Review: Nokia E72

January 15, 2010 jcostom Leave a comment

Nokia E72My trusty E71 finally took a dive for the last time onto a nasty floor.  I was using a Nokia N85 for a bit as a stopgap.  Great phone, fantastic camera, but typing email with T9 drove me nuts.  The N85 is now hosting my home phone’s SIM.  But this review isn’t about the N85, so back to the topic at hand..

Between the N85 and the E72, I tried out the Blackberry 9700, which was lovely, as much as a Blackberry can be, but lacked some of the features I liked, such as a working SIP stack, and especially the ability to tell when my data is moving through the corporate network/BES, vs. WLAN, vs. carrier data that’s not via the BES – I found that utterly impossible on the BB 9700.  Otherwise, a nice phone.  But again, back to the topic at hand.

First, I’ll start with the physical attributes of the E72.  The E72 is a tiny bit wider than the E71, but is the tiniest bit lighter than the E71.  The E72 trades in a good bit of the metal housing for plastic, but gets new & improved features like a 3.5mm headphone jack, instead of the 2.5mm mess that’s on the E71.  Radios are mostly equivalent to the E71.  Mine is the US variant, the E72-2, so it’s a quad-band GSM/EDGE device, with works on UMTS 850/1900/2100 Mhz bands.  The 2100 Mhz band is a nice addition to the device, for users who travel abroad, as is the support for HSPA 7.2 Mbps.  The WLAN in the E72 is essentially the same as the E71 – 802.11b/g. The camera is a nice bump in the E72 as well – a 5MP cam, a step above the E71′s 3.2 MP cam, with a single LED flash.

My favorite part about the phone?  The messaging experience.  At work, one of our options is Exchange ActiveSync, so I’ve been a Mail for Exchange user for quite a while now, even with its deficiencies, like the lack of ability to sync folders other than the Inbox, HTML support, and lack of ability to create a meeting request from the phone.  The device works with Nokia’s Messaging service, which I’m not using at this time.  For my personal mail (hosted by Google Apps), I use the Google Gmail app, which works just as well on the E72 as it did on the E71.

Overall, the E72 is a worthy successor to the E71.  Right now, Amazon’s got it for $369.  If you’re going to buy, please consider using my link to it.

Categories: featured, reviews, tech Tags: , , , , ,

Tech Predictions for 2010

December 29, 2009 jcostom 1 comment

It’s that time of the year again kids.. For some reason, I didn’t do this last year.  Here we go, my 10 predictions for technology in 2010.

1. Netbooks – huge.

You thought 2009 was the year of the netbook?  You ain’t seen nothing yet, kid. 2010 will bring a whole new crop of them, this time with the Nvidia ION chipset, allowing you to watch HD content on your little netbook.  We’ve already started seeing better screen resolutions like 1366×768 (instead of the older 1024×600), giving you greater than 720p on the display.  This will continue, though I don’t think you’ll see 10″ screens grow much more in resolution.  Apple’s rumored to release something early in 2010, possibly called iSlate, which will be a hybrid netbook/tablet device.

2. Home Virtualization

In 2009, with VMware ESXi being free, geeks started doing bare-metal virtualization more and more, dumping host-os solutions like VMware Server in favor of better performance.  This trend will accelerate in 2010, and we’ll see someone introduce a virtualization product targeted at the so-called “pro-sumer”.  It will be interesting to see if it’s specifically marketed as such.  What’s it for?  Aggregation of lots of different home network services onto a single hardware platform.  Maybe it’s all a dream for us geeks, but I think something will pop in 2010.  Remember, everyone said the same thing about NAS, and now those are everywhere too.

3. Gigabit Ethernet for everyone

People will stop buying routers and switches for the home that are only 10/100 devices.  The driving forces?  NAS and 802.11n.  As people replace old computers with new, they come with shiny stuff like 802.11n wifi cards instead of crusty old 802.11g.  This means a jump from 54 Mbps to 300 Mbps.  Obviously, 300 Mbps > 100 Mbps, and nobody wants to have access to their data on the NAS to be that slow.

4. Android Cleans House

I admit it.  I like Google.  I love the idea of a common-source OS that’s open for mobile devices.  I’ve got serious technolust for something running Android right now.  I’m doing my best to be patient though.  I want to see the latest batch of devices, hopefully with 1 Ghz Snapdragon processors and Android 2.1 first.  After that, if it’s got AT&T 3G bands and wifi, I’m in.  I predict that people will finally start falling out of iLove with their iPhones, though certainly not in droves, and move to a more capable platform that does “more.”

