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David Farquhar is a computer security professional, entrepreneur, and author. He has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.

Trolling the web for nothing in particular

Dave Farquhar Linux February 19, 2002November 3, 2025Bob Costas, Bud Selig, debian, eye candy, hp, jetdirect card, Major League, Major League Baseball, red hat, Red Hat Linux, spam, unix

Yes, Brian, baseball will soon return. I hate the things Major League Baseball does (Bob Costas once likened choosing sides between the players and the owners to choosing sides between Iran and Iraq), but we’ve chosen to stay together for the kids. I’m sure everyone who cares (and some who don’t) can guess what I think of Bud Selig, but I’ll tell you anyway, soon enough.
In the meantime, I look like Ars Technica today. Oh well. I don’t do this very often.

Blogging. Wired News had its take on the phenomenon, and threw out some interesting stats.

In January alone, at least 41,000 people created new blogs using Blogger, and that number is always increasing, [Blogger founder Evan] Williams said. Some have put the total number of weblogs at more than 500,000.

Alongside the boom, however, there have recently been a few faint signs of backlash. As increasing hordes take on the task of trying to keep new sites looking nice, sounding original and free from banalities, more hordes just seem to fail.

Blog critic Dave Linabury offered a recipe for success:

“It really can take a lot of time,” he said. “I spend two hours a day on my weblog. Many people don’t realize this, they think it’s a quick way to get popular. And after awhile they get really discouraged and say, ‘he got 2,300 hits today, I got four.’ The bulk of people out there get less than two dozen hits.”

“I don’t want to be elitist,” Linabury added, “but all these people out there with popular weblogs, they’ve been doing it longer and they stick to their guns.”

I can attest to that. The people who get more traffic than I get almost all have been doing this longer. But I can tell you one thing: It’s never enough. Back when I was getting 80 visits a day I wanted 150. When I was getting 150 visits a day, I wanted 250. Now that I get about 500 visits a day, I’m awfully distressed to see people are getting 2,300. And by the time I reach 2,300, I’m sure there will be people getting 5,000 or even 10,000. (Note that visits are the number of unique visitors; hits are the number of files served up. Hit count is deceptive. I get 500 visits per day but closer to 1,000 or even 1,500 hits per day, due to people visiting, reading comments, and then often reading something from a previous week. And if they do a search, that’s at least two additional hits.)

Another feather in Internet Explorer’s cap. To my knowledge, no new security vulnerabilities have been reported in Internet Explorer this week, but the newest security patch, released last week, contains a bug that can cause a VBscript directive that previously worked to crash the browser.

Microsoft says Webmasters need to modify their pages not to use the directive.

That’s nice (I don’t use VBscript on this site) but there are embedded devices, such as HP’s JetDirect card, that use the directive. So early adopters of this patch may find themselves unable to do their jobs.

Better webmaster recommendation: Don’t use VBscript or ActiveX or other Microsoft-owned languages in your Web pages at all. Better end-user recommendation: Use Mozilla or a derivative instead of Internet Explorer.

Recompiling Debian for your hardware. This thread comes up every so often, and with the popularity of Linux From Scratch and Gentoo, the appeal of a compiled-from-scratch Debian is undeniable. But does the small speed improvement offset the increased difficulty and time in upgrading?

The consensus seems to be that recompiling gzip, bzip2, and gnupg with aggressive options makes sense, as does recompiling your kernel. Recompiling XFree86 may also make some sense. But expending time and energy in the perfectly optimized versions of ls and more is foolhardy. (Especially seeing as speed demons can just get assembly language versions of them from www.linuxassembly.org.)

A Guide to Debian. This is a guide, still incomplete, that gives a number of tips for someone who’s just installed Debian. The tips are applicable to other many other Linux (and even Unix) flavors as well.

Spam. A coworker walked into my cube today and asked me how he could keep web robots from harvesting e-mail addresses from his web site. I found myself referring once again to the definitive piece on the subject, from Brett Glass (who gets my nomination for the greatest computer columnist of all time, for what that’s worth).

The RULE project. A project has emerged to bring Red Hat Linux back to its roots, and allow it to run on older, less-powerful hardware.

From their site:

This install option is meant to benefit primarily two classes of users:

* GNU/Linux newbies who cannot afford modern computers, but still need, to get started more easily, an up to date, well documented distribution.
* System administrators and power users who have no interest in eye candy, and want to run updated software on whatever hardware is available, to minimize costs, or just because it feels like the right thing to do.

I love their FAQ. Check this out:

1.0 Hardware is so cheap today, why bother?

1. This is a very limited and egoistic attitude. Eigthy per cent of the world population still has to work many months or years to afford a computer that can run decently the majority of modern, apparently “Free” software.
2. Many people who could afford a new computer every two years rightly prefer to buy something else, like vacations, for example…. Hardware should be changed only when it breaks, or when the user’s needs increase a lot (for example when one starts to do video editing). Not because “Free” Software requires more and more expensive hardware every year.

These guys have the right idea. I can only hope their work will influence other Linux distributions as well.

