Self hosted and ping problems on local network - server

The problem is i have an self hosted server (Obico its an thing for 3d printing) and i can use my local ip on the host PC so it reach correctly the page but from another PC or device i cant reach the page (i disabled AV and firewall for testings). I can still ping form host to client but not client to host.
Any solutions ?
Thank you.

Related

Reverse OpenVPN connection

I am close to getting this to work but need some assistance.
I have OpenVPN Access server running on a Droplet in Digital ocean.
I have a RaspberryPi with a wireless connection on my network.
IP = 192.168.20.205
The user the pi connects to the Access server is set to be a VPN gateway with :
Allow Access From: all server-side private subnets
Allow Access From: all other VPN clients
192.168.20.0/24.
I have another user that connects to the Access server without the gateway settings.
When both users connect I can see them both in the web GUI of the access server with an IP assigned. 172.27.232.XXX
Now from the remote user I can ping the Pis 172.xxx.xxx.xxx IP address and even SSH into it using the 172 address.
However, it seems like the Pi isn't bridging / routing correctly or getting stopped by a firewall, as from the remote user I cant see the local network 192.168.20.xxx.
any pointers for me here?
Thanks!
The solution to your problem is clearly explained here:
https://openvpn.net/vpn-server-resources/site-to-site-routing-explained-in-detail/
You have to set the static routes on both routers and set the ip forward on the raspberry pi

Cannot browse a local easyphp web server using the local IP address

I am running easyphp with apache version 2.4.18 x86 (32-bit) on Windows 10.
On the PC where easyphp is running, I can connect using either localhost or http://computername, but if I try to connect through the local IP address which is http://192.168.0.10, I get a white page without any error message.
And the most strange thing, if I plug an iPhone (USB) with a shared connexion in the PC (the PC gets 2 network connections), then I can access to http://192.168.0.10 through the PC (still the wifi IP local address and not the iPhone local network address).
If I unplug the iPhone, then it fails again to connect to http://192.168.0.10.
Any explanation ?
So it was a firewall problem.
Evene when desactivating the firewall, the web site was not reachable.
I've added manually the
EasyPHP16\eds-binaries\httpserver\apache2418vc11x86x160927105506\bin\eds-httpserver.exe
in the Windows firewall rules, and it worked.
The two strange things is that disabling the firewall did not arrange anything, and lanching the webserver did not pop up the firewall dialog.
Hope this helps.

Open the localhost website from a server pc

This might be an easy question, but I am not familiar with these stuff.
Basically I have a server pc that I connect through my pc, and there is this webpage http://localhost:8080/. I can only access this address when I log in my server pc. Now I wanted to know how I can access this webpage in my pc (without having to remotely connect to my server pc). Any help will be appreciated.
you can access to your website (if your web server accept external requests) by type this code to your browser address bar from your pc:
<server ip>:8080
replace
<server ip>
with your server ip like this:
192.168.1.10:8080
Okay, so quick networking 101, localhost is a hostname that maps to the IP address of of 127.0.0.1 and these point to the local machine, i.e. your server.
In order to access that page within the same network, you'll need an external IP address. So say you're in the network of 192.168.1.0/24 and the server is on IP address 192.168.1.100. So in order to access your stuff from another machine, simply replace localhost with that IP and it should work. If not, you've got firewall issues, and those are another topic.

