I have a flask app running on a remote WINDOWS server (this server has a fixed ip address) which is not on my local network. The flask app is used to return some json data. The app works fine when I try to access the data while being logged into the remote server through request module in Python. However, when I try to run the same script on my personal laptop (which is not on the same network as the remote windows server), I get an error. However, when I try to ping the remote server from windows command prompt, I get the answer back. Can somebody tell in which direction should I go? I have no experience with web / api development.
response = requests.get("http://127.0.0.1:5000/product/1)
But instead of the local ip address, if I substitute the remote ip address, I don't get anything back.
Ok, so the problem lied with the remote firewall, it was blocking incoming connections. The moment I switched off the firewall, everything started working.
Related
How can I make a remote desktop work on an external IP without an Azure app proxy?
I tried from the same server, the applications work and everything is fine, but when I try from an external IP, it does not work and gives me a web socket field in the console
I have a server written on C++ REST SDK.
There's http_listener which listens to "http://localhost:34568".
When I try to send a request in browser or from the client to localhost it works fine and I get the responses from my server. But the point is to use the application in network. And here where the problem comes.
When I try to request the server from the other PC using IP(192.168.1.103:34568) I get "HTTP Error 400. The request hostname is invalid."
I'm aware that that could be some firewall issues but it's turned off. Also I tried to set port rules in brandmauer and it didn't help.
And even more! I got XAMPP running Apache server and when I do the same thing but with (192.168.1.103:80) I do get the response from Apache and have an access.
Anybody had something similar or somebody knows what the problem is about?
Listen to local ip address or to your network name (dns):
"http://xxx.xxx.xxx.xxx:34568" or
"http://your_network_name:34568"
So, if you have multiple network adapters, you can choose which one.
I have main server which added to a lot of remote machines as trusted host. I have access to this server by RDP. But I want to use my local machine to connect to remote machines. I can add my machine to trusted host into every user, but it's not good solution, because:
I don't have a static IP
it's not secure
it's more difficult, than just use server as proxy
Can I use remote server machine as something like proxy in order to connect directly to endpoint host, without enter in server session?
Depends what you exactly want to achieve but you can also try use PowerShell web access.
I'm trying to debug a Drupal 7 app with Xdebug. My app resides remotely in a server with Ubuntu running Apache.
In Netabeans, I started a proyect with "Application From Remote Server", connected with SFTP.
In the remote server I have installed Xdebug as zend_extension, also i configured xdebug.remote_connect_back=1, xdebug.remote_autostart=1, etc... I've tried everything with no luck.
The log from Xdebug has entries like this one:
Log opened at 2014-12-24 13:01:31
I: Checking remote connect back address.
I: Remote address found, connecting to 181.175.73.24:9000
E: Time-out connecting to client. :-(
Log closed at 2014-12-24 13:01:32
Based on the log it seems that my computer is not visible from outside on port 9000. But port 9000 in my laptop is opened, listening, with Netbeans, that's what happens when a debug sessions starts.
I think it's a problem with my ISP. My IP is not only for me, so I can't manage it's ports or other configuration. I think my PC is not visible from outside.
So, the question is, how can I avoid this limitation? What could I debug my APP from my computer on a remote server?
Every answer is welcome. Using a program, using a service, both... I tried using pagekite but honestly I couldn't find a configuration that works for me.
Thanks everyone.
PD: I don't want Xdebug alternatives that don't do step by step debugging.
PD2: My Xdebug config is attached.
remote_connect_back won't do it for you, it just tries to connect to the public ip, it's nothing magic.
Can you ssh on the remote server ? You might want to try port forwarding over a reverse ssh tunnel.
Full details from the creator of xdebug:
http://derickrethans.nl/debugging-with-xdebug-and-firewalls.html
I am working on a server/client based project. I almost finished my server side code.
I develop the server app in EclipseCDT on Ubuntu Desktop, and everything just works fine.
But when deploy my app to a Ubuntu Server (I tried Server 10.04/10.10), the server app can start normally (waiting for connection), but the same client just cannot connect to the server.
I use Socket for receiving and sending data to/from the client.
Peter
P.S.: if I install sudo apt-get install ubuntu-desktop on my server machine, then everything works fine again.
===========================================================================
New Findings from the source code:
LabelStartBlocking:
int newScoketId = ::accept(socketId, 0, 0); // socketId == 3 ::accept is define in socket.h
// waiting for connection
LabelResume: // if new connection coming
// Do something with newSocketId
The behavior difference between Ubuntu Desktop and Server is:
On Ubuntu Desktop version, when the server starts, it is blocked at LabelStartBlocking with the socket routine ::accept; and then if a new connection arrives, the server will resume at LabelResume and create a new socket connection using the return value newSocketId;
However, on Ubuntu Server version, when the server starts, it is also blocked at LabelStartBlocking with the socket routine ::accept, but if a new connection arrives, the server won't resume at LabelResume, and the new socket connection CANNOT be created.
Can you guys help me out?
Peter
Thanks for your attention.
I finally figured it out.
If there are more than one IP addresses for the same hostname (/etc/hosts), the old code will fail.
Example /etc/hosts file:
127.0.0.1 localhost YourHostName
10.50.10.251 YourHostName
I traced the calling stack, and I found that, the IP address (10.50.10.251) passed to the program is translated into hostname, and then later the hostname is translated back to IP address (for binding), but a DIFFERENT one, that's why my server program cannot accept any client connection.
Hope it helps if any others have the similar issue.
Peter