CentOS
While trying add new WEB domain with SSL support or installing Let’s Encrypt SSL Certificate in Vesta / Hestia / MyVesta Control Panel yo may have receive an error “Error: Let’s Encrypt validation status 400”. How to fix Error: Let’s Encrypt validation status 400 1. Login to your server
CentOS
In this article you will learn how to securely wipe hard drive Linux, also how to securely delete files in Linux. First you need found correct disk path to hard drive which you want securely wipe, list hard drives in your system. For securely erase hard drive or files we
Linux
How to fix Debian 9 apt-get update error: The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key To fix error we need download and install new SURI repository key: # wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg And
CentOS
In this article you will learn a couple of methods on how to fix Fail2ban High Memory Usage problem. There may be several reasons for Fail2ban consumption a very large amount of memory (in my case it was about 2,5 GB!). I will list some of the reasons and
Linux
How to fix error in Debian Linux: server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none Try to reinstall certificates: # apt-get install --reinstall ca-certificates Then add root certificates: sudo mkdir /usr/local/share/ca-certificates/cacert.org sudo wget -P /usr/local/share/ca-certificates/cacert.org http://www.
General
After update or new installation when you try to run Microsoft Flight Simulator 2020 on PC you may encounter a problem when intro screen shows message “Press any Button to Start” after press any button in new displayed Xbox window message: “Welcome back, “. After pressing “LET’S GO” button returns
CentOS
In this article you will learn how to Fix Zabbix Warning: Lack of Free Swap Space, and manually clear swap memory in Linux. The problem has 3 solutions, create or increase swap space, increase server RAM, and finally we can clear the swap manually. What is Swap Space? Swap space
Windows
In this article you will learn How to check Bluetooth version on Windows 10 with 5 easy steps. This method applicable for checking USB Bluetooth adapters (receivers) or internal onboard Bluetooth devices. Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices
Windows
In this article you will learn How to Check Motherboard Model From Command Prompt or Windows PowerShell. 1. In your Windows 10 open Command Prompt or PowerShell: Go to Search, type cmd. 2. Then execute next command: wmic baseboard get product,Manufacturer,version,serialnumber As result of execution wmic baseboard
cryptocurrency
In this article you will learn how to unlock 50 MH/s ETH Mining, NVIDIA RTX 3060 470.05 Driver Download and NVIDIA Beta driver. On FEB 2021 NVIDIA Accidentally released NVIDIA GeForce 470.05 Dev Drivers allowed RTX 30xx family graphic cards to mine Ethereum (ETH) at its full
FreeNAS
In this article I will show how to clear FreeNAS error: IPMI SEL low space left on Supermicro server. Fix FreeNAS IPMI SEL low space left: 0 bytes (100% used) error: 1. Login with SSH Enable SSH Service and connect to FreeNAS with SSH client 2. View the SEL (System
Linux
In this article you will learn how to install Stress on Amazon Linux in 1 min. “Stress” is a Linux utility to load and stress a computer system. Time needed: 1 minute. How To Install Stress on Amazon Linux in 1 min. step by step 1. Log in into your