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 say we have a user named “alice” on a Linux system, and the system administrator …
Linux
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 server-side. Here are some steps you can take to troubleshoot and fix this issue: …
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 is not installed or not available in the system’s PATH.. Here’s what the error message …
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 connectivity problems, or incorrect URLs. 10 ways to fix unable to resolve host address in …
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 website’s certificate. Here are a few possible ways to resolve the issue: Install/Update the CA …
Network command in Linux ifconfig Display network interface configuration. ip addr Show IP addresses and network interfaces. ip route Display the routing table. ping Test network connectivity to a host. traceroute Trace the route packets take to a host. netstat Show network statistics and connections. ss Similar to netstat, show socket statistics. nslookup Query DNS …
In the realm of IT automation, Ansible has emerged as a powerful tool for streamlining various administrative tasks. Among these tasks, user management stands out as a common and often repetitive process. Ansible provides two primary approaches for creating users: ad-hoc commands and playbooks. This article aims to shed light on both ad-hoc commands and …
The error message “curl: (60) SSL certificate problem: unable to get local issuer certificate” typically indicates a problem with the certificate of the server you’re trying to connect to or the certificate chain leading up to a trusted certificate authority. To establish a secure connection, curl tries to verify the server’s certificate against a list …
In recent months, I’ve encountered numerous articles with titles such as “20 Linux Commands You Should Know” or “Linux Survival Guide.” However, I’ve observed that most of these articles target beginners and cover basic commands like ls or echo. Considering that my audience likely already has a grasp of these foundational commands, this article takes …
The “user already exists” error occurs in Linux when you attempt to create a new user with the useradd command, and a user with the same name already exists in the system. In this article, we’ll explore how to check if a user already exists in Linux, and various strategies to effectively handle such scenarios. …