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From: Invisible
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 04:15:49
Message: <4e954cb5$1@news.povray.org>
>> RC4 has weaknesses concerning related keys. Also, the first few KB of the
>> keystream is quite weak. Also, the keystream has certain statistical
>> weaknesses. Also...
>
> Yep. I'm not saying it's the best protocol. I'm saying it hasn't been
> broken wide open as you seemed to be implying.

It just makes me twitchy, that's all.


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From: Invisible
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 04:27:57
Message: <4e954f8d$1@news.povray.org>
On 11/10/2011 09:13 PM, Darren New wrote:
> On 10/11/2011 13:02, Orchid XP v8 wrote:
>> So Microsoft has secretly implemented an undocumented system to allow any
>> unauthenticated Internet node to bypass all security restrictions and
>> access
>> any port on a Windows PC?
>
> You mean the "secret" IPv6 standard documentation on how to do this
> tunneling?

The "secret" part being that they didn't warn anybody "hey, we've 
implemented a new feature to completely disable the security of your 
network".

>> (Although I still don't quite get how it can bypass a firewall that
>> doesn't
>> allow inbound traffic. Still, Wikipedia says it does, so it must be
>> true.)
>
> The same way IPv4 ssh does. It tunnels out first. It's not like anyone
> can connect to your machine that you don't know about, any more than
> returning IP packets from a TCP connection "bypass" your firewall.

Either it does allow more people to connect, or it doesn't. Make you 
mind up!

The thing about NAT is that [in the default configuration] it allows 
outbound connections only. Either Teredo tunnelling changes that 
invariant, or it doesn't.


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From: Darren New
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 12:17:33
Message: <4e95bd9d@news.povray.org>
On 10/12/2011 1:13, Invisible wrote:
> Now given that the Amiga is a home computer, how
> many homes have a VT100 just laying around?

The VT100 is not the only serial terminal. Anything that talks RS232 serial 
is sufficient. You know, like, another Amiga, say?

-- 
Darren New, San Diego CA, USA (PST)
   How come I never get only one kudo?


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From: Darren New
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 12:19:24
Message: <4e95be0c@news.povray.org>
On 10/12/2011 1:27, Invisible wrote:
> The "secret" part being that they didn't warn anybody "hey, we've
> implemented a new feature to completely disable the security of your network".

It's no more disabling the security of your network than telnet or pop3 or 
http is. You have to tunnel out before you can get any answers back.

Besides, it's part of IPv6. How much more do they have to warn you, other 
than publishing it worldwide in RFCs?

> Either it does allow more people to connect, or it doesn't. Make you mind up!

Why don't you read up on how it works?

-- 
Darren New, San Diego CA, USA (PST)
   How come I never get only one kudo?


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From: andrel
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 16:31:33
Message: <4E95F928.5060108@gmail.com>
On 12-10-2011 7:50, Patrick Elliott wrote:
> On 10/11/2011 12:58 PM, Orchid XP v8 wrote:
>> On 11/10/2011 08:41 PM, Darren New wrote:
>>> On 10/11/2011 12:10, Orchid XP v8 wrote:
>>>> I suppose Windows also doesn't stop responding when you change your
>>>> TCP/IP
>>>> configuration settings?
>>>
>>> Um, no?
>>>
>>>> (Actually, that one seems to vary. On some
>>>> computers, you change it and it doesn't even blink. On others, you
>>>> change it
>>>> and have to sit there for multiple minutes before it wakes up again...)
>>>
>>> Maybe your DHCP server is hosed up or something?
>>
>> It seems to be more common with laptops, so maybe it's related to Wi-Fi
>> or something... Or maybe I'm imaginig that part.
>>
>>>> Since Explorer is 90% of the Windows GUI, that's not a particularly
>>>> drastic difference...
>>>
>>> Only if you don't interact with actual programs. Saying "the GUI locks
>>> up" on Linux, for example, means every program stops responding because
>>> you just crashed the X server.
>>
>> OK. I can't change window [because the task bar isn't working, and
>> Alt+Tab isn't working], I can't open Task Manager to see what's
>> happening, I can't lock or unlock the screen [Ctrl+Alt+Del doesn't do
>> anything]. But sure, if I happen to have an application open, maybe it
>> stays running. [I haven't ever tested that.]
>>
> This is actually possibly the case. I have had "other" things cause a
> similar result. Generally, they peg some process, or memory handling, or
> something to max, and only lock the application *causing it*. The
> problem of course being, if you are in the application that created the
> problem, the whole thing seems to stop bloody working, and you can't get
> out of it, to do anything else, including ctrl-alt-del.

That is what 'surprises' me everytime. How can you design an OS where it 
is possible to prevent a task switch to a taskmanager. I assume it is 
because it wasn't designed but grown. Still, by now they should have 
solved that, I would assume.
To Andy: I have some programs that when fed enough input will apparently 
freeze the machine, if I wait 5 minutes I get it back when the process 
has processed the data. So, yes it stays running. Unfortunately that 5 
can also be 2 or 20, there is nothing to indicate what will happen. In 
defence of Bill, my Ubuntu version just crashes. It does not freeze the 
machine, but it also gets nothing done.
BTW this is when reading a 1-2 million faces text file in into Blender. 
And when going into edit mode after that and...
(but Maya can not even handle halve as much).

