I am running Debian 6 stable and I am trying to run Django locally using ./manage.py runserver command. This is what I get:
Validating models...
0 errors found
Django version 1.4.1, using settings 'genelaytics.settings'
Development server is running at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Error: That IP address can't be assigned-to.
I tried creating a new django project, still get the same error. What's the problem? I just fresh re-installed Debian yesterday because of this problem. This problem hasn't gone away. How can I fix it?
That's not related to Django but to your network configuraton. The very basic loopback interface is not working properly. If you want to learn more about networking and this layer.
Your problem is that your host cannot ping to itself, and so Django gets an error when getting the network address. That's in django/core/management/commands/runserver.py and is returned when it gets the system error 99 (EADDRNOTAVAIL).
Your network configuration at /etc/network/interfaces should have this piece at the beginning:
# The loopback network interface
auto lo
iface lo inet loopback
Check Debian documentation for full network configuration.
You are missing two lines of code in network configuration file. Edit the file as a root user with any text editor:
sudo gedit /etc/network/interfaces
Add these two lines:
auto lo
iface lo inet loopback
Restart the network using the following command:
sudo /etc/init.d/networking restart
Now, the localserver will work fine.
Related
I have a django project in my pc.
In terminal I've run python3 manage.py runserver <my ipaddress>:8001
When I try to open the link in another pc, it is showing error page which says:
Invalid HTTP_HOST header: '<my ipaddress>:8001'. You may need to add '<my ipaddress>' to ALLOWED_HOSTS.
What should I do?
And moreover is it possible to put some text in place of ipaddress in the url?
For example, I want to host it as myproject/ instead of that complex url.
On one condition this will work
if both computers are on the same network like local Hotspot or same
LAN network
steps:
add '*' in your django projects's setting file in Allowed Host it will look like
ALLOWED_HOSTS = ['*']
run your server on this ip 0.0.0.0 and port any like 8000 using this command
manage.py runserver 0.0.0.0:8000
run ifconfig if you are using linux ipconfig if windows then you will get your ip address of your server
Open browser in another computer and enter the ip of server shown in 3rd step with port as 8000
http://ip-of-server:8000
Instead of passing <my-ip-address> to the runserver command, pass 0.0.0.0.
If both the machines are in the same network you can run the application on 0.0.0.0 IP address (refers to all IPv4 addresses on the local machine). Refer this link wiki 0.0.0.0 for more details. So, on application server run this:
manage.py runserver 0.0.0.0:8001
Now, from the other machines, access it using http://youripaddresss:8001 , where < youripaddress > is the actual ip address of your machine.
If both computers are not on the same network (local hotspot or LAN network)
You can use ngrok to view whatever is running on your localhost from any device
Using ngrok to view your django project from any device
follow the steps below:
Add '*' in your django projects's setting file in Allowed Hosts:
ALLOWED_HOSTS = ['*']
Download ngrok from the official website
Unzip the downloaded file and then go to the directory where the ngrok file is located via your terminal
Then type the command:
ngrok http 8000
or
./ngrok http 8000
Now you can open the url generated by ngrok on any device to view what is running on your pc:
https://randomly_generated_subdomain.ngrok.io
PS: this can also be used for any webserver running locally, not just django site
ngrok is a great tool that can be used to:
Run personal cloud services from your home
Demo websites without deploying
Build webhook consumers on your dev machine
Test mobile apps connected to your locally running backend
Stable addresses for your connected devices that are deployed in the field
Run your server with this command python manage.py runserver 0.0.0.0:8000
Then you can access your website from any system connected to your wifi with an URL like 192.168.0.1:8000
You may get your IP Address using this command in CMD ipconfig in windows and ifconfig in mac
Also add your IP to ALLOWED_HOSTS in setting.py
ALLOWED_HOST = ['*'] in your settings.py
python manage.py runserver 0.0.0.0:8000
then make sure your machine firewall allows incoming and outgoing traffic.
I use linux machine so from control center go to firewall and allow both incoming and outgoing.
then on your local network machine.
:8000
This is it !
worked for me
This is probably a very basic question. I SSH to my virtual Ubuntu server and start a django webserver running on localhost:
Downloading/unpacking django
Downloading Django-1.9.5-py2.py3-none-any.whl (6.6MB): 6.6MB downloaded
Installing collected packages: django
Successfully installed django
Cleaning up...
Performing system checks...
System check identified no issues (0 silenced).
You have unapplied migrations; your app may not work properly until they are applied.
Run 'python manage.py migrate' to apply them.
April 13, 2016 - 14:16:19
Django version 1.9.5, using settings 'mysite.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
The Ubuntu server has a static IP [x.xxx.xxx.xxx] so from another machine on another network I try to access the above website in a browser using that static IP address:
x.xxx.xxx.xxx:8000
But I get:
This site can’t be reached
x.xxx.xxx.xxx refused to connect.
ERR_CONNECTION_REFUSED
So I assume that I cannot access the website like this and that is only available on the host it self even though the host has an external/static IP address?
Edit:
The answer is also in:
https://docs.djangoproject.com/en/1.9/intro/tutorial01/#the-development-server
python manage.py runserver 0.0.0.0:8000
You need to run your web server on 0.0.0.0:8000, then externally you would use either ip or host name to access. Using 0.0.0.0 means the django service would listen to all configured network interfaces.
Check wikipedia on details about 0.0.0.0.
Another answer on serverfault could be helpful.
I created one EC2 instance for Django project with Ubuntu server.
I installed all required package of django, python etc successfully.