5. Another new iPhone

As it’s older siblings before it, it will be buzzword compliant, but probably only with stuff that isn’t cutting edge.  You’ll get your 5MP camera (that I had on a phone 2 years ago), you’ll get HSPA – but won’t be able to use it.  What’s the big prediction here?  New headphones that use Bluetooth, sort of like the ones that Nokia sells.  They’ll be optional, and work with the 3GS, but I’d bet they won’t work with the 3G and certainly not the original iPhone.  Nothing earth shattering, but they’ll be Apple-branded, and tightly integrated with the device, so you’ll see stuff like song titles and caller id info on an OLED display, possibly color, using buddy icons from your address book.

6. Another iPod Shuffle down-size

Because they’re not small enough, right?  This time, it will be a single piece of hardware, integrated into the headphones.  It will also see a price cut to $49 for a 4GB model.  Just an incremental change in the end.

7. More gigantic technological misnomers

Like LED TVs.  I had a discussion with someone not long ago who insisted that these were not LCD TVs, and were in fact LED TVs.  He just couldn’t get past the idea that the display technology is largely the same, possibly some incremental changes, but the real change is in the backlight.  LCD TVs that were purchased a couple of years ago were certainly backlit using fluorescent bulbs.  These “LED” TVs use LED bulbs for the backlight.  That’s the limit of the changes.  These are not self-illuminating screens like OLED or AMOLED.  Now an AMOLED screen – that would be HUGE.  What will the misnomer be about?  Who knows?  It’s coming though.

8. A “major” newspaper will fail to make it to 2011

We’ve been talking for years about the impending death of the newspaper, in favor of Internet-based news channels.  I think back to our experience with the local paper earlier this year.  We subscribed purely for the reason of getting coupons.  We subscribed to the weekend package (so Friday – Sunday).  Total cost was about $10 a month.  The problem?  We only netted about $5-6 worth of coupons per month.  After 2 months, we canceled the subscription.  Ad revenues are already in the toilet for newspapers, and will only continue to decline.  Ask not for whom the bell tolls, it tolls for thee, Mr. Newspaper Man.

9. Compressed hydrogen will start moving.

Sure, Honda’s got their prototype Accord going in California.  But, we’re going to start seeing a real compressed hydrogen delivery network being built.  Hydrogen is arguably one of the most abundantly available elements on Earth.  The vehicles emit water vapor as their exhaust.  Not so bad, eh?  Please, don’t confuse me with a climate change fruit loop.  I don’t subscribe to cooking the books in order to support my points, as is the case in the climate change circle these days.  But surely a car that emits water vapor can only be a good thing, when compared to a gas or diesel vehicle.

10. A usable water-based fuel cell

This thing is the big dream.  You fill it up with water, and the hydrogen is used to power the device.  It’s completely sustainable, and free to “recharge.”

Zombie Manger Scene – Christmas Creep at its finest

October 11, 2009 jcostom 1 comment
Christmas Creep

Christmas Creep

From the Shoebox Blog, of all places.  Go figure, eh?  Absolutely brilliant!

Categories: funny Tags: , , ,

Home Virtualization Project

October 9, 2009 jcostom Leave a comment

Virtualization FunnelAs some of you may know, though may or may not actually care, I was previously running my home server on Ubuntu Jaunty x86_64, and ran VMware Server 2.0 on it.  I had VMs for my SSL VPN and some occasionally used VMs for other things.

I was tired of performance that VMware Server offered, along with its baggage.  For instance, the Web UI suffered from frequent crashes, and it was also fairly slow.  Having had great success in the lab at the office with VMware ESXi, I decided that was the way to go.  ESXi 4.0 is still fairly new, and I’ve had some trouble with my SSL VM on it, so I decided to sit that one out for a bit, leaving me with 3.5u4.

Next hurdle – my hardware.  I use a Shuttle XPC for my server.  It’s small, and doesn’t inhale too much power, so I found it to be a good choice as a Linux server, what it’s spent most of its time as.  Unfortunately, as it uses a Marvell Ethernet chipset (the sky2 driver), and that’s not on the VMware HCL, there wasn’t a driver for it.  But then, KernelCrash to the rescue.  The author gives very nice build instructions to get a mod_sky2.0 driver that works on ESXi 3.5u4.  It’s been good enough that I haven’t noticed any problems with performance or functionality.

