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Articles Written by: CHARLIE SCHLUTING
We all know we can use open source software without paying, but the real question is:
what compels people to buy free stuff? Most widely used free and open source software can
also be purchased. We are not speaking of alternative commercial licensing, ...
From CHARLIE SCHLUTING,
LXer,
24 Oct 2009
Recently, we observed
someone noting that Xen doesn't provide the same physical-to-virtual (p2v) conversion
capabilities that VMware does. Yet another reason Xen isn't as widespread as VMware, the
theory goes. The question this raises, however, is, ...
From CHARLIE SCHLUTING,
LXer,
16 Oct 2009
We all know we can use open source software without paying, but the real question is:
what compels people to buy free stuff? Most widely used free and open source software can
also be purchased. We are not speaking of alternative commercial licensing, ...
From CHARLIE SCHLUTING,
LXer,
16 Oct 2009
Running a Samba server or NAS
appliance consolidates file storage beautifully for centralized backup and management,
but one thing has never been easy: file permissions. In this article, we examine why this
is often so difficult, and offer some tips on ...
From CHARLIE SCHLUTING,
LXer,
16 Sep 2009
You hear it all the time: Xen is not ready to take market share from VMware because it
is not as mature a product. Many disagree, because all the core functionality exists in
Xen, but it isn't configurable via a unified GUI. In this article, we ...
From CHARLIE SCHLUTING,
LXer,
11 Sep 2009
The Cisco VPN client, vpnc, enables your Linux workstation to connect to a Cisco 3000
series VPN concentrator PIX firewall. Until vpnc existed, corporate employees were often
relegated to connecting to their company's network via a Windows machine or ...
From CHARLIE SCHLUTING,
LXer,
16 Jun 2009
Pain-free networking is the promise that the NetworkManager project makes.
NetworkManager ships with most major Linux distributions now and is, by default, enabled
at boot time. For mobile laptop users NetworkManager is great, but its usefulness ...
From CHARLIE SCHLUTING,
LXer,
5 Jun 2009
GNU Screen is a terminal multiplexer
program that Linux folk have used for ages. It allows you to turn one terminal into many,
and run processes even after logging out. In this article we will give a brief overview
of screen usage for the uninitiated, ...
From CHARLIE SCHLUTING,
LXer,
1 Jun 2009
Tunneling over untrusted networks is a flexible, powerful security tool. We continue our classic Networking 101 series with Charlie Schluting's gentle introduction to how they work, and some easy-to-try examples with SSH.
The computing world has ...
From CHARLIE SCHLUTING,
LXer,
12 Dec 2008
Virtual memory is one of the most important, and
accordingly confusing, pieces of an operating system. Understanding the
basics of virtual
memory is required to understand operating system
performance. Beyond the basics, a deeper understanding allows a ...
From CHARLIE SCHLUTING,
LXer,
22 Nov 2008