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Everything posted by Sensei
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What?! I am the last being in the universe who could talk about such nonsense as philosophy.. Seriously.. ? Seriously deadly seriously..? According to your ex-POTUS.. must have a gun... https://www.bbc.com/news/world-us-canada-43149694 More deadly seriously: In the US? Don't get shot? ...except the US is not the world.. what you want to talk..
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A free of charge state school can be good or evil. Evil if it indoctrinates young people, brainwashes them, presents them with an alternative version of reality and turns them into supporters of their chosen politicians (i.e. world vision of these politicians). Mass production of slaves.. Paid school can be good or evil. Evil if it discriminates against people because the amount to be paid is too high for most people to bear. A loan of a dozen or a hundred thousand dollars for a 25-year-old? Seriously? Mass production of slaves.. ps. Paid is not free from indoctrination (i.e., the worldview of these teachers).. ps2. Free is not free from discrimination based on parental wealth either..
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Privacy notice + downtime on Tuesday 11th April
Sensei replied to Dave's topic in Forum Announcements
@studiot Verify 32 bit/64 bit, not on WinXP 32 bit/64 bit version, but on CPU model (Intel/AMD website).. Not many people have WinXP 64 bit. Mostly professionals. -
Privacy notice + downtime on Tuesday 11th April
Sensei replied to Dave's topic in Forum Announcements
@StringJunky It's doubtful that WinXP is to blame. Usually websites don't check what OS the user has. If it worked before the update, yesterday, now it doesn't, then it's a browser problem, not an operating system problem.. i.e., the forum developers started using a JavaScript instruction that is not present or changed in your outdated web browser, and the JS code crashed.. Today I tried to use our local Take Away site from the 2019 Linux distro with "only" a 4-year-old web browser and found that it no longer works. The location cannot be searched. Cookie-crap confirmation does not show up. JS code must have crashed and further code is not executed.. It was working fine a few months/weeks ago.. Devs generally check software on latest version of web browser.. ps. Seriously? I wouldn't dare these days to connect a WinXP machine to the Internet and use it to browse.. You don't have to buy a new computer, especially if you have >= 4 GB ram. What you need is Kali Linux Live Pendrive. 2 GB or 4 GB obsolete pendrive is enough. (I can't buy less than 16 GB in any shop. 32 GB costs $5) The last Lite version is from 2019.4 it requires 2 GB pendrive: http://old.kali.org/kali-images/kali-2019.4/ The latest Live version is from 2023.1 it requires 4 GB pendrive: http://old.kali.org/kali-images/kali-2023.1/ WinXP machine is 32 bit or 64 bit? If 32 bit, you pick up "i386" distro. If 64 bit, you pick up "amd64" distro. e.g. http://old.kali.org/kali-images/kali-2023.1/kali-linux-2023.1-live-amd64.iso Buy the cheapest 120 GB SSD for $15, and the amount of memory will not matter much. If there is not enough memory, the page file on the disk will be used (as it must be happening on your WinXP right now). But you will have to pick up "installer" distro. ps. Working on WinXP 32 bit with HDD daily must be a real pain.. Ages of waiting for something to happen.. SSD drive is ~ 10x faster than HDD.. NVMe drive is 5-7x faster than SSD, and 50-70x faster than HDD.. i.e. if something takes 5 minutes on your machine, it takes 5 seconds on ours.. Developers have at their disposal the fastest modern machines with the latest OS versions, including yet-to-be-released.. (I have Android 13 emulator, can download Android 14..) So, if the bug is introduced, which breaks code on obsolete system, they (most likely) have no idea about it.. -
Privacy notice + downtime on Tuesday 11th April
Sensei replied to Dave's topic in Forum Announcements
In the thread "Anti spam suggestion", I made suggestion, which was ignored: use JavaScript in the code.. Bots won't be able to bypass it, unless somebody will rewrite them.. https://www.w3schools.com/jsref/prop_win_localstorage.asp LocalStorage is a client-side supercookie, not sent from the browser to the server like regular cookies. It would be a nightmare/impossible to write workaround for bots written in wget/curl or equivalent code. -
Interacting with RS485 into a USB adapter... am lost in space.
