To speed up DNS name resolution, a local caching server is used. The difference (speedup) is 50-150 milliseconds per request for cached data. How to enable the service systemd-resolved in Linix Mint or Ubuntu?

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There are situations when the capabilities of a regular NTP client service are not enough: rebooting a PC without a CMOS battery is an example of this. Poor Internet quality - infrequent time synchronization does not allow the NTP service to function fully. To solve this problem, the systemd-timesyncd service was invented, which works using the simplified SNTP protocol - Simple NTP.

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If third-party repositories are connected to the Linux operating system, when updating packages you may receive the error message "Key is stored in legacy trusted.gpg keyring".

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In October, it gets dark early, and the passage begins on medium waves. This is not the first time I listen to the radio station of 621 kHz in St. Petersburg from the car.

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Radio Center No. 5 in Kaliningrad began programs "Радио России" at a frequency of 549 kHz.

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Yandex Telemost is a new video conferencing application, a Russian replacement for the Zoom service.

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The "Command-not-found" stub program is triggered when a user mistakenly enters in the terminal a non-existent command name, such as "foobar". In some cases, the command-not-found program doesn't work. How can I fix it?

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There are several ways to find out your video card model.

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