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Combined display of all available logs of Helpful. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).
- 16:17, 20 January 2024 Helpful talk contribs created page Broad qualifiers, a.k.a. thinking about what you want from your database (Created page with "{{Database related}} ===OLTP, OLAP=== tl;dr: * OLTP basically means systems with ''immediacy'', OLAP often means bulk/batch processing * Systems can be made to do both to some degree, but OLTP often comes with people wanting it to be as immediate as possible * RDBMSes are mostly used for OLTP, NoSQL has less opinion about how it's used You'll see these two as qualifiers, as kinds of setups, and sometimes as specializations of specific kinds of systems/databases....")
- 16:59, 18 January 2024 Helpful talk contribs created page Degit (Redirected page to Git notes#degit) Tag: New redirect
- 16:54, 16 January 2024 Helpful talk contribs created page CSPRNG (Redirected page to Randomness#CSPRNG) Tag: New redirect
- 16:53, 16 January 2024 Helpful talk contribs created page PRNG (Redirected page to Randomness#PRNG) Tag: New redirect
- 13:16, 16 January 2024 Helpful talk contribs created page Replay attack (Redirected page to Security notes / some flaw/exploit notes#Replay attacks) Tag: New redirect
- 21:10, 15 January 2024 Helpful talk contribs created page TCP handshake (Redirected page to Networking notes - Layer 3 (IP mostly)#TCP handhake) Tag: New redirect
- 21:10, 15 January 2024 Helpful talk contribs created page Three-way handshake (Redirected page to Networking notes - Layer 3 (IP mostly)#TCP handhake) Tag: New redirect
- 21:08, 15 January 2024 Helpful talk contribs created page Syn flood (Redirected page to Networking notes - Layer 3 (IP mostly)#TCP: Possible SYN flooding on port 80. Sending cookies) Tag: New redirect
- 16:46, 15 January 2024 Helpful talk contribs created page Linear serpentine (Redirected page to Magnetic media notes#Linear serpentine) Tag: New redirect
- 13:26, 15 January 2024 Helpful talk contribs created page Epoll (Redirected page to File polling, event notification, and asynchronous IO#epoll) Tag: New redirect
- 01:55, 14 January 2024 Helpful talk contribs created page Link preview bots (Created page with "<!-- Some SEO analysis on social sites noticed that adding a nice image to to a link often makes it more likely to be clicked. So now we're previewing ''everything''. Aside from maybe missing some of the original point (link previews were larger and harder to miss than bare links, but if they're all the same, they just clutter up the place) it also means every social site will request every page that someone links to, for metadata and possibly for images on it. Or,...")
- 15:31, 11 January 2024 Helpful talk contribs moved page Security notes / some attack notes to Security notes / some flaw/exploit notes
- 17:16, 10 January 2024 Helpful talk contribs created page Zigbee (Redirected page to Electronics notes/Various wireless notes#ZigBee specific notes) Tag: New redirect
- 17:16, 10 January 2024 Helpful talk contribs created page Home automation / smartness (Created page with " ==Home Assistant== ==Communication== <!-- Things are generally Wifi, Bluetooth, or Zigbee. '''WiFi''' is moderate range : a little more initial setup : you likely have WiFi anyway : phones speak it, but it's not guaranteed to work directly :: ...so this tends to still be a cloudy thing : protocol often proprietary '''Bluetooth''', is more private, but is regularly a little more finicky, also because it is often shorter range than WiFi. : phones speak it, but ne...")
- 23:00, 9 January 2024 Helpful talk contribs created page Dmesg (Created page with "<!-- dmesg is a fixed-size ringbuffer in linux kernel memory. printk() writes to dmesg Boot code writes a bunch to it. Later writes come from things like segfaults, oom-killer, device changes, Ringbuffer means that once full, it rewrites old lines. That fixed '''size''' is usually on the order of dozens to hundreds of kilobytes. If grep CONFIG_LOG_BUF_SHIFT /boot/config-`uname -r` says something like CONFIG_LOG_BUF_SHIFT=18 that means 256KiB (1<<18)...")
