Linux servers are the backbone of many critical systems and services, powering everything from web applications to databases and cloud infrastructure. As a system administrator, ensuring the security of these servers is paramount. Cyber threats are constantly evolving, and vulnerabilities…
We can utilize the “auditd” service to check when a user account was created. Let’s introduce auditd service first. The auditd service in Linux is a robust auditing framework. It is designed to track and record various system events and…
The widely used instant messaging application, Discord, is currently experiencing a global outage. Numerous users have reported encountering a perplexing “Sorry, you have been blocked” notification upon attempting to access the app. The issue appears to affect Discord across all…
Linux systems rely on a multitude of services to perform a wide range of tasks, from networking and security to system monitoring and application support. In this comprehensive guide, we will delve into the heart of Linux service management, demystifying…
The systemctl command is a powerful tool in Linux systems that serves as the interface to control and manage the systemd init system. It is a central component responsible for initializing, managing, and maintaining various system processes and services during…
The “too many logins for user” error occurs when a user attempts to log in to a Linux system but is denied access due to reaching the maximum allowed number of concurrent (simultaneous) login sessions. Here’s an example scenario: Let’s…
The “wget failed: Connection timed out” error occurs when wget is unable to establish a connection to the server within the specified timeout period. This can happen due to various reasons, such as network issues, firewall settings, or problems on…
The error message “wget: command not found” is a common response you may encounter when attempting to run the wget command in your terminal or command prompt. This error occurs when the system cannot find the wget command because it…
The “unable to resolve host address” error in wget occurs when the tool is unable to resolve the domain name of the host you’re trying to access. This could be due to various reasons, such as DNS server issues, network…
The error “Unable to locally verify the issuer’s authority” means wget cannot verify the SSL certificate of the website you’re trying to connect to. This usually happens when wget doesn’t have access to the necessary CA certificates to verify the…