Linux uptime. (Sure, a little original content.) When I was rearranging things months ago, I unplugged the keyboard and monitor from my webserver, then I never got around to plugging them back in because I didn’t have to do anything with it.

The other day, I had occasion to plug a keyboard and mouse back into it. I went in, did what I wanted to do, then out of curiosity I typed the uptime command. 255 days, it told me. In other words, I haven’t rebooted since last May, which, as I recall, was about when I put the machine into production.

Linkfest Friday…

Dave Farquhar General February 15, 2002April 15, 2017apache, apple, debian, hp, IBM, journalism, markup, Missouri, mysql, oracle, PHP, red hat, SQL, university of missouri, unix

Let’s start things off with some links. Web development’s been on my mind the last few days. There’s a whole other world I’ve been wanting to explore for a couple of years, and I’ve finally collected the information that’ll let me do it.
Redirecting virus attacks — Your neighbor’s got Nimda? Here’s how to get his IIS server to quit harassing your Apache server. (Suggests redirecting to a bogus address; I’m inclined to redirect either to 127.0.0.1 or www.microsoft.com, personally.)

DJG’s help setting up MySQL. Apache, MySQL and PHP are a fabulous combination, but bootstrapping it can be a painful process. People talk about writing a sendmail.cf file as their loss of innocence, but I’ve written one of those and I’ve tried to set up the LAMP quartet. The sendmail.cf file was easier because there’s a whole lot more written about it.

Short version: Use Debian. Forget all the other distributions, because they’ll install the pieces, but rarely do they put the conduits in place for the three pieces to talk. It’s much easier to just download and compile the source. If that doesn’t sound like fun to you, use Debian and save some heartache. If you’re stuck with the distro you have, download ApacheToolbox and use it. You’ll probably have to configure your C/C++ compiler and development libraries. That’s not as bad as it sounds, but I’m biased. I’ve compiled entire distributions by hand–to the point that I’ve taken Linux From Scratch, decided I didn’t like some of the components they used because they were too bloated for me, and replaced them with slimmer alternatives. (The result mostly worked. Mostly.) You’ve gotta be a bit of a gearhead to take that approach.

Debian’s easier. Let’s follow that. Use this command sequence:

apt-get install apache
apt-get install php4-mysql
apt-get install mysql-server

Next, edit /etc/apache/httpd.conf. There’s a commented-out line in there that loads the php4 module. Uncomment that. Just search for php. It’ll be the third or fourth instance. Also, search for index.html. To that line, add the argument index.php. If you make index.php the first argument, access to PHP pages will be slightly faster. Pull out any filetypes you’re not using–if you’ll never make an index page called anything but index.html or index.php, pull the others and Apache will perform better.

Got that? Apache’s configured. Yes, the php installation could make those changes for you. It doesn’t. I’m not sure why. But trust me, this is a whole lot less painful than it is under Red Hat.

But you’re not ready to go just yet. If you try to go now, MySQL will just deny everything. Read this to get you the rest of the way.

Once you’ve got that in place, there are literally thousands of PHP and PHP/MySQL apps and applets out there. If you can imagine it, you can build it. If HTML is a 2D world, PHP and MySQL are the third and fourth dimension.

Am I going to be playing in that world? You’d better believe it. How soon? It depends on how quickly I can get my content whipped into shape for importing.

This is the holy grail. My first editing job was doing markup for the Digital Missourian, which the faculty at the University of Missouri School of Journalism believe was the first electronic newspaper (it came into being in 1986 or so). By the time I was working there in the late summer of 1995, it had been on the ‘Net for several years. About eight of us sat in a room that was originally a big storage closet, hunched in front of 486s, pulling stories off the copydesk, adding HTML markup, and FTPing them to a big Unix cluster on the MU campus. We ran a programmable word processor called DeScribe, and we worked out some macros to help speed along the markup.

No big operation works that way anymore. There aren’t enough college students in the world. You feed your content to a database, be it Oracle or IBM DB2 or Microsoft SQL Server or MySQL or PostgresSQL. Rather than coding in straight HTML, you use a scripting language–be it PHP or ASP–that queries the database, pulls the content, applies a template, and generates the HTML on the fly. The story goes from the copy editor’s desk to the Web with no human intervention.

There are distinct advantages to this approach even for a small-time operation like me. Putting the content in a database gives you much more versatility. Some people want overdesigned Web sites. Some want something middle-ground, like this one. Others want black text on a gray background like we had in 1994. You can offer selectable formats to them. You can offer printer-friendly pages. You can even generate PDFs on the fly if you want–something some sites are doing now in an effort to gain revenue. If you have content from various sources, you can slice and dice and combine it in any imaginable way.

I can’t wait.

