| I have been using RedHat Linux as my primary Internet server platform since version 5.2 in spring 1997, with no security issues because of a sound design driven by paranoia about the Big Bad Internet. I chose Linux because once I learned what I could do with a multi-tasking computer system (previously OS/2 2.x and Warp) I wanted to move up a level to something that was even more reliable and secure and Internet-ready. When I had little further need to use or support Windows applications I began using RedHat Linux 7.x for my desktop and daily operations. I have also installed and used OpenBSD 3.2 for a server application but the security needs of my world is served well enough with prudent RedHat configuration.
Personally, I use the following machines in my own office: - a Fedora Core 5 desktop for my main workstation, which also serves some web sites and applications;
- a Fedora Core 5 desktop for digitising and editing my music collection;
- a Fedora Core 5 desktop to run MythTV and serve multimedia for home use; and
- a Fedora Core 1 server that runs my domain and a few others, providing DNS, HTTP, SMTP and FTP services.
Professionally, I administer 8 RedHat (7.3, 9, EL 3 and 4) servers, 3 locally and 5 in the US.
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Understanding of OS Issues
My experiences with OS/2 prepared me with a sound understanding of what an operating system should be, and moving to Unix was not a large step to take. The Internet has a vast range of self-support resources - I know how to ask the right questions and I am not afraid to read.
Configuration
Unix provides a wide array of configuration options that usually eludes users and corporate MIS staff. I have configured Unix machines in many different ways over the years, and have learned what works and what doesn't, and why.
Operations and Troubleshooting
Running a few full-time Unix machines and helping others do the same, combined with my technical understanding of the system, has taught me how Unix ages over time, and simple proactive measures that can be implemented to avoid problems.
Currently I run servers for SMTP, FTP, HTTP (static and database-driven), SSH and SMB services for several domains.
Leveraging
I have long realized that it is not sufficient to merely "install" one computing system or another. Unix drew my interest (and kept it) because it allows an incredible amount of leverage to be gained from a single PC and some software. Realizing that potential and harnessing it separates Companies that Compute from Companies with Computers.
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