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I installed Ubuntu server 16.04 on one of my computer to setup a web server. I want to install Phabricator to manage a video game project with some friends. I'm trying to configure my router (Home Hub 1000 from Bell) to redirect port 80 to this server. The problem is that it doesn't work at all. I can access to my web page from a computer on my local network with the name of the computer, but not from the outside using my IP address (the one used by my router). I added my server to DMZ and I had set up a port forwarding (Protocol: Both, Internal port: 80, External port: 80). My server use a reserved IP address configured on my router.
Thanks for your help.
Besides of a reserved local ip-address, it is useful to have a static ip-address from your provider(because they might change your ip once and a while). You can find your ip on whatismyip.com
When both port forwarding and DMZ are configured in your router, you can look if there is firewall on your server which blocks the external requests.
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I currently have a setup where I got a raspberry pi connected WIRELESSLY to a router and a WIRED desktop connected to the raspberry pi (via Ethernet) and receiving internet from the pi. On the Desktop I want to run a Minecraft server on port 2000, however, I believe that because of my setup this port can only be seen by the PI alone and any not the router and anything else connected to the router. I currently have the PI ITSELF port-forwarded on the router for port 4300, I just need some way to link the pi's wireless connection of port 192.168.1.55:4300 to the shared Ethernet connection of port 192.168.220.78:2000.
I've looked into messing around with the IPTABLES in Rasbian Linux but I don't fully understand them.
My ultimate goal is to let this server be accessible to anyone outside of my home.
I found the problem, apparently, I needed to accept the incoming connections on the server's computer. So on the same computer as the minecraft server I ran: sudo iptables -A INPUT -p tcp --dport 2000 -j ACCEPT
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Why am I not able to see responses in Charles Proxy when debugging an app?
It is very strange, all certificates have been installed on my laptop and trusted, same for my devices, and I am still getting SSL Proxying not enabled for this host, even though I have the enable SSL box ticked.
I have never run into this issue before. What can I do?
Charles Proxy does not proxy any domain unless specified in the Proxy Settings. It's on the Charles Proxy Documentation:
You must specifically identify the host names you want to enable SSL Proxying on. The list is in the Proxy Settings, SSL tab. You can also right-click on a host name in the structure view and turn on or off SSL Proxying.
If you want all HTTPS traffic to be captured by Charles, then you can add *:* on that list:
If you're looking to only monitor few domains related to your app. A Simple solution would be, just right click on the domain name that you're trying to monitor and in the context menu shown, click Enable SSL Proxying, charles will take care of filling the url and port itself.
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Closed 8 years ago.
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I installed the Apache web server on my Windows 7 machine and I'm unable to start it because Skype.exe is already using HTTP port 80 and HTTPS port 443.
I need Apache and Skype to co-exist on the same machine. How do I configure Apache to use other ports, or prevent Skype from listening on these ports?
To turn off and disable Skype usage of and listening on port 80 and port 443, open the Skype window, then click on the Tools menu and select Options. Click on the Advanced tab, and go to the Connection sub-tab. Untick or uncheck the checkbox for Use port 80 and 443 as an alternative for additional incoming connections option. Click on the Save button and then restart Skype to make the change effective.
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Closed 9 years ago.
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So I was looking into what port dropbox uses on my computer and tried to see what would happen if i created a new http server on that port. Surprisingly it worked. So both dropbox and my http server were running on the same port, but the incoming requests were routed to the different application depending on the source address.
lsof -i tcp:51311
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
Dropbox 3811 user 18u IPv4 0xdedc291239eb197f 0t0 TCP 172.20.10.2:51311->108.160.163.34:http (ESTABLISHED)
node 3984 user 11u IPv4 0xdedc29123b1494cf 0t0 TCP *:51311 (LISTEN)
I am wondering how this works. I thought the os would refuse the bind my http server since the port was already alloted to dropbox but to my surprise it worked. Anyone thoughts?
TCP sockets match against the 4-tuple (source-ip, source-port, destination-ip, destination-port). As long as all four of them don't clash, you can have port reuse.
As long as your daemon doesn't receive a connection from 108.160.163.34:80 your stack can handle it. If the server 108.160.163.34 is well-behaved it won't let an application initiate a connection to your socket (172.20.10.2:51311) with 80 as source port. (bind() should fail with Address already in use).
If it isn't well behaved, the existing dropbox connection will receive an unexpected packet (wrong sequence number space) and your stack will RST it.
The HTTP port being used by Dropbox is at 108.160.263.34, not your local host.
Port 51311 is being used as one outbound port and one listening port. Not 'two services running on the same port'. Otherwise there would be two LISTENING lines.
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How may I create a socket on my computer that could be reachable from other computers via internet, and work like a web server, maybe using WebSockets?
By the way: could my web server become visible from the Internet and how?
I know I can install a LAMP web server on my computer (my OS is Ubuntu) and use it for a local network.
I know I can use sockets to let 2 computers communicate via internet using their IP addresses (I did it in Java).
You can make your LAMP server stack accessible from the internet by forwarding ports from your external internet connection to the computer the server stack is running on. If you're doing this at home, you can usually handle port forwarding from the admin interface for your router/modem.
Alternatively, WebRTC is a newer web technology (still in the testing phase) that allows two browsers to connect to each other without the need for an intermediate web server.
Browser does not permit raw sockets.
You can not create a socket from browser, because it would be security hole.
For example you download a page from internet and script on this page opened all sockets on your computer.
Websockets it is technology on top of TCP protocol.
Using Websockets you can connect two browsers to a Websocket server and exchange information via this server.