In this article, we will show you how to install Nvidia video card drivers on a Debian Linux distro.
Continue reading “How to Install the Nvidia Drivers on Debian?”
When starting an OpenVPN server or establishing a new connection using the OpenVPN client, you may encounter an error:
Continue reading “OpenVPN Error: All TAP-Windows Adapters Are Currently in Use”
The Database Mail component is used in Microsoft SQL Server to send an SMTP notification to an administrator’s mailbox. You can enable and configure Database Mail to receive various email notifications about events on the MSSQL server.
Continue reading “Configuring Database Mail in Microsoft SQL Server”
By default, a running app in Windows can run on any of the available CPU cores. The operating system manages and distributes processes between cores. However, you can manually bind certain processes (applications) to processor cores in Windows using the Processor Affinity feature. Let’s see how to bind a program (process) to specific CPU cores in Windows.
OpenVPN client on Windows with default settings only supports one active VPN connection. When installing OpenVPN on Windows, only one virtual adapter of the TAP or Wintun type is created. If you want to connect to multiple OpenVPN servers at the same time, you need to create an additional WinTAP or Wintun network adapter.
If you try to start another VPN connection, an error will appear:
Continue reading “OpenVPN: How to Connect Multiple VPNs at the Same Time on Windows”
When a Docker container starts up, it gets a dynamic IP address by default. In this article, we will show you how to assign a static IP address to a specific Docker container.
If you clone Linux virtual machines on your hypervisor (whether it be VMware ESXi, Hyper-V, or KVM/Proxmox), they will get the same IP address from the DHCP server after powering on, even if the VMs have different MAC addresses.
You can use Wireguard to connect branch office LANs with a site-to-site VPN. In this article, we will set up a site-to-site VPN using Wireguard and configure routing between networks using an rpm-based distro (RHEL/CentOS/Oracle/Rocky Linux).
Continue reading “Configure Site-to-Site VPN with Wireguard”
Several times I came across a situation where one of the users on a Windows Server host with an RDS (Remote Desktop Services) role ran an application that leaked and occupied all available RAM. It was impossible to connect to such a host via RDP remotely. To kill the leaked process, you need to remotely logoff this user.
Some administrators use sed or regular expressions to replace variable values in structured files (JSON or YAML). This doesn’t always give a good result. It is much easier to use the jq or yq tools to process structured files.
Continue reading “How to Replace Variable Value in JSON or YAML File?”