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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19 views

Why won't apache bind to port 80 on Windows 10 upgrade

I just upgraded to windows 10 and now Apache won't start complaining that port 80 is in use. NetStat -a -b says that is can't figure out what process is using port 80 How do I find out and kill ...
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1answer
33 views

I accidentally opened a localhost port?

I had accidentally opened a port via firewall which had a WEBSITE(IIS EXPRESS) localhost port number. So could my desktop be hacked by opening a port? And also i had deleted it after a few minutes.
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1answer
8 views

How do I configure a TenGig2/1 as Gig Uplink on a Cisco 4900M ( Module: ws-x4908-10g-rj45 )?

Scenario: We were swapping out Module 2 on a Cisco 4900M from a 20-Port Gig to a 8-Port TenGig, a ws-x4908-10g-rj45 be precise. The hot swap went fine and TenGig2/1-8 sho ip int bri showed us the ...
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2answers
70 views

How can I tell if ISP is blocking outgoing ports?

1st: How can I tell if ISP is blocking ports? 2nd: How can I tell if problem is related to OS? Problem began since upgrade to Windows 10. (Business computer, hence I don't know if I have ...
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114 views

Port 80 already in use after Windows 10 upgrade

I upgraded from Windows 7 to Windows 10 yesterday. I tried to launch EasyPHP and Apache didn't start because the port 80 is already used by System. I know that I can change the port used by Apache, ...
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1answer
23 views

How to permanently set port for localhost

Every couple weeks, the enterprise security software takes my localhost port for its scanning stuff, so I try to run an app I am developing in visual studio, and the IIS Express tells me the port is ...
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1answer
83 views

How to free a port on OS X when lsof(1) reports that it is not in use

I am a developer working in OS X on Eclipse. A bug I have been working to fix in a web application results in some very strange behavior when resetting an instance of Tomcat, resulting in the ...
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0answers
10 views

Trouble configuring 2 IPs in single NIC and configure firewalld

I hope this is the place to ask. I just moved my server from Centos 6 to Centos 7. I read that Centos 7 is now using firewalld instead of iptables. Now my problem is I have only one card and I need ...
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1answer
48 views

telnet port 23 connection failed window 7

I'm using windows 7 and I'm trying to connect to my router with telnet: open cmd type telnet xxx.xxx.xxx.xxx. Result is could not open connection to the host, on port 23:connection failed. What ...
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2answers
61 views

Scanning my public IP address with Nmap finds TCP port 1720 open, is this a security concern?

When scanning my public ip address with Nmap I found out that I have open port on 1720/TCP. According Nmap service on it is H.323/Q.931. Researching uses of this port also brings up Microsoft ...
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2answers
36 views

iptables on CentOS 6.6

I'm trying to open a port on CentOS, but it doesn't seem to work: port 16 seems to be closed and 4075 seems to be open, even though according to iptables it should be visa versa. Chain INPUT (policy ...
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1answer
16 views

SVC Host service not visible in Svchost viewer

Some port required by my application was put in TIME_WAIT status by svchost which I found by running netstat. I used this application called Svchost Viewer to track the PID corresponding to the ...
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1answer
36 views

How Can I Make Two (Or More) Usb Ports Act LIke One? [closed]

From what I understand, usb 3.0 storage devices have a higher data transfer rate (though it also depends on other factors), and that they're backwards-compatible with usb 2.0. However, when used in a ...
1
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1answer
19 views

DDoSing ports, do numbers matter?

I know people typically DDoS port 80, but let's say I DDoS any port besides 80, would surpassing the given port speed of any specified port still cripple someones network? Say I want to DDoS port 45, ...
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0answers
40 views

Why are all these email ports listening on a new Windows 8.1 install?

I recently did a fresh install of Windows on a formatted disk, upgrading from Windows 7 Pro to 8.1 Pro. Now I have installed a few things already, including: Embarcadero RAD Studio XE8 Microsoft ...
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1answer
25 views

How do I change Synology DSM 5.0 http port via SSH?

I need to change port for HTTP from 5000 to 7777 on my Synology NAS via SSH. Is this possible?
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0answers
19 views

Stop a reverse ssh tunneled port from listening on remote machine

I have a few devices that may get serviced through a server. Since the devices connect through a GPRS network with inbound connections blocked I make them check with the server every few minutes. The ...
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0answers
34 views

Tcp connection target machine actively refused

I have a simple TCP client/server program on two laptops. The server should work fine as I use "netstat -anb" and the server shows up as listening, "0.0.0.0:102", then my client connection failed, ...
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2answers
37 views

Port forwarding error on new router

I've recently gotten a new router to handle a 1GB internet connection (yes, 1GB) because my old router shouldn't be able to handle such a massive connection. But with it came a whole new lay-out and ...
0
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1answer
68 views

Can't Change SSH Daemon's Port Number under CentOS 7

I've upgraded my VPS to CentOS 7 from CentOS 6. Back when I was running CentOS 6, simply changing the port number of the SSH daemon under /etc/ssh/sshd_config used to make my remote SSH connection ...
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0answers
21 views

create tunnel in order to access https via port 443

I have Windows machine that connected to Linux server 192.9.100.10 And Linux server has connectivity to the IBM blade center management GUI - 192.9.100.200 From my Windows machine I do not have ...
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0answers
9 views

Preserve port information on redirect response ngnix

I have a service say service1 behind nginx with following configuration upstream service1 {     sticky path=/service1 expires=31536000;     server ...
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0answers
15 views

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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1answer
52 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
70 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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28 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
39 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
33 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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2answers
37 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
36 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. ...
0
votes
1answer
25 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
57 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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43 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 ...
0
votes
1answer
78 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
126 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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0answers
28 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
54 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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84 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
60 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 ...
0
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0answers
25 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 ...
0
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0answers
24 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
21 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
57 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
votes
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 ...
0
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2answers
72 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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0answers
126 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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0answers
177 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 ...
9
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5answers
781 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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0answers
227 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, ...
1
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1answer
70 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 ...