If you’re running an Ubuntu server, you know that security is job one. Password-based logins for SSH are convenient, but they’re a major vulnerability. A much more secure approach is to use SSH key-based authentication. (more…)
If you’ve ever tried compiling a Linux kernel from source—whether to add custom system calls, test new features, or optimize for specific hardware—you might have encountered the frustrating “No rule to make target ‘debian/canonical-certs.pem'” error. (more…)
Security is paramount, and one of the first lines of defense for any system, whether it’s a desktop or a server, is a properly configured firewall. (more…)
If you’re managing Ubuntu servers or desktops, understanding systemd is absolutely essential. systemd is the init system and service manager that’s become the standard for most Linux distributions, including Ubuntu. (more…)
If you’ve ever encountered the frustrating Cannot connect to the Docker daemon at unix:/var/run/docker.sock. Is the docker daemon running? error, you’re not alone. (more…)
If you’ve recently upgraded to Ubuntu 22.10 from version 22.04, you might have encountered an unfamiliar sequence of warning messages during the boot process. (more…)
When developing software, particularly in languages like C and C++, crashes are inevitable. The dreaded “Segmentation fault (core dumped)” message can be frustrating, but the core dump it generates is a valuable debugging tool. (more…)
Have you ever been working in your Ubuntu terminal when suddenly that jarring error sound interrupts your flow? Those system alert sounds might be useful sometimes, (more…)
When working with web development stacks, one of the most frustrating roadblocks can be database connectivity issues. If you’ve recently upgraded to MySQL (more…)
If you’ve ever tried setting up a virtual Ubuntu environment using VirtualBox, you’ve likely encountered the frustrating error message: “This system is currently not set up to build kernel modules” when attempting to install VirtualBox Guest Additions. (more…)