Optimizing a Linux box in-place

Dave Farquhar General February 13, 2002September 30, 2010apache, compaq, firewall, hp, mysql, PHP, red hat, Red Hat Linux, unix

Here’s the Linux bit I promised yesterday. I wrote it much earlier, so I might as well throw it out there.
Our test firewall at work is an old Pentium-200 running Red Hat Linux and a commercial firewall app. (No, I won’t disclose which one. Security, you know.) It’s a bit slow. A P200 is severe overkill for the firewall built into the Linux kernel (Steve DeLassus and I made a firewall out of the first PC he ever bought, a 486SX/20 of 1992 vintage, which, save the loss of the original power supply in an electrical storm, has never required any service), but this commercial package does a lot more than the simple firewalls built into Unixish kernels do.

It had 72 megs of RAM in it and swapped mercilessly. Its speed seemed to be OK once it was booted, but seeing as this is a testbed, it tends to get rebooted an awful lot. I needed to do something for it.

So I trekked into the PC graveyard to see what I could dig up. I found a Compaq 386DX/20. I left that alone. That’ll be useful if I ever need to pillage a pair of Compaq drive rails, which has happened before. Unfortunately those rails are worth more than the rest of the computer. I also spotted a Mac SE. That’ll be handy if I ever need a doorstop. Then I found a Pentium-75 and another Pentium of unknown speed. I opened them up. The 75 had a pair of 16-meg sticks. I opened up the unknown Pentium and looked inside. Ugh. Socket 4. That meant it was a Pentium-60, or, at best, a Pentium-66. It had a pair of 8-meg sticks.

I pulled the memory sticks out of the 75. The 60 didn’t have anything usable in it, save a pair of hard drives, both 540 megs, one a Quantum and the other a Seagate. I took the Seagate because it was easier to unbolt. I don’t have any way of knowing at this late date which of those drives was the better performer, and it probably doesn’t make much difference anymore.

The idea was to add some memory, and put in a second hard drive dedicated to virtual memory. Since the likelihood of the machine needing to read data from a drive and simultaneously hit virtual memory was fairly high, I wanted the virtual memory on its own drive. Furthermore, Linux’s partition-read
mechanism isn’t terribly efficient. This doesn’t matter for SCSI drives, which re-order I/O events, but for IDE drives it matters a lot. So getting the swap partition onto a dedicated drive was likely to improve performance a fair bit. (If this were a production system, it would probably have a SCSI
drive in it.)

So I swapped in the 16s for the 4s and found an empty bay to hold the 540, which I put on the second IDE channel as master (another performance trick), and booted Linux. The next trick is to use your favorite disk partitioning tool (I like cfdisk, but I can navigate plain old fdisk) to blow away whatever partition is on the new drive (this one was /dev/hdc) and create a single partition. I just made it the size of the drive, since 2.4 can deal with large swap partitions and Linux is smart enough to use whatever virtual memory it needs, not just automatically use all it has available. Then I set
it to type 82. Linux can do swapfiles, but a filesystemless dedicated swap partition gives better performance.

Next, I edited /etc/fstab. I found an entry for the swap partition pointing at /dev/hda2. I changed that to /dev/hdc1. That means I now have a small swap partition just sitting on the first drive unused, but that’s not a big deal to me. The system’s not using the disk space it has. While I was there, I noticed the CD-ROM drive was pointing at /dev/cdrom. I asked Charlie, our Unix/Linux guru, if Red Hat had some intelligence I didn’t know about. He said /dev/cdrom was just a symlink. I changed the entry to read /dev/hdd, which is where the CD-ROM drive ended up after my shuffle. Better to just code things directly than try to track symlinks, in my estimation.

Next, I issued the command mkswap /dev/hdc1 to initialize the swap partition. Then I rebooted and listened.

Indeed, during boot, the second drive was getting activity. I logged in and ran top, then hit shift-M to have a look at memory usage. The firewalling software was eating up a lot. But swap usage was down.

I decided to try cutting memory usage down a little more. I loaded /etc/inittab into vi. Red Hat by default gives you six virtual consoles. This machine has little need for more than two. Pulling the extras saves you a couple of megs. Near the end of the file you’ll see several lines that look something like this:

1:2345:respawn:/sbin/mingetty 38400 tty1

I commented out the last four of those. Hit the i key to put vi in insert mode, scroll down to those lines, add a # to the beginning of them, then hit ESC, then hit ZZ (shift-Z twice) to rapidly save the file, no questions asked. (I know, vi ain’t friendly, but it’s there.)

Then I had a look at /etc/rc3.d to see what daemons were running. I found apmd, sendmail, and gpm running. That was a waste of a couple megs, not to mention a possible security risk. I vaguely remember all three of them having had security issues in the past, and sendmail is one of those programs that should never be running unless you need it. Yes, this machine’s just practice, but Hall of Fame catcher Johnny Bench found that if he got sloppy and just let wild pitches go while he was warming up pitchers, he wasn’t as sharp at blocking potential wild pitches during the game when
it counted. So he worked just as hard during practice as he did during the game. Now he’s considered the greatest catcher of all time.

So I applied the Johnny Bench principle and disabled them with the following command sequence:

mv /etc/rc3.d/S26apmd /etc/rc3.d/K26apmd
mv /etc/rc3.d/S80sendmail /etc/rc3.d/K80sendmail
mv /etc/rc3.d/S85gpm /etc/rc3.d/K85gpm

I rebooted to find memory usage down by about 4 megs and the system booted a little faster. It was also more secure.

