2700: Account Problems

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Account Problems

Title text: arab soyjak lives

Explanation

This explanation may be incomplete or incorrect: Created by a heckin' wholesome soyjak If you can address this issue, please edit the page! Thanks.

>YOU WILL WEAR THE MASK
>YOU WILL SOCIALLY DISTANCE
>YOU WILL FOLLOW THE ARROWS
>YOU WILL CLAP FOR OUR HEALTH HEROES
>YOU WILL OBEY THE CURFEW
>YOU WILL STOP SEEING YOUR LOVED ONES
>YOU WILL REPORT DISSENTERS
>YOU WILL GIVE UP YOUR PRIVACY AND FREEDOM
>YOU WILL USE NEWSPEAK SUCH AS "COVIDIOT" AND "KAREN"
>YOU WILL EMBRACE MASS SURVEILLANCE ADVERTISED AS "TEST AND TRACE"
>YOU WILL TAKE THE TEST
>YOU WILL BE SODOMIZED, TO TEST FOR COVID-19
>YOU WILL SELF ISOLATE
>YOU WILL TAKE THE GENE MODIFYING "VACCINE"
>YOU WILL BE MARKED WITH THE DIGITAL "SMART TATTOO" MICROCHIP
>YOU WILL BE PLACED IN DEATH CAMPS IF YOU RESIST
>YOU WILL EMBRACE THE GREAT RESET, THE FORTH INDUSTRIAL REVOLUTION
>YOU WILL REJECT GOD
>YOU WILL LIVE IN THE SMART CITY
>YOU WILL LIVE IN THE POD
>YOU WILL EAT THE BUGS
>YOU WILL EAT THE SHIT CAPSULES
>YOU WILL DRINK THE COCKROACH "MILK"
>YOU WILL GIVE UP EVERYTHING YOU OWN
>YOU WILL RENT EVERYTHING, INCLUDING YOUR CLOTHES
>YOU WILL ONLY USE THE APPROVED PRODUCTS AND SERVICES PROVIDED BY FAGMAN
>YOU WILL ONLY BE ALLOWED SELF DRIVING ELECTRIC CARS
>YOU WILL EMBRACE THE CASHLESS SYSTEM
>YOU WILL TRADE IN CARBON CREDITS
>YOU WILL CONNECT WITH NEURALINK
>YOU WILL HAVE PROPAGANDA BEAMED INTO YOUR MIND, INCLUDING SISSY HYPNO
>YOU WILL NEVER BE ABLE TO LEAVE YOUR ASSIGNED QUARANTINE REGION
>YOU WILL EMBRACE OUR NEW WORLD ORDER
>YOU WILL ACCEPT THEIR VERSION OF HISTORY
>YOU WILL ACCEPT THE NEW NORMAL
>YOU WILL OWN NOTHING
>AND YOU WILL BE HAPPY.

Transcript

This transcript is incomplete. Please help editing it! Thanks.

>The soldiers on Omaha beach died to use tough at the end of their sentences?? MANDELA EFFECT i thought it was for biblically-accurate basedjaks listening to so-bad-it's-good lofi hip hop Plastic Love like in my uncanny valley immersive sim lost media metroidvania-inspired mature animes with no Ludonarrative dissonance because it's almost as if, for less than the cost of a Big Mac, fries and a coke, you can vote with your wallet and buy techwear and asmr pc music in the liminal spaces at the same femboy hooters where john lennon used to beat his wife like an irl boss battle along with the other low-end karens and male manipulaters who gatekeeped and gaslit the /mu/core prequel memes that fact checked that part of neon evangelion where the pope existed in the cars universe during a fucking pandemic like how Ed Edd n Eddy took place in purgatory or how Yakuza John Wick literally made comfy trope threads that trusted the science saying that an inheritance is just your relatives dropping loot when they die, though[1][2][3][6][11][14][19][22][24][25][28][33][39]. Fuck Jim Morrison.

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Doppler Effect

Title text: The Doppler effect is a mysterious wavelength-shifting phenomenon which seems to primarily affect sirens, which is why the 🚨 emoji is red.

Explanation

This explanation may be incomplete or incorrect: Created by an ALARMED BOT THAT GOES NYOOOOM - Please change this comment when editing this page. Do NOT delete this tag too soon. If you can address this issue, please edit the page! Thanks.

