Diary of a Network Geek

Yesterday marked this blog’s ten year anniversary.

In ten years, I’ve made more than 1,700 posts and had more than 1,900 comments, many of those from years when I blogged almost every day.  But, it was ten years ago when I uploaded my first entry. I edited it in a text editor of some kind, probably Notepad, and used FTP to push it up to the server. That was back in the days before blogging software and when most of us still called them journals or diaries. I started doing it to try and game the search engines. Mostly, it worked, I think, since the majority of my readers have found me via a search of some kind.

Since that first entry, a lot has changed.
I’ve been through two different kinds of blogging software. After months of doing it by hand, I converted to Moveable Type. I used that for several years, until the Time of the Troubles, when there was a big fuss over how Moveable Type was going to charge for previously free software, even after promising to keep it free forever. Like most converts, I changed over to WordPress, which I still use today. Moveable Type does have a free version, but, frankly, after learning how easy it was to style and customize WordPress, I can’t imagine moving back. Not to mention how much easier it is to make plugins for WordPress. Frankly, I love it.
Ten years ago, I did quite a few entries from the road via my old Palm IIIc with a folding keyboard. I typed them up and then synced that with my PC and pushed the entries from there. That old IIIc doesn’t hold a charge too well any more, but I’m still using the same PC I was ten years ago. Of course, I’ve added a much newer laptop, several other machines, and an iPhone to my technological stable since then. In fact, I was a beta tester for the new iPhone WordPress app!

A lot of other things have changed, too.
For one thing, I married and subsequently divorced the woman I was living with at the time. I’ve changed jobs, count it, five times, finally staying at my current company for about five years. I survived cancer. But, ironically, after several ups and downs with weight, I’m probably in better shape now than I was ten years ago!
Sure, I’d have liked to had a few more dates in the past ten years, but, I think I’ve done okay considering the divorce, not to mention the less than stellar marriage and, you know, the cheating death and all.  You’d be surprised how tired you get dodging the Grim Reaper!

I’ve upgraded my Novell certification at least once in that time as well as added a Linux certification.  My original plan of using this blog to boost my rankings in the search engines has largely paid off, as I’m consistently the number one or number two hit on Google for the search term “network geek”.
In that time, I’ve taught myself Perl, which is a scripting/programming language that’s been called the “duct tape of the Internet”.  In fact, as of this post, I’m a Level 8 PerlMonk.  (It’s a geek thing.) I’ve also gotten reasonably proficient at PHP, since that’s the technology which makes WordPress go.  At least, I’ve gotten good enough to write a few simple plugins and even a rough theme.  Frankly, I hope to do more of that soon, too.

I’ve taken up photography since starting this blog, too, and I think I’ve gotten fairly good at it.  Naturally, there’s room for improvement, as I’ve only been doing it for about two years, but, still, it’s something I’ve wanted to do for a long, long time.  I’m not very artistically skilled, but photography lets me tap into that in a less intimidating way.  I suppose, in a way, so does my obsession with blog themes and logo design.

And, of course, I’ve started several other blogs or websites in the ten years that I’ve had this blog.  But, don’t worry, those sites have been languishing just as badly as this one has the past several months.  It’s not that I haven’t wanted to write, or even had things to write about, but I’ve just been too busy to sit down and do it.
Though, I do have to admit, part of that sort of writer’s block has been about my audience.  I mean, if you hit that search function over in the sidebar, you can get pretty interesting access to my life for the past ten years.  Oh, sure, not everything makes it into the blog, but I’ve been pretty candid posting here.  I try to keep it clean, mostly, and nothing that would embarrass my mother, but, I have been honest enough to shock a few friends.  So, if there’s something you want to know about me, just search for it.  You may be surprised what you find here!

So, wow.
It’s been an interesting experience blogging for the past ten years.  I started before the trend was as huge as it was and kept on even when the shine had worn off for many.  I can say for sure that I didn’t anticipate many of the twists and turns this blog took over the past ten years, much less my life, but it has been an interesting ride.  Many of you have been with me for quite some time now and I appreciate you reading along with me here.
I don’t know what the next ten years will bring here, or elsewhere in life, but I do hope you’d come along for the ride.  I’m sure it will be as big a surprise to me as it is to you!

A pretty bold statement, isn’t it?

