Linux built-ins are commands that are built into the shell, much like shelves that are built into a wall. You won’t find them as stand-alone files the way standard Linux commands are stored in /usr/bin and you probably use quite a few of them without ever questioning how they’re different from comma..
User groups play an important role on Linux systems. They provide an easy way for a select groups of users to share files with each other. They also allow sysadmins to more effectively manage user privileges, since they can assign privileges to groups rather than individual users. While a user group..
IBM's acquisition of Red Hat for $34 billion is now a done deal, and statements from the leadership of both companies sound extremely promising. But some Linux users have expressed concern. Questions being asked by some Linux professionals and devotees include: Will Red Hat lose customer confid..
Four vulnerabilities were publicly disclosed related to Intel microprocessors. These vulnerabilities allow unprivileged attackers to bypass restrictions to gain read access to privileged memory. They include these common vulnerabilities and exposures (CVEs): CVE-2018-12126 - a flaw that could lead t..
Running out of memory on a Linux system is generally not a sign that there's a serious problem. Why? Because a healthy Linux system will cache disk activity in memory, basically gobbling memory that isn't being used, which is a very good thing. In other words, it doesn't allow memory ..
Red Hat Summit 2019 is off to an exciting start. The conference, running from today until Thursday in Boston, is already tickling attendees’ fancies by announcing some very exciting developments. The first is Red Hat Enterprise Linux (RHEL) 8 — available now for everything from bare-metal servers an..
What are Linux modules?Kernel modules are chunks of code that are loaded and unloaded into the kernel as needed, thus extending the functionality of the kernel without requiring a reboot. In fact, unless users inquire about modules using commands like lsmod, they won't likely know that anything..
It takes some time working with Linux commands before you know which one you need for the task at hand, how to format it and what result to expect, but it’s possible to speed up the process. With that in mind, we’ve gathered together some of the essential Linux commands as explained by Network Worl..