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Old 22nd November 2019
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jggimi jggimi is offline
More noise than signal
 
Join Date: May 2008
Location: USA
Posts: 6,972
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At this time of writing:
  • I can resolve the domain name to 91.231.175.100. That address does not respond to pings from here, I cannot establish a TCP connection to port 443, nor port 80, and traceroute(8) ends at 212.73.205.50, which resolves to INTERMEDIAS.edge3.Paris1.Level3.net.
  • https://downforeveryoneorjustme.com/apec.fr says that the server is up, the problem is just me.
  • https://tools.keycdn.com/traceroute testing shows failures to reach the server from 14 locations around the world -- including Paris.
My assumption is the server or its bastion network is using a packet filter, and it happens to use an OS fingerprint filter. PF can do this too, see /etc/pf.os and pf.os(5)

Last edited by jggimi; 22nd November 2019 at 03:49 AM. Reason: added the fingerprint man page
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