0
votes
1answer
10 views

Xampp error, port 80 in use with PID 4 in virtualbox

I noticed there is a lot of information about port 80 errors with xampp, however, there is not much information about this error on virtualbox. On my main computer, xampp works perfect. On my ...
0
votes
1answer
43 views

Reinstalled Windows 7 - Now cannot connect to any activation server or Microsoft Exchange

I reinstalled Windows 7 this morning, and now I am unable to connect to any activation servers for any Adobe software, and I cannot connect to Office 365 Microsoft Exchange server in Outlook 2013. ...
0
votes
0answers
10 views

Windows Server 2008 IP porting

We have a Dell server running Windows Server 2008. This server has two NIC cards. One NIC is connected to a private network and the second is on a public. We need the ability to route the public IP ...
0
votes
0answers
49 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
36 views

Opening a port on CentOS server not working externally?

I am trying to to setup a Ghost blog instance on port 80 of my CentOS 6 virtual server. There are no pre-installed web servers occupying port 80. If I run Ghost in production mode as a background ...
0
votes
1answer
30 views

Test connection to a port without actually connecting to it

I have a python socket server (single-threaded, accepts only one connection) running somewhere. I connect to that port and do my things. How can I detect whether port is open or closed without ...
0
votes
0answers
16 views

Bad Results from Port Check Sites

I'm not a network expert, though I know how to set up a static IP and forward ports. I've always wondered how port checking sites like http://ping.eu/port-chk/ work, because whenever I try them on ...
0
votes
0answers
53 views

UDP port binding to loopback interface

I've been trying to play a video game in multiplayer, but after trying a lot of time, I begun to realize there was some problem with my loopback interface (Windows 7) I have UPnP activated in my ...
1
vote
0answers
37 views

Can't connect to a game over remote LAN

First of all I want to say that I'm not entirely sure if this question can be asked here. If it can't, then please tell me and I will delete it. There's this game called Killing Floor, which can be ...
2
votes
1answer
69 views

Use of ephemeral port for server

In general ephemeral ports are used by clients when establishing connection with the server. For example: Server listens on port 80 A client (browser, FTP client, bittorent client) send a request ...
0
votes
1answer
109 views

How to find what's listening on specific port in Win7?

I'd like to find out what's blocking port 80 on my system. I've found the answer here but... as the result I get "couldn't not determine owner" (or something like that - I use Polish version so exact ...
0
votes
1answer
20 views

Port forwarding with two routers?

Can someone walk me through port forwarding with two routers, I will post screenshots as needed. I've tried many tutorials online and I can't seem to get it to work.
1
vote
4answers
106 views

How do I forward a port accessible to the world on my Mac?

I realize that there's a lot of info out there about port forwarding, but here's my specific situation. I need to use Remote in (via VNC) to my Mac. By default, the Mac Remote Sharing server listens ...
0
votes
0answers
31 views

Problems with opening ports and running listen servers in Red Orchestra (Router keeps restarting)

I'm no stranger to having to open ports, doing it a couple of times on a couple of different routers, and have done it on this router a few times. I'd opened up ports to play Terraria through TShock, ...
0
votes
1answer
43 views

How can I check for externally-open ports on a given server?

I need to programatically determine whether a given port on the server that my script is running on is open from the outside world. I'm working under the assumption that the only reliable way to ...
0
votes
0answers
44 views

What ephemeral ports do Steam & Valve games use?

I need to know exactly which ports are ephemeral so that I can create QoS rules. This page doesn't state which are ephemeral. I know that some of those ports such as 28960 are static ephemeral ports. ...
0
votes
3answers
1k views

How to bypass port blocking for p2p network? [closed]

I noticed that my school is now blocking all the ports to prevent p2p network such as torrent downloading. Of course it is against school's policy to bypass it. However I am curious if there is method ...
-2
votes
1answer
69 views

Use Router (External) IP Address for Dadicated Server [closed]

Currently i am in India. i have Broad Band Connection. I have TP-link router and i want to use router's external ip address for my dedicated server. Is it possible.? I am java developer not much on ...
4
votes
3answers
919 views

How to force a process transmit over UDP instead of TCP?

I 'm running an ffserver process on a Linux machine, in order to achieve video streaming via ffmpeg. However, there is a delay on video streaming. On ffserver configuration file I define Port 8090. ...
0
votes
2answers
139 views

Ran “network restart”, netstat shows no open ports, server still says port is in use

I am doing some web development in django (python). The program runs it's own development server on port 8000. I turned off the server and now need to restart it, but I'm getting an "Error: That port ...
2
votes
4answers
2k views

Should I run my small website in port 80, 8080, or 81?

I am running a small website using nginx. Since there's (probably) not going to be a lot of traffic in my server's lifespan and to avoid random DoS attacks, I am considering setting the web server to ...
-1
votes
3answers
27 views

Is it possible to take away tcp port which is already listened by another program

Is it possible that some program B can take away port which is already in use (listened) by program A. Should the program A (server whitch is listening some port) actually check the port status after ...
0
votes
0answers
52 views

Port forwarding : open port without any response

I've been playing around with my router recently to be able to access my localhost (ran by xampp) from outside. I've managed to open ports 80 and 443 and I've confirmed it with ...
1
vote
3answers
105 views

Quick way to scan for opened ports on local network according to a list

How can I quickly find out whether port 80 is open/listening on a server via a bash script? Normally on all workstations the daemon is running, but sometimes it fails. I use the following command to ...
0
votes
4answers
636 views

Warning: remote port forwarding failed for listen port 'xxxx'

How do I find the process that is listening on port 'xxxx' and kill it? I have RemoteForward 2022 remote.host:22 in my .ssh/config file. Whenever I ssh into a remote server: ssh staging-environment ...
0
votes
0answers
55 views

Send traffic over specified connections by port

I am currently at a college with an extremely restrictive network. No outbound ports are open except 53, 80, and 443. I can't do any of the things I'd like to do like FTP, SSH, etc., which is ...
0
votes
1answer
50 views

How can one verify the port configuration of a firewall?