I did have to give up my Linux software raid, so at the moment, I’m sort of running without a net.  My plan is to add an external RAID box, either connected via eSATA or 1GbE NAS.  Obviously eSATA will perform better, but I’m not yet convinced I’ll see much of a practical performance difference.  I’ll add a new Intel e1000 NIC to the system dedicated to storage if I do that.  Anyone have thoughts on VMware iSCSI vs NFS performance?

Now I’ve got VMs for my SSL VPN, my File/Pri DNS/DHCP/kitchen sink server, a secondary DNS, and a FreeNAS, as well as some assorted client systems to test various things.  All in all, it’s worked very well.

If you want to go straight to ESXi 4.0, KernelCrash has you covered there as well.

Parenting: Key to success in potty training – a watch.

July 5, 2009 jcostom 1 comment

Today, I’m taking a break from my usual talk of technology and the like, in favor of a parenting moment.  Hopefully some of you find it helpful.

For quite some time now, we faced an uphill battle to get our son potty trained.  Now that he’s over 4 years old, it was time and really needed to happen. Alex is a highly focused child, who sometimes gets so immersed in what he’s doing that he doesn’t stop what he’s doing to use the potty.  He’s physically capable of taking care of business, so it’s obviously a behavioral thing.

My wife first found this potty watch at One Step Ahead. Great concept, terrible implementation. You set an interval for how often the child is to be reminded to use the potty (30, 60 or 90 minutes).  When the interval comes up, the child hears a little song, reminding the child to head for the potty.  Unfortunately, it’s a piece of garbage.  Our first one lasted about 3 weeks before the batteries died.  Opening the watch to replace the battery, followed by careful reassembly resulted in a watch that just didn’t work.  We called them of course, to complain about the poor quality of the watch, and to their credit, they did replace the watch at no charge.  The second watch just stopped making music after about 3 weeks.  See a pattern here?

Our final solution has thus far proven to be much better.  My wife found a women’s Timex lap watch that was small enough for Alex’s wrist.  The cool thing about this watch?  The timer feature.  It’s essentially a countdown clock that can be set to automatically restart at the end of each interval.  You can set the interval for whatever you like, no limits like the 30/60/90 of the old potty watch.

Alex gets to wear a real watch, which is also bound to help us with teaching him to tell time, he’s getting a prompt to remind him to hit the bathroom, which is sure helping reduce the number of accidents he’s been having, and we’re all happier.  So far, so good.

Categories: random Tags: , , ,

iPhones, and the desire to possess the new & shiny…

June 15, 2009 jcostom Leave a comment
iPhone 3GS

iPhone 3GS

Well kids, it’s that time of the year again.  iPhone season.  Last week, Apple announced their latest move in the iPhone marketplace – the iPhone 3GS.  The new member of the iPhone family is a small upgrade from the existing iPhone 3G that’s been beating the street for the past year.

What’s the new kid bring to the table relative to the existing 3G?

  • HSDPA 7.2
  • 3 MP auto-focus Camera
  • Video Recording w/editing on the device
  • Voice Control
  • Slightly better battery life

Obviously, anyone would be happy with more battery life – though the additional capacity doesn’t amount to all that much.  Video recording is a nice addition as well.  Voice control is a neat toy, but isn’t used too much in general.  Phones that run S60 have had voice control features for years now.  Same goes for many other manufacturers as well.  Is the feature a killer app that’s used all the time?  Nope.

E71 HSDPA Speed

E71 HSDPA Speed

HSDPA 7.2 is a nice addition, vs. HSDPA 3.6 on the 3G.  However, consider that most AT&T HSDPA customers never see 3.6 Mbps download speed, does 7.2 Mbps really matter?  Check out the screenshot on the right from my Nokia E71, which also supports HSDPA 3.6.  This is fairly representative of the mobile speed tests I’ve done on the device.  In the past, I have seen as high as 1 Mbps, but have never come anywhere near close to 3.6 mbps.

Upgrades from the 3G?  Certainly, but marginal, at best.  All of the other iPhone 3.0 OS features are also present on the iPhone 3G as well.

