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<
jcrben>
not a fan of php, but I use it at work a bit - there are a lot of interesting open-source apps written in php, for better or worse...
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<
infinisil>
Oh my god, what is this
<
infinisil>
My ISP is doing weird stuff
<
MichaelRaskin>
I think there was also a netsplit
<
infinisil>
I certainly have unrelated internet problem though
<
infinisil>
My ISP is seemingly flipping every 10th bit or so
<
MichaelRaskin>
That's inventive
<
infinisil>
I can `dig @192.168.1.1 google.com` and it gets it right occasionally
<
infinisil>
But mostly there's garbage
<
infinisil>
"Got bad packet: bad compression pointer"
<
infinisil>
"Got bad packet: bad label type"
<
infinisil>
"Got bad packet: FORMERR"
<
MichaelRaskin>
Wait, but TCP/IP stack lets these packets through
<
infinisil>
This is so weird
<
gchristensen>
dig is dns is udp
<
MichaelRaskin>
Ah right. At least by default.
<
infinisil>
But like, I've never seen so many bad packets consistently
<
MichaelRaskin>
(Because TCP DNS does work, and I don't mean TLS DNS)
<
MichaelRaskin>
But UDP still has checksums, no?
<
infinisil>
This is from a bunch of dig @192.168.1.1 google.com's
<
gchristensen>
MichaelRaskin: evidently yes, since it is catching the bad packets
<
gchristensen>
infinisil: good luck convincing your ISP of it
<
gchristensen>
infinisil: I've spent the past ~1yr diagnosing an issue with iPXE on specific Aarch64 hardware flipping a bit 326M in
<
infinisil>
Lol, what was the problem?
<
gchristensen>
still don't know
<
infinisil>
The same bit everytime?
<
gchristensen>
almost all the time?
* sphalerite
recalls some SwiftOnSecurity tweet about network cables
<
infinisil>
gchristensen: Wild guess: Somebody in the line using a rather long escape sequence in the hopes of not having to escape the escapes
<
sphalerite>
where only very specific sequences of bits would cause issues. Ethernet cables are quite fickle apparently.
<
infinisil>
gchristensen: But your data contains the escape sequence
<
gchristensen>
I'd hope not :)
<
gchristensen>
I'm more thinking it is likely a bug in the firmware or hardware
<
infinisil>
And for some reason my setting of using 1.1.1.1 as a DNS server doesn't work
<
gchristensen>
or in how iPXE calculates TCP packet checksums on aarch64, for which it has special code
<
infinisil>
Sure sounds like fun :)
<
gchristensen>
you know how hard it is to get someone to believe you've found a bug in their HW? :P
<
gchristensen>
they have a minimum of eight digits of reasons to not believe you
<
infinisil>
I can imagine
dmc is now known as Amazon