Total downtime: About 45 minutes.

That was time well spent. I may end up having to just bite the bullet and get some memory, but the system will perform better with these changes no matter how much memory is in it. And, more importantly, performing this exercise made me notice something I hadn’t noticed before. It let me tighten up security.

Had I blindly just ordered some memory to put in the system, or a new PC, like some people unfortunately advocate, I wouldn’t have necessarily noticed that as quickly.

—
Speaking of Linux, I did finally get Apache, PHP, and MySQL all talking together on my church’s 486. I used phpWeblog, which is an awfully nice package. Pages load in an acceptable two seconds. I notice the machine is paging, so a little more memory will probably help that. It’s amazing that people are throwing away Pentium-class machines when even a 486 has enough power to be a decent intranet server.

Not everyone’s so fortunate as you and me. Give ’em to someone who can use them if you don’t want them.

Is Windows optimization obsolete?

Dave Farquhar General February 11, 2002April 17, 2017baseball cards, hp, infoworld, intel, LAME, Maxtor, optimizing windows, OSS, sp3, spyware, windows 2000

I read a statement on Bob Thompson’s website about Windows optimization, where he basically told a reader not to bother trying to squeeze more speed out of his Pentium-200, to spend a few hundred bucks on a hardware upgrade instead.
That’s flawed thinking. One of the site’s more regular readers responded and mentioned my book (thanks, Clark E. Myers). I remember talking at work after upgrading a hard drive in one of the servers last week. I said I ought to put my 10,000-rpm SCSI hard drive in a Pentium-133, then go find someone. “You think your Pentium 4 is pretty hot stuff, huh? Wanna race? Let’s see who can load Word faster.” And I’d win by a large margin. For that matter, if I were a betting man I’d be willing to bet a Pentium-200 or 233 with that drive would be faster than a typical P4 for everything but encoding MP3 audio and MP4 video.

Granted, I’ve just played into Thompson’s argument that a hardware upgrade is the best way to get more performance. An 18-gig 10K drive will run at least $180 at Hyper Microsystems, and the cheapest SCSI controller that will do it justice will run you $110 (don’t plug it into anything less than an Ultra Wide SCSI controller or the controller will be the bottleneck), so that’s not exactly a cheap upgrade. It might be marginally cheaper than buying a new case, motherboard, CPU and memory. Marginally. And even if you do that, you’re still stuck with a cruddy old hard drive and video card (unless the board has integrated video).

On the other hand, just a couple weekends ago I ripped out a 5400-rpm drive from a friend’s GW2K P2-350 and replaced it with a $149 Maxtor 7200-rpm IDE drive and it felt like a new computer. So you can cheaply increase a computer’s performance as well, without the pain of a new motherboard.

But I completely and totally reject the hypothesis that there’s nothing you can do in software to speed up a computer.

I was working on a computer at church on Sunday, trying to quickly burn the sermon onto CD. We’re going to start recording the sermon at the 8:00 service so that people can buy a CD after the 10:45 service if they want a copy of it. Since quality CDs can be had for a buck in quantity, we’ll probably sell discs for $2, considering the inevitable wear and tear on the drives. Today was the pilot day. The gain was set too high on the audio at 8:00, so I gave it another go at 10:45.

That computer was a Pentium 4, but that Pentium 4 made my Celeron-400 look like a pretty hot machine. I’m serious. And my Celeron-400 has a three-year-old 5400-rpm hard drive in it, and a six-year-old Diamond video card of some sort, maybe with the S3 ViRGE chipset? Whatever it is, it was one of the very first cards to advertise 3D acceleration, but the card originally sold for $149. In 1996, for 149 bucks you weren’t getting much 3D acceleration. As for its 2D performance, well, it was better than the Trident card it replaced.

There’s nothing in that Celeron-400 worth bragging about. Well, maybe the 256 megs of RAM. Except all the l337 h4xx0r5 bought 1.5 gigs of memory back in the summer when they were giving away 512-meg sticks in cereal boxes because they were cheaper than mini-frisbees and baseball cards (then they wondered why Windows wouldn’t load anymore), so 256 megs makes me look pretty lame these days. Forget I mentioned it.

So. My cruddy three-year-old Celeron-400, which was the cheapest computer on the market when I bought it, was outperforming this brand-new HP Pentium 4. Hmm.

Thompson says if there were any settings you could tweak to make Windows run faster, they’d be defaults.

Bull puckey.

Microsoft doesn’t give a rip about performance. Microsoft cares about selling operating systems. It’s in Microsoft’s best interest to sell slow operating systems. People go buy the latest and ~~worst~~ greatest, find it runs like a 1986 Yugo on their year-old PC, so then they go buy a Pentium 4 and Microsoft sells the operating system twice. Nice, isn’t it? After doing something like that once, people just buy a new computer when Microsoft releases a new operating system. Or, more likely, they buy a new computer every second time Microsoft releases a new operating system.

