Language Selection

English French German Italian Portuguese Spanish

Unix How-To: Give Me That Old-Time Security!

Filed under
Security
HowTos

Even in the wild frontiers of today's Internet, good basic Unix system security provides extremely valuable protection against security breaches. In today's column, I'm going to rant about some basic security rules of thumb that every Unix sysadmin ought to consider.

The first basic security rule is to keep your consoles safe. Lock them up, eliminate them by replacing them with console servers (recovering rack space at the same time), and make sure that only a very select group of people have access to them. What's more, access to your data centers should be limited to just those who need to lay hands on the servers. If anyone can walk in and out, you're asking for a headache.

Data centers should be equipped with UPS or, better still, a generator to keep them up through significant power outages. Wait, you ask, is power to the data center security? You bet it is! Anything that threatens the productivity of your staff and the smooth running of your business is a security concern. UPS systems can often be configured to send low battery signals to systems and initiate auto-shutdown options, further preventing hardware loss. Check your UPS systems and make use of this feature if it's supported. If your AC is not also on the UPS or generator, auto-shutdown of systems might prevent them from being damaged through overheating.

rest here




More in Tux Machines

Debian-Based Distribution Updated With KDE 3.5 Forked Desktop

Q4OS 1.2 "Orion" is the new release that is re-based on Debian Jessie, focused on shipping its own desktop utilities and customizations, and designed to run on both old and new hardware. Read more

Atom Shell is now Electron

Atom Shell is now called Electron. You can learn more about Electron and what people are building with it at its new home electron.atom.io. Read more Also: C++ Daddy Bjarne Stroustrup outlines directions for v17

A Fedora 22 beta walk-through

The new Fedora, with its GNOME 3.16 interface, is an interesting, powerful Linux desktop. Read more Also: Web software center for Fedora Red Hat's Cross-Selling and Product Development Will Power Long-Term Growth Red Hat Updates Open Source Developer and Admin Tools

Unix and Personal Computers: Reinterpreting the Origins of Linux

So, to sum up: What Linus Torvalds, along with plenty of other hackers in the 1980s and early 1990s, wanted was a Unix-like operating system that was free to use on the affordable personal computers they owned. Access to source code was not the issue, because that was already available—through platforms such as Minix or, if they really had cash to shell out, by obtaining a source license for AT&T Unix. Therefore, the notion that early Linux programmers were motivated primarily by the ideology that software source code should be open because that is a better way to write it, or because it is simply the right thing to do, is false. Read more Also: Anti-Systemd People