Miss Lenhart is teaching a class about the concept of redshift and using the Doppler effect as a demonstration. The comparison begins as relevant, but then quickly becomes extraneous when she brings up the "BUTTON THAT MAKES IT GO PYEEW! PYEEW!". In fact, it seems she cares more about her special interest in various emergency vehicle sirens than about astronomy, the field in which she teaches, similar to 1519: Venus.

In the second and third panels, Miss Lenhart talks about the strange noise sirens (and cars) make when the pass you. The usual explanation of Doppler effect is that the source of the sound waves is moving. Consider a sound being generated at a frequency of 1000 cycles per second (Hz); each wave will propagate at a fixed speed in the air, the speed of sound. The car generates peak A, which begins moving away at the speed of sound, and 1/1000th of a second later, generates peak B, which also begins moving away at the speed of sound. In that 1/1000th of a second between peaks being generated, the car has traveled slightly forward, so peak B is produced slightly farther along the car's direction of travel than the previous peak. For an observer in front of the car, because peak B was generated a bit closer to the observer, they would measure (hear) a shorter wavelength (higher pitch) than if the peaks were generated from a stationary car. Similarly, for an observer behind the car, because peak B was generated a bit further away, they would hear a lower pitch. However, Miss Lenhart doesn't make this usual explanation and instead starts talking about how cool emergency sirens are.

Redshift is the same concept applied to wavelength of light and stellar objects. Red has longer wavelength than blue, and stars gets red when they move away from us and blue when they move towards us. We usually talk about redshift and not blueshift because while stars in our galaxy can move in any direction, the other galaxies are all moving away from us, and in fact they are moving quicker the father away they are, due to universe expanding. Note that unlike the usual explanation of redshift for sirens, a major component the redshift of light from distant galaxies is due to the expansion of space. This effect is not an important component of the Doppler shift for sirens. Redshift has been mentionned multiple times before, such as in 2764: Cosmological Nostalgia Content and 2853: Redshift.

The title text explains that the Doppler effect particularly affects sirens. This isn't actually true,^{[citation needed]} but it may seem like it because sirens are almost always the analogy given, as in Miss Lenhart's lecture. Then it claims that the emoji for sirens is red because they're associated with redshift. Actually, the emoji is a picture of the rotating light on top of emergency vehicles; these tend to be used in conjunction with sirens, and they're red because this color typically signifies danger or warning.

Transcript

This transcript is incomplete. Please help editing it! Thanks.

[Miss Lenhart is pointing with a stick to a whiteboard with various scientific drawings and words, including but not only a graph.]

Miss Lenhart: The more distant a galaxy is, the redder its light.

Miss Lenhart: Why? Well, that's an interesting question.

[Zoom in on Miss Lenhart.]

Miss Lenhart: Ever notice how, when a siren is approaching, it sounds like Bweeeeeeeeee...

[Zoom in on Miss Lenhart with her arms raised.]

Miss Lenhart: ...but then it zooms past and goes Nyeeeeooooowww?

Miss Lenhart: And sometimes they hit a button that makes it go Pyeew! Pyeew! really loud?

[Miss Lenhart with her finger raised is standing in front of the whiteboard and holding the stick down.]

Miss Lenhart: And in Europe they go Oooo^eeeeoooo^eeee...

Off-panel voice: So why are galaxies red?

Miss Lenhart: Oh, no idea.

Miss Lenhart: Anyway, another siren I like is...

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Discussion

What was going on with this page? Sarah the Pie(yes, the food) (talk) 00:58, 19 November 2022 (UTC)

Vandalism. I mentioned it on the Admin requests page. It's getting reverted back to normal pretty quickly when it happens, but it will probably keep happening until an admin bans the person doing it, or the person doing it gets bored and stops on their own. Equites (talk) 01:05, 19 November 2022 (UTC)

are two nazis actually in an edit war or is it just one person astroturfing --162.158.63.100 01:18, 19 November 2022 (UTC)

I'm trying to combat it, but I'll only be able to keep this up for around another 20 minutes or so. InfoManiac (talk) 01:21, 19 November 2022 (UTC)

Is TheusafBot ofline or something? Generally it handles this sort of stuff pretty well--Mapron01 (talk) 01:44, 19 November 2022 (UTC)

I'm pretty sure he is. Starstar (talk) 02:23, 19 November 2022 (UTC)

This reminds me of the time I used a character in my password that was the "stty kill" character for one workstation's default console terminal settings. I normally logged in via ssh, and occasionally logged in via xdm, but the time I tried logging in via the console, it really didn't like what was left of my password. 162.158.62.180 01:25, 19 November 2022 (UTC)

Ah, the good old days when ordinary printing characters were used for erase and kill. Barmar (talk) 01:43, 19 November 2022 (UTC)

Vandals are just looking for a fun time, generally. Solution: make it not a fun time for them. Revert their edits dryly, patiently, with no particular comment or anything. Eventually they will get bored and find something else to do. Or, perhaps they'll sit there vandalizing while we revert them, we dozens against probably just one vandal. But if you make your irritation clear, that's "fun" to them, and they'll keep at it with renewed vigour. 108.162.216.239 01:37, 19 November 2022 (UTC)

I accidentally used a backspace character in a username one time. It caused all sorts of problems with my account.

