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Not your father’s Celeron

Dave Farquhar Hardware, Linux July 31, 2013July 15, 2017amd, asus, debian, intel, Libre Office, micro atx, Microsoft Office, Open Office, overclocking, passwords, samsung

I picked up a Celeron G1610 CPU last week and I’m using it to build a Linux box. Yeah, it’s a Celeron. But it performs like a 2011-vintage Core i3 or a 2010-vintage Core i5, consumes less power than either, and costs less than $50. It’s hard to go wrong with that. Read more

Dave Farquhar

David Farquhar is a computer security professional, entrepreneur, and author. He started his career as a part-time computer technician in 1994, worked his way up to system administrator by 1997, and has specialized in vulnerability management since 2013. He invests in real estate on the side and his hobbies include O gauge trains, baseball cards, and retro computers and video games. A University of Missouri graduate, he holds CISSP and Security+ certifications. He lives in St. Louis with his family.

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Windows vs. Linux kernel performance

Dave Farquhar Linux, Windows May 13, 2013December 3, 20181990s, acer, amd, apple, dell, hp, intel, lenovo, NSA, oracle, sp3, unix, vista, windows 8, windows nt, Windows XP

An anonymous Microsoft developer spilled some juicy opinions about why Windows kernel performance isn’t all it could be and answered some longstanding questions about Windows vs. Linux kernel performance in the process. Although he has recanted much of what he said, some of his insights make a ton of sense.

Dave Farquhar

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How to build bootable Debian installation USB media from Windows

Dave Farquhar Linux, Windows May 5, 2013August 5, 2017debian, Image File, ISO, thumb drive, ubuntu, USB flash drive

Debian 7.0 (Wheezy) came out this weekend, and I want to mess with it. Here’s how I wrote the installation media to a USB thumb drive for it using a Windows box. Because sometimes that’s all you have available to work with. If you prefer another Linux distribution, like Ubuntu or CentOS or Fedora, the same trick will work for them too.

Dave Farquhar

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DROP DATABASE wordpress;

Dave Farquhar Apache, Linux, This weblog February 7, 2013apache, firewall, mysql, PHP, SQL

This week, I doubled back down in earnest to get my webserver running on the hardware I bought a year ago.

After getting Apache, PHP and MySQL installed on the box and playing together nice, I installed WordPress and got it running. Then I tried backing up and restoring files from my existing server, and the server didn’t like that one bit.

Dave Farquhar

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Four simple steps to optimize WordPress

Dave Farquhar Apache, Linux February 1, 2013August 16, 2014apache, mysql, os x, spam, SQL, x86

A couple of years ago, I stood up a WordPress server. I made no effort to tune it, let alone turbocharge it, which is a decision I later came to regret. If your site gets more than a few hundred hits per day, you need to tune it. If you want to get more than a few hundred hits per day, you need to tune it because Apache and MySQL’s default settings are by no means one-size-fits-all. And you can never have too much speed. There are two reasons for that: Google favors fast sites over slow sites, and Amazon found that a one-second delay in page load drops traffic by 7 percent.

There’s a lot of advice out there on tuning WordPress, some of which seems to be good, and some of it not so good.

Here are four things that I know work. I run Apache and MySQL under Linux; these tools may run under Windows or OS X too.
Read more

Dave Farquhar

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A minor (but vital) Apache performance tweak

Dave Farquhar Apache, Linux January 27, 2013April 15, 2017apache, mysql, perl script, PHP, spam, x86

My problems seem to have become more rare since I started blocking spambots and tuned PHP and Apache but last night my server ran out of memory again and started timing out.

It turns out I still had a critical problem, but one that’s easy to fix with a relatively simple Perl script.

Dave Farquhar

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Cutting Apache preforks seems to help small web servers

Dave Farquhar Apache, Linux, Software November 30, 2012November 28, 2012apache, mysql

I’ve had a ton of downtime this week (this seems to be the busy time of year for my web server), but I think I traced the problem to a known issue.

Dave Farquhar

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Games would be just what Linux needed

Dave Farquhar Linux July 27, 2012Ad Lib, amiga, apple, apple ii, atari, commodore, commodore 64, IBM, macintosh, Steve Wozniak, VGA, vista, windows 8

Valve is intending to develop for Linux, as an insurance policy against Windows 8. I think that will lead to a self-fulfilling prophecy. If more games are available for Linux, demand for Linux will increase, along with market share.

There’s historical precedence for this. Read more

Dave Farquhar

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This Linux Mint box looks really nice, except for the price

Dave Farquhar Hardware, Linux June 27, 2012June 25, 2012android, apple, dell, hp, Linux Mint, ubuntu

Linux Mint (a close cousin of Ubuntu) now comes bundled on a nice-looking small form factor PC–a small metal box, comparable in size to a home router, ideal for connecting to a television to use as an HTPC and/or as a secondary PC.
Read more

Dave Farquhar

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Unix-to-Windows copies with PSCP

Dave Farquhar Linux, security, Windows March 12, 2012firewall, JPG, PNG, SQL, SSH, unix

I’ve been moving files between Linux servers, and to and from Windows boxes, as part of my server migration. I started to write about how I’ve been doing it, but it seemed oddly familiar.

Yep, I’ve written about SCP and its Windows port, PSCP, before. Do this long enough and you find yourself repeating yourself.

Dave Farquhar

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