The error “Error while loading shared libraries: libXrender.so.1” occurs because the system is unable to find the shared library libXrender.so.1, which is needed to run a program. To resolve this error, you can install the missing library by running the following command: sudo apt-get install libxrender1 This will install the libXrender.so.1 library and its dependencies … Read more

To create a new sudo user on an Ubuntu Linux server, you can follow these steps: Log in to your Ubuntu Linux server as the root user or as a user with sudo privileges. Run the following command to create a new user: sudo adduser <username> Replace <username> with the desired username for the new … Read more

To log a real user’s IP address with Nginx in log files, you can use the $remote_addr variable. This variable contains the IP address of the user making the request. Here’s how you can configure Nginx to log the real user’s IP address in the log files: Open the Nginx configuration file: The Nginx configuration … Read more

To zip a folder in Ubuntu Linux / Debian Linux, you can use the zip command. Here’s how you can use it: Open a terminal window: To open a terminal window, click on the terminal icon in the applications menu or press Ctrl + Alt + T. Navigate to the folder you want to zip: … Read more

Mapping a static IP address using dnsmasq under LXD (Linux Containers) can be done as follows: Install dnsmasq: First, you will need to install dnsmasq on the host machine using the following command: sudo apt-get install dnsmasq Configure dnsmasq: Next, you will need to configure dnsmasq to assign a static IP address to a container. … Read more

LXD is a container hypervisor, which allows you to run multiple isolated Linux containers on a single host. If you want to run LXD containers under a KVM or Xen virtual machine, you will need to do the following: Create a virtual machine: First, you will need to create a new virtual machine using KVM … Read more

You can limit SSH (TCP port 22) connections with ufw (Uncomplicated Firewall) on Ubuntu Linux by following these steps: Install ufw if it’s not already installed: sudo apt-get install ufw Enable ufw: sudo ufw enable Allow incoming SSH connections: sudo ufw allow 22/tcp Limit the rate of incoming SSH connections: sudo ufw limit 22/tcp This … Read more

To ignore invalid SSL certificate warnings and self-signed certificate errors when using curl, you can use the following options: curl –insecure https://example.com The –insecure option allows curl to connect to an SSL server with an invalid or self-signed certificate. However, this option makes the connection vulnerable to man-in-the-middle attacks, so it should be used with … Read more

Here are the general steps to set up SSL for MariaDB and secure connections from clients: Generate a certificate and key: You can use the openssl tool to generate a self-signed certificate and key, or obtain a certificate from a trusted certificate authority (CA). Configure MariaDB to use SSL: You need to specify the path … Read more

To run Instagram Ads in Facebook Ads Manager, follow these steps: Go to Facebook Ads Manager and create a new campaign. Select the objective for your campaign, such as “Traffic” or “Engagement”. Choose Instagram as the placement for your ad. Set up your target audience, budget, and schedule. Create the ad creative, including images or … Read more