Microsoft counts on this. Intel counts on this. PC makers count on this. Best Bait-n-Switch counts on this. You should have seen those guys salivating over the Windows 95 launch. (It was pretty gross, really, and I didn’t just think that because I was running OS/2 at the time and wasn’t interested in downgrading.)

I’ve never had the privilege of working for an employer who had any money. Everywhere I’ve worked, we’ve bought equipment, then run it until it breaks, then re-treaded it and run it until it breaks again. Some of the people I work with have 486s on their desks. Not many (fortunately), but there are some. I’ve had to learn how to squeeze the last drop of performance out of some computers that never really had anything to offer in the first place. And I haven’t learned much in the past since I started my professional career in Feb. 1997, but I have learned one thing.

There’s a lot you can do to increase performance without changing any hardware. Even on an old Pentium.

First things first. Clean up that root directory. You’ve probably got dozens of backup copies of autoexec.bat and config.sys there. Get them gone. If you (or someone else) saved a bunch of stuff in the root directory, move it into C:My Documents where it belongs. Then defrag the drive, so the computer gets rid of the phantom directory entries. You’ll think you’ve got a new computer. I know, it’s stupid. Microsoft doesn’t know how to write a decent filesystem, and that’s why that trick works. Cleaning up a crowded root directory has a bigger effect on system performance than anything else you can do. Including changing your motherboard.

2. Uninstall any ancient programs you’re not running. Defrag afterward.

3. Right-click your desktop. See that Active Desktop crap? Turn it off. You’ll think you’ve got a new computer.

4. I am not making this up. (This trick isn’t in the book. Bonus.) Double-click My Computer. Go to Tools, Folder Options. Go to Web View. Select “Use Windows Classic Folders.” This makes a huge difference.

5. Turn off the custom mouse pointers you’re using. They’re slowing you down. Terribly.

6. Download and run Ad Aware. Spyware DLLs kill your system stability and speed. If you’ve got some spyware (you never know until you run it), Ad Aware could speed you up considerably. I’ve seen it make no difference. And I’ve seen it make all the difference in the world. It won’t cost you anything to find out.

7. Remove Internet Explorer. It’s a security risk. It slows down your computer something fierce. It’s not even the best browser on the market. You’re much better off without it. Download IEradicator from 98lite.net. It’ll remove IE from Win95, 98, ME, NT, and 2K SP1 or lower. If you run Windows 2000, reinstall, then run IEradicator, then install SP2 (or SP3 if it’s out by the time you read this). Then install Mozilla, or the lightweight, Mozilla-based K-Meleon instead. Need a lightweight mail client to replace Outlook Express? Give these a look. Run Defrag after you remove IE. You won’t believe how much faster your computer runs. Trust me. An Infoworld article several years back found that removing IE sped up the OS by as much as 15 percent. That’s more than you gain by moving your CPU up one speed grade, folks.

8. Reinstall your OS. OSs accumulate a lot of gunk, and sometimes the best thing to do is to back up your My Documents folder, format your hard drive, and reinstall your OS and the current versions of the apps you use. Then do all this other stuff. Sure, it takes a while. But you’ll have to do it anyway if you upgrade your motherboard.

9. Get a utilities suite. Norton Speed Disk does a much better job of defragmenting your hard drive than Windows’ built-in tool. It’s worth the price of Norton Utilities. Good thing too, because 90% of the stuff Norton Utilities installs is crap. Speed Disk, properly run, increases your disk performance enough to make your head spin. (The tricks are in the book. Sorry, I can’t give away everything.)

10. Get my book. Hey, I had to plug it somewhere, didn’t I? There are 3,000 unsold copies sitting in a warehouse in Tennessee. (O’Reilly’s going to get mad at me for saying that, so I’ll say it again.) Since there are 3,000 unsold copies sitting in a warehouse in Tennessee, that means there are about 3,000 people who don’t need to buy a new computer and may not know it. I don’t like that. Will there be an updated version? If those 3,000 copies sell and I can go to a publisher and tell them there’s a market for this kind of book based on the 2002 sales figures for my last one, maybe. Yes, there are things that book doesn’t tell you. I just told you those things. There are plenty of things that book tells you that this doesn’t. It’s 260 pages long for a reason.

Recent Microsoft OSs are high on marketing and low on substance. If Microsoft can use your computing resources to promote Internet Explorer, MSN, or anything else, they’ll do it. Yes, Optimizing Windows is dated. Spyware wasn’t known to exist when I wrote it, for instance. Will it help? Absolutely. I stated in that book that no computer made in 1996 or later is truly obsolete. I stand by that statement, even though I wrote it nearly three years ago. Unless gaming is your thang, you can make any older PC run better, and probably make it adequate for the apps you want to run. Maybe even for the OS you want to run. And even if you have a brand-new PC, there’s a lot you can do.

Like I said, I’d rather use my crusty old Celeron-400 than that brand-new P4. It’s a pile of junk, but it’s the better computer. And that’s entirely because I was willing to spend an hour or two cleaning it up.

Ho-hum.

