From what I understand support for IPv6 happens in the DSL modem not the customer's router. It talks IPv6 on the DSL side or probably on the DSL concentrator at the POP. Over the Ethernet port it talks IPv4 private IP address space.
Does anyone know if I am correct?
RLH
"IPv6, too much, too soon" -- Someone
I am working on an IPv6 migration project for our group. Our solution will include:
IPv6 to IPv4 proxy servers to a Private internal IPv4 address space
Some native IPv6 support where it is easy
White listing of some IPv4 services where the above two solutions do not work
I suspect our solution is fairly typical for most Internet portals considering IPv6.
Two big issues with Carrier Grade NAT (CGN) or Large Scale NAT (LSN) that will have to be resolved are geolocation and denial of service protection.
Geo-location is the mapping of a browser's IP address to a physical location. Most of the large portals are fairly accurate about this. Although I move around from Hayward to Pleasanton and sometimes they get it right with Palo Alto. The problem with CGN is that many browsers for many different users will be NATed behind a single IP address. So if you are on the left coast you might be mapped to the Silicon Valley, if you are on the right coast it might be DC or New York, and people in the middle might be Omaha, Nebraska. As long as the ISPs hide big regions behind a single set of IP addresses, geolocation is going to have problems.
HTML 5 has a separate geolocation protocol built in, but that is going to have to wait for browser upgrades. A logical solution might be to have the ISPs map their old POPs to a single fixed IPv6 address so all traffic from Palo Alto has one IPv6 address and all the traffic from Redwood City has another IPv6 address. But this is entirely to logical and would require effort on the part of the ISPs
The other big problem is Denial Of Service protection. My company has tools to block traffic from IP addresses that are determined to be abusers of the site: to many account creation requests, to many emails sent, to many login failures, etc. With CGN this becomes a real problem. First how do you determine how many is to many. With thousands of hosts NATed behind a single address a thousand emails an hour is entirely reasonable and ten thousand an hour is not outrageous. The other problem is that when you block the IP address you block all of the customers, not just the one causing the problem. A logical solution for this would be to give each customer their own IPv6 address that they are NATed behind. This could also work well with geolocation. But again it entirely to logical and it requires work on the part of the ISPs. Without the unique per browser IP addresses DOS protection becomes a really hard problem.
RLH
"IPv6, too much, too soon" -- Someone
Duhh... He does show a keen grasp of the obvious. And for people who use command lines he is preaching to the choir.
On the other hand for the GUI based people, they will miss it entirely. They will talk about add on GUI replay tools that allow one set of mouse clicks to be replayed to many different servers, or configuration management tools that do the work for you. I believe they truly do not understand that someone could get 20 mouse clicks on 40 different servers wrong. "Why would someone ever click the wrong check box?" They also believe that screen shots are valid ways to store configuration information off line.
Only half in jest.
RLH
Wikipedia is not the only place to get the seal. I went to the FBI's web site and found this:
http://www.fbi.gov/images/seal.gif
Not as good as the one on Wikiped which was extracted from a goverment PDF report. It is not hard to grab the seal from various government web sites and documents.
If you are thinking about this for your home, think about the cost of power. I bet that G5 sucks a lot of AC juice. And most likely this is at the highest tier of your power pricing. In the winter its not so bad because it heats the house, but in the summer if you live in an area where air conditioning is not just nice but an essential then you have to suck that heat out.
Buy one of these atom mother boards like the one of the fanless mini-ATX mother boards, one of the PicoPSU DC-DC ATX power supplies that plugs into the ATX power socket, http://www.mini-box.com/picoPSU-80, and you have a system that would make a nice file server. Add one or two 2 Tb 3.5" drives if you need space or one or two 500 Mb 2.5" drives to save power. This would give you a nice file server that sips the juice. Would probably pay for it self in a year in power savings and it is good for the environment.
