Autumnal Equinox 2018

September 23 2018 0154 GMT

DHCP

DHCP, or Dynamic Host Configuration Protocol, is an internet standard defined by RFC1541 and later by RFC2131(as well as a few other RFCs relevant to other physical mediums) as an extension to BOOTP.

DHCP is a fairly elegant method to give client computers configuration information to allow them access to an IP network.

Conceptually the protocol is straight forward:

  • A client machine boots and activates it’s network adapter
  • A client machine requests IP configuration information
  • A server provides IP configuration information with a time specific lease
  • A client consumes the IP configuration information and setups up it’s network adapter
  • A client attempts to renew it’s IP configuration information when the lease has half expired
  • A client releases it’s IP configuration information when done with it
  • A server release client specific configuration information either when it’s been released by the client or the lease has expired.

Most home and small businesses use DHCP and they use their router / gateway device as the DHCP server (most of these devices default to enabling their DHCP server).

Some gateways allow you a great deal of control over the DHCP server, they allow you to set MAC address to IP bindings, specify the DHCP records to be provided.  Some gateways only allow you to turn on or off the service.

An option to running the DHCP server in your router / gateway would be to run it on a machine that is always on (or at least is one when any machine that might need DHCP services might be on).

Microsoft provides a DHCP server as part of their server operating systems (Server 2003 and Server 2008), ISC provides a DHCP server that can be run on a variety of operating systems, and there are a few shareware and open source DHCP servers that might fit your needs.

There’s no question that DHCP is the way to manage IP configuration information in a small network, and most business and enterprises use DHCP as well.

Alternately if you don’t have a device that does DHCP and don’t want to or can’t use a software solution you can use the “Alternate Configuration” panel on a Windows PC to setup the IP address configuration information and if a DHCP server is ever present it will override the information you’ve entered on the PC.  This is very handy for laptops that need to be configured by DHCP when they’re out and about or at the office, but when you don’t have a DHCP server at home and need to connect to another machine.  This is different than statically setting the IP address on the machine, if you do that you have to change the configuration each time you need DHCP.

Originally posted 2009-01-11 12:39:33.

Summer Solstice 2018

June 21 2018 10:07 GMT

GB-PVR

For many a computer hooked up to their TV is going to become more and more common place over the next few years… and certainly Vista Media Center does a great deal to close the gap between consumer electronics and computers; but for those who want more it falls short.

One of the biggest failings of Vista Media Center is that it doesn’t support H.264 natively as a video recording type… and many of the external HD recorders transmit their stream in H.264 (not MPEG-2 like ATSC/DVB systems do).

There are, of course, a host of for pay media programs for your PC you could look at — things like Beyond TV and Sage TV have been around for years… but the new kid on the block is a freeware project called GB-PVR.

GB-PVR is fairly full featured, and it’s likely that it will work with your hardware provided you have drivers, and it’s a reasonable fully featured media program.  You can get a copy and try it out from the link below, as well as read up on it.

http://www.gbpvr.com/

Originally posted 2008-08-31 18:46:19.

Tax Land Mines

There’s all this talk about how the Republican Party crafted a tax land mine when they put in place the Bush tax cuts with a ten year expiration — that they knew that the laws would force action by the Democratic party (you mean the Republican’s knew that after George W Bush there wouldn’t be another Republican in White House, nor would they be in control of either branch of the legislature?

Hmm… I don’t but it, but if it’s true that’s cause for major concern.

So the rational goes:

  • If the Democrats vote on the issue and they choose not to renew the tax cuts; they are seen raising taxes.
  • If the Democrats vote on the issue and they choose to renew the tax cuts for only those making less than a quarter million dollars; they are seen as raising taxes.
  • If the Democrats vote on the issue and they choose to renew the tax cuts as they are now, the Republican’s get what they want, and they are seen taking no action to address the growing deficit.

I don’t know what alternate Republican reality these analysis came from, but I certainly don’t understand why the Democrats can’t take the reigns and turn this into a political hot potato for the Republicans.

