To set up bonded (bond0) and bridged (br0) networking on Ubuntu LTS server, follow these steps: Install the necessary packages: sudo apt-get update sudo apt-get install ifenslave Configure network interfaces: Edit the network interface configuration file, /etc/network/interfaces, and configure the network interfaces you want to bond. Here is an example of two bonded interfaces, eth0 … Read more

To install ZFS on Ubuntu 16.04 LTS, follow these steps: Add the ZFS PPA repository: ZFS is not included in the default Ubuntu repositories, so you need to add the ZFS PPA repository to your system by running the following commands: sudo apt-get update sudo apt-get install software-properties-common sudo add-apt-repository ppa:zfs-native/stable sudo apt-get update Install … Read more

The Httpoxy vulnerability is a security issue that affects web applications that run in CGI environments, such as PHP, Nginx, Apache, and Go. Here’s how to fix the Httpoxy vulnerability: Check for the vulnerability: To check if your web application is vulnerable, you can use a tool such as the Httpoxy Scanner. Patch your web … Read more

On Ubuntu 16.04 LTS, you can use the apt-fast tool to speed up apt-get by downloading packages in parallel from multiple connections. Here’s how to use apt-fast: Install apt-fast: You can install apt-fast using the following command: sudo apt-get update sudo apt-get install apt-fast Configure apt-fast: Once installed, you can configure the number of connections … Read more

To see how long a process has been running on a Linux system, you can use the ps command with the -o and etime options. For example, to see the elapsed time for the process with PID 12345, run the following command: ps -o etime= -p 12345 The etime option displays the elapsed time since … Read more

To set up a UFW firewall on Ubuntu 16.04 LTS server, follow these steps: Install UFW: UFW (Uncomplicated Firewall) is not installed by default on Ubuntu 16.04. You can install it using the following command: sudo apt-get update sudo apt-get install ufw Enable the firewall: After installation, enable the firewall by running the following command: … Read more

To create a RAID 10 (Striped Mirror Vdev ZPool) on Ubuntu Linux, you can use the zpool command line utility. Here’s the step-by-step process: Identify available disks: Before you create the RAID 10 array, you need to identify the available disks. You can use the lsblk command to list all the available block devices on … Read more

The “Too many open files” error can occur in PHP-fpm when the system limit for open file descriptors is reached. To resolve this issue, you can increase the limit for open file descriptors in the system. Here’s how to increase the open file descriptor limit in PHP-fpm: Find the current open file descriptor limit: You … Read more

To configure pfSense as a dual WAN load balancing and failover router, you need to have two WAN connections and a pfSense firewall installed. Here are the steps to configure pfSense as a dual WAN load balancing and failover router: Login to the pfSense web interface and go to “System” -> “Routing.” In the “Gateway … Read more

Debian provides security patches and updates for its systems through its package management system, “apt.” To apply security patches and updates on a Debian system, you can follow these steps: Update the package list: Before you can install any updates, you need to have the latest package list. Run the following command to update the … Read more