Sensei replied to Externet's topic in Computer Help
Try this and tell us what the result is: https://www.cyberciti.biz/hardware/5-linux-unix-commands-for-connecting-to-the-serial-console/ ps. It is from https://www.google.com/search?q=serial+communication+on+linux https://unix.stackexchange.com/questions/42376/reading-from-serial-from-linux-command-line They suggest: cat /dev/ttyS0 or cat < /dev/ttyS0 (if ttyS0 is your serial port, but that you should get from previous tutorials) Shouldn't it be in the (online) manual of your device? Using general serial communication, you will most likely get raw data.. Which are "good for the programmer".. Try google: "how to read voltage|amperage|temperature on [model name of your device] youtube video".. maybe someone (engineer) has already bought it and made a video of how to use it, which is very common these days. This looks promising: https://www.youtube.com/watch?v=L1dxwzC3lkg How? You'd have to build all the electronics to make it work (on the breadboard at least).. Arduino would be a better choice. It comes with Arduino Studio and has lots of tutorials.. https://www.google.com/search?q=how+to+read+temperature+arduino+video https://www.arduino.cc/ Arduino analog pins are built-in voltmeters.. As long as they are within the 0-5 volt range.. Otherwise, you will have to use a voltage divider and limit the input voltage to this range (otherwise the Arduino will be damaged) Arduino-clone here is for $5 or so. You connect some sensor, for example, temperature on a breadboard, with the necessary resistors and other things, GND of the breadboard to GND in Arduino, +5V of the breadboard to +5V in Arduino, sensor pin to analog or digital pin, depending on the tutorial of the sensor. And then run Arduino Studio and write (or copy from the tutorial) the source code that reads the data from the Arduino. A job for less than an hour for a temperature sensor. -
Privacy notice + downtime on Tuesday 11th April
Sensei replied to Dave's topic in Forum Announcements
Such problems can happen if there is an invisible layer at the top of the page that prevents you from clicking on the right area (captures events).. On my Linux, these ads were at the top. If I hovered over a profile, the profile popup was below the ads. CSS should let you choose the priority of the element. https://www.w3schools.com/cssref/pr_pos_z-index.php -
The human body contains water. Water has a density of 1 g/cm^3. Ice has a lower density 0.917 g/cm³ than water (which is why it floats on the surface of the ocean). Attempting to freeze the body causes an increase in volume (each gram of water of 1 cm^3 is converted to ice crystals of ~ 1.09 cm^3 volume) and cells can be damaged. This is under normal pressure. https://www.google.com/search?q=damage+of+cells+by+cryopreservation However, there is a vacuum in space with almost no pressure. What happens to water in such an environment can be seen in this video:
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Create a drip system that is capable of making stalagmites
Sensei replied to Adam Makarenko's topic in Applied Chemistry
https://en.wikipedia.org/wiki/Stalagmite "grows" from the bottom to the top. https://en.wikipedia.org/wiki/Stalactite "grows" from the top to the bottom. You could try sodium acetate: ..you've never 3D printed anything really.. ? To make a 5 cm figure you have to wait 2-3 hours.. 5 cm height = 500 layers with 0.1mm/layer. -
..only a real idiot would use A.I. to bypass a website's CAPTCHA to send a spam email.. when he could tell to hack X, Y, Z.. ..don't add it to HTML form data (it can be automated).. make it JavaScript prompt() https://www.w3schools.com/jsref/met_win_prompt.asp prompt() -> set localstorage variable (they are JS only available, unlike cookies) -> pass to normal website -> check whether localstorage is the right one. e.g. md5( prompt question answer + random salt + ip of a person )