Well, I’m not going to tell you how to build the “ultimate home network”, but, rather, suggest some things that you may want to consider to build your own, personal, “ultimate” home network.  Everyone needs something different from a home or small office network.  Some of us have side jobs that require a fair amount of data transfer or storage, like, for instance photographers.  For some of us in the IT business, having a home “test” network is almost assumed, though, perhaps not as much as it used to be in the boom days of the Internet.
I’ve been thinking about it this past week because my old BorderManager firewall finally has died.  I’m using a backup firewall at the moment, which is “good enough”, but I’ll be taking this crash as an opportunity to start rebuilding my home network from the ground up, using mainly free, open source software, starting with a Linux firewall.  In fact, I have three that I’ll be looking at and, yes, writing reviews of, in the coming weeks.  This will be an on going series of posts, too, as I evaluate software and, piece by piece, integrate it into my working, live network.  My needs will probably be different than yours, but all home networks will have some similar items and considerations.
So, what should go into your own personal, “ultimate” home network?  It depends on what you do, but here are some ideas.

The Actual Network.
Obviously, the first thing is setting up the actual, physical network.  And, in this case, by physical, I’m including wifi routers and the like.  Back in the old days, having a home network meant running cable.  That’s not as true as it used to be, but don’t just go wireless without considering at least some wired connections.  If you’re concerned about security, for instance, especially, regarding financial transactions, nothing is as secure as a wired connection.  Keep in mind, though, that at some point you still connect to an outside source to get to your bank.  Also, since most laptops have built-in wifi and have gotten so inexpensive, if you don’t already have one, consider getting a laptop.  For most people, laptops can inexpensively do everything we need to do and have the advantage of portability, so if you need to leave, say in case of a hurricane, you can take at least part of your home network with you.
There are a wide range of network switches and routers out there to choose from, but I suggest sticking with a name brand that is relatively well known and established. It’s no guarantee that you won’t have problems, but it’s a good start. I personally like Linksys and DLink brands, but there are many others that will work well, too.

Security.
Don’t forget that you need to have at least some security on that home network.  At a bare minimum, you need a firewall and some kind of antivirus.  If you’re connecting to broadband internet, either cable or DSL, most often the router they give you from the service you use has a firewall on it.  If you’re using wifi, the wifi router almost certainly has a firewall on it.  Use them!  Most importantly, actually set them up and change the default password to something else that you’ll remember but that strangers won’t guess.  If you’re not sure if you have a firewall on your network equipment, then at least use the built-in Windows firewall, but use something!
If you don’t want to spend big money on either McAfee or Norton for antivirus, good news!  You don’t have to spend anything!  Yes, that’s right, you can download AVGFree and run it for nothing at all.  So, now, what excuse do you have to not be running some kind of antivirus again?
And, please, for your own sake, use passwords.  Use hard to guess passwords, not your kids names or your birthday or even your license plate number.  In fact, try not to use dictionary words at all, or, if you do, substitute other characters for letters, like $ for S or @ for A, to make it more difficult to guess.  Also, use numbers with the letters, for the same reason.

Networked Storage.
Just having storage isn’t enough, really.  On a home network now, you may have a laptop, or two, a desktop, a DVR or any number of different networked devices that share data.  They all need to store it somewhere.  And, even if they store the data locally, they need to be backed up somewhere.  The answer is network based storage.  There are a lot of options out there, and Rick Vanover at TechRepublic has a good article on several.  I know one solution that’s popular with photographers is the Data Robotics Drobo series of devices.  I don’t have any direct experience with these, so I have no opinion on them specifically, but these days, decent network attached storage is so cheap, it would be foolish to ignore that as an option.

Virtual Server Environment.
Now, obviously, this isn’t for everyone.  Back in the day, I used to run a small, two server Novell network in my house just to keep everything fresh in my mind.  Novell isn’t always the most popular networking environment, even for hard-core network geeks like me, so I always wanted to make sure I knew how to do some of the more “interesting” and challenging things in that environment and ran a test network at home for that reason.
Now, you can do all that through virtualization.  In fact, that may be the newest buzzword that’s already worn thin on me!  But, buzzword or not, setting up a virtual test network is something that’s been talked to death in the industry, but I’ve only seen one article recently on setting up a home virtual test network.  You can read more about it in an article by Brad Bird over at TechRepublic, but, again, for those of us who work in a lot of different environments, it’s not a bad idea to make a series of virtual machines to experiment on.  There are still some hardware costs involved, of course, but there is the advantage of being able to roll back to an earlier state if something gets too screwed up.  Try that on your old-fashioned home network!