Has this stopped a torrent of iPhone 3G customers who seemingly cannot go on living without the shiny new iPhone 3GS?  Nope.  There’s a gaggle of people signing a Twitter petition in what will be a vain attempt to get AT&T to repeat last year’s exception to AT&T’s standard policy regarding pre-term upgrades for existing users under contract.  Kids, think about this.  Last year, with the move from the iPhone to the iPhone 3G, AT&T changed the game.  The original iPhone used a $20/month data plan that also gave 200 texts.  Contrast that with the iPhone 3G, which carried a $30/month data plan and included no texts at all.  If you wanted to add those 200 texts back, that’s another $5/month.  Effectively, the customer had to cough up an extra $180 a year to maintain the same level of service when they moved from iPhone to iPhone 3G.  This increased revenue level allowed AT&T to make an exception to the upgrade policy, allowing users that were only half way through their contract to upgrade with no additional cost above what a new customer would pay.

Still don’t get it?  When you buy a phone from a carrier, you’re getting it at a lower price because of your commitment to a contract term of 1, 2, or sometimes even 3 years, though 3 year deals aren’t common in the US.  The carrier is partially subsidizing the cost of the device because you’re locking yourself in for a period of time.  For original iPhone customers, only being a half way through the contract, AT&T had not fully recouped the subsidy provided on the iPhone.  However, since allowing those original iPhone customers would result in an additional $360 above and beyond current revenue levels, it was financially feasible to allow the early upgrades.  It was even in the best interest of AT&T Wireless.  The fact that customers benefitted from the move was secondary – don’t confuse it with good will from AT&T.

So here we are, another year later.  The iPhone 3GS comes at an even lower price tag than before, but uses the exact same plans as the current 3G models.  This time around, there is no benefit to AT&T in allowing early upgrades at no additional costs, so they’re not.  This year, there are 3 levels of iPhone cost:

  • Fully Subsidized – $99 for the 8GB 3G, $199 for the 16GB 3GS, $299 for the 32GB 3GS, comes with a 2-year contract.
  • Partly Subsidized – Early Upgraders (12-18 months into contract) are eligible to upgrade for a $200 premium above the fully subsidized cost.
  • No Subsidy – If you’re less than 12 months into your contract, you can upgrade, but face a $400 premium above the fully subsidized cost.

Herein lay the source of angst for the twittioners.  Kids, get this through your heads.  Your phone company is not your friend, and you’re their friend either.  You’re their customer – who sends them money in return for services.  You’ve agreed to be bound by the terms of a contract.  You cannot alter the terms of the deal just because you want the new, shiny toy.

Categories: apple, tech Tags: , , ,

Installing a NIDS with a passive Ethernet tap

April 26, 2009 jcostom 2 comments
IDS Install with Tap

IDS Install with Tap

I wanted to install a small network ids on my home network using Snort.  I wanted to stick the nids outside of my firewall, so it would be able to examine all Internet traffic coming in & out of the network.  Of course, putting a device online outside my firewall without any protection isn’t terribly attractive, so I decided to install using a tap.  Ignoring the fact that this is really the only possible configuration, given my home ISP (FiOS), it allows me to do a completely stealthed deployment of a nids.  Unfortunately, this type of deployment also precludes the ability to interact with any traffic seen on the wire, so flexresp is out of the question.

Construction of a passive tap

Construction of a passive tap

The other bad part about using a tap is that simply by the nature of the tap, you need to have 2 Ethernet ports to sniff on.  Why?  Check out the Snort docs on the subject.  When you setup a tap, you can only push one direction’s worth of traffic onto a single port.  This means you have to combine the traffic on the sniffing device.  Since you can only receive traffic and can’t send on these ports, you must have a third Ethernet port to connect to your internal network, or if you’ve got a larger network, a management LAN.

So, building your tap is pretty simple, when you’ve got the picture here on the right to work from.  Need the parts?  Head over to Home Depot and grab yourself the following parts:

  1. A plastic electric box (get one marked for “Old Work”).  An 8 cubic inch box will probably not be deep enough, so go for the one of the 14 cubic inch ones.  Unscrew the little anchor flaps and toss them in the trash.
  2. A 4-jack faceplate.  Whatever color you like.  I used white.
  3. 4 Cat 5e Ethernet jacks.  I got 2 white and 2 blue.  The white jacks are the Host jacks, and the blue ones are Tap A & B, as shown in the figure at the right.
  4. About 6 inches of Ethernet cable.

Strip off the jacket and remove the 8 wires.  Wire up the jacks as shown in the figure.  I found it easiest to wire up one of the host jacks, then run the wires through the tap jacks and finally up to the other host jack.  Try to keep the twists in the wire as much as possible, to prevent NEXT (Near End Crosstalk).  Cap off the jacks and screw the thing into the electric box.

I made two, one to use for the NIDS, and another to carry around for work if I need a tap.

