log2ram How log2ram works.
This article introduces log2ram that will help you to move /var/log/ from microSD/HDD to RAM!With this package the lifetime of microSD will be longer than now with ease!
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log2ram 
Smart Watch I recommend Withings Steel HR with confidence!
This article introduces Withings' smart watch "Steel HR"!I used about 2 years so I can tell you what is pros and what is cons!If you are looking for smart watch that does not look like smart watch, this article perfectly matches!
Raspberry Pi Let me introduce my setup.sh which is available for Raspberry Pi 4!
This article introduces setup.sh that can be used for setup of Raspberry Pi !With this script you can finish boring setup only by 1 command!You can copy and use, or customize!
Anti Virus How to set OnAccessPrevention true in clamonacc on Raspberry Pi 4 ?
This article shows how to resolve problem that clamonacc in clamav doesn't work if you set "OnAccessPrevention" as true.Here you can also see the disadvantage if you set true, so it is helpful if you are thinking about introducing it.
Anti Virus How to suppress clamd using 100% when running clamonacc ?
This article shows how to resolve problem that clamonacc in clamav run uses CPU up to 100% because it always scans even if target file is not create nor overwritten.To fix it we need to download source code and rebuild clamav.Here you can see all commands which you need to run it, so you can easily introduce into your system!
HTTPS How to install TLS certificate on Raspberry Pi 4 by using ZeroSSL?
This article shows how to setup HTTPS server by apache2 on Raspberry Pi, which certificate is issued by ZeroSSL who is rival of Let's Encrypt!It is very easy to create certificate because almost all operation can be done by GUI!Here you can see many images for each configuration screen, so you can do it!
Cocoon How to switch root text of breadcrumblist by language in Cocoon
This article shows how to display string at top of breadcrumblist in Wordpress theme "Cocoon".By default it shows "ホーム" which means "Home" in Japanese.If this string is switched automatically your blog will be more close to user!
DNS How to resolve if you cannot access nextcloud by domain name ?
This article shows the countermeasure if you face the error "Access through an un trusted domain" by nextcloud.Here you can see the file and location to be modified, so you can resolve it without any mistake!
nextcloud How to introduce two-factor authentication to nextcloud on Raspberry Pi 4 ?
Let install 2 factor authentication in nextcloud on Raspberry Pi 4!It prevents cracker from logging in your nextcloud in case your password is stolen.You can complete 5 minutes, let's start it!
HTTPS How to enable HTTPS on Raspberry Pi 4 ?
This article shows how to activate HTTPS encryption.You can activate HTTPS without any mistake because here you can see many scripts and screen shots!