Dedetok: My Experience Notes

My Experience Notes These pages contain my experiences using technology. All of the works are working properly at the time when they wrote. You may use them for any purposes.

Monday, October 6, 2025

Debian 13: How to save ai solution with mathematical formula into odt file

After you ask AI, and AI give you solution with mathematical formula. You can not directly to copy-paste the result into libreoffice writer ...

Sunday, October 5, 2025

Debian 13: moving from iptables to nftables

Nftables has been introduced from debian 10. iptables still available until debian 12. since debian 13, nftables is the default firewall. th...

Wednesday, October 1, 2025

Moving apace, mariadb and php project from a debian site to other debian site

I want to create a bash script to backup and restore the project (apache, mariadb and php) easily. I need to work at 2 debian machine with t...

Tuesday, September 30, 2025

How to fix error HY000/1045 after upgrading phpmyadmin

I used Debian 13 repository to upgrade phpmyadmin. During upgrading from previous version, configuration can not be continue and must be ign...

Debian 13: how to limit cpu frequency to preserve power or keep cpu cooler

Since Debian 13, cpufreq is being replaced by cpupower. Don't mix using power-profiles-daemon and linux-cpupower. I prefer to use linux...

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