I’m not going to go into how to install Snort, ACID, or any of that stuff.  There are already enough guides out there on that topic.  I will, however, address the need to join the two sniffing interfaces into a single full-duplex interface for Snort to sniff on.  You’ll be using the Linux kernel’s bonding module for this.  I’m going to assume Debian or Ubuntu here.  Add the bonding module to your /etc/modules file, then execute the command modprobe bonding.  In the /etc/network/interfaces file, you’ll need something like this:

auto bond0
iface bond0 inet manual
  up ifconfig $IFACE 0.0.0.0 up
  down ifconfig $IFACE down
  post-up ifenslave bond0 eth0 eth1
  pre-down ifenslave -d bond0 eth0 eth1

Obviously, you’ll need to configure Snort to sniff on the bond0 interface.  Don’t forget to install the ifenslave package.  It’s not installed by default on Ubuntu.

The biggest concern lots of tap novices have is accidentally introducing traffic onto the wire via the tap.  Let’s be clear.  This is simply impossible.  Can’t happen.  At all.  Why?  The only pins that are live on the tap ports are 3 and 6.  Guess what happens on those pins?  It’s only RX, not TX, so you can’t transmit on the tap ports.

Categories: featured, linux, tech Tags: , , ,

Monkey's Big Trip

April 22, 2009 jcostom Leave a comment

So, I’m in Virginia until tomorrow for training.  Alex thought it would be fun to send his stuffed Curious George with me, and so I’ve been sending pictures.

After a big day with me, Monkey decided to relax a bit.

Monkey, relaxing in a chair.

Monkey, relaxing in a chair.

After getting a bit of rest, Monkey decided to send off a few emails.

Monkey sending out some emails

Monkey sending out some emails

Next, Monkey finally figure out he was hungry, so he cooked some dinner.

Monkey got hungry.

Monkey got hungry.

After dinner, Monkey was thirsty, so he had a drink too.

And he's thirsty too.

And he's thirsty too.

At the end of such a big day, Monkey went off to bed.

Monkey, hitting the sack.

Monkey, hitting the sack.

Categories: funny Tags: , , ,

Breakfast, Michael Bay style…

April 7, 2009 jcostom Leave a comment

Thanks to Matt Ralph for pointing this one out.

Categories: funny Tags: ,

Bookmarklet Overdrive

April 3, 2009 jcostom Leave a comment
Bookmarklets

Bookmarklets

Bookmarklets rock.  They’re great timesavers, and a worthy addition to your browser’s bookmark bar.

So, what’s a bookmarklet?  In short, a bookmark, typically constructed with JavaScript that does a specific task.  For example, emailing some data via your favorite webmail provider, or checking Bugmenot for a login to a site you don’t really want to register for, or generating a shorter URL for a site.  Here are the ones I keep around.  Hopefully you’ll use some of them.  To grab them, mouse over the link and drag to your browser’s bookmark bar.  I recommend you make a folder on your bookmark bar and toss your bookmarklets in that folder (that’s what I do).

Here’s the breakdown of my favorite bookmarklets…

Google Services

Google This: Select some text on a page, click the bookmarlet, blammo – you’ve got a Google search for the selected text.

Google Images: Select some text on a page, click the bookmarlet and you’ve got a Google Image search for the selected text.

GAppMail This: Send the selected text via Google Apps for Your Domain Mail. You’ll need to edit this one to change out yourdomain.com for what your domain name actually is.

Gmail This: Send the selected text via Gmail.

Google Cache: Pull up the Google Cache version of the currently loaded page.

Google Map This: Select an address, get a Google map of it.

Geocode: Get the Latitude & Longitude for the center of a Google map.

Google Translate: Translate the currently loaded page into English

Web Development

Show Divs: Show the <div> areas on the currently loaded page.

ReCSS: Reload CSS for the currently loaded page.

W3C HTML Validator: Run the currently loaded page through the W3C’s HTML Validator.

W3C CSS Validator: Run the currently loaded page’s CSS through the W3C’s CSS Validator.

References

Acronym Lookup: Lookup an acronym in the Internet Acronym Database

Urban Dictionary Lookup: Lookup a selected word in the Urban Dictionary.

Social Networking

Del.icio.us Linkbacks: Show del.icio.us links to the current page.

Compulsory Login Bypass

BugMeNot: Lookup usernames & passwords for various sites.

URL Shorteners

DiggBar: Uses the new DiggBar for URL shortening.

Cli.gs: Uses the Cli.gs shortening service.