I switched my X86_64 desktop for a dual core atom a year ago and love how much cooler it runs. My office is in the attic and does not have air conditioning or a window so heat is a big issue for me. I run Linux on the desktop and do browsing, email, text editing and the performance is acceptable. Sort of like the first dual core 32 bit systems. It is not a gaming system, but I am not a gamer.
Go green, use low power computers and save the environment.
RLH
Moses Avalon is a record company insider who has written some very funny books about the industry:
Million Dollar Mistakes
Confessions of a Record Producer
Secrets of Negotiating a Record Contract (maybe not funny, have not read it)
On his web site he as a royalty calculator that allows you to plug in numbers for a recording contact and see how much the band will make:
http://www.mosesavalon.com/calculate.shtml
It includes standard things in record contracts such as 10% record (CD) breakage and 23% production costs. He gives hints how to maximize the return to the band. At standard record industry contract terms with no advance to the band you have to sell over 3/4 of a million records in order to break even. This assumes the band has already recorded the album. Need an advance to do that, then you have to sell more albums in order to break even. It is fun to play with and the hints are funny and eye-opening. His basic point is that the only money the band is likely to see is the advance. So get as large an advance as possible and spend as little of it as you can.
At one time he had an article about the economics of a record contract and touring to support it and the end result is that for the hours the band worked, they would make the same money flipping burgers at MacDonald's. And this is for a band with a million selling record.
Now I do not know how this translates to itunes sales but I would not be surprised if itunes sales still have a 10% breakage allowance.
Moses is a very funny author to read.
RLH
I should have read a bit more. After threatening to sue and getting a huge public outcry, they backed off. Said is was simply a mistake with a mailing list.
There are many campfire songs that the Girl Scouts and Boy Scouts no longer sing because they were told they would be sued for royalties if they did not pay. It is bone headed things like this that give ASCAP and the music publishing industry a bad name. They could have given Boy Scouts, Girl Scouts and other non-profits limited permission to perform the songs at official functions and maybe made some money off of related sales like records and sheet music. But no, they had to threaten to sue. So songs like "This Land Is Your Land", "Puff the Magic Dragon", "God Bless America" and "Happy Birthday" are no longer sung around the campfire.
A quick google search found:
The birds may sing, but campers can't unless they pay up:
http://archive.southcoasttoday.com/daily/08-96/08-23-96/b02li056.htm
And it is even mentioned in Wikipeda:
http://en.wikipedia.org/wiki/American_Society_of_Composers,_Authors_and_Publishers#Criticism
Isn't America wonderful
From the first line of the Wikipedia entry for hazing:
"Hazing is a term used to describe various ritual and other activities
involving harassment, abuse or humiliation used as a way of initiating
a person into a group."
It is not "good natured". And yes, it is illegal. It was your choice of the word not mine.
As to "Men are from Mars, Women are from Venus", yes there are differences between the way the men and women interact and that is OK. If you want an all male work environment, then keep up the all male attitude. But if we want a balanced male/female environment we need to make the environment more inviting to women.
If you go back to my original post, I said that female sys admins I have known that have left the field do so because they are *tired* of the macho environment. It is not that they can not take it. It is not that it is illegal. The message I get is that they are not having fun any more or enjoying it so they leave the field and do other things. And I feel that it is the men who loose out. We keep to our macho ways and look enviously at the other departments with a mix of men and women. Well, at least I do.
If we want to keep women in the industry, we need to tone down our attitudes and listen to how women would prefer to work. I am not saying that we need to drop all of our male attitudes and start having tea parties (sorry for the stereotype). But it would help if we spent some time asking women how they would like to interact and then adopting some of those behaviors. And maybe, just maybe, we could apologize once in awhile when we step over the line with our competitive behavior.
And you think hazing is OK? Hazing in a work place environment is stupid not to mention illegal and just asking go get the company sued.
>
So women have to put up with this crap and that is OK. But to point out the problems with a hostile work place makes me sexist? Get real.
I didn't do it! Nobody saw me do it! Can't prove anything! -- Bart Simpson
