The mailing list for listmasters using Sympa

[Rafal Szkup <address@concealed>]

Or http2 module is enabled and the redirect doesn't work as it shows
HTTP1.1 due to like you said the host header is not matching which is
required for HTTP2 and HTTP3 technologies/protocols/modules.



On 29/07/21 3:29 pm, O, Victor wrote:
> I think at some point Sympa started requiring a host header be passed
> in the request that matched whatever domain is listed in your sympa
> config (/etc/sympa/sympa.conf)
>
> I’m not sure which version but I believe it was something within the
> past year or so. A page with a mismatch host header returns a blank
> page with that 421 http response. This is from my own personal
> experience anyhow. 
>
> -victor
>
>
> ------------------------------------------------------------------------
> *From:* address@concealed
> <address@concealed> on behalf of William F. Dudley
> Jr. <address@concealed>
> *Sent:* Wednesday, July 28, 2021 10:24:27 PM
> *To:* address@concealed <address@concealed>
> *Subject:* [sympa-users] How to debug web interface failure?
>  
> Sympa users,
>
> I installed sympa a year ago with the intention of migrating from
> mailman 2.  I never finished the project, but now I'm forced to abandon
> mailman 2, so I must finish this.
>
> Machine is running FreeBSD 11.4-RELEASE-p9 i386.
> Apache24-2.4.48 (FreeBSD package revision of Apache 2.4)
> mysql57-server-5.7.34 (which sympa seems happy with)
> sympa-6.2.62 (latest FreeBSD package)
>
> I had everything working -- web interface and the ability to send emails
> that passed gmail's DMARC tests.
>
> Now, however, I find the web interace returns an entirely empty page.
> Nothing at all.  I can still send emails to my "test" list, so Sympa
> is still "working" as a mailing list.
>
> The web access_log file shows this:
> 98.109.205.15
> <https://protect-au.mimecast.com/s/RtYICANpL9HlwAKOcGn-RF?domain=98.109.205.15>
> - - [28/Jul/2021:22:45:18 -0400] "GET / HTTP/1.1" 421 1
> 98.109.205.15
> <https://protect-au.mimecast.com/s/RtYICANpL9HlwAKOcGn-RF?domain=98.109.205.15>
> - - [28/Jul/2021:22:45:28 -0400] "GET / HTTP/1.1" 421 1
>
> There are TWO lines for every attempted access.
>
> All attempts to access the web interface return a blank page and show
> a 421 code in the log file.
>
> (Yes, that's my own IP).
>
> The error_log file has no new entries at all.
>
> How do I debug why the web interface is broken?  It worked, I ignored it
> for a year, and now it's broken.  There have been no changes to the
> machine
> other than regular security updates from freebsd.org.
>
> Thanks,
> Bill Dudley
> New Jersey, USA
>
> >> This message is from an external sender. Learn more about why this <<
> >> matters at https://links.utexas.edu/rtyclf
> <https://protect-au.mimecast.com/s/n4sgCBNqMRHRw5XKs6JBjj?domain=links.utexas.edu>.
>                        
> <<
>
-- 
Rafal Szkup | IT Technical Lead  | Senior DevOps Engineer | The University of 
Auckland
              m: +64 27 801 2436 | Somewhere in NZ

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature