If you want to run a ton of VMs on a server, Xen is great. It's fast and stable once you sort through the mess of getting a kernel that both supports your hardware and runs well as a Dom0 (the "host" machine).
And for the past year or two, most distros have shipped kernels which would boot just fine "out of the box" on Xen virtual machines.
It's what most "cloud" or VPS providers run (including Amazon, Rackspace, Slicehost, Linode, etc).
However, if you're running a desktop and want to virtualize, Xen is probably going to be a HUGE pain in the balls, with no real benefits. Just use KVM or VirtualBox.
MailWrangler didn't get banned for being "competitive," per se. It was because it "duplicated the functionality" of MobileMail. Ditto for Podcaster duplicating the iPod app.
The legitimate, user-positive argument Apple would likely make is they want the device to be easy to use and not confusing, such that there's no compelling reason to have a million different music players or Mail apps when theirs are great.
It's misleading to describe Apple's motivations as being anti-competive. Nobody knows that they're thinking. And they seem hellbent on not explaining themselves.
It is, of course, totally and completely stupid for Apple not to address these questions directly, be more clear about what will or won't be allowed, and to allow both MailWrangler and Podcaster on the store. It's just dumb, dumb, dumb.
I don't really get why most Slashdot comments I read refer to the iPhone as a flop.
It might be where I live, but there are tons and tons of them in LA.
And they do seem to be on track to sell the 10 million units Steve Jobs set as their goal by the end of this year...
It's not ubiquitous the way the iPod is, but it seems to me it achieved its goals...especially bringing non-technical people to the smartphone market, including lots of my friends and my very technophobic wife.
Obviously, neither my local qmail system nor my ADSL providers' SMTP relay will be listed in any SPF records; how will I be able to carry on locally managing my mail without automatically being rejected by SPF-aware mail servers?
I work for a web hosting company, DreamHost, and this is the only minor stumbling block for us and our users. Although we can generate good default SPF records for a majority of our customers, we probably host a couple thousand people who use random SMTP servers (either their ISP's, their office's, or ones they run themselves).
We'll naturally provide those people with a method to add any of those SMTP servers to their SPF record (and that's what your web host should do), but there will likely be a bunch of tech support generated from people's mail getting rejected because they didn't know to add weird SMTP servers to their SPF record.
Uh, if it's running as a module in the webserver, you can't have it run with any permissions outside of the webserver's. Because it's running inside the same process.
You can use suexec w/ PHP if you run it in CGI mode because it's then running in a separate process that suexec can setuid to your user/group.
I work for a web hosting company and hate PHP mostly because most PHP developers are complete idiots.
Van Gogh was not an expressionist. He was a post-impressionist.
I only took the trouble to correct your mistake because I disagree with your fairly backwards view of art...this idea of the artwork as a vessel for "the true meaning of the artist" is really trite.
You're coming at it wrong. Yes, superficially, your brain (and my brain) screams that "Different" should be an adverb, but the entire point of the slogan is to have you confront your own assumptions.
Don't think of the slogan as a mandate for you to change the way you think; instead consider it as a mandate for you to change what you're thinking of.
As in: Think [of the concept "]Different["].
And to scream about how stupid it is only reaffirms the fact that not many people "get it", not many people truly are world-changing visionaries, and all the other smarmy crap the ads (especially the Richard Dreyfus narrated commercial) imply.
The fact that you hate it (and a lot of supposed intellectuals hate it) is entirely the point.
Why in god's name would we want that bloated hunk of crap? It's awful.
Do we really want a word processor that intentionally fscks up its file format with every new version so that when one guy/gal in the office gets a new machine bundled with the latest version, the entite company is subtlely reminded that they'd better upgrade or be left behind?
Do you really want a word processor that uses 25% of your screen real estate for undecipherable buttons that access hundreds of obscure features that you'll never use?
Do you want what is arguably one of the more important computer program's design to be determined by an asshole marketdroid named Brad who gets promoted based on his haircut?
Do you want a goddamned paper clip making idiotic suggestions every ten seconds?
We can do this ourselves. Let's stop yearning for shitty software. Let's stop reinventing MS' lowest common denominator garbage. Let's write stuff that's actually GOOD. Write stuff that's really revolutionary.
This is our time. This is our movement. We do not have to be condemned to reinventing shoddy apps.
Which is not to say that MSOffice is unimportant--I understand how fundamental it is today. But if we're to make our computing lives better, we need to stop being content with the same market-driven crap that's been shoved down our throats since 1982.
I don't mean that we should use Emacs or even TeX. It's pretty obvious that the world would like a good word processor. We could very easily give the world one that doesn't completely suck, and without too much effort.
I've tried AbiWord, StarOffice, Applix, Word Perfect...they all pretty much suck as well.
So when will it happen? Why don't I do it? I don't know...maybe because there are too many confusing X toolkits, or that X sucks in general, or that people are afraid that a word processor that doesn't attempt to clone Word will die.
Whatever, I'm going to get back to writing an X CD player.
I'm fairly certain my school(USC) implements this, and it honestly works fine w/ the win9x/nt dhcp clients, but all the linux clients i've tried to use have screwed it up.
Hopefully when a more complete linux dhcp client is working the problems will be solved.
If you want to run a ton of VMs on a server, Xen is great. It's fast and stable once you sort through the mess of getting a kernel that both supports your hardware and runs well as a Dom0 (the "host" machine).
And for the past year or two, most distros have shipped kernels which would boot just fine "out of the box" on Xen virtual machines.
It's what most "cloud" or VPS providers run (including Amazon, Rackspace, Slicehost, Linode, etc).
However, if you're running a desktop and want to virtualize, Xen is probably going to be a HUGE pain in the balls, with no real benefits. Just use KVM or VirtualBox.
Dustn Sallings put the code on Github and has already hacked some basic Snow Leopard support and a minimal installer:
http://dustin.github.com/2009/10/23/mac-zfs.html
Code's here, fork away:
http://github.com/dustin/mac-zfs
MailWrangler didn't get banned for being "competitive," per se. It was because it "duplicated the functionality" of MobileMail. Ditto for Podcaster duplicating the iPod app.
The legitimate, user-positive argument Apple would likely make is they want the device to be easy to use and not confusing, such that there's no compelling reason to have a million different music players or Mail apps when theirs are great.
It's misleading to describe Apple's motivations as being anti-competive. Nobody knows that they're thinking. And they seem hellbent on not explaining themselves.
It is, of course, totally and completely stupid for Apple not to address these questions directly, be more clear about what will or won't be allowed, and to allow both MailWrangler and Podcaster on the store. It's just dumb, dumb, dumb.
http://brad.livejournal.com/2387105.html
I don't really get why most Slashdot comments I read refer to the iPhone as a flop.
It might be where I live, but there are tons and tons of them in LA.
And they do seem to be on track to sell the 10 million units Steve Jobs set as their goal by the end of this year...
It's not ubiquitous the way the iPod is, but it seems to me it achieved its goals...especially bringing non-technical people to the smartphone market, including lots of my friends and my very technophobic wife.
I work for a web hosting company, DreamHost, and this is the only minor stumbling block for us and our users. Although we can generate good default SPF records for a majority of our customers, we probably host a couple thousand people who use random SMTP servers (either their ISP's, their office's, or ones they run themselves).
We'll naturally provide those people with a method to add any of those SMTP servers to their SPF record (and that's what your web host should do), but there will likely be a bunch of tech support generated from people's mail getting rejected because they didn't know to add weird SMTP servers to their SPF record.
So for now we're taking it slow.
Uh, if it's running as a module in the webserver, you can't have it run with any permissions outside of the webserver's. Because it's running inside the same process.
You can use suexec w/ PHP if you run it in CGI mode because it's then running in a separate process that suexec can setuid to your user/group.
I work for a web hosting company and hate PHP mostly because most PHP developers are complete idiots.
Van Gogh was not an expressionist. He was a post-impressionist.
I only took the trouble to correct your mistake because I disagree with your fairly backwards view of art...this idea of the artwork as a vessel for "the true meaning of the artist" is really trite.
Another pedantic slashdot reply. I am an ass.
You're coming at it wrong. Yes, superficially, your brain (and my brain) screams that "Different" should be an adverb, but the entire point of the slogan is to have you confront your own assumptions.
Don't think of the slogan as a mandate for you to change the way you think; instead consider it as a mandate for you to change what you're thinking of.
As in: Think [of the concept "]Different["].
And to scream about how stupid it is only reaffirms the fact that not many people "get it", not many people truly are world-changing visionaries, and all the other smarmy crap the ads (especially the Richard Dreyfus narrated commercial) imply.
The fact that you hate it (and a lot of supposed intellectuals hate it) is entirely the point.
Why in god's name would we want that bloated hunk of crap? It's awful.
Do we really want a word processor that intentionally fscks up its file format with every new version so that when one guy/gal in the office gets a new machine bundled with the latest version, the entite company is subtlely reminded that they'd better upgrade or be left behind?
Do you really want a word processor that uses 25% of your screen real estate for undecipherable buttons that access hundreds of obscure features that you'll never use?
Do you want what is arguably one of the more important computer program's design to be determined by an asshole marketdroid named Brad who gets promoted based on his haircut?
Do you want a goddamned paper clip making idiotic suggestions every ten seconds?
We can do this ourselves. Let's stop yearning for shitty software. Let's stop reinventing MS' lowest common denominator garbage. Let's write stuff that's actually GOOD. Write stuff that's really revolutionary.
This is our time. This is our movement. We do not have to be condemned to reinventing shoddy apps.
Which is not to say that MSOffice is unimportant--I understand how fundamental it is today. But if we're to make our computing lives better, we need to stop being content with the same market-driven crap that's been shoved down our throats since 1982.
I don't mean that we should use Emacs or even TeX. It's pretty obvious that the world would like a good word processor. We could very easily give the world one that doesn't completely suck, and without too much effort.
I've tried AbiWord, StarOffice, Applix, Word Perfect...they all pretty much suck as well.
So when will it happen? Why don't I do it? I don't know...maybe because there are too many confusing X toolkits, or that X sucks in general, or that people are afraid that a word processor that doesn't attempt to clone Word will die.
Whatever, I'm going to get back to writing an X CD player.
I'm from central PA. The towns go, in order from northwest to southeast, from:
Blue Ball, to
Bird in Hand, to
Intercourse, to
Paradise.
There are very tasteful "I [heart] Intercourse" bumper stickers at tourist traps.
Also, they're towns noted for their Amish populations.
I'm fairly certain my school(USC) implements this, and it honestly works fine w/ the win9x/nt dhcp clients, but all the linux clients i've tried to use have screwed it up.
Hopefully when a more complete linux dhcp client is working the problems will be solved.