Questions tagged [port]
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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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 ...
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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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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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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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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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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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If nmap reports a port is open, does that ALSO mean a service is listening on the port?
I have a Thompson TG585v7 router/firewall whose firewall is configured to FORWARD several ports to a computer X54 within the LAN.
These ports are in the range 1024 through to 2500
That X54 ...
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How to diagnose unconnectable port from client side?
I have a machine that can't connect to a certain port number on a server. I've disabled all firewalls and security software. It can connect just fine to 80 and 443, but not 7777.
Is there a tool or ...
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Configuring Bittorrent
I have used Bittorrent without problems for the past year.
Then a couple of weeks ago I changed my internet provider (now I have Fastweb.. I live in Italy)
It is much faster, but Bittorent does not ...
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open port with ip-adress
i want to get access to my server from network.
netstat -an | grep LISTEN
tcp 0 0 127.0.1.1:53 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:631 0....
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Some program occupy port 80. What is it?
I am trying to run netstat and this is what I got
Proto Local Address Foreign Address State
TCP 127.0.0.1:5550 TOSHIBA-PC:49319 ESTABLISHED
TCP 127.0.0.1:...
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Change HTTP/S ports in OS X Server?
I am setting up OS X Server on a local computer (for managing a few devices.) I contacted my ISP to allow me to set up port forwarding, and they said that incoming ports 80 and 443 are disabled. Which ...
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How can I open ports on my Linksys RV082 router?
I bought a Linksys RV082 small business router. It's a nice 8-port wired router with a lot of configuration options, and so far it's working pretty well.
One of my computers on the LAN is a server ...
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What is the difference between these two ways of telneting
I'm trying to check to see if a port is open on something. If I
telnet licensemanager.domain.edu 25734
then I get a black screen waiting for input (blinking cursor)
but if I telnet and then o ...
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WAMP change phpmyadmin Port
I found a couple topics on how to do this here, but none of them seemed to work as WAMP has changed the structure of the files in mention.
Here is my config for phpmyadmin. I'd like it to run on a ...
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Connecting to Apache server over SSL when it's behind NAT and the public IP & port are known?
I want to connect to an Apache server over SSL (with both client & server certificates) when both the client and server are behind NAT firewalls. I can't port-forward and I have to assume that all ...
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Secure FTP Port between Filezilla and Godaddy
I recently upgraded to Filezilla 3.0.x
I am getting "filezilla error: Failed to retrieve directory listing godaddy" errors from Filezilla which i believe is because of a blocked port on my firewall
...
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How much would it cost to replace HDMI port if it can be done separately [closed]
After the lightning struck my house, my PC doesn't recognize TV as a output, while TV recognizes HDMI input. Exhausting a lot of options here http://redd.it/2ribe7, I want to know would the whole ...
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Why is Port 135 So Overused
I'm studying Windows Server Port numbers at http://support.microsoft.com/kb/832017, and I notice that so many services use Port 135
What was the logic in setting this standard? Is this because one ...
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Firewall and Torrent
I use my university internet network and all incoming connection is blocked on every port.(they use netasq firewall) They have no other restrictions which stops me from using a torrent client. Using ...
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NMAP sees open ports, but netstat doesn't show listeners on them
I just scanned my PC remotely with zenmap, and see a number of open ports not related to any services I'm providing.
Redacted list of ports:
PORT STATE SERVICE
32/tcp filtered unknown
406/...
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Why URL that reach specific port in front got https?
Some web hosting control panel must use URL https://example.com:3500 to reach it. If I do not type https, browser will not reach it.
HTTPS is port 443. Is it port 3500 or port 443?
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Why URL with port number other than 80 gets HTTP traffic?
An example of URL that links to a web hosting control panel:
http://example.com:3500
HTTP is port 80. Why does the URL use port 3500? Is it port 3500 or port 80?
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java.net.BindException on app crashing and port already in use
I just ran a jar on a ubuntu server using a default port. The jar was stopped using ctrl+z. On restarting the port was already engaged and OS has not released the port for use.
I want to use the port ...
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Cannot curl webserver from outside network
I have a webserver running on one of my home computers. I am able to access it within my network, on another computer, with curl localWebserverIP:8888. However, I am having issues accessing it from ...
