mitchs

8 ms·

31.
by mitchs 6y ago
C'mon. Everyone knows that Class E space is the new 8/8.
32.
by mitchs 6y ago
We just told them to change it until we could ship an update that fixed it. We agreed that it was a perfectly valid SSID.
33.
by mitchs 6y ago
Fun story about one of the devices mentioned there that I worked on. We used to store the saved wifi creds in a file named exactly what the SSID was. Some user managed to break things, and with their permission we gathered detailed wifi log
34.
by mitchs 6y ago
Something worth knowing: TCP checksums should not be relied upon. If you aren't using TLS, your application needs to do its own checksums. A 16 bit 1's complement sum over a packet is not sufficient, especially given modern switch
35.
by mitchs 6y ago
Heh, std::new was some cruft I got out of backtrace(3) with some wacky embedded tool chain. Are these gains supposed to be from inlining the top level function of malloc into new? Compared to the costs of what can go on inside malloc... Is
36.
by mitchs 6y ago
When I backtrace from my malloc wrapper, injected with LD_PRELOAD, I see malloc, std::new, then the call site that involved new. Unless std::new is doing some funky shit (Like detecting dlsym("malloc") isn't glibc's mall
37.
by mitchs 7y ago
I'd argue with most enterprise's upgrade cycle for this gear it is better than a 0 day, it is a -5 to -3 year exploit.
38.
by mitchs 7y ago
I don't think it is that contrived. I've contributed to a project that had bots build every GitHub pull request and post build+test logs in the comments.
39.
by mitchs 7y ago
I just put 1 TB in AWS/Azure/GCP's cost calculators. AWS (US East 1, no free tier) - $92.07 Azure (East US) - $88.65 GCP (Americals) - $122.88 I'm quite surprised by GCP being the highest cost here, and by such a wide ma
40.
by mitchs 7y ago
I assure you there is nothing sinister about the price asymmetry. Fiber and routers have as much bandwidth coming as going. The inbound traffic is mostly composed of little http(s) requests. The outbound is full of images and mountains of J
41.
by mitchs 7y ago
As far as I'm concerned this paper more or less describes HTTP(S) fairly well. The "3.5" address is the domain name that resolves to a meaningful IP address for the L3 domain you are in. Folks are already using disjoint L3 ad
42.
by mitchs 7y ago
Amazon EIPs are free when attached to a running VM. (Unless you have more than one attached to the same VM.)
43.
by mitchs 7y ago
500? Those are rookie numbers.
44.
by mitchs 7y ago
There are traded offs in the decision. The TCAMs generically are rows of "key," "mask" and "result." A bank of TCAM can, at great power expense, answer "which is the result from the first row where my inpu
45.
by mitchs 8y ago
My thinking has always been that unsupervised biometrics are just a weird form of "something you know." Only when you put a human there to make sure there is no funny business during data entry doors it become "something you
46.
by mitchs 8y ago
Well, three quarters of the way through the article we got our answer. > The April issue of the journal Antitrust Chronicle, edited by Mr. Medvedovsky, features a drawing of a bearded man on the cover right above the words “Hipster Antit
47.
by mitchs 8y ago
> She has her own critics now: Several leading scholars have found fault with Ms. Khan’s proposals to revive and expand antitrust, and some have tried to dismiss her paper with the mocking label “Hipster Antitrust.” Unwilling or perhaps
48.
by mitchs 8y ago
Interesting, thanks for the link. Note to self, customers don't keep consistent ttls... Yikes.
49.
by mitchs 8y ago
In practice the "split path" scenario is only a problem when topology changes. Routers typically use a hash of source and destination port, source and destination IP address, and sometimes ingress port id to pick which of N equal
50.
by mitchs 9y ago
I'd say not really. BGP based lies are hilariously easy to spot, and can be observed by any ISP in the world. When the US Intelligence community blames Russia for hacking they aren't just doing geo-ip lookups and believing what th
51.
by mitchs 9y ago
I'd say look up BGP (Border Gateeway Protocol,) but the wiki page buries the important parts, since it describes the protocol state machine and packet format before even attempting to give a high level picture. AS, standing for Autonom