I am a contractor on a project and have provided a port configuration requirement to the Server Hosting service provider for my project. How can I verify that the ports are configured and "open" for ...
2
votes
3answers
163 views

Is the same port acting as both client and server?

i find something strange in this netstat output. the output is taken using netstat -a -n -o -p TCP command on win 7. Proto Local Address Foreign Address State PID TCP ...
0
votes
1answer
888 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
2answers
62 views

Per executable UDP port redirection possible?

I have a black box program which listens on a particular UDP port. I'd like it to listen to a UDP port of my choosing. Is there a way to trick the executable into listening on a differen port. I ...
0
votes
1answer
589 views

Centos 6 server does not open ports

So after some battling and struggling with the firewall, i see that I may be doing something or the firewall isnt responding correctly there is has a port filter that is blocking certain ports. Okay, ...
5
votes
3answers
996 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
0answers
29 views

WAN Access Issues on LAMP Server

I am running a LAMP server and having trouble connecting over the internet. I confirmed everything is working fine locally. All other PC's on my network can access the server over the LAN. The ...
1
vote
3answers
93 views

Is there a way to permanently change the associations of NIC cards on a supermicro server?

There are 4 ports, eth0...eth3, and I want to reassign them so that eth0 is associated with the NIC currently listed as eth2, and eth1 to eth3. Basically swap them. It needs to be permanent and ...
1
vote
1answer
61 views

What problems I'll get if I will fix the network port my application is listening? [closed]

I observe this behviour from very famous projects. For example apache and nginx, they both by default trying to listen port 80 and if it's already occupied then they just fail to start and need to be ...
17
votes
5answers
43k views

Test if a port on a remote system is reachable (without telnet)

In the old days, we used telnet to see if a port on a remote host was open: telnet hostname port would attempt to connect to any port on any host and give you access to the raw TCP stream. These ...
2
votes
1answer
327 views

SVN UPDATE fails because system runs out of sockets

I am setting up a terminal server for a small group of developers. They will all be using the SVN client to access the central SVN repository. Every project in our SVN repository contains lots of ...
0
votes
1answer
27 views

Mapping someip:port to a someip/suburl

I would like it so that when my router gets a request for http://192.168.0.33/plex it basically returns http://192.168.0.33:32400 I'm wondering if this is possible and if some routers do it. ...
1
vote
0answers
1k views

vnc via ssh tunnel: channel 3: open failed: connect failed: No route to host

I was used to connect from A to a system B through vnc with ssh tunnel via C. I do the following: In B I start the vncserver: vncserver and let's say I get the :12 In A I open the ssh tunnel: ...
0
votes
2answers
3k 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
vote
3answers
1k views

Open TCP port in Windows 7 and read incoming data, what program to use?

I have an external device which can connect over GPRS to the Internet using a SIM card and I want to see what data it sends. I can program it to use my computer as a server and then use a program to ...
6
votes
1answer
5k views

Are there good alternative HTTP ports rather than port 80?

I have been looking for some documentation on alternatives to port forwarding to port 80. I have a dedicated Linux machine on a home router, and apparently utilizing port 80 is not an option. Are ...
0
votes
1answer
605 views

Ports 1935 and 843 are getting blocked for no reason

I have Windows 7, and my computer has been blocking ports 1935 and 843 for no reason for a while now. If for example, I try to watch twitch, nothing will work because those two are getting blocked. ...
7
votes
2answers
5k 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
votes
0answers
125 views

Send data from file to local UDP port

I've got an application, A, that listens on a user-defined UDP port for a specific message that normally comes from another application, B. Application B has a tool that allows recording these ...
1
vote
2answers
2k views

How to access NodeJS server on LAN?

I'm not the most knowledgeable guy ever with networking, but here goes... I've created an application with NodeJS and I'd like to test the application on my LAN with my family. The application ...
0
votes
2answers
704 views

scp tranfer can't be done bothways. lost connection

I'm trying to transfer a file via ssh but it works only from PC1 to PC2 but it doesn't work backwards. My recievers firewall is disabled I've checked my ssh_config files and both are the same. ...
0
votes
1answer
755 views

netstat shows open port with pid for process that doesn't exist?

We have a program that listens on a port to receive info on running a report. Upon closing and reopening the program, we get an error saying that the port it uses is already in use. Looking at ...
2
votes
3answers
3k views

Minecraft servers - 1 external IP, 2 servers, 2 ports - avoid specifying port in game - SRV record

I have two minecraft servers, on sub-domains. www.server1.example.com and www.server2.example.com. server1 is port 25565, server2 is port 25566. When users want to connect to a non-default port in ...
3
votes
3answers
1k views

Workaround for apartment complex internet when can't port forward

My situation is very specific, but I don't think it is uncommon. I'm not very hopeful about the situation, but since I don't know networking that well there can be something I just can't see. I live ...