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Do you have SSH access to your VPS? Which distro on VPS? What storage? Do you have a local Linux installed on some physical disk? Which distro? Do you have a Linux Live pendrive? If none, then get 4 GB-16 GB fresh pendrive (it will be erased). $4 in the shop here for 32 GB, the smallest one is enough. Only 4GB will be used anyway. Download the latest Kali Linux Live from: http://old.kali.org/kali-images/kali-2023.1/ e.g. wget -c http://old.kali.org/kali-images/kali-2023.1/kali-linux-2023.1-live-amd64.iso wget -c http://old.kali.org/kali-images/kali-2023.1/kali-linux-2023.1-live-i386.iso (verify checksum!) On Windows you can use Rufus https://rufus.ie/en/ to erase pendrive and write ISO on pendrive. On Linux you can use dd command. Once you have terminal running use ssh login@domain (you don't have to have domain registered - VPS have public IPv6 reverse domain and perhaps public IPv4, some companies sell IPv4 for additional money per month) enter your SSH password to VPS (should be in the e-mail after purchase, or web control panel) Once you're logged on your VPS: sudo apt update sudo apt install apache2 service apache2 start (eventually "systemctl start apache2") nmap localhost should show you that TCP port 80 is open. Then use http://domain or http://vps-domain-name to see if HTTP server is working (the website HTML is in /var/www/html the most likely. ls -l /var/www/html to list files. You need sudo to edit the file e.g. sudo nano /var/www/html/index.html ) sudo apt install tor proxychains4 service tor start (eventually "systemctl start tor") nmap localhost should show you that TCP port 9050 is open (but it is open LOCALLY on VPS, not globally!) (edit settings to open it globally, but then somebody can abuse it for you) From home you can get something like that: └─$ nmap domain Starting Nmap 7.93 ( https://nmap.org ) at 2023-04-08 07:10 UTC Nmap scan report for DOMAIN (IP) Host is up (0.13s latency). rDNS record for IP: DOMAIN Not shown: 997 closed tcp ports (conn-refused) PORT STATE SERVICE 22/tcp open ssh 25/tcp filtered smtp 80/tcp open http Now, when you want invisible access to Tor network on a remote server from home, you use: ssh -L :1234:localhost:9050 login@domain Then in Firefox > Settings > Network Settings, Proxy, set SOCKS Host to localhost and port 1234 From now on, when you go to Firefox, it will try to connect to localhost at port 1234, ssh will tunnel it through encrypted SSH port 22 to VPS server, which will then use Tor network for further world.. You can use apache2 as proxy server too. https://www.google.com/search?q=apache2+as+proxy+server It won't be as safe as SSH+Tor, but Google and other services should work. (Google and other social medias hate Tor, Proxy, VPN and want to steal your identity.. therefor all these "verify by text message", "verify by phone".. etc. etc.) If you want to go this route, you will need some sort of SSL certificate.. (Let's Encrypt is free, so it is most likely very insecure ) You can make SSH tunnel between home and VPS to your Apache-Proxy-Server: ssh -L :80:localhost:80 login@domain Then in Firefox > Settings > Network Settings, Proxy, set HTTP Proxy Host to localhost and port 80 It won't need SSL certificate and will be much more secure. (and going that route, you don't need to have exposed HTTP proxy server for other people, sooner or later some bot will find open proxy-server and everybody will use it, better if you connect to it through encrypted SSH by localhost address and local port) Verify if you have some random IP address on https://www.whatismyip.com/ or similar stuff: https://www.google.com/search?q=what+is+my+ip Check your VPS traffic daily.. For people with money, there is Skylink from Musk.. It is damn expensive TBH.. To configure it for you? Or to teach you entire Linux?
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Is there a shining star of all crops ? [agriculture]
Sensei replied to Externet's topic in Other Sciences
..that would have to be GMO.. ..crops are not very efficient food sources.. There's a reason aliens are "green".. They've simply inserted vegetable genes into their own genome, which means they need to be exposed to "sunbath", with H2O, C2O and nutrients to ensure they have enough food.. ..monocrop farming is not recommended if you have no external source of nutrients.. i.e. such farm is exhausting natural nutrients provided by the air with water (thunderstorms with NOx).. Thus crop rotation was "invented".. External sources of fertilizer make monoculture etc.. redundants.. even to the level that even soil is not needed.. i.e. hydroponic.. (How much soil do you have on the ISS space station?) -
Need description of Prime# distribution in Riemann hypothesis
Sensei replied to Trurl's topic in Mathematics
Learn programming.. -
..everything.. ? Exactly, reverse.. This is the most childish definition of biology I've heard.. This is the most childish definition of chemistry I've heard..