Dave Farquhar General January 29, 2002April 17, 2017asus, excel, firewall, HO, hp, intel, ISO, Proxy server, red hat, syntax

Another day, another Outlook worm. Tell me again why I continue to use Outlook? Not that I ever open unexpected attachments. For that matter, I rarely open expected ones–I think it’s rude. Ever heard of cut and paste? It’s bad enough that I have to keep one resource hog open to read e-mail, so why are you going to make me load another resource hog, like Word or Excel, to read a message where the formatting doesn’t matter?
The last couple of times I received Word attachments that were important, I converted them to PDFs for grins. Would you believe the PDFs were considerably smaller? I was shocked too. Chances are there was a whole lot of revisioning data left in those documents–and it probably included speculative stuff that underlings like me shouldn’t see. Hmm. I guess that’s another selling point for that PDF-printer we whipped up as a proof of concept a couple of weeks ago, isn’t it? I’d better see if I can get that working again. I never did get it printing from the Mac, but seeing as all the decision-makers who’d be using it for security purposes use PCs, that’s no problem.

I spent the day learning a commercial firewall program. (Nope, sorry, won’t tell you which one.) My testbed for this thing will be an old Gateway 2000 box whose factory motherboard was replaced by an Asus SP97 at some point in the past. It’s got 72 megs of RAM. I put in an Intel Etherexpress Pro NIC today. I have another Etherexpress Pro card here that I’m bringing in, so I’ll have dual EEPros in the machine. The firewall has to run under Red Hat, so I started downloading Red Hat 7.2. I learned a neat trick.

First, an old trick. Never download with a web browser. Use the command-line app wget instead. It’s faster. The syntax is really simple: wget url. Example: wget http://www.linuxiso.org/download/rh7.2-i386-disc1.iso

Second trick: Download your ISOs off linuxiso.org. It uses some kind of round-robin approach to try to give you the least busy of several mirrors. It doesn’t always work so well on the first try. The mirror it sent me to first was giving me throughput rates that topped out at 200KB/sec., but frequently dropped as low as 3KB/sec.Usually they stayed in the 15MB/sec range. I cancelled the transfer (ctrl-c) and tried again. I got a mirror that didn’t fluctuate as wildly, but it rarely went above the 20MB/sec. range. I cancelled the transfer again and got a mirror that rarely dropped below 50MB/sec and occasionally spiked as high as 120MB/sec. Much better.

Third trick (the one I learned today): Use wget’s -c option. That allows wget to resume transfers. Yep, you can get the most important functionality of a download manager in a 147K binary. It doesn’t spy on you either. That allowed me to switch mirrors several times without wasting the little bit I’d managed to pull off the slow sites.

Fourth trick: Verify your ISOs after you download them. LinuxISO provides MD5 sums for its wares. Just run md5sum enigma-i386-disc1.iso to get a long 32-character checksum for what you just downloaded. If it doesn’t match the checksum on the site, don’t bother burning it. It might work, but you don’t want some key archive file (like, say, the kernel) to come up corrupt. Even though CD-Rs are dirt cheap these days and high-speed burners make quick work of them, there’s still no point in unnecessarily wasting 99 cents and five minutes on the disc and half an hour on a questionable install.

As for downloading the file in separate pieces like Go!Zilla does, there’s a command-line Linux program called mget that does it, but it doesn’t follow redirection and it doesn’t do FTP except through a proxy server, so I have a hard time recommending it as a general-purpose tool. When it works, it seems to work just fine. You might try mget, but chances are decent you’ll end up falling back on wget.

What on earth is going on?

Dave Farquhar General January 19, 2002September 30, 2010AOL, compaq, hp, IBM, intel, KDE, red hat, Red Hat Linux, time warner

AOL-Time Warner in talks to buy Red Hat? I found this this morning. It’s intriguing, but I can’t decide if a buyout would be a good thing or a bad thing. After all, Netscape was in decline when AOL bought it. It nosedived afterward. Obviously, the problem was twofold. When AOL acquired Netscape, they didn’t acquire all of its mindshare. Some of the most talented people got fed up and left. You can take Jim Barksdale or you can leave him. The loss of Marc Andreesen and Jamie Zawinski, though, was substantial.
The second problem was that AOL wasn’t serious about competing. They bought a browser technology and basically sat on it. Netscape 4.x was fundamentally flawed, as even Zawinski acknowledges, although I would argue it was no more fundamentally flawed than IE 4.x. The Gecko engine, on which Netscape 6.x is based, is solid technology, even though it took longer to get to market than anyone had hoped. Although Netscape 6.x won’t bowl anyone over, other browsers based on the technology, such as Galeon, are absolutely fantastic. But AOL chose to release a half-hearted browser with the Netscape name on it and continued to use the IE engine in its flagship product even after the favorable agreement with Microsoft that prompted AOL to do so in the first place expired.