Elections are about votes; and most American’s earn far less than a quarter million dollars per year, so they aren’t effected by renewing the tax cuts for only those who earn less than that (the current strategy favored by the Obama administration)… so leverage that, show how (once again) the Republican’s want to benefit those who are wealthy, and are only providing lip service as to trying to control the deficit (it is, after all, Republican policies of the Bush administration that created the deficit we have now — remember when Bush took office there was the so called budget “surplus”).

Regardless of your political affiliation, the only real way to take control of the deficit is spend less than you take in — it’s not a revolutionary concept, and in the end it’s likely we’re going to have to both increase taxes on at least some American’s, cut waste, and likely reduce spending.

FY2007
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FY2008
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FY2009
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Originally posted 2010-10-02 02:00:45.

Maybe…

 Maybe, just maybe I’ve found a clue why BitTorrent can’t make any money — and here’s a good example from a web page on their site.

http://www.bittorrent.com/company/

Company Overview
BitTorrent is the global standard for delivering high-quality files over the Internet. With an installed base of over 160 million clients worldwide, BitTorrent technology has turned conventional distribution economics on its head. The more popular a large video, audio or software file, the faster and cheaper it can be transferred with BitTorrent. The result is a better digital entertainment experience for everyone.

With tens of thousands of new users every day, BitTorrent has three lines of business:

BitTorrent DNA
BitTorrent DNA is a disruptively effective content delivery technology. It significantly reduces bandwidth costs for popular files while dramatically improving the performance and scalability of websites. BitTorrent DNA enables websites to seamlessly add the speed and efficiency of patented BitTorrent technology to their current content delivery infrastructure, requiring no changes to their current Content Delivery Network (CDN) or hardware in the origin infrastructure. Businesses can benefit from the efficiencies of peer-assisted content delivery while improving the end-user experience.

BitTorrent Device Partners
The BitTorrent Device Partners is a program designed to meet the various needs and depth of technology that hardware and software companies require to create next-generation Internet-enabled consumer devices. The BitTorrent Device Partners includes a Software Development Kit (SDK) for consumer electronics manufacturers who are creating new devices for the home, office or on the move. The BitTorrent Certified program is another offering which ensures compatibility between CE products and the BitTorrent ecosystem of services, products and content. Compatible devices are also eligible for the BitTorrent Certified logo endorsement, which allows hardware manufacturers to leverage the BitTorrent brand for packaging and promotional materials.

For more information about BitTorrent products and services, please contact us. 

They indicate BitTorrent has three lines of business, yet they only list two.  Is the third line kept super secret?  Are they so clueless they can’t count?  Do they not know how to proof read?  Do they not know how to revise their web page?  Do they expect everyone to contact them to get the third business line?  Are they still “thinking” about what the third (profitable) business line might be?

Common guys, just admit that you don’t have a head for business — it doesn’t matter what technology you buy (since you obviously can’t seem to continue to innovate on your own), you’re just never going to make any real money, you’re just going to burn venture capital as you slowly go out of business.

Originally posted 2008-12-09 12:00:02.

Solar Lighting

I’ve been looking at several solar lighting products to potentially light my driveway, my walkway, and areas.

The first thing you notice is that prices are all over the map — for products that have very similar specifications.

You will find that some of the products have plastic housing, and some have aluminum (or even stainless steel) — but interestingly enough, that doesn’t seem to track their prices.  In fact one of the least expensive models for driveway/walkway lighting I’ve found is in a stainless steel case (now you do have to buy a six pack, but that’s actually about the right number even for short driveways).

For area lighting there’s a huge different in styles; and these are much harder to compare.  The biggest disappointment thus far with the area lights is the amount of light (Lumens) that they produce — they’re so low, in fact, that they seem like they’d be fairly useless without a backup light (run from AC).  In fact since I can run AC to all the locations I want area lights I’m considering just putting in motion/photo sensors and using outdoor LED lamps (that will use electricity, but it’s fairly energy efficient, and produces much more light).  One thing’s for sure, if you like the light your HID (like the sodium lamps I have) gives off, you’re not going to be happy with what you can get from a solar lighting system (or even an LED lamp).