- 01:17, 9 January 2024 Helpful talk contribs created page WS2812c (Redirected page to Electronics notes/Diodes#LED pixel strings) Tag: New redirect
- 18:56, 8 January 2024 Helpful talk contribs created page XPath (Redirected page to XML notes#XPath notes) Tag: New redirect
- 18:55, 8 January 2024 Helpful talk contribs created page Xpath (Redirected page to XML notes#XPath notes) Tag: New redirect
- 13:35, 8 January 2024 Helpful talk contribs created page Schematron (Redirected page to XML notes#Related - XSLT, XPath, XQuery, XSL-FO, XSL, etc.) Tag: New redirect
- 00:10, 8 January 2024 Helpful talk contribs created page Glow in the dark (Redirected page to Luminescence) Tag: New redirect
- 23:40, 7 January 2024 Helpful talk contribs created page Push messages (Created page with "<!-- '''Push messages''' are mainly contrasted with polling. tl;dr: * Where polling is an interested party checking an intereting thing with regularity, push messages is an interesting party asking the interesting side to send them a message * while push and pull suggest direction, it's primarily about the initator Polling usually refers to regularly checking in whether anything has changed or happened. When you poll more than a few things, the overhead alone...")
- 13:55, 7 January 2024 Helpful talk contribs created page Push notification (Redirected page to Push messages) Tag: New redirect
- 19:01, 6 January 2024 Helpful talk contribs created page Screen scraping (Created page with "{{scraping}}")
- 17:05, 6 January 2024 Helpful talk contribs created page A/B testing (Created page with "<!-- A/B testing test two variants (A and B), usually showing just one to members of a population (often with a 50-50 split). It usually amounts to statistical hypothesis testing - vary one thing in what you show to people, and who complains less, clicks away less, etc. The setup and analysis can get complex - try to improve engagement metrics ''while'' trying to not affect use experience metrics, vary many different things, etc. ...but each test is usually fairly s...")
- 16:04, 6 January 2024 Helpful talk contribs created page Compound verb (Redirected page to Syntactic and lexical categories#Compound verb) Tag: New redirect
- 15:48, 6 January 2024 Helpful talk contribs changed visibility of 79 revisions on page Syntactic and lexical categories: content hidden, edit summary hidden and username hidden
- 14:38, 6 January 2024 Helpful talk contribs created page Popcorn noise (Redirected page to Stray signals and noise#Impulse noise, burst noise) Tag: New redirect
- 18:32, 5 January 2024 Helpful talk contribs created page Syscall (Created page with "<!-- A syscall refers to when a program asks not a library it's running, or another process, but asks the system itself. This usually refers to * services that only really the OS/kernel should be providing (new processes, scheduling processes). * ...or to ones that aren't ''only'' its domain, but that it still ''does'' provide, like a lot of disk and filesystem related stuff. In theory, there isn't a lot that you couldn't do yourself, without the kernel, but it...")
- 18:26, 5 January 2024 Helpful talk contribs moved page Stat to Stat syscall
- 01:40, 5 January 2024 Helpful talk contribs created page Wireguard (Redirected page to More technical VPN notes#Underlying) Tag: New redirect
- 20:51, 4 January 2024 Helpful talk contribs created page ESP-NOW (Created page with "<!-- ESP-NOW is a simple protocol that uses the ESP's WiFi radio (It coexists with the WiFi stack, also if active), meaning it works regardless of there being an AP involved. also meaning Some explanations mention that you pair with a peer, after which it will automatically recover after restart. ...which seems to be a nice way of saying "you need to send to a specific MAC you have to know and will probably hardcode" There is also a note that you can actually us...")
- 18:01, 4 January 2024 Helpful talk contribs created page WS2801 (Redirected page to Electronics notes/Diodes#LED pixel strings) Tag: New redirect
- 16:42, 2 January 2024 Helpful talk contribs created page Influxdb notes (Created page with "=====Data model notes===== {{stub}} In comparison to a more relational view... * '''database''' is a logical container for :: users :: retention policies :: time series data :: continuous queries * '''retention policy''' (RP) contain: :: '''replication factor''' (copies kept in the cluster) (autogen's default is 1) :: '''retention''' - how long to keep the data (min 1h) (autogen's default is infinite) :: '''shard group duration''' - how much data is stored in shards...")