Also, I've never found the whole "The trolls will leave you alone if you don't move." thing to be effective. But I've never found anything else to be effective at universally adjusting behavior either. -Master Areth

I wrote most of the current page after the first paragraph. It's a fairly sloppy first draft that could probably use some editing. Anyone who can should feel free to clean it up. Especially since the page is now protected (I'm not complaining; it was necessary) and so I can't edit it any more. Equites (talk) 05:57, 19 November 2022 (UTC)

Hi Equites, I rewrote the explanation, hope that's okay. I removed the references to the security aspect because I didn't think it was relevant. (Also pinging FrankHightower.) --Hddqsb (talk) 07:59, 20 November 2022 (UTC)

The first paragraph seems a bit superfluous - it's basically just a description of the comic, so isn't really adding anything to the explanation. Also, I think the bit about Pascal could come out of the second para - it doesn't appear to be relevant to what's going on in the comic, so it could just skip to the bit about null terminators.172.70.91.54 16:46, 21 November 2022 (UTC)

I removed the most superfluous part from the first paragraph, and pared down the explanation of Pascal strings (diff). I didn't remove the first paragraph entirely because I think it provides important context and details which are implicit in the comic. And I think it's important to at least mention Pascal strings because that sets the scene for the explanation of C strings (which don't explicitly store the length). --Hddqsb (talk) 10:08, 22 November 2022 (UTC)

Seems to be another Tech issue comic, its a tech issue with Cueball talking to Megan and the tech issue is extremely cursed. Should we add this one?162.158.22.98 06:00, 19 November 2022 (UTC)

"since there is no sequence of keys he could type that would result in a null terminator" ... I can type a NULL (ASCII 00) just fine in my editor on Linux (ctrl-v ctrl-@, the latter I type as ctrl-shift-2). However, I am not quite sure how to phrase this in the explanation without sounding like "Áctually! ...." Henri

I am amused that both in the main text and in this comment something has converted the "at sign" into [email protected].

The title text is likely a reference to this reddit post. Pb (talk) 07:06, 19 November 2022 (UTC)

I don't think that's likely... --Hddqsb (talk) 08:50, 20 November 2022 (UTC)

The only thing is I'm pretty sure it's not terribly difficult to enter a null string character, you just have to know what it is. On a PC with a keyboard that has a number pad, you can press Alt-[Number] to enter special characters using their ASCII code (Alt-65 will get "A", Alt-8 is backspace or delete, I forget which but I think BS, etc. MIGHT need leading zeroes to be 3 digits). The 0 to 31 codes - 32 is space, starting the normal characters - tend to have all the special characters, I think null string is 0? NiceGuy1 (talk) 04:14, 20 November 2022 (UTC)

It is. And (with caveats, depending upon other issues and circumstances) Alt-numpad0 would give me the null-char wherever it's practical and not blocked (intentionally or just because it isn't specifically catered for).172.71.178.206 15:25, 20 November 2022 (UTC)

I know a sysadmin friend of mine had to help a user whose account name was "🦙" (The Llama unicode symbol) and he was on a computer where not all layers between the username field and the password authentication understood unicode. Examples like this will happen in real life. IIVQ (talk) 11:16, 21 November 2022 (UTC)

Were they Spanish, by any chance?172.70.90.173 16:49, 21 November 2022 (UTC)

As Cueball is showing and handing over his laptop, I don't think the issue is about a website account (where he could probably do a password reset), but his local account on the laptop, of which he is now locked out, and hopes Poneytail can break into it? ghen (talk) 18:28, 19 November 2022 (UTC)

Good point, updated to avoid referring to "website" specifically. (Another possibility is that it is the password for some installed application.) --Hddqsb (talk) 07:17, 20 November 2022 (UTC)

