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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179 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 ...
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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 ...
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1answer
139 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 ...
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2answers
5k views

Detect what outgoing ports are bypassed by firewall

My school has a firewall which limits most outgoing ports. There're only TCP/80, TCP/443, TCP/21 allowed. Is there's a way to find out all the outgoing port allowed by the firewall? My current idea: ...
1
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1answer
158 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 ...
3
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1answer
7k 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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0answers
458 views

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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6answers
286 views

What is this port on my computer?

What is the name of the port shown in the picture? This port is on my old NEC Versa LitePad Tablet PC http://www.superwarehouse.com/NEC_Versa_LitePad_Tablet_PC/VL-PAD-933/p/243017 ...
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3answers
6k views

How to discover if a specific address/port is reachable?

I need a simple utility that allow me to check if a PC, attached to a local network, is able to reach a specified address:port using specified protocol like TCP or UDP Machine's OS I will use to do ...
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0answers
22 views

Reverse port forward using windows

I've got a VPS (vps.mindfulhacker.tk) and I'm running a game server on my windows machine. IF my machine was running linux / mac, I could use the following command to make my game server accessible ...
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0answers
86 views

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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0answers
51 views

DVR is visible LAN but invisible with WLAN

I'm trying to get a DVR (H.264 video surveillance system) a connection. Here should include ports 80, 34567 and 34599 open. I also have a forwarding address and the DVR is forwarded in my router so ...
2
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1answer
131 views

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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0answers
38 views

Maximum concurrent sessions to a web server

As far as I understand connecting to a web server, as a new session is established from a client to the web server, they form a socket with a receiving and sending port for each machine. As the ...
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7answers
14k 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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0answers
123 views

Netgear wnr2000v3 Router accepts Telnet connection but sends no data

A port scan of my Netgear wnr2000v3 Home Router reveals that TCP port 23 is open and running telnet as a service. When i try to connect to the router using Telnet (Windows built in client) the cursor ...
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1answer
143 views

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 ...
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1answer
17 views

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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1answer
143 views

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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1answer
70 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
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1answer
74 views

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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2answers
832 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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2answers
118 views

SSH Connection refused wrong port

I want to connect to remote server through Ubuntu shell. I am using ssh root@serverIP in Ubuntu shell but I receive this msg: connect to host xxx.xxx.xx.xx port 22: Connection refused This IP is on ...
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7answers
46k views

Apache Server on Windows 7 opening up ports?

I have installed Apache 2.2.14 on Windows 7 and can view my web pages using both http://localhost and http://127.0.0.1 but when I try to access the server from another computer on the same router, it ...
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3answers
4k views

Remote desktop solution which works with port 80

The corporate firewall where I work won't allow any programs to access any ports other than 80. This is a real bummer because when I try to remote in to external machines, using either LogMeIn.com or ...
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2answers
47 views

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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0answers
59 views

Error assigning wpa.conf to port using wpa_supplicant?

I am very new to this sort of linux work and openwrt so any help would be good. So far I have a TL-WDR3600 router which is running open-wrt (openwrt-ar71xx-generic-tl-wdr3600-v1-squashfs-factory). ...
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1answer
639 views

Win 2k3 Connections Limit per ip:port

I want to limit connections number per ip on specific port. Should I use some firewall or anything else? Advice please. P.S. Port doesn't have to be port 80, or 3389. It can be any port
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0answers
28 views

port fowarding and start port end port where to put numbers

sony gave me this set of numbers tcp ports 10050,10051, 10040-10060 and on my set up looks like this external internal protocol start port end port ...
0
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1answer
154 views

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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2answers
2k views

How to remove IIS for WampSERVER?

I have WampServer installed, and I installed Microsoft SEO Toolkit, I guess that has the IIS dependency. And I guess the iis service uses port 80. Now every time I start WampServer, I need to go to ...
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0answers
44 views

installing trac on windows server 2012 with iis web server on port 80

I have a iis web server listening on port 80. I am installing trac via bitnamp and during the installation process it is asking me what port the bundled apache web server should listen on. the default ...
6
votes
1answer
751 views

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 ...
0
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2answers
1k views

Stop Or Uninstall IIS for running Wamp Server (Apache) on default port (:80)

I'm runing an Apache server on Windows 7 using the WampServer application. I need to test some Asp.net Mvc applications so I active the IIS on windows... After that, the old Apache server that I had ...
1
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2answers
198 views

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 ...
2
votes
2answers
427 views

Can't use port 8080 - what is running on it? (OS X Mavericks)

I'm trying to run Tomcat on port 8080 using cargo, but it gives the message: org.codehaus.cargo.container.ContainerException: Port number 8080 (defined with the property cargo.servlet.port) is in ...
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1answer
262 views

what can filter a port on Fedora 19 besides router, firewall and selinux?

I am trying to use seafile which seems very nice. Unfortunately I have an issue that I fail to explain. From my two fedora 19 machines, nmap says port 12001 is filtered on the distant (say private) ...
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1answer
378 views

NodeJS and Apache on port 80 using different IP addresses - Apache needs port 80 clear even though it's configured to use port 80 of a different IP

I'm using a node.js app on port 80 of 127.0.0.2:80 server.listen(80, '127.0.0.2', function() {... And I want to use Apache on port 80 of another ip address, say 127.0.0.3:80, so I have this in my ...
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0answers
13 views

redirect MS SQL through Ubuntu

I'm trying to redirect a Microsoft SQL connection from local LAN to VPN via Ubuntu The Ubuntu has connection to both networks I want to be able to connect SQL from my PC to the Ubuntu and it redirects ...
12
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1answer
817 views

Determining what process has bound a port (without listening) on Windows

If I want to find out what process is listening on what socket, I can use netstat/TCPview and will immediately see it. However, it is possible to bind to an address without listening. If this is done, ...
0
votes
1answer
31 views

Is there any way to access many services from the same port?

To clarify: I am running apache on port 80 of course. I am also running DynMap on the same server. Is there any way to make it so that I can access it through port 80, or do i simply have to open the ...
7
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3answers
9k views

Figure out non standard ssh port

I have this server that is configured to use another port instead of 22 for ssh. How may I figure out which port number it is?
4
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1answer
5k views

Why is “nc -l xxxx” not opening a port?

I'm trying to get netcat to listen on port 4444, but it doesn't seem to be working. I am checking to see if the port is open using nmap, but it doesn't pick it up and I can't figure out why. I have ...
1
vote
1answer
70 views

UDP port scanning

UDP is connectionless, so I can't expect a response packet, necessarily. If the port is closed, I might get an ICMP error message, but if the firewall could silently drop the ICMP packet How could I ...
0
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0answers
38 views

Opening a firewall port on virtualized Windows 7 running on Mac OS X 10.9

I am currently using a virtual machine running Windows 7 (32-bit) which is hosted by the VirtualBox application from Oracle; this latter is installed on a MacBook with the last up-to-date version of ...
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1answer
102 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
89 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
71 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

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 ...
4
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2answers
5k 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?