Let’s see how to fix the “MySQL server has gone away” error that appears when accessing MySQL Server.
The most common causes of the MySQL server has gone away error are:
OpenVPN allows you to allow multiple concurrent user connections with the same certificate. To do this, the duplicate-cn option is used in the server.conf configuration file.
Continue reading “OpenVPN: Allow/Deny Multiple Connections Per User (Certificate)”
In this article, we’ll show you how to configure monitoring of a standalone VMware ESXi host with Zabbix. On ESXi, you cannot install zabbix-agent to enable classic monitoring. However, Zabbix can use SOAP (Simple Object Access Protocol) to communicate with ESXi using XML-RPC format messages.
Continue reading “Zabbix: Configuring VMware ESXi Host Monitoring”
AnyDesk (analog of TeamViewer) is a lightweight (about 6 Mb) cross-platform application for managing and remotely connecting to the desktop of another computer. In this article, we’ll show you how to install AnyDesk on popular Linux distros (Ubuntu, Debian, Mint, Alt).
CMake is a set of cross-platform tools for building programs from source code on different compilers and operating systems. It doesn’t directly build, but only generates a Makefile, which will then be executed by the make command.
On Ubuntu Server 18 and newer, the unattended-upgrades package is installed by default. This package is used to automatically install all updates or just security updates in Ubuntu.
Continue reading “Disable Auto Updates (Unattended Upgrades) in Ubuntu”
Most often, you will see the Grub Rescue console on dual boot computers with Linux first and then Windows installed on the computer.
Continue reading “Grub Rescue: Repairing GRUB When Linux Won’t Boot”
Wireshark is a popular network traffic analysis tool that can be used to diagnose network connections and detect the activity of various programs and protocols. For the convenience of filtering all traffic passing through the network card, you can use Wireshark filters. For novice administrators, applying filters in Wireshark raises a number of questions. In this article, we have collected basic examples of Wireshark filters (by IP address, protocol, port, MAC address, etc.), which will be useful for a quick start.
Continue reading “Popular Wireshark Filters (by IP, protocol, MAC, etc.)”
In this article, we will show you how to install and run Minikube in Hyper-V on Windows Server 2019. Minikube is a simple environment for creating a single-node Kubernetes cluster. It is great for getting to know with Kubernetes environment, experimenting, and educating your employees.
Continue reading “Installing Minikube on Windows Server Hyper-V”
In this article, we’ll take a look at how to enable Remote Desktop access to Ubuntu Server using xRDP.
Continue reading “Installing xRDP (Remote Desktop) on Ubuntu Server”
