On 2025-08-01 01:37, Mark Sapiro wrote:
raise self.model.DoesNotExist(
django.contrib.sites.models.Site.DoesNotExist: Site matching query
does not exist.
That error will occur when settings.py contains
SITE_ID = 0
and the host in the http request is not one of the hosts in the
django_site table in the database or in Sites in the Django admin web
UI.
Is that possibly the case here?
The SITE_ID and database table check okay. The SITE_ID is supposed to be
"0"? No?
SITE_ID
Test server - settings.py: SITE_ID = 0
Prod server - settings.py: SITE_ID = 0
HTTP_HOST
Test server DB - mailmanweb.django_site table: domain and name fields OK
Prod server DB - mailmanweb.django_site table: domain and name fields
OK
And the hosts are displayed in Sites in the admin UI.
I also checked the ALLOWED_HOSTS in the Test and Prod servers. Both
have:
...
"localhost",
"127.0.0.1",
"<IP4 ADDRESS OF HOST>",
"<MY.DOMAIN.COM>"
"<OTHER.DOMAINNAME.COM>",
...
Is there a complete traceback preceding the log snippet you report. If
so, what is it?
The traceback does suggest that the SITE does not exist...
======================= TRACEBACK =====================
Traceback (most recent call last):
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/contrib/sites/models.py",
line 39, in _get_site_by_request
SITE_CACHE[host] = self.get(domain__iexact=host)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/db/models/manager.py",
line 87, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/db/models/query.py",
line 637, in get
raise self.model.DoesNotExist(
django.contrib.sites.models.Site.DoesNotExist: Site matching query does
not exist.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/core/handlers/exception.py",
line 55, in inner
response = get_response(request)
^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/core/handlers/base.py",
line 197, in _get_response
response = wrapped_callback(request, *callback_args,
**callback_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/postorius/views/list.py",
line 1158, in list_index
return render(
^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/shortcuts.py",
line 24, in render
content = loader.render_to_string(template_name, context, request,
using=using)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/template/loader.py",
line 62, in render_to_string
return template.render(context, request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/template/backends/django.py",
line 61, in render
return self.template.render(context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/template/base.py",
line 173, in render
with context.bind_template(self):
File "/usr/lib/python3.11/contextlib.py", line 137, in __enter__
return next(self.gen)
^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/template/context.py",
line 254, in bind_template
updates.update(processor(self.request))
^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django_mailman3/context_processors.py",
line 32, in common
context["site_name"] = get_current_site(request).name
^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/contrib/sites/shortcuts.py",
line 16, in get_current_site
return Site.objects.get_current(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/contrib/sites/models.py",
line 61, in get_current
return self._get_site_by_request(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/contrib/sites/models.py",
line 45, in _get_site_by_request
SITE_CACHE[domain] = self.get(domain__iexact=domain)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/db/models/manager.py",
line 87, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.11/site-packages/django/db/models/query.py",
line 637, in get
raise self.model.DoesNotExist(
django.contrib.sites.models.Site.DoesNotExist: Site matching query does
not exist.
ERROR 2025-08-01 05:21:46,176 2030595 django.request Internal Server
Error: /owa/auth/logon.aspx
ERROR 2025-08-01 05:21:46,176 2030595 django.request Internal Server
Error: /owa/auth/logon.aspx
============= END TRACEBACK =================
... -- "whatever is proxying to Django setting the appropriate
HTTP_HOST header." -- which I don't understand.
This is in the configuration of the web server. It should be
configured to pass the host of the incoming request to the proxy
target in the HTTP_HOST header. In nginx this is `proxy_set_header
Host $host;`. In apache it is `ProxyPreserveHost On`, but again the
change to user_adapter shouldn't affect this.
That all looks good for both the Prod and Test servers.
...
location /static/ {
alias /opt/mailman/web/static/;
}
location / {
proxy_pass http://127.0.0.1:8000;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
}
...
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