All about MAC addresses: what are they for, how to view and find out the manufacturer by MAC address

A media access control address (MAC address) of a computer is a unique identifier assigned to network interfaces for communications at the data link layer of a network segment. MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and Wi-Fi. MAC addresses are most often assigned by the […]

How to choose an apartment in Thailand to buy: the cheapest condos

When planning something serious, you need to prepare a lot in advance. And if your idée fixe is to buy an apartment in Thailand (so that you never pay rent again), then you've come to the right place)) I have spent quite a lot of time (and will still spend) studying the apartments offered for […]

Error “curl: (1) Received HTTP/0.9 when not allowed” (SOLVED)

cURL is a popular command line utility that supports many network protocols. curl supports HTTP with numerous options and variations. It can speak HTTP version 0.9, 1.0, 1.1, 2 and 3 depending on build options and the correct command line options. But when the remote host does respond with HTTP/0.9, curl fails with an error […]

Tor environment variables

Where can I see a complete list of Tor environment variables such as TOR_SKIP_LAUNCH, TOR_TRANSPROXY and others? The following information is the official Tor FAQ, with not yet accepted the pull request. This change adds a description of the Tor environment variables. Source. Which environment variables does Tor Launcher respect? Following settings can be changed […]

How do I know if I am behind NAT? (SOLVED)

What is NAT NAT is a technology that allows multiple devices to access the Internet using the same IP address. By the way, NAT is already being applied in your local network, which has a router – it is thanks to this that all your devices can access the global network and each of them […]

How to find out all DNS records of sites behind CloudFlare

How to list all DNS records for a domain Using the dig command, you can display all types of DNS records for the specified domain at once, but it does not work in all cases: dig zalinux.ru ANY To query all types of DNS records, but limiting the number of displayed sections only by the […]

All chrome://* pages. Most useful chrome:// pages

You may have noticed in Google Chrome pages whose URL starts with chrome://, for example, chrome://downloads. What are these pages? How can I find all their addresses? Which ones are really useful? This article will answer all of these questions. What are chrome://* pages for? chrome:// pages perform one or another function for the user […]

How to fix ERR_NETWORK_CHANGED error (SOLVED)

What is the error ERR_NETWORK_CHANGED The ERR_NETWORK_CHANGED error shows the Google Chrome web browser when it was unable to load the site page due to the change in network parameters. More specifically, the web browser initiated the connection and the remote host responded, but before the page was loaded, something changed on the network. Your […]

How to clear DNS and other caches in Google Chrome

Caching is an excellent technology, the essence of which is that once received files (images, scripts, HTML code) or data (DNS answers), can be reused (the user opens the same page, or the entire site uses the same JavaScript library) and no need to request or query and wait for data from the server again. […]

How to change the language of Google Chrome and Chromium on Linux

If you look at the process of changing the language in Google Chrome or Chromium in Windows, then everything is quite simple there: you need to enter chrome://settings/languages in the address bar of the browser, or you can use the menu: Settings → Advanced → Languages. Then expand the “Language” item, select the desired language […]

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