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A comment on WiFi without internet on a Southwest flight. Parent comment

Re:WiFi without internet on a Southwest flight by c7DJTLrn on Thursday September 28, 2023 @12:35PM (#37692073)
You could try iodine, which is an IP-over-DNS tunnel. This should work unless the gateway has very restrictive rules on where DNS traffic can go.

https://github.com/yarrick/iodine

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Re:WiFi without internet on a Southwest flight by jedberg on Thursday September 28, 2023 @01:39PM (#37692976)
Most captive portals have gotten wise to this trick and block large DNS requests.
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Re:WiFi without internet on a Southwest flight by roygbiv2 on Friday September 29, 2023 @05:14AM (#37701159)
Yeah I recently found this out. It never really did work that well, I did manage to telnet into an SMTP server and manually send an email but for anything else it struggled.

I wonder if TCP over ICMP would work better.

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