Knowledge Base

Adding a second IP address on Red Hat, CentOS, AlmaLinux, or Rocky Linux may differ from Debian as it often involves using different tools for network configuration. On Red Hat-based systems, the nmcli tool is commonly used, or editing configuration files. Below are the steps for adding a second IP address using nmcli. Check for the Existence of a Network Interface Use the following command to check existing n...

Adding a second IP address on Debian with Netplan involves editing the Netplan configuration file. Here are the steps for this process: Check for the Existence of a Network Interface Ensure that you have a network interface installed, such as eth0. You can check this using the following command: ifconfig Look for the line corresponding to your network interface. Backup the Netplan Configuration File It's a...

Adding a second IP address on Debian can be achieved by configuring the network interface. Below are the steps for this process: Check for the Existence of a Network Interface Ensure that you have a network interface installed, such as eth0. You can check this using the following command: ifconfig Look for the line corresponding to your network interface. Backup the Network Interface Configuration It's con...

Step 1. Downloading PuTTY and PuTTYgen To download, visit the official website. You can download the installer package in MSI (Windows Installer) format, which includes both PuTTY and PuTTYgen, or download them separately without the installer. If you downloaded the PuTTY installer in MSI format, run it and follow the instructions displayed in the wizard. Step 2. Generating Key Pair with PuTTY Key Generator...

Qemu-Guest-Agent is a helper daemon that is installed on the guest system. It is used to exchange information between the host system and the guest, allowing some commands to be executed on the guest system. Commonly used commands include: shutdown/reboot the guest system without relying on ACPI commands or Windows policies changing the password of the root user re-installation guest OS freezing th...

To disable the network configuration in Cloud-Init, you need to create a file /etc/cloud/cloud.cfg.d/99-custom-networking.cfg and add the contents of network: {config: disabled} To do this, you can execute the command $ sudo echo "network: {config: disabled}" > /etc/cloud/cloud.cfg.d/99-custom-networking.cfg

In some OSes, by default it is forbidden for the root user to log in using a password; to change this, you need to edit the configuration file of the SSH daemon through the local console. Namely, check the configuration files in the directory /etc/ssh/sshd_config.d/*.conf and replace PermitRootLogin no with PermitRootLogin yes and PasswordAuthentication no with PasswordAuthentication yes If this directory ...

Creating the swap file To begin with, before creating a swap file, it is advisable to check the list of mounted partitions and their size. To do this, execute the df -h command. In this example, a swap file will be created in the /var directory with a size of 4GB. Creating a swap file sudo touch /var/.swap.img sudo chmod 600 /var/.swap.img We fill the file with zeros to the desired size. In this ...

Configuring an external firewall can provide an additional layer of security for your virtual machines and environment Go to the VPS management menu Log in to your personal account using your credentials Go to the "Services - My Services" section Select the required VPS and go to its management page Creating firewall rules Select the "Firewall" tab in the left sidebar Click the "+ Add" but...