aexaey

25 ms·

1.
by aexaey 8y ago
How does function sound for a syntactic sugar? $ today() { date +%F; } $ echo Today, $(today) is a great day! Today, 2019-01-08 is a great day!
2.
by aexaey 8y ago
Since nobody mentioned Zulip's REST API yet, I'll do. There is one, and and it is really good. There are also native language-specific wrappers for that API, for example in python[1], which lets you write a bot in 5 lines: imp
3.
by aexaey 8y ago
> apt-get update/upgrade every week Have a look at: https://wiki.debian.org/UnattendedUpgrades
4.
by aexaey 8y ago
Yes, you're right. What I was trying to say is - On Linux, INADDR_ANY (0.0.0.0) supplied to connect() or sendto() calls is treated as a synonym for INADDR_LOOPBACK (127.0.0.1) address. Not so for bind() or course.
5.
by aexaey 8y ago
0 , which is a shorthand for 0.0.0.0 is likely the most code-golf-y way to write localhost , as many [EDIT: Linux] systems alias 0.0.0.0 to 127.0.0.1: $ ping 0 PING 0 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: ic
6.
by aexaey 8y ago
1.2 -> 1.0.0.2 1.2.3 -> 1.2.0.3 But then, much of software would fail here - Firefox/Chrome for example would both threat that as bareword and redirect to search page.
7.
by aexaey 8y ago
SD cards and eMMC chips[0] do have controller inside. Usually not a great one (tens to hundred-ish MB/s), but that's good enough - overwhelming majority of smartphones/tablets use eMMC for internal storage. UFS/eUFS card
8.
by aexaey 8y ago
There are ready-made boards for this being sold for less than $2. Just search "eMMC Adapter 153 without flash" on ebay. 153 is number of balls on the eMMC chip OP is using. You might need a different adapter for different eMMC chi
9.
by aexaey 9y ago
Percent, rather than asterisk. UPDATE t SET foo='bar' WHERE baz LIKE '$INPUT'; This will do no changes when $INPUT is empty, and only with $INPUT set to '%' will it update every record.
10.
by aexaey 9y ago
...and, if especially unlucky, that would be the trunk you're using to connect to that switch.
11.
by aexaey 9y ago
One example where XIP would be really useful is MT7688KN [1], which is a variant of MT7688 WiFi router SoC, already well supported by Linux/OpenWRT, plus 8MB of RAM on the same package. Since no external RAM is required this makes for
12.
by aexaey 9y ago
Heavily compressed and carefully pruned, it is still possible to squeeze modern (4.9) kernel into under 1.44MiB, and kernel+rootfs into 3-ish MiB: http://downloads.lede-project.org/releases/17.01.4/targets/i..
13.
Privacy expectations and the connected home(mjg59.dreamwidth.org)
2 points by aexaey 9y ago|0 comments
14.
by aexaey 9y ago
LineageOS (ex-CyanogenMod)'s flavour of Android 7 works just fine [1] on Nexus 5. On the other hand - yes, hammerhead is stuck on Linux kernel 3.4, which is no longer maintained, and current best effort to forward-port to mainline ke
15.
by aexaey 9y ago
Warp is pretty good, but it doesn't support websockets.
16.
by aexaey 9y ago
For what it worth, Dutch has "ij", which could be a letter, or diphthong, or two unrelated letters (in words borrowed from French, for example), and could also be written as "ij", or as "ÿ", or even "y&quo
17.
by aexaey 9y ago
fail2ban [1] would take care of this by automatically firewalling off IPs that fail to authenticate too frequently. [1] https://www.fail2ban.org/
18.
by aexaey 9y ago
I think GP meant "metallicity" as a property of stellar objects: https://en.wikipedia.org/wiki/Metallicity
19.
by aexaey 9y ago
You can skip sshuttle's magic and do exactly the same thing manually with "ssh -D" + "iptables -j REDIRECT" + redsocks, but that's a lot moving parts.
20.
by aexaey 9y ago
Well-known unpredictable TCP-over-TCP performance would only explain OpenVPN/TCP results. But OP has posed also OpenVPN/UDP performance that is 2x...3x slower than SSH port forwarding, so I'd guess there is more to this story
21.
by aexaey 9y ago
> ESP8266 is fine with 5V Yes and no. ESP8266 would typically survive 5V applied on any pin, and sometimes even sort-of work with 5V power applied (although with much higher power consumption and no WiFI). But there is a catch. Pretty m
22.
by aexaey 9y ago
Yes. "100 Continue". [1] If client intends to send a POST request with request body large enough to try to avoid wasting bandwidth (in case server might reply with 3xx,4xx or 5xx), the client will send only headers including &
23.
by aexaey 9y ago
iw is not quite a complete replacement for iwconfig and iwlist . Former don't support some network card drivers, such as [1]. So if you happen to have one of those, you have to use latter two, deprecated or not. [1] https:/&
24.
by aexaey 9y ago
Channel 14 is only used in Japan ...and even there, only in legacy 802.11b mode: https://en.wikipedia.org/wiki/List_of_WLAN_channels#ref_C
25.
by aexaey 9y ago
You are right, except: - "Peer-to-peer" (Ring, Bleep/BittorentChat) and - "Federated" (Email, Matrix, XMPP/Jabber) ...would be a better way to convey that distinction.
26.
by aexaey 9y ago
I used term "options" here the way it was defined in RFC 791. [1] It's a standard way to extend IPv4 packet header. [1] https://tools.ietf.org/html/rfc791
27.
by aexaey 9y ago
Let me drill down it for you: Imagine two endpoints talking a backward compatible pair of standards: A only speaks ASCII, B only speaks UTF-8. Would you think they will be able to communicate at least something? Now imagine two endpoint
28.
by aexaey 9y ago
>> Largely backwards compatible > how exactly in the case of IP? For example, introduce two special IP options that would act as "page selector" for source and destination addresses respectively. i.e. SRC: 1.1.1.1, DS
29.
by aexaey 9y ago
UTF8 is backward compatible with ASCII just fine - latter is a strict subset of former. It doesn't get more backward-compatible than that! IPv6, on the other hand, is not at all backward compatible with IPv4 (was never a design goal -
30.
by aexaey 9y ago
Technically, WiFi beam-forming, which is part of the standard since 802.11n and is really taking off with high-end 802.11ac routers, is a phased array to all intents and purposes. The future is here.

More ›