- 16:39, 2 January 2024 Helpful talk contribs created page Template:Filename (Created page with "<tt title="filename" style="display:inline !important; background-color: #eee; border-top:1px solid #ccc; border-bottom:1px solid #ccc;">{{{1}}}</tt>")
- 23:54, 1 January 2024 Helpful talk contribs created page Ws2811 (Redirected page to Electronics notes/Diodes#LED pixel strings) Tag: New redirect
- 23:36, 1 January 2024 Helpful talk contribs created page Bluetooth 5 LE (Redirected page to Various wireless notes#Versions and speed) Tag: New redirect
- 22:27, 1 January 2024 Helpful talk contribs created page Data class (Created page with "<!-- A data class is an OO term, indicating for which objects are there to hold data. Only. They will not contain code to alter/manage that data. There might be code at all, such as * "copy this to equivalent new object""is this equivalent?" * "hash based on contents", * "print this in a standard way" ...which might all be automatically generated. Depending on the language, you might be able to declare these in an unusual way to avoid writing all of those, and/or a...")
- 17:14, 30 December 2023 Helpful talk contribs created page Souce NAT (Redirected page to Networking notes - Layer 3 (IP mostly)#NAT) Tag: New redirect
- 17:10, 30 December 2023 Helpful talk contribs created page STUN (Redirected page to Networking notes - Layer 3 (IP mostly)#STUN, TURN, ICE) Tag: New redirect
- 17:10, 30 December 2023 Helpful talk contribs created page TURN (Redirected page to Networking notes - Layer 3 (IP mostly)#STUN, TURN, ICE) Tag: New redirect
- 14:43, 30 December 2023 Helpful talk contribs created page STUN, TURN, ICE (Redirected page to Networking notes - Layer 3 (IP mostly)#STUN, TURN, ICE) Tag: New redirect
- 14:35, 30 December 2023 Helpful talk contribs created page Webrtc (Redirected page to Javascript notes - browser related, APIs#WebRTC) Tag: New redirect
- 16:22, 27 December 2023 Helpful talk contribs created page Metrics (Redirected page to Similarity or distance measures/metrics) Tag: New redirect
- 14:49, 27 December 2023 Helpful talk contribs created page Template:Opinions (Created page with "<div title="point of potential confusion" style="padding:.2rem .4rem; border-left: .65rem solid; border-radius:.4rem; border-color:rgb(213, 170, 204); font-size:110%; background-color:#fffff766; "><span style="color:#959090;">💬</span> <span style="color:#777;">This is colored by worldview, politics, or otherwise opinions that are in some part mine. You make up your own mind.</span></div>")
- 12:49, 24 December 2023 Helpful talk contribs created page HPND (Redirected page to Intellectual Property, Copyright, and related rights#Historical Permission Notice and Disclaimer (HPND)) Tag: New redirect
- 14:45, 19 December 2023 Helpful talk contribs created page Gray world (Redirected page to Illuminant correction#Gray world) Tag: New redirect
- 17:50, 17 December 2023 Helpful talk contribs moved page Web generations to Web generation-y numbers
- 12:54, 15 December 2023 Helpful talk contribs deleted page Legal and government data notes (content before blanking was: " =Dutch data= There is overlap between sites, and e.g. between the KOOP's repositories. This seems to come in part from the fact that different collections exist because of different laws, which happen to have overlapping requirements to the publication. It e.g. seems that * officielebekendmakingen.nl comes from the Bekendmakingwet (BWBR0004287) - algemene regels {{verify}} * openoverheid.nl comes from Wet open overheid (BWBR0045754) {{verify}} ==Exi...")
- 20:57, 9 December 2023 Helpful talk contribs deleted page Webpage scraping notes (content was: "{{scraping}} =HTML and XML parsing=", and the only contributor was "Helpful" (talk))
- 20:57, 9 December 2023 Helpful talk contribs created page Template:Scraping (Created page with "{| align=center style="background: #f5f9e0; border: 1px solid #aaa; padding: .2em; margin-bottom: 3px; font-size: 95%; width: auto; page-break-before:avoid; -moz-border-radius-bottomleft:0.25em; -moz-border-radius-bottomright:0.25em; -moz-border-radius-topleft:0.65em; -moz-border-radius-topright:0.65em;" | style="padding-right: 4px; padding-left: 4px;" | '''HTML and XML parsing''' : Python: BeautifulSoup ElementTree / lxml scraping Wrapping or controlling...")