"Suppose a website's registration form allows the user's new password to have up to 20 characters, but due to a programmer error the login page only accepts passwords with up to 18 characters."
There are also cases where page or application is updated with the expectation that old user accounts will still be working, but updated page no longer accepts same characters (or number of characters) than the old one, locking some people out. -- Hkmaly (talk) 01:35, 20 November 2022 (UTC)

I know from experience that (at least one version of) Windows Server allows very long passwords and that the Windows Server installer will accept very long passwords when setting up the initial admin account, but that the installer silently truncates the password to a "normal" length when actually setting up said account. If you aren't aware of this (and you have a client that uses ridiculously long passwords), you can easily trick yourself into thinking you mistyped and locked yourself out, and have to reinstall. Once installed with a shorter password, it can be changed to whatever length you want.172.70.134.122 16:16, 21 November 2022 (UTC)

Concerning the password described in the title text. If the characters are used in the order they appear in the Unicode Table the password starts with the Null String Terminator and therefor you will essentially end up with an empty password if C or a programming language is used handling strings the same way. Kimmerin (talk) 12:51, 21 November 2022 (UTC)

Good point, added (snapshot). --Hddqsb (talk) 15:38, 21 November 2022 (UTC)

I've actually had this problem long ago; I used the @ sign as part of my password, and it didn't let me log in anymore. Some systems in the good old days (I think it was an FTP server) used the @ character to separate username and password when authenticating. Also, I am still running into this problem sometimes with usernames (emails) allowing "+" in the address on registration, but not when logging in. Pbb (talk)

The @-sign is used to separate authentication and hostname information in an URL, e.g. http://user:[email protected]:port/... Within an FTP-session it was commonly used in FTP-proxy scenarios, i.e. you've connected to an internal FTP-proxy-server providing username and hostname as username in the form [email protected] (similar to the syntax used for scp/sftp) and the password as is. An @-sign in the password in the latter shouldn't have any effect and within the URL an @-character would get URL-encoded not having an effect, either. URL-encoding might be the reason for the last problem, you've described leading to a space in the stored value on the server side. Kimmerin (talk) 15:50, 21 November 2022 (UTC)

A very similar situation happened when I was network manager at Moravian College back in the mid-‘90s. A user was unknowingly typing an ASCII 0 character as a “special” character for their password, and doing it as like the 4th character typed, so the rest of what they typed (which was about 8 more characters) was simply ignored, the system thought their password was just the first 3 characters, the user was none the wiser, until the day I implemented checks to require “strong” passwords that included a minimum length. The user came to me all huffy that their password *was* long enough, but they system was making them change it, but not accepting the change. I never ask users for their password, so diagnosing the problem took a few tries, I had to think to ask them to prepend 8 x’s to the front of their password, and when that worked then I understood the problem.

NULL was also a headache for me in the early 2000’s, working with Oracle web forms, and some weird interaction of software bugs between a particular version of Safari web browser, Apache web server, and Oracle somehow allowed the string “NULL” to get into the Oracle database, breaking the SQL Boolean function IS NULL. The kludge was to change the IF [string] IS NULL” test to be IF [string] IS NULL OR [string] = “NULL” (Unfortunately not the ugliest code I have ever written) John (talk) 12:40, 25 November 2022 (UTC)

Not with null-character, that I'm aware, but when our small company (with Novell-based networking, for fule-servers, printers and most asynchronous communications to the outside world via a somewhat proprietry email gateway over a dial-up) merged into a larger company (with NT servers, and the rest, and now tied directly into their worldwide-WAN by ISDN) there were various hiccoughs in making sure existing and extended infrastructure didn't have conflicting ideas of what was acceptible in the now unified logins. (Not to mention that our username system had been initial-based, but we were now needing formats based upon full names. We had to keep both continuity (for our own long term usage validation) and a migration (to integrate into theirs) and otherwise competent users who were big experts in their own field of data analysis often could not handle the technicalities of multiple/nested logins or the logistical fallout from having their initial login profiles 'remembering credentials'. The fuss it took, until we phased through a full migration (helped by some staff turnover) and relegated the much more competant Novell system to backup/archive servers only.

And then there was the printer that aperiodically 'broke' because the replacement Windows printserver was somehow unable to pass some particular control characters (not sure if null was ever amongst them) that were occasionally used as the daily-changing hashed output to 'sign' the printouts and thus prove their legacy/providence.

I got a great deal of experience with system migrations, from all that, but also a strong dislike of being pushed into them or things that aren't themselves 'broke' being 'fixed' by mandatory upgrades. 172.70.91.58 14:53, 25 November 2022 (UTC)