I’ll do a little more “testing” and provide some brands (and where I found them) that you might want to consider; but keep in mind that everyone will have a slightly different set of requirements and there’s likely not going to be one model that’s right for every need.

If you want to buy something right away; make sure that you shop several different vendors before you decide — it’ll surprise you how much essentially the same item varies in price; and the “discount” stores don’t always have the best price!

Originally posted 2009-08-20 01:00:15.

A long time ago, in a galaxy far far away

Today Verizon ships the latest edition in the Motorola Droid empire — the R2-D2; a skinned Droid 2 in a box that had to pay it’s share of licensing to George Lucas.

The only “hardware” differences between the R2-D2 and the 2 are purely cosmetic — there’s a jumble of software on the R2-D2 to appeal to the techno-geek (all of which will likely be available one way or another for virtually any Android phone fairly soon after the R2-D2 ships).

There’s a $50 premium for the R2-D2 over the Droid 2; and rumors are that the Droid 2 will be discontinued in favor of a newer model with a faster processor and GSM/Worldphone support.

If you’ve got the extra cash, and just can’t satisfy your need for gadgets any other way — go on, splurge — after all, it’s the two year contract that will end up being the gift that keeps on giving.

Droid R2-D2

Originally posted 2010-09-30 01:30:37.

Bill of Rights – Amendment I

The past week has made me question if it’s not just the financial future for the United States that is in serious question, but the very founding principles which established this republic.

The framers of the Constitution of the United States were compelled to add the first ten amendments to that document before ratification. Known as the Bill of Rights the first of these amendments (Amendment I) contains precept son which much of the expansion of this country has been based (though this is not the first time it’s principle has been tarnished).

On 17 September 1787 the current United States Constitution was adopted by the Constitutional Convention in Philadelphia, Pennsylvania and ratified by each US state in the name of “The People”.

The United States Constitution is the oldest written (single document) constitution still in use by any nation on our planet, and had for over two hundred years defined law in the United States.

On 25 September 1789 the following was added to the United States Constitution, and enacted in full force on 15 December 1791.

Amendment I

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.

The “eviction” of peaceful protestors in a number of cities across the nation was alarming in itself; but the use of pepper spray to clear out a group of peaceful protesters at the University of California Davis, in Davis, California is a travesty.  This incident, caught on video and seen within 24-hours of it happening by over half a million people is truly alarming.

I do agree with University of California Davis Chancellor Linda Katehi that an independent investigation be conducted; but I believe that several investigations need to be conducted, including one by the Justice Department under the direction of the US Attorney General.

While I do not feel Linda Katehi needs to step down; I do believe both her and the commander of the police force, as well as any officer acting outside the bounds of the orders issued, need to be put on administrative leave immediately; and their actions would need to be fully investigated before allowing them to return to their positions of authority.

Points of law, and the legality of actions are determined by the judiciary; but it is the responsibility of the executive branch to insure that potential violations of law (and civil rights) are arraigned.

The Arab Spring was seen as a great movement forward to allowing people to be free(r) and allow them to have a (larger) stake in deciding their future; but now, perhaps the United States needs to request international observers to insure that our government doesn’t continue down this road to infringe on the rights that “we the people” have given so much to secure.


Originally posted 2011-11-21 02:00:40.

Comparison of Canadian and American health care systems

There are a number of comparisons between the Canadian and US health care systems; and like with any complex issue you can make the comparison show almost anything you want depending on the metrics chosen for the comparison and the facts included (or omitted).

Often the Canadian and American systems are compared since until the 1960s they were extremely similar, and Canadian and Americans share a large common history and to some extent culture.

This comparison on Wikipedia appears to be an honest attempt to compare and contrast the two systems, it includes a number of citations.  I recommend reading it, and considering what it has to say in light of the the current state health care in the US.

Comparison of Canadian and American health care systems

Originally posted 2010-03-16 13:03:11.