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You don't understand. If an Englishman in the UK types XYZ into Google, you get something different than if ABC from anywhere in the world gets.. My "nurdles" gives different Google results than your "nurdles".. ..or do you want me to use Tor/VPN first...? I could do that.... I would have to shut down my computer first and start Linux.. (I just ran Windows to watch TV, with a USB Tuner because of the events of that day)
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When Signing In To The Forum
Sensei replied to Photon Guy's topic in Suggestions, Comments and Support
..you meant "give us an e-mail, we will send to your e-mail a special security code that you will enter to verify that the e-mail reached you" ? I hate such crap.. I have lost the ability to log into some servers this way.. Emails are no longer available.. and verification codes are not available.. (Verification code sent to the phone number - an even worse idea.. and can be used to hack a smartphone) 2FA is crap.. Used mainly by governments to illegally hack into the accounts of ordinary users.. Therefore they push so hard to have it everywhere.. You don't need anyone's FB password or hacking someone's password (time intensive) if 2FA is enabled on FB or other Internet account.. -
Arms manufacturers would of course disagree I.e., guys with AK-47s vs. modern stuff.. ..bouncing barrels and thus a lack of precision vs. recoil cushioning, etc. "Stabilization" i.e. the end of some technology will be reached when the size of an electronic component, will be counted in atom(s).. ..but it opens up new areas of optimization through multicore/threading, better algorithm optimization and so on.... But according to my buddies in the industry, almost no one is interested in such things. They claim that the cost of the programmer is higher than the cost of the hardware, i.e., it is cheaper to buy more machines than to force the programmer to write better, more optimized code.. (but he writes stuff in Bash, Perl and Python, because "it is quick, easy and cheap".. C/C++ code runs 1000x faster than Python doing the same stuff, without even multi-threading optimizations)
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Sorry, but your Google link goes nowhere for me.. I have the Greenpeace website with information on how to catch nurdles on the sieve on the beach..
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...You said you haven't seen it.... and even though you have no idea what the movie is about.... you gave me a negative.... .When Donald's secret's about prostitutes were reveled to the world he was upset... dunno way.. you want it for just like that for ME?
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You are a funny human being... ..but you forgot the way lottery works.. if you wish to win the lottery, and win.. multiplied by millions of times..
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..any difference, than your life?
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Wasn't the name of the compounds described in the film?
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Possibly in countries such as the U.S.. That would be reasonable thinking in a capitalist country.. Here the landlords have adjusted it to have only a one-year contract with tenants. Every year I have 70% of the neighbors in the building replaced. This allows landlords to increase their bills every new year. (If I were, being an landlord, and a human being, I would do the same) Nothing? If you buy a bunch of new apartments to rent out, you increase the price of the apartments on the market, which prevents others from buying (or renting) them at a lower price.. ..they should not buy too many apartments in the first place.. Do you know what it's like for IT programmers (with salaries like 10x the minimum salary here)? They buy an apartment, rent it for a mortgage + some margin, and the whole investment is a perpetual motion.. Repeat. Multiple times.. I ask the guy - why on earth, you buy yet another apartment for which you get monthly less than you earn in a day of programming, instead of investing in creating your own IT company.. I think it would be better if the government creates buildings for people.. "public housing".. no rents, no evictions, no homelessness.. The problem is with people, industry, greed.. The government passes everything (in some countries), or almost everything (in other countries) to private companies. They just give the money (your tax money) and expect results. This is a great way for them to steal government (i.e. your) money for each party. https://en.wikipedia.org/wiki/Public–private_partnership It doesn't matter if it's the construction of highways, buildings, health care, military, etc. Often, the same commodity sold in the normal market (to "the person on the street") costs less that the government pays for it through "public-private partnerships".. To me this is some kind of joke or parody.. If I order the construction of 100 buildings and pay in advance, and the land is mine, I should be treated like a king.. i.e. get a discount instead of being robbed.. If the government orders something, especially in large quantities, from a commercial company, it should cost much less than if John Doe, straight from the street, got the company to do the same things.. If there are too many inquiries, the cement factory raises the price, If there are too many inquiries, the brick factory raises the price, etc. etc. and the entire budget of the company that wins the race to the government contract is screwed up.. If the cement plant has more demand for electricity, the power plant raises the price.. How to go bankrupt here (from a businessman's point of view) is well known knowledge, get a contract with the government.. You get a contract for X to supply Y, and then in the middle of the time of everything prices went up and X^2 may not be enough.. ps. In Russia, it is corrupted in a different way. ps2. In China, it is corrupted in a yet another different way.