pello + network security

EDNS pmtu calculation:

$ dnsfunnel -t A @c.dns.gandi.net packetfault.org

217.70.182.20   4096B   0.001536
217.70.182.20   2304B   0.001531
217.70.182.20   1408B   0.001587
217.70.182.20   960B    0.001484
217.70.182.20   736B    0.001468
217.70.182.20   624B    0.001484
217.70.182.20   568B    0.001468
217.70.182.20   540B    0.001444
217.70.182.20   526B    0.001635
217.70.182.20   519B    0.001489
217.70.182.20   515B    0.001459
217.70.182.20   513B    0.001616
217.70.182.20   512B    0.003511
217.70.182.20   4096B   0.001517
————————————————-
PMTU walking summary:
======================================================
Name                    Keys    Small   Largest Optimal
Server    IP            fit?    Buffer  Buffer  Buffer
———————————————————————————
c.dns.gandi.net.
        217.70.182.20   yes     512     4096    121