Raspberry Pi How to deal when non malicious file are reported by Rootkit Hunter?
I received this email after installing Rootkit Hunter.I concluded they are not malicious files but detected by Rootkit H...
Security
Raspberry Pi 
Raspberry Pi How to install Rootkit Hunter to Raspberry Pi 4?
I installed Rootkit Hunter which is app for detecting rootkit!Antivirus is not enough for secure server, is it?Is there ...
Amazon Linux How to install mod-security which is WAF to Lightsail?
I installed mod-security which is one of most famous WAF(Web Application Firewall) to Lightsail.I unexpectedly struggled...
Anti Virus Let’s setup your own cloud storage with nextcloud on Raspberry Pi 4!
Let's have your own cloud storage with nextcloud!That can be installed on Raspberry Pi 4 easily!I want to own my cloud s...
Raspberry Pi How to switch SSH login method from password to public key authentication?
I am sure you know usual authentication is password base.If you change to public key authentication, you can avoid spoof...
Raspberry Pi How to switch user from “pi” to original user on Raspberry Pi 4?
Raspberry Pi OS has default user asUser name: piPassword: raspberryIf you use Raspberry Pi 4 only in home Wi-Fi, it is O...
AWS How to activate HTTPS on WordPress on Lightsail?
In this post there is procedure how to activate HTTPS on WordPress running on Lightsail.You can do it without any mystake because here you can see all commands to be done!
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!