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Grep thinks that it is binary file for some reason,
and doesn't process it.
Maybe there are some special characters in the txt file.

You can solve it by forcing:
grep --text
grep -a
or grep --binary-files=text

The certificate on your server is part of a chain. Many time the are delivered as separated files. Something like : server.cert and server.ca-bundle For dovecot, it easier to put them 1 file (order is important ! ). And add the file in /etc/dovecot/conf.d/10-ssl.conf ssl_cert = </etc/ssl/private/cer...

The problem is that the key has expired.
You need to update it, but do it form a trustwordy source.

from Ubuntu

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apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys B7B3B788A8D3785C

Or from Mysql:

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wget -qO - https://repo.mysql.com/RPM-GPG-KEY-mysql-2023 | sudo apt-key add -

You first should check why you have a duplicated key. You can use INSERT IGNORE command rather than the INSERT command. If a record doesn't duplicate an existing record, then MySQL inserts it as usual. If the record is a duplicate, then the IGNORE keyword tells MySQL to discard it silently without g...

You can install php-fpm, best is to install the others also apt-get install php php-cli php-common php-fpm php-mysql To enable PHP support for Lighttpd. you need to modify the php.ini file nano /etc/php/7.4/fpm/php.ini Change cgi.fix_pathinfo value to 1: cgi.fix_pathinfo=1 By default, PHP-FPM listen...

You first have to drop the current primary key,
and after create a new.
Best is to do it in 1 SQL alter statement.

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ALTER TABLE table_name DROP primary key, ADD primary key(k1, k2, k3);

You can send a task to the background,
with &. (and symbol)

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#command to the background
ls -la /home &

#get the process id
P1=$!;

#wait for it to finish
wait $P1;

I personaly like versio.nl.
It is a provider based in the Netherlands (Europe).
Good and fast service.

For more info about what types of hosting there are:
https://www.webmaster2020.com/hosting/

Nice project, may I suggest alo add the max and minimum.

The folowing code should be a good start:

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SELECT MONTH(datum),DAY(datum),min(temperature),max(temperature),avg(temperature) FROM temperature GROUP BY MONTH(datum),DAY(datum)

Found it:

CTRL+SHIFT+6 (or ^)
to start the selection
go down with arrows
and CTRL+K to cut/delete block

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