That begs the question of what AOL would do with Red Hat if it owned it. Red Hat is still the big-name player in the Linux field, but Red Hat is concentrating on the server market. You can still buy Red Hat at retail, but on the desktop, Red Hat is arguably #3 in popularity now behind France’s Mandrake and Germany’s SuSE. Red Hat is the only Linux company that’s making money, but that’s largely by selling consulting. That’s not AOL’s core business. At this point, AOL is more of a media company than a technology company. Software just gives AOL more outlets to sell its media content. Consulting doesn’t do that.

The best possible scenario for a Red Hat buyout would be for AOL to, as Microsoft puts it, “eat its own dog food,” that is, rip out the infrastructure it bought from other companies and replace it with the technology it just developed or acquired. Since AOL is largely powered by Sun servers, it wouldn’t be terribly difficult to migrate the infrastructure to Red Hat running on Intel. Then AOL could give a big boost to its newly-acquired services division by saying, “We did it and we can help you do it too.” They can also cite Amazon’s recent successes in moving its infrastructure to Red Hat Linux. There is precedence for that; after AOL bought Time Warner, the entire company started using AOL for e-mail, a move widely questioned by anyone who’s used anything other than AOL for mail.

Of course, it would be expected that AOL would port its online service to Linux, which would create the truly odd couple of the computing field. AOL, meet sed and awk. Red Hat would certainly lose its purity and much of its credibility among the Linux die-hards. AOL would bank on making up the loss by gaining users closer to the mainstream. AOL could potentially put some Linux on its corporate desktops, but being a media company, an all-out migration to Linux everywhere within is very far-fetched.

To really make this work, AOL would either have to enter the hardware business and sell PCs at retail using its newly acquired Red Hat distribution and newly ported AOL for Linux and possibly an AOL-branded office suite based on OpenOffice, or it would have to partner with a hardware company. Partnering with a big name seems unlikely–a Compaq or an HP or an IBM wouldn’t do it for fear of retaliation from Microsoft. Sun has never expressed any interest in entering the retail computer business, and even though Sun loves to take opportunities to harm Microsoft, Sun probably wouldn’t cooperate with AOL if AOL replaced its Sun infrastructure with Red Hat Linux. Struggling eMachines might be the best bet, since it’s strictly a consumer brand, has a large presence, but hasn’t consistently turned a profit. But AOL could just as easily follow eMachines’ example, buying and re-branding low-end Far East clones and selling them at retail as loss-leaders, taking advantage of its lack of need for Windows (which accounts for roughly $75 of the cost of a retail PC) and making its profit off new subscribers to its dialup and broadband customers. A $349 PC sold at retail with a flashy GUI, decent productivity software and AOL is all the computer many consumers need.

The advantage to this scenario for everyone else is that AOL would probably dump more development into either the KDE or GNOME projects in order to give itself more and higher-quality software to offer. The official trees can either take these changes or leave them. Undoubtedly, some of the changes would be awful, and the official trees would opt to leave them. But with its 18 years’ worth of experience developing GUIs, some of the changes would likely be a good thing as well.

The more likely scenario: AOL will buy out Red Hat, not have a clue what to do with it, and Red Hat Linux will languish just like Netscape.

The even more likely scenario: AOL will come to its senses, realize that Red Hat Linux has nothing to do with its core business, and the two companies will go their separate ways.

Back to the old grind again.

Dave Farquhar General November 3, 2001September 30, 2010apache, Baseball Mogul, cigarettes, hp, mysql, pale divine, PHP, Windows XP

You are my addiction
My pleasure and my pain
You’re my infection
Disease, you burn my brain
–Pale Divine
That song was either talking about a girl or about cigarettes. I’m not sure which. But my addiction is something else. You’ll understand in a minute.

Conversation with Gatermann. “Something big came out this week,” I told him.

He took a few shots in the dark. Ridiculous things, like Windows XP.

“What are the necessities of life?” I asked.

“Women–“

“More important than women,” I said.

“More important than women!? What’s more important than the advancement of mankind?”

“You’re getting warm,” I said.

He stumbled around a really long time. He even said the settlement with Microsoft, which really got me going. Microsoft deserved to be run over by a steamroller. Very slowly. What they got wasn’t even a slap on the wrist. It was more like a warm caress. Excuse me while I gag. I dropped hints so he’d quit saying such repulsive things. It involves a computer but not an operating system. It’s not hardware, it’s software. Unfortunately, it only runs under Windows for the moment. Finally he started getting warm.

“Something to do with Railroad Tycoon?” he asked.

“Railroad Tycoon is indeed one of the necessities of life,” I pontificated. “You’re getting close.”

“More important than women and Railtycoon…”

“No, on par with Railtycoon,” I said. “And I’ll give you another hint. It’s not Baseball Mogul.”

He stumbled around some more.

“C’mon, Tom! What other games do I play?”

The answer is, of course, Civ3. I remember when I bought Civ2. The cashier was female, a year or two younger than me probably. “I love this game,” she said as she checked me out. Er, as she rang me up. I don’t know if she checked me out or not.

But because I’m a real dipstick, I didn’t propose to her on the spot. I didn’t even ask her out. Yeah I know. I coulda dated someone whose idea of a good time was a Civ bingefest.