Connect an Android Device To a Web Service on Local Host

I implemented a web service for an Android application. The web service is running on my local host (192.168.1.2). Using the Android emulator I succeeded to connect to web service. The I tried to connect my Android device using debugging mode to web service but it didn't work. So my question is if it is possible to connect an Android device to this web service that is running on my local host (192.168.1.2) without using a real IP ?
It's much simpler way supported by google!
Connect your phone via usb to computer and enable usb debugging
On your computer open Chrome browser and type exactly this address: chrome://inspect/#devices
Now you can link your computer port to your device port by port forwarding button. On my computer I have service on address localhost:61437 and I just linked it to device's 8081 port. Remeber to check 'Enable port forwarding' checkbox
screen from service on my computer ( localhost:61437 )
screen from my mobile browser with the same service ( localhost:8081). And that's it. Also you use this service address in your application
Did you already solve your problem? I also got a problem like you. These are the steps that I already done:
unplug lan cable or turn off any other internet connection from your pc.
connect your android mobile to your pc using usb.
turn on usb tethering
back to your pc. check your ip. mine is 192.168.42.37
check your webservice app in your pc. let's say http://192.168.42.37/webserviceapp
back to your android mobile. try this url http://192.168.42.37/webserviceapp
Now you can access your webservice app in your pc from your mobile phone.
Well your localhost is 127.0.0.1 (or ::1) and your LAN IP is 192.168.1.2. Each pc/device that are connected under your LAN could reach your webservice on IP 192.168.1.2
Your Android device must be so connected under the same LAN maybe through Wifi connection so it will be able to talk with 192.168.1.2.
If you can't connect your Android device under the same LAN eg you have just a 3g connection you need to play with your router/firewall to redirect all incoming traffic (maybe just the http traffic) from your public ip to you private ip (192.168.1.2)
Hope this help
I'll throw in my process, since nothing on SO worked for me. Here are the steps I took to connect my physical android device to the web service running on my laptop (connected to the phone) on localhost:
Enable USB debugging on your Android device
Run your web service on your machine. My web service runs on localhost, port 3000 in development: http://localhost:3000/api/...
Run ifconfig (Unix), or ipconfig (Windows)
Find your machine's inet address on your LAN interface. Mine is 10.0.0.121 for interface wlan0. Externally, it is 68.43.XX.XXX, which is not the address that you want to use.
Use the LAN IP since you are connecting to your service on LAN, otherwise you might get an econnrefused (connection refused) error due to firewall rules
Build your http URL with that IP address, and the port that your web service is running on. For me, it's http://10.0.0.121:3000/api/...
When you launch your app, you should connections to your local web service in logs, Wireshark, etc, and you should see the desired activity/data in your Android application.
I had the same issues, researched a lot then found out that you have to explicitly make changes in your firewall settings. Your firewall is blocking your code to be accessed from external source. So, all you need to do is, go to firewall settings, add port 80 (in my case since, I am using Apache http Server) for inbound and outbound. Now, you can test it on your phone's browser http://192.16..**:80/
I've done that on a Mac using GasMask and Charles Proxy Server. Your phone and your computer have to be on the same network.
say the webservice url you want to access is at http://api.xyz.com, you first use GasMask to point that url to your localhost, then use Charles to set up a proxy server. Then you go to the settings on your phone, go into Wi-Fi, long-press the network you are connected to, choose Modify Network, and enter the proxy settings Charles gave you.
In my case, nothing of these solutions works because Windows firewall blocks it, but putting a rule on the firewall hasn't effect.
The problem in my case is that my laptop is connected with Wifi and Windows had the Wifi connection like a Public network. I must to change the network connection to Private network. http://www.comofuncionatodo.net/tecnologia/informatica/como-cambiar-de-red-publica-a-red-privada-en-windows-10/
I agree with the other answers as good approaches if you don't want to expose your DEV webservice on the internet. However, it's much easier if you do just expose the webservice. There's a number of free DNS services, but I've found no-ip to be the easiest to set up. I use it for exactly the purpose that you asked about; so I can test with my DEV webservice on a real device.
If you choose to go with no-ip (I have no affiliation with that company, it's just the one I've used and am familiar with), you can get a free publicly accessible URL like http://MyExampleWebServer.no-ip-org, and no-ip has a utility you can install so even if you're behind a dynamic IP, it will always keep the correct external IP associated with that URL. If you're working from your house, then you'd just need to make sure you port forward traffic from port 80 to your internal 192.x.x.x IP address (or whatever port you use; maybe 443 for ssl).
It's as easy as that, and now you can hit that webservice from any device that can access the internet.
I haven't worked with it, but I believe dyndns also offers a similar service.
This solution is for GAE development server in Eclipse
Step 1: Get the LAN IP
Goto your Windows Command Console (Press Win+R, then type "cmd"). In the console, enter "ipconfig". You will see a list of display. Under Wireless LAN adapter Wi-Fi, get the IPv4 Address. It will be something 192.168.x.x
LAN IP : 192.168.x.x
Step 2:
Go to Eclipse, Open the Configured server
Under Properties of GAE Development Server -> Local Interface address to bind to, enter the LAN IP address, and save.
Step 3:
Now you can access the GAE server by
http://192.168.x.x:8888/
8888 - Refers to the Port Number, as mentioned in the GAE development server
In order to access local web services using their own server hosts rather than IP addresses with ports, do these following steps:
Make sure your Android device and your local machine are on the same network.
Install SquidMan on your Mac, Linux, or any other Proxy Server.
Configure the proxy server's HTTPPort (ex. 5555) and clients (ex. 192.168.0.0/24) to your own network mask, and run the proxy server.
You are either using the web services in:
a. A web browser: Configure the proxy settings of your Android device from Modify WiFi networks.
b. Android application:
Set up the Proxy for your HTTP client. If you are using Volley, check this out: Volley Behind a Proxy server.
You can now connect to it by using whatever URL you are using on your host to connect to the web service (ex. http://my-local-machine.com)
Hint: If you got 4xx response codes, make sure your web service allows connections from other non-local-hosts.
If you are referring your localhost on your system from the Android emulator then you have to use
http://10.0.2.2:8080/
Because Android emulator runs inside a Virtual Machine(QEMU) therefore here 127.0.0.1 or localhost will be emulator's own loopback address.

Mobile App Connecting to my local web server

Looking for assistance on why I can access my local web server when I'm on my wireless network but not from my mobile phone (when not connected to wifi). I have tried using dyndns, wan ip, regular ip address but I can't see to grasp what I should be doing. I have my MAMP server running and php on 8888 for which the appropriate php file runs successfully when I'm logged into my network. I'm just trying to access this now from the public domain and I'm not sure what i need to do.
Any help would be greatly appreciated!!
Thanks,
Dan
You need to get your router to forward the external requests to the correct internal computer & port.
I.e. any external requests to port 8888 should be forwarded to your computer's IP address on port 8888. Most routers will have this option in the admin panel somewhere.
[EDIT]
This website might be able to help - http://portforward.com/english/routers/port_forwarding/routerindex.htm