But when I am trying through ssh with private ip : python manage.py runserver xxx.xx.xx.xx:8983 its running, but when I am trying to load it through browser its gives as error : "The Connecion has timed out"
I have assigned VPC security group to this instance.
Also, I try with public IP address through SSH: : python manage.py runserver XXX.XX.XX.XX:8983
It gave error as follows :
Validating models...
0 errors found
July 15, 2015 - 22:34:10
Django version 1.6.7, using settings 'conf.settings.local'
Starting development server at http://xx.xx.xxx.xx:8983/
Quit the server with CONTROL-C.
Error: That IP address can't be assigned-to.
And same error occurred when I run in browser.
I also tried following both options but no luck
0:8000
0.0.0.0:8000 port running successfully in ssh with python manage.py but not in browser.
I checked /etc/network/interfaces this file, following lines already exists there:
auto lo
iface lo inet loopback
Anybody has any other solution?
Daya,
I try run with port 0:8000 0.0.0.0:8000 but no use.
Also, /etc/network/interfaces file was perfect.
But In my case, solution for this problem was to change script file's location.
I mean to say my django application folder location was /home/ubuntu
but when I move it to /Var/www it worked.It worked because server is apache2.
I'm guessing there's a very simple solution to this, but I searched every forum and setup guide and can't figure it out:
I built a Django/CentOS-6.3 environment on my local server (using VirtualBox and Vagrant). When I startup my server in the vagrant terminal with 'python manage.py runserver [::]:8000' it starts up with no errors.
Validating models...
0 errors found
May 31, 2013 - 13:56:15
Django version 1.5.1, using settings 'mysitename.settings'
Development server is running at http://[::]:8000/
Quit the server with CONTROL-C.
However, when I try to navigate to 'http://127.0.0.1:8001' in my browser (I set up port forwarding from port 8000 to port 8001 in my Vagrantfile), the browser just hangs for 5 minutes until it times out, then it returns the message:
> The connection was reset
> The connection to the server was reset while the page was loading.
> ...
This is the exact same message I get from the browser even after I shut down my local server. My computer obviously recognizes this as a forwarded port, because any other port I try (such as 8000) instantly returns an error saying that it can't establish a connection to the server at 127.0.0.1:8000.
With regard to the server files, I have done many similar setups with Django/Ubuntu in the past and have never had any issues, but there must be something different about Django/CentOS that is causing this to happen (or maybe I made a mistake someone in one of my server files). I have followed guides for setting up Django & PostgreSQL on CentOS, too, but to no avail. I'll comment some of the files I have created/edited below.
If anyone has a solution, or even has advice on where to start looking for errors, I would very much appreciate it.
If your network is configured correctly and your django application with
python manage.py runserver 0.0.0.0:8000
and you still can't access your django app from the VM host there is almost certainly a firewall issue. The solution above is good if you are running iptables.
I deployed CentOS 7 on a virtualbox VM from a Windows 7 host. I didn't know that this distribution uses firewalld, not iptables to control access.
if
ps -ae | grep firewall
returns something like
602 ? 00:00:00 firewalld
your system is running firewalld, not iptables. They do not run together.
To correct you VM so you can access your django site from the host use the commands:
firewall-cmd --zone=public --add-port=8000/tcp --permanent
firewall-cmd --reload
Many thanks to pablo v for pointing this out in the post "Access django server on virtual Machine".
the host's "127.0.0.1" is not the same as the guest's "127.0.0.1". Per default the command
python manage.py runserver
listens only to the guest's localhost. You should be able to test it from within the vm (use "vagrant ssh" to login) and run
curl -I http://127.0.0.1:8000/
The host as a different IP. To access the development server from the host you have to start it without ip restriction:
python manage.py runserver 0.0.0.0:8000
Yes:
python manage.py runserver [::]:8000
should be the same. But that's IPv6 syntax AFAIK. Are you sure that the "manage.py runserver" command supports IPv6 by default? I've never used ipv6 addresses w/ django, but looking at the source (https://github.com/django/django/blob/master/django/core/management/commands/runserver.py) there seams to be a flag that the default to False ("--ipv6"). Perhaps that's the "real" problem?
Regards,
For a similar problem,
This command worked like a charm for me
python manage.py runserver [::]:8001
Check your iptables, and stop it. Ubuntu commonly does not open the iptables when it starts.
I know I have similar question with this post: Django tutorial on remote server: how to view in my browser? But I just can't solve it with the answer it has.
I am playing with Django framework now. I am trying to do the Django tutorial on my Linode server. Everything works fine, but when we have to examine the webpage we have, the tutorial says that we have to check http://127.0.0.1:8000/ on the server. I only have command line access on the Linode server, so I don't know how to see that webpage on the linode from my desktop. I tried to use the command like python manage.py runserver 123.123.123.123:8000 and set the ip to my Linode server, but I still can't access that webpage from my desktop (I do remove the firewall for 8000 port). Does anyone know how can I check the change for the remote webpage I created within Django framework on the Linode server? Thanks.
Just to make sure, are you trying to access the following URL in your browser (where the server ip address is 123.123.123.123)?
http://123.123.123.123:8000
Secondly, are you able to telnet to port 8000, to make sure you have correctly opened the port on the firewall.
I had this problem too and I wanted to clarify what I did for others who might get stuck:
First, remove the firewall for port 8000
sudo nano /etc/iptables.firewall.rules
-A INPUT -p tcp --dport 8000 -j ACCEPT
Second, reboot the linode
Third, restart the development server
cd /home/mycode/mysite
python manage.py runserver 123.123.123.123:8000
(where you use your ip)