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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 ...
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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 ...
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port forwarding in ZTE F620
it have been for 3 days to make a port forwarding in my ZTE router and still there is no product. I want to open 80 port for one of my computer (which local adress is 192.168.1.11). ill give you ...
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Nodejs remote debugging ports closed
I have a problem with nodejs remote debugging. I'm using centos on remote server and phpstorm on my PC. When I open putty I type the command:
node --debug-brk=5858 main_server.js,
and get the output:...
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Send emails over port 80 using Linux command line
I have a server that is not allowed to send outgoing emails or have access to any name servers.
What it has is an http proxy that allows it to access the other servers and I am able to do wget ...
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How to view the calling script on Linux [closed]
I am trying to write a script to help with computer security. I am trying to look for open ports, find the PID, and find what called it.
I have it working, where my output looks something like this:
...
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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 ...
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Cannot listen/use any port on my windows
I have windows 7,
and my PC cannot use any port, i tried apache2, and it says it cannot bind to port 80, i changed to many different port, 8080, 81, 82 ....
i tried mysql, same thing happened, it ...
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Adapter to VGA, minidisplay or HDMI?
I have a computer with HDMI and mini-display ports, and a monitor with only VGA input, should I get the adapter for the HDMI or the mini-display port?
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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 ...
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Access USB device from virtual machine (Windows 7 pro) while having host Linux (Debian 7)
I am a bit at loss to find where the problem could be. I have a computer running Debian Wheezy. I want to run a microcontroller debugger from within a virtual machine (VMPlayer 6.03). I am using a USB ...
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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 {P-...
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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 ...
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Port 4567 open on router to 'tram' traffic...Should I worry?
When I do a port scan on my router (nmap 192.168.0.1) the result is:
PORT STATE SERVICE
22/tcp open ssh
23/tcp open telnet
53/tcp open domain
80/tcp open http
443/tcp open https
...
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Port remains blocked after opening
I have a TP-Link WR841ND Router. To test a server, I've had to open port 69.
When the router is connected to my internet at home, and I do the router's routine of opening a port (I know how, have ...
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Does NAT forwards ping requests and port scans to all subnet computers?
If I ping some friend's public IP address, this is usually the address of his router.
Does the router forward the ping request to all devices on it's network?
If the devices are all turned off will ...
user248853
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Which criteria is used by the linux kernel to pick udp source ports?
They are all of course greater than 1024, but can we narrow this range a bit more?
Via wireshark the lowest I've seen is 30XXX. Does the kernel specify it's criteria somewhere?
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Is forwarding to port 9 (discard) essentially the same as blocking a port?
My router (Linksys WRT1900ac) seems to leave port 4567 open, as discussed in this question. I'd like to block that port.
Unfortunately I see no easy way in the Linksys admin console to simply drop ...
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If my DSL modem leaves a port open, how vulnerable is my router?
Port scans of my old Netgear router showed that port 4567 was open. I assumed my router was to blame. Now port scans of my new Linksys router show the same open port, which makes me think my DSL modem ...
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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 ...
user376921
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Why my iptables configuration for port-knocking does not work?
I implemented the following iptables rules on my test server for a course.
The firewall shuts down and I cannot access port 22. However, after
knocking on the ports 1111, 2222 and 3333 in that order - ...
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Determining what port is associated with a network interface
I have a computer with 4 ethernet ports in the back. How can I tell what network interface (eth0, eth1, ...) is associated with each port?
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Iptables to forward HTTPS traffic to remote HTTPS proxy
My goal is to use Iptables to take all traffic going to my server on port 443 and forward it to a remote HTTPS proxy server.
So basically if I was to use my ip of 192.168.1.142:443 as a SSL proxy it ...
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What can the second LAN port be used for on a NAS?
I've got a NAS with 2 ethernet ports. I have one connected to the router. I read that the second could be connected to double the speed of data to and from the NAS. I don't need to do that, as the ...
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range of ssh tunnel port
I use ssh tunneling with : ssh -i <my_file> -R *:0:localhost:80 <my_name>@<host>.
With the port = 0, the server assign me a port. How does the server choose and how can I config the ...
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