I'm creating a python flask api on remote desktop and running it on localhost of remote desktop.
Is there anyway I can access this api from my local machine?
We are working in a team and I want to share this with my team members, but this is confidential and not to be deployed on open server.
We want to post and get the result with every member's local machine from api runnnig on remote desktop.
Both of our local machines and remote desktop are windows10.
Sorry for being abstract but I'm searching for any way out. Thanks.
Well, you should open your way to this API. You'll have to set up a VPN or IP address filter in the server so you can access the server from your network while still have it secured on the Internet. You can also setup a simpler proxy if you prefer it. I'll not cover the details on how to setup a VPN or proxy since it can get pretty extensive, but a Google search will help you out find the best alternative for you.
AFAIK, the Remote Desktop Protocol does not allow for any kind of VPN. However, if you can switch to TeamViewer, it does have an easy to setup VPN system that will allow you to get into the network with few configuration. Once a VPN is configured, it will work like if you were in the same network as the server, so from there you can access your API from your host machine by just going to the IP address of the server.
Do notice the security policies of whoever owns the server, since you can get into trouble if you don't have permission to enable some access from the outside. Security goes always in front of comfort.
Short term solution:
Firstly download ngrok for your operating system.
For debugging and testing purposes you can expose a secure tunnel connection to your API by running this command in your command prompt / terminal.
ngrok http <PORT_NUMBER>-host-header="localhost:<PORT_NUMBER>"
Where PORT_NUMBER is the port number in which your flask application is running.
Example if your flask application is running at port 5000 then simply execute this command:
ngrok http 5000 -host-header="localhost:5000"
Running this will give you two hostnames one with HTTP and other a secure HTTPS connected by a tunnel like this for a duration of 8 hours after which the command needs to again re-run.
Which you can call remotely
Long term solution:
Deploy flask application using FastCGI
or
To a cloud infrastructure provider like Microsoft Azure which gives readymade templates for flask applications.
Related
How can I connect the Azure Cache for Redis to the Flask WebApp that uses celery to perform some asynchronous tasks? Whenever I try to connect via Webjob, it would say unable to connect to redis.
I also tried enter this celery inspect ping -b redis://{password}#{redis_service_name}.redis.cache.windows.net:6379/0 from this post How to configure celery-redis in django project on microsoft azure? but i would get Connection Failure: If this issue persists, ensure your computer's firewall and proxy settings allow outbound TCP traffic to port 10225. Using the firewall feature on your cache may also block connections from the console if your IP address has not been whitelisted
If there is no special rule in the firewall, this error should not occur. In general, there are special firewall settings in company networks, so access problems can occur. In this case, you need to allow the firewall to port 10225 outbound.
You can test it on a different network using Redis console on Azure to see if it's firewall-related.
using company network with firewall rule
other network without firewall rule
Try switching your network to work temporarily. This is a network specific issue and the port used to connect to Redis server is blocked and needs to be opened.
I have created a web application in python using the Flask framework. I have hosted this python application in IIS on windows server2012.
when I called this application with URL https://localhost/ on the server machine, I am getting a quick response(less than a second). But when I tried to call the same application from another machine inside the corporate network, it is taking more than 2mins time to get the response. I am calling the web application through the IP address of the server machine i.e XX.XXX.XX.XXX:80.
could anyone answer why is it taking too much time and how to get rid of this latency time?
I have used below resources to create the web application and opening the inbound port.
python deployment:
https://medium.com/#bilalbayasut/deploying-python-web-app-flask-in-windows-server-iis-using-fastcgi-6c1873ae0ad8
Inbound port opening:
https://manage.accuwebhosting.com/knowledgebase/2886/How-to-configure-IIS-to-access-website-using-IP-address.html
Regards,
Naresh.
My problem has been solved, i have tried with host name instead of IP address. It is so fast.
Regards,
Naresh.
I've just started learning network developing using Flask. According to its official tutorial:
Externally Visible Server
If you run the server you will notice that the server is only
accessible from your own computer, not from any other in the network.
This is the default because in debugging mode a user of the
application can execute arbitrary Python code on your computer.
If you have the debugger disabled or trust the users on your network,
you can make the server publicly available simply by adding
--host=0.0.0.0 to the command line:
flask run --host=0.0.0.0
This tells your operating system to listen on all public IPs.
However, when I try to access 0.0.0.0:5000 on another device, I got an error: ERR_CONNECTION_REFUSE. In fact, I think this behavior is reasonable, since people all around world can use 0.0.0.0:5000 for different testing purposes, but isn't the tutorial implying that adding --host=0.0.0.0 can make my webpage "accessible not only from your own computer, but also from any other in the network"?
So, my question is:
What does adding --host=0.0.0.0 do?
How can I access my webpage on device B while the server is running on device A?
You don't access the Flask server on another computer by going to 0.0.0.0:5000. Instead, you need to put in the IP address of the computer that it is running on.
For example, if you are developing on a computer that has IP address 10.10.0.1, you can run the server like so:
flask run --host=0.0.0.0 --port=5000
This will start the server (on 10.10.0.1:5000) and listen for any connections from anywhere. Now your other device (say, on 10.10.0.2) can access that server by going to http://10.10.0.1:5000 in the browser.
If you don't have the host=0.0.0.0, the server on 10.10.0.1 will only listen for connections from itself (localhost). By adding that parameter, you are telling it to listen from connections external to itself.
If I run my flask app on my local machine I get proper results by connecting to http://127.0.0.1:5000/report?id=1
But now I want to make it externally visible by deploying my flask in a VM in azure. I have opened the port 80 on my VM. And I'm running the flask app using this:
if __name__ == '__main__':
app.run(host='0.0.0.0')
I'm still not able to connect to my flask server using this (assume the public IP address of my VM is x.x.x.x):
http://x.x.x.x:5000/report?id=1
Any suggestions how should I go ahead with it?
Edit: I'm able to psping my VM's public IP address on port 80.
The problem isn't related to Flask, since you opened up your application to listen on any public IP (0.0.0.0).
Moreover you should do a proper port mapping in your azure configuration. Google said, you might have a look here: https://azure.microsoft.com/en-us/documentation/articles/virtual-machines-set-up-endpoints/
EDIT
Another idea, where some colleages often run into, is that you may have skype open which somewhat uses port 80/443 and therefore is blocking it. Shutdown skype if you do so or use a different port for your webapp.
So here's the deal with Azure:
If you open a port from the Azure portal, the firewall in your VM STILL blocks that port. You have to manually go in and create a firewall setting in your VM to keep the port 5000 open for your flask server. Once that is done, you should be able to connect to it.
I'm trying to test and distribute my python application in script or executable form (client). I already have my openshift server setup and running. I'm confused on setting up port forwarding with other users to test it out with.
Do other clients (publicly) need to download rhc and run 'rhc port-forward appname' on their own machine or are there alternatives out there which can be accomplished using python internally by code?
This is kind of confusing and any help would be much appreciated.
Thanks.
all the 'rhc port-forward appname' does is set up SSH tunnels behind the scenes. If you want people to tunnel into your appication you will need to get their public SSH key into your application as an approved key. Then you can set up an SSH tunnel whatever way you chose.