Even Fancier Stuff!
Of course, there’s almost no limit to what you can do on a home network these days.  Many inexpensive printers come with network interfaces built in, some even have wifi networking built in.  Of course, I’ve mentioned things like Windows Home Server and Linux servers here before, too.  It is, after all, what I do.  Though, with the low prices on network attached storage, I’m not sure I’d recommend that option for the average user.
And, this post hasn’t even touched on integrating any audio visual equipment into your network, or a home security system, or some of the fancier bells and whistles that are out there.  The sky, literally, is the limit.

So, the thing is, everyone will have a different idea of what the “ultimate” home network is, but these are some things to consider, and a few you don’t want to forget.

So, I’ve been thinking about getting yet another professional certification.

I’ve been a Certified Novell Engineer for about fifteen years now.  In fact, I upgraded that cert three times after initially certifying back in 1993.  In 2003, I got the CompTIA Linux+ certification.  All at more or less my own expense.  Now, I haven’t heard anything about Novell updating their certification requirements lately, but I suppose it might happen one day.  I don’t think I’ll pay to re-up that cert, though.  I haven’t really used Novell in any significant sense for about five years now, so there’s not much point in maintaining it.
The lack of continuing education requirement is one of the things I liked about getting the CompTIA Linux+ certification.  One test, one cert, for life.  It seemed like a good idea to me, a good investment.  About the time I ended up getting divorced, I gave up on studying for the CompTIA Security+ certification.  There seemed plenty of time.  Well, as it turns out, there may not be after all.

Earlier this year, CompTIA announced that there would be continuing education requirements for several of their certifications.  Well, the great mass of IT professionals raised such a hue and cry about it that they modified that stance somewhat.  We not have until the end of this year to get the certifications if we want to escape the re-up requirements.  That goes for the A+, the Network+ and, yes, the Security+ certifications.
So, it looks like I’ll be buying the Exam Cram Security+ book and, probably, investing in the SelfTest Software pre-exam study software, too.  It’s not that big an investment monetarily, but I suspect it will be a little more difficult to knuckle down and study to take the test.  I haven’t worked at that sort of thing for quite some time now, and I’m almost afraid I’ve forgotten how!

Of course, the real question is, in a way, whether or not it’s even worth getting the certification at all.  I mean, it just sucks me even deeper into the bottomless pit that is the IT profession.  It’s a never-ending treadmill of oppressive hours and thankless work that few people truly appreciate.  Of course, it does pay pretty well.  And, it does beat digging ditches.  Most days.
Naturally, my hope is that the Security+ certification will make me more marketable in the long-term, should something happen to my current job.  Not that I think that’s likely, but still, it never hurts to be prepared.  And, frankly, security is going to continue to be a big issue going forward, so getting this particular certification surely can’t hurt my resume any.

Over all, the investment is small for the potential return.  And, it will probably do me good to stretch my poor, feeble, little mind to work at something like this again.
Besides, I may know a beautiful, young college student or two who could help me study.
Stranger things have happened!

What?  Doesn’t every one run servers at home?

Okay, so maybe not everyone does, but some of us hard-core geeks do.  And, some of those hard-core geeks are Lifehackers, too.  Thanks to that group of obsessed efficiency geeks, I can bring you a link to the Lifehacker Best Home Server software packages.  I can’t say that I’ve really worked with any of these, so I can’t chime in on which is best, but certainly the Lifehackers have done their research and left their comments.  If you’ve been thinking about setting up server for the family, this would be a good place to start.

And, if you want to add a DIY firewall, try hitting this article on TechRepublic about setting up a free pfSense firewall.  It’s Linux based, but I can’t vouch for it.  The author seemed to think a lot of it, though, so I’d be interested in what anyone thinks of it.  If you try it, give me a shout and we can talk about doing a guest post/review.

Okay, maybe it’s more than a little random…

Here’s the thing, see, I spend a lot of time doing all kinds of weird stuff at the office.  I mean, I almost never have the same kind of day twice.  Really, the most consistent thing I do is go to lunch at more or less the same time every day.  Seriously.
But, along the way, I end up with some strange things in my browser.  All work related, of course, but, still an odd collection.  Here are a few things I found hanging around this week:

First, an article from TechRepublic about monitoring your network with a utility built into most, if not all, Linux distros called “ntop”.  Basically, it runs in the command shell and shows you were the network traffic your Linux machine can see is going.  Obviously, this is most useful if you use Linux for a firewall or gateway machine, since that would let you monitor pretty much all internet traffic.  Also?  Once you start it on that machine, you can get to it remotely via a browser to check the stats.  All for free.  Pretty cool.

