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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1answer
400 views

USB hub assigning random com ports when Windows 7 PC or USB Hub are rebooted

I have four hardware devices that are plugged in through a self powered USB hub. Currently the devices are assigned COM1 COM2 COM3 COM4 through device manager as hoped. However, when rebooting the ...
0
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0answers
2 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 ...
4
votes
4answers
13k views

Windows 7 is blocking ports

I am trying to open port 80 and 3690 for HTTP and svnserve respectively (inbound for both). I have Windows Firewall off, and have tried temporarily disabling Mcafee VirusScan Enterprise, to no avail. ...
0
votes
0answers
10 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 ...
0
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2answers
7k 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 ...
3
votes
1answer
4k views

What is the difference between Port and Connector?

I want to know the difference between Port and Connector in Computer (the physical ones),and how can i tell that this thing is a port or connector ? I know that both terms are used for the same ...
0
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0answers
12 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 ...
0
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2answers
38 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 ...
0
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1answer
13 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 ...
7
votes
4answers
31k views

USB Ports Not Working

None of the USB ports work anymore on my HP EliteBook 2540p laptop which is running Windows 7 Pro SP1. By "not working," I mean if I try plugging in a thumbdrive or external HDD it does nothing ...
2
votes
0answers
34 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 ...
0
votes
1answer
3k 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 ...
0
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0answers
44 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 ...
8
votes
5answers
728 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 ...
1
vote
1answer
34 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 ...
0
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0answers
48 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, ...
2
votes
3answers
3k views

iptables firewall only allows internet traffic if source port of 80 is allowed

I am configuring an iptables firewall, currently just to allow http and https traffic. It is working but under a particularly strange rule - I must allow incoming connections with a source port of ...
0
votes
2answers
27 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 ...
0
votes
1answer
3k 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
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
0answers
88 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: ...
0
votes
0answers
869 views

Port forwarding on a Huawei EchoLife HG8245

The problem is port forwarding in my EchoLife HG8245 router. I am able to port forward, and I know it works. But after some time I've came with the conclusion that my router only accepts 1 connection ...
0
votes
1answer
29 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 ...
39
votes
9answers
122k views

Manually closing a port from commandline

I want to close an open port which is in listening mode between my client and server application. Is there any manual command line option in Linux to close a port ?? NOTE: I came to know that "only ...
0
votes
0answers
40 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 ...
10
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5answers
3k views

What is ::: in the Local Address of netstat output?

This is the output of netstat -tulpn that I get: tcp 0 0 127.0.0.1:2208 0.0.0.0:* LISTEN 2055/hpiod tcp 0 0 127.0.0.1:631 ...
0
votes
1answer
31 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
votes
1answer
82 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 ...
2
votes
4answers
2k views

Which Powershell Function could check whether a certain port is in LISTENING state on localhost?

Introduction Aim: to check whether a port is in LISTENING state on localhost by using a PowerShell function The following command: New-Object Net.Sockets.TcpClient.Connect("127.0.0.1",10389) ...
0
votes
3answers
51 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 ...
1
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2answers
1k views

What ports/protocols are used by Windows' “Computer Management”?

I usually connect to other Windows computers on my network using My Computer > [right click] > Manage and then Computer management > [right click] > Connect to another computer. I would like to know ...
1
vote
1answer
64 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
votes
1answer
13 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 ...
0
votes
0answers
19 views

port forwarding and hiding your IP [duplicate]

can i hide my public iP address by using the port forwarding ?
0
votes
0answers
4k views

Simple way to open Port for Transmission for a Mac Snow Leopard

I am a complete noob when it comes to TCP/IP, but would like to open up my port for the Transmission bit torrent client on Snow Leopard Mac. Also, I am based in the UK if that has any relevance.
1
vote
1answer
336 views

Nmap shows 554 and 7070 open on EVERY machine even when they are closed/filtered

Every single machine I scan shows port 7070 and port 554 as open regardless if the ports are closed/filtered. It will still show those two ports as open even if the target is offline (and the scan is ...
11
votes
2answers
11k views

No idea what is listening on port 80 in OS X

I'm on OSX Mountain Lion 10.8.3, and I've freshly rebooted my Mac. I want to start a service (like Apache on port 80), but there is already something going on with port 80: telnet localhost 80 ...
0
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0answers
27 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 ...
0
votes
1answer
27 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 ...
7
votes
4answers
18k views

What is binding this port?

Something is serving content on my port 80, but I don't know what process is doing this. Is there any way to find out what process is bound to which port(s)? Update: This is the output of netstat... ...
0
votes
2answers
184 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 ...
11
votes
3answers
6k views

Netgear router listening on port 32764?

I've got a Netgear DG834G running firmware V5.01.01. From the LAN side, if I port scan it, it's listening on tcp port 32764. Trying to telnet into this port gives me the response ...
0
votes
0answers
26 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 ...
0
votes
2answers
168 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. ...
0
votes
1answer
998 views

Port Forwarding for RDP

I'm trying to setup Remote Desktop on my computer. It's currently running Windows 7. RDP is set to allow for incoming connections. I've followed the instructions at PortForward.com, but am having no ...
0
votes
0answers
37 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 ...
0
votes
0answers
16 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. ...
0
votes
0answers
17 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 ...
0
votes
2answers
30 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 ...
0
votes
0answers
28 views

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 ...