Other stuff. If you ever put a parallel scanner on an NT4 workstation and run into all sorts of problems like bluescreens and service/driver failures at startup, check to make sure your parallel port and your sound card aren’t using the same interrupt. Better yet, get a real–I mean SCSI–scanner and use parallel ports for what they were designed. That’s printers, not Zip drives. If the interrupt’s free, the scanner will work, but you can forget about any other process getting any CPU time while you’re scanning.

I found a nice groupware app at www.phprojekt.com. It requires PHP, Apache, and MySQL. Not quite an Exchange killer but the price is sure right. And Exchange sure hurt Notes, because it’s cheaper, even though Notes is completely in another league.

And if someone complains about banner ads on your corporate intranet, check and see if Gator is installed. Then slap the hand of the dolt who installed it. (Probably the same dolt who went and bought a parallel scanner at CompUSA for 25 bucks and came in and told you to make it work.)

Linux and PC cubes

Dave Farquhar Hardware October 27, 2001November 3, 2025apache, apple, hp, intel, mysql, PHP, sgi

PC cubes! Yes, I want a cube-shaped computer, because it’s small. No, I don’t want one made by Apple, or an obsolete NeXT (I used those in college when I couldn’t get time on an SGI). I want something small and cheap, and if it’s reasonably good looking, that’s a bonus.
Enter the Shuttle SV24.

Unlike Apple’s cube, it has a brushed-alumninum case, so it won’t crack. Just like Apple’s cube, it generates extreme reactions, and not everyone who likes Apple’s cube likes Shuttle’s.

I admit, it doesn’t have Apple’s styling. But I like Lian-Li’s styling a lot better. I wouldn’t put this in Lian-Li’s league either. But it’s certainly no uglier than any of the PCs I own now, and it’s small and light. So yeah, it has me thinking.

Where can you get one? Two of my favorite vendors have it, at a price of $250: Newegg.com and Mwave.com.

I also saw on Ars’ forums that MSI makes a slimline PC called the 6215. Newegg has it (search for “6215”) for $210. It’s tiny, but has two PCI slots and is more conventional-looking. I’m thinking the 6215 would be great for a server appliance, seeing as it has two PCI slots so you could put a SCSI card in it. You could also disable the onboard Realtek NIC and replace it with a card like an Intel EtherExpress Pro that uses less CPU time.

More Linux. The biggest thing holding me back from migrating to SupaSite is its requirement of the Apache, MySQL and PHP trio. I’ve tried to get those three to work together before, and the setup wasn’t exactly trivial, especially when trying to do it from RPMs. It looks like it’d be a whole lot easier to just compile it yourself. But this past week I found Apache Toolbox, which downloads the source for those three, plus bunches of Apache modules and compiles them for you. It sounds like it even helps out with configuration. I’ve gotta give this one a shot.

Mail server successful!

Dave Farquhar General October 16, 2001April 18, 2017apache, hp, IMAP, mysql, PHP, spam, windows 9x

A lightweight Windows web browser. Windows!? What’s that? Yes, I still use it at work, even though my Windows time at home is dwindling. A couple of weeks ago I told you about Dillo, a superfast, minimalist Web browser for Linux that’s in development. It’s still considered alpha-quality; I’ve had absolutely no trouble with it but some readers report it crashes on them occasionally. I’ve had enough success with it that I want it at work.
Well, I didn’t get my wish exactly, but yesterday at work after following a link to a link to a link while looking for something else (you know how that goes–you never find what you’re looking for when you’re looking for it, on the Web or in real life) I found Off By One a free standards-compliant HTML 3.2 browser. Its executable is a full 1.1 megs in size. There are sites it won’t render quite right, because it lacks Java and JavaScript and it’s an HTML 4.0 and CSS world out there these days, but it’s the fastest browser I’ve ever seen on Win32. If I had to live with Windows 9x on a 486 or a slow Pentium, this is the browser I’d want.

A nice-looking Weblog package. I found a blogger on Freshmeat called Supasite. It doesn’t look like it does a nice calendar by default like Greymatter, but it does categories, natively. And it looks like nothing would stop me from changing the system date and putting in entries from way back when, so I could start moving content in from this site’s previous incarnations (including some stuff that hasn’t been online for most of this year). Greymatter breaks when you try to do that.

The downside? Setup is much more difficult, since it relies on PHP and MySQL, in addition to Apache and Perl.

Local mail server revisited. I figured out what I was doing wrong. To get exim, procmail, fetchmail, and courier-imap all working together, I had to do a couple more steps. First, I had to create a maildir for my non-priveliged account with the maildirmake command. Next, I created a .forward file:
# Exim filter
save $home/Maildir/new/

Next, I created a .procmailrc file:
MAILDIR=$HOME/Maildir
DEFAULT=$MAILDIR/new/
LOGFILE=$MAILDIR/Maillog

Then I ran fetchmail manually. It pulled down three messages from my SWBell account. I connected to the experimental server with Sylpheed and… I had mail! Suh-weeet!

Now if I can just get one of those canned spam filters running, I’ll be a very happy camper…