 8080 for my Dart Server and 8081 for a Tomcat Server. I basically want to fire up a browser on an Android/Apple phone/tablet and on a Windows Desktop, ...
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1answer
52 views

Apache wont start, port 80 in use by a system process, found baiduspider

Ok so I have uninstalled IIS on my windows server and decided to try Xampp to host my domains. Port 80 is in use and I have tried all of the fixes that I have came across for the past 2 days. I was in ...
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2answers
38 views

SSH vs Apache port 443

I want move SSH to port 443, but is used by https. In /etc/apache2/ports.conf I commented the lines for listen by this port. In the default site available also commented the lines. For finish, I ...
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193 views

CS:GO SRCDS and iptables (firewall)

I have very strange problem. This morning I wanted download, install and host small server for CS:GO on my VPS. I used this tutorial: ...
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1answer
39 views

Where do port knocking services listen for incoming knocks?

I'm trying to understand how a port-knocking daemon is able to monitor for knocks, independent of the firewall rules (e.g. accept/drop/reject packets). I've installed knockd, which listens for lets ...
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63 views

What is the equivalent of Port Forwarding command in Mac Os x Yosemite

ifconfig eth0:0 192.168.1.215 netmask 255.255.255.0 /sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE /sbin/iptables -A FORWARD -t filter -i eth0-m state --state ESTABLISHED,RELATED -j ACCEPT ...
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1answer
43 views

List all open sockets in /dev/tcp/localhost/

Is it possible to list all open sockets in /dev/tcp/localhost/ on a Linux machine? I want to list all sockets where the following command would return 0: timeout 2 bash -c "cat < /dev/null > ...
0
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1answer
155 views

Firewall status: “Allowed, Restricted” on a port

I'm trying to run something on my localhost through a port (8080) but I am getting a 404. It should be working properly but I'm not sure why. In my Resource Monitor, under Network -> Listening ...
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3answers
73 views

Checking open ports on a netgear router

I'm having troubles connecting to ftps via Filezilla. They told me it could be router ports. Some say 21 port (exit traffic?) is always open, some say it's closed. How do I check if it's open? If it's ...
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1answer
102 views

Amazon-EC2 ports not opened despite Security Groups and iptables configuration

I just rented an Amazon EC2 server, made to host a node.js app which listen to client on port 9001. I did configure the Security Groups and added inbound and outbound rules on this port. There is no ...
0
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1answer
17 views

change audio output ports from mic to front

Lately my front audio jack has died. The microphone jacks still works seamlessly and I would like to remap the front speakers output to the microphone if it is possible. I use Ubuntu and I have Aspire ...
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0answers
20 views

port forwarding and hiding your IP [duplicate]

can i hide my public iP address by using the port forwarding ?
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0answers
41 views

Finding ports that are not showing up as available

Disclaimer: I have looked at the other threads on "Find processes using a port" This is in reference to a question on stackoverflow ...
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1answer
40 views

change port no on which tomcat is installed in ubuntu using SSH

I am accessing an Ubuntu instance through SSH, I installed tomcat7 on it. By default installed on port 8080. I need to install on port 9090, is there a way to change the port? Or how to install tomcat ...
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2answers
399 views

Testing a Firewall against outgoing UDP ports

I'm trying to test which outgoing ports are allowed through a firewall. At the moment I can do this for TCP by port scanning portquiz.net (which is a server with all TCP ports open) from inside ...
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0answers
35 views

UPnP Port Forwarding doesn't appear to forward my telnet port

I used upnpc to set up some forwarding rules for HTTP and TELNET (I'm aware of the security risk, it's a test): upnpc -a 192.168.0.30 23 23 TCP upnpc -a 192.168.0.30 80 80 TCP Everything looks OK ...
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2answers
308 views

Linux command get unused port

I'm looking for a command or script which returns an unused port on my ubuntu linux system. I have look on internet and the only thing I find is about the used/Listen port with the nestat command. ...
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0answers
20 views

Opening Gre port

Hi I've constructed VPN server.(My server is windows server 2012 datacenter.) But it error keeps on going when I try to connect from windows 8 and android. It says GRE protocol needs to be opened. ...
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0answers
42 views

Opening port 80 in router and Tor network doesn't work

I closed port 80 in my router . now when I type "192.168.1.1" to browser, I can't access the page of router settings to change settings and open port 80. Also 443 , 8088 ports open and 8080 has been ...
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2answers
44 views

Blocking ports without any firewall?

I want to close ports on my windows computer without using any firewall or similar software? Also i only want to open them when i use an explicit command. I didnt tried anything because i have no idea ...
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0answers
18 views

What is the client's “open to LAN” port range for Minecraft? [duplicate]

Does anyone know what the port range for Minecraft LAN is? it appears to be a random port every time, but there must be some guideline (i.e. min - max). As far as I can tell min is ~5000 and max is ...
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0answers
28 views

Check if ports are open for talking

I have a software (HP BSM) installed in a Windows server 2008 R2 Std This software needs to "talk" through a specific list of TCP ports and "listen" through other TCP ports. How can I know/check if ...