"As Linux continues to gain popularity in the business world,
security issues are something that cannot be ignored. In 2003,
several well known Linux distributors had servers compromised. In
one particular case, the vulnerability was well known in advance,
but most vendors took entirely too much time to release an update.
Similarly, most security problems that users face are known well in
advance. As with any system, security on Linux is a process. It
requires full commitment and due diligence. The secret is
determining your own vulnerabilities and fixing them before
anything catastrophic happens.
"Although Linux security is entirely in the hands of system
administrators, several improvements have been made at the kernel
level. With the release of kernel version 2.6, users will now be
able to take advantage of the Linux Security Module allowing
greater levels of security customization, modularization, and ease
of management. Another thing that has changed in the past several
years is that today more of us are reliant on automated software
update services. Rather than download and install patches manually,
it is now easier to subscribe to a trusted source and let the
system manage itself. As long as the integrity of the trusted
source remains strong, automated management works flawlessly. As
soon as something questionable happens, it is necessary to
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