This will make it so that the HSTS header is sent regardless of the request status code (until this point it would only be sent if "the response code equals 200, 201, 206, 301, 302, 303, 307, or 308." - according to thttp://nginx.org/en/docs/http/ngx_http_headers_module.html#add_header)
These subdomains/records are for automatic configuration of mail clients, but if there are no user accounts on a domain, there is no need to publish a DNS record, provision a TLS certificate, or create an nginx server config block.
When the management commands fail, they can print something to the standard error output.
The administrator would never notice, because it wouldn't be send to him with the usual emails.
Fixes#1763
* Create the mta_sts A/AAAA records even if there is no valid TLS certificate because we can't get a TLS certificate if we don't set up the domains.
* Make the policy id in the TXT record stable by using a hash of the policy file so that the DNS record doesn't change every day, which means no nightly notification and also it allows for longer caching by sending MTAs.
Folks didn't want certificates exposing all of the domains hosted by the server (although this can already be found on the internet).
Additionally, if one domain fails (usually because of a misconfiguration), it would be nice if not everything fails. So grouping them helps with that.
Fixes#690.
- The MIAB version check regularly fails at 03:00, presumably because a
large portion of installations is checking mailinabox.email at the same
time.
- At installation time, the time of the nightly clock is configured to
run at a random minute after 03:00, but before 04:00.
- Users might expect the nightly tasks to be over at a certain time and
run their own custom tasks afterwards. This could thus interfere with
custom backup routines.
- This breaks reproducibility of the installation process.
- Users might also be surprised by the nightly task time changing after
updating MIAB.
with this nginx will keep on proxying requests and serve static content
instead of passing this responsibility to proxied server
Without this the one needs to run an additional server to server static
content on the proxied url
The function apt_add_repository_to_unattended_upgrades is defined
but never called anywhere. It appears that automatic apt updates
are handled in system.sh where the file /etc/apt/apt.conf.d/02periodic
is created. The last call was removed in bbfa01f33a.
Co-authored-by: ddavis32 <dan@nthdegreesoftware.com>
Because Mailman reformats headers it breaks DKIM signatures. SPF also does
not apply in mailing lists. This together causes DMARC to fail and mark the
email as invalid. This fixes DKIM signatures for Mailman-based mailing lists
and makes sure DMARC test is passed.
