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[Beta][Bug] community.zimaspace.com unreachable (TCP 443 timeout) #504

@debian-alain

Description

@debian-alain

What happened?

community.zimaspace.com (50.16.36.123) is unreachable.

DNS resolves correctly but TCP connection to port 443 always times out.

Tests performed:

  • ping: no response (likely ICMP blocked)
  • curl: connection timeout
  • openssl s_client: no handshake
  • mtr: route reaches Cogent backbone then stops

Likely server-side issue (AWS instance / firewall / load balancer).

Location: France (Bouygues Telecom ISP)

Screenshots

alain@sid:~$ curl -v --connect-timeout 10 https://community.zimaspace.com
* Host community.zimaspace.com:443 was resolved.
* IPv6: (none)
* IPv4: 50.16.36.123
*   Trying 50.16.36.123:443...
* Connection timed out after 10002 milliseconds
* closing connection #0
curl: (28) Connection timed out after 10002 milliseconds



```
alain@sid:~$ openssl s_client -connect community.zimaspace.com:443
80C7C452517F0000:error:8000006E:system library:BIO_connect:Connection timed out:../crypto/bio/bio_sock2.c:183:calling connect()
80C7C452517F0000:error:10000067:BIO routines:BIO_connect:connect error:../crypto/bio/bio_sock2.c:185:
connect:errno=110



```
alain@sid:~$ mtr -rw community.zimaspace.com
Start: 2026-05-22T19:23:19+0200
HOST: sid                                         Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- _gateway                                     0.0%    10    0.5   0.5   0.5   0.6   0.0
  2.|-- 89-89-92-2.abo.bbox.fr                      20.0%    10  1075. 924.1 351.6 1313. 287.4
  3.|-- 62.34.2.200                                 90.0%    10    8.8   8.8   8.8   8.8   0.0
  4.|-- be31.cbr01-ntr.net.bbox.fr                   0.0%    10   15.6  15.6  15.3  15.9   0.2
  5.|-- i15-lef01-t2-62-34-3-194.ft.lns.abo.bbox.fr 90.0%    10   15.2  15.2  15.2  15.2   0.0
  6.|-- ???                                         100.0    10    0.0   0.0   0.0   0.0   0.0
  7.|-- be3594.ccr42.par01.atlas.cogentco.com        0.0%    10   16.7  16.1  15.7  16.7   0.3
  8.|-- be3628.ccr42.jfk02.atlas.cogentco.com        0.0%    10   86.7  86.8  86.6  87.1   0.2
  9.|-- be3071.rcr52.ewr01.atlas.cogentco.com        0.0%    10   87.0  87.3  87.0  87.5   0.2
 10.|-- ???                                         100.0    10    0.0   0.0   0.0   0.0   0.0
alain@sid:~$ 

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