Next, there’s another article on TechRepublic about resolving all those mysterious IP addresses into a physical location.  So, when you see that “special someone” trying to crack your home router, you can trace back to pretty close to where ever they are.  And, yes, for those of you who were readers back when I went through my divorce, that’s how I found out my ex-wife and her latest victim were following my blog.

But, if that wasn’t enough, here’s a third article from TechRepublic about a peer network monitoring tool that looks good.  One thing I liked about this was that it didn’t seem to need much special to run it, but it still had what looked like good notification tools.  If anyone has any opinions on it, or any of the other tools I’ve listed, please, feel free to add them into the comments.

And, last, but certainly not least, is a page of free web development tools from Microsoft.  Honestly, I have no idea how good these things are, but, hey, they’re free and they come from Microsoft, so, I figure they’re worth downloading.  I’ll probably never use them myself, but there’s no reason I shouldn’t share them with my readers.

So, yeah, these are all things that have been flying around in my browser at work for the past week or so.  Sometimes it’s great to be a generalist, because I never know what challenge I’ll be asked to meet next, but sometimes, it’s just exhausting!

Anyway, happy Wednesday and enjoy the links!

No, I haven’t done it. Yet.

But, when I do, I probably won’t end up using MythTV, like I thought I would. Rather, I think I’ll be using BoxxeeBox. Where MythTV is geared toward making a DVR, like Tivo, BoxxeeBox is more geared toward making home theater/multimedia machine, which is really what I want.

So, yeah, there are options.  Check this one out if you’re thinking about building a home theater machine.  It’s worth considering.

(And, yes, I’m trying to clean out old posts that have been lingering as drafts again.  New Year and all.)

So, last month, I was talking about rolling your own distro.  This week, it’s rolling your own LiveCD.

Over at TechRepublic, they ran an article on using some tools built into Ubuntu to make your own, custom Ubuntu LiveCD.  For those of you not in the know, a “LiveCD” is a bootable version of an operating system, in this case Linux, that will run from the CD without installing on the workstation.  It’s a great way to try out a new operating system or bring a portable, emergency software toolkit with you without damaging or changing a PC.

The tool, for my fellow wireheads, is called Reconstructor and the article pretty well takes you through step-by-step on how to do it.  Well worth the read if you’re a Linux geek, most especially if your distro is Ubuntu.

Well, okay, maybe not non-geeks, but non-network-geeks, at least.

As many of you well know, I am almost always pressed for time. That’s partly due to my work, which seems to include more and more front-line support and less and less networking coolness. It’s just the way things go. In any case, …

So, don’t be intimidated by this. You can diagnose most of your own network problems. Just head on over to the Linux Journal’s website, where Mike Diehl has written a pretty comprehensive article on Troubleshooting Network Problems. Oh, and don’t let the fact that it’s on a Linux website throw you, he has tips for Windows users, too.

Okay, it’s not quite Apple’s Time Machine, but close.

Mac users know all about Time Machine. It’s a really great feature of OS X that makes small, incremental backups of your system. It lets you roll back changes to both system and data files to a particular time and day. The backups work pretty quietly and seamlessly, too. I have to admit, it’s one of the coolest features of OS X.

Well, if you’re a Linux user, now, you can get the same thing, more or less. It’s called Back In Time, and it requires a little more knowledge and setup, but the idea is basically the same. Oh, and it’s free, but if you all use it, and like it, they do as for donations to support their efforts.

If you use Linux, it’s worth checking out.

(And, yes, I know I’m late and this is not the post I talked about at the Geek Gathering Friday night.  I also overslept by an hour this morning.  I think it’s going to be a long week.)

My regular readers all know how much I love Linux.

Okay, I’ll admit that I don’t run it as my main OS, but I love it for servers. Truly, truly, I do. I use it for all kinds of things, including my own, home-grown imaging system. Sure, it’s not Novell’s ZENWorks, but it does work pretty well. Back in the days when everyone seemed to be coming out with their own specialized distribution, I always thought it would be fun to roll one of my own. Yeah, I know, I am such a geek!

Anyway, thanks to PC Plus, you can roll your own Linux distro. Hit the link to see their super-excellent tutorial.