-- 
Apparently you can afford your own dictator for less than 10 cents per 
citizen per day.


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From: andrel
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 16:37:40
Message: <4E95FA96.1010103@gmail.com>
On 12-10-2011 8:03, Patrick Elliott wrote:
[snip]

> All I want is something to build meshes in, and has as many bloody ways
> to do that as possible, without all the other stuff getting in the way.
> Apparently, I am on the wrong planet to find that. lol

The only thing I use Blender for is to build meshes. That works great 
for me. My alternative would be something like Maya, but that has an 
even more complicated interface (from a GUI point of view).
In the next few weeks I will use it too to make meshes, so I'll keep you 
posted on the progress.

-- 
Apparently you can afford your own dictator for less than 10 cents per 
citizen per day.


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From: andrel
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 16:40:22
Message: <4E95FB39.4060606@gmail.com>
On 12-10-2011 7:54, Patrick Elliott wrote:
> On 10/11/2011 12:01 PM, Orchid XP v8 wrote:
>>>> a product that you already have lying around and try to sell it to a
>>>> completely different audience...
>>>
>>> You'll notice that Blender is free, right?
>>
>> Sure. That doesn't mean it's well designed. ;-)
>>
> Often, if its like the first 10... or so versions after the "in house"
> version, its pretty much a given that it *won't be* well designed.
> Though, as the poor bastard that has to figure it out, and doesn't have
> the original company to "help them" do that, design isn't necessarily
> the problem so much as an inordinate need to know what drugs they where
> taking when they wrote it, so you can inform the local equivalent of the
> ATF, so they can keep an eye out for it on the streets.

I have used both the pre 2.5 versions and the post 2.5 versions (that is 
really completely redesigned) and although I know this common complaint 
I cannot confirm it.

-- 
Apparently you can afford your own dictator for less than 10 cents per 
citizen per day.


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From: Darren New
Subject: Re: Is this the end of the world as we know it?
Date: 12 Oct 2011 19:47:07
Message: <4e9626fb$1@news.povray.org>
On 10/12/2011 13:31, andrel wrote:
> That is what 'surprises' me everytime. How can you design an OS where it is
> possible to prevent a task switch to a taskmanager. I assume it is because
> it wasn't designed but grown. Still, by now they should have solved that, I
> would assume.

It's really not too hard. Modern desktop OSes suck at scheduling disk I/O, 
so if you're locked up because of disk I/O and you launch a new program, 
you're going to be locked up.

Sit down at a Linux machine with 16G of RAM. Create a directory with 
1,000,000 one-block files, then type "sync", then type "rm -r xyz;sync" and 
watch Linux "lock up" for several minutes as anything that wants to touch 
the disk waits for the sync to finish.

Same thing can happen if you have a whole ton of data paged out when you 
terminate the application, as AFAICT both Windows and Linux will happily 
page everything back in as it terminates the job.

> BTW this is when reading a 1-2 million faces text file in into Blender. And
> when going into edit mode after that and...

Disk I/O sucks in every modern desktop OS. Android also "locks up" on 
occastion for several seconds at a time, as some random program launches a 
check for something online when you're in the middle of typing something, 
for example.

Contrast with CP/V, a mainframe OS from the late 1960s, that ran on a 
computer with *maybe* a 500KHz CPU running out of 256K of magnetic core that 
happily supported 40 or 50 users before you started to notice any slow-down. 
How? They had something like 30 or 40 different priority bumps depending on 
what you were waiting for and what woke you up. Waking up from waiting for 
free memory (i.e., someone else's page-out completing) vs waking up from 
waiting for pages to page in vs waking up from waiting for a directory entry 
to come from disk vs waking up when disk data has arrived vs etc all had 
different priority bumps, including on whether you're in core, out of core, 
finished your quantum last time, waited before your min-quantum expired last 
time, etc etc etc.

-- 
Darren New, San Diego CA, USA (PST)
   How come I never get only one kudo?


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From: Invisible
Subject: Re: Is this the end of the world as we know it?
Date: 13 Oct 2011 04:19:53
Message: <4e969f29$1@news.povray.org>
On 12/10/2011 05:17 PM, Darren New wrote:
> On 10/12/2011 1:13, Invisible wrote:
>> Now given that the Amiga is a home computer, how
>> many homes have a VT100 just laying around?
>
> The VT100 is not the only serial terminal. Anything that talks RS232
> serial is sufficient. You know, like, another Amiga, say?

Oh, OK.

So what can you actually do with a "kernel debugger", anyway? Just look 
around the machine's memory or something?


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From: Invisible
Subject: Re: Is this the end of the world as we know it?
Date: 13 Oct 2011 04:20:57
Message: <4e969f69$1@news.povray.org>
On 12/10/2011 05:19 PM, Darren New wrote:
> On 10/12/2011 1:27, Invisible wrote:
>> The "secret" part being that they didn't warn anybody "hey, we've
>> implemented a new feature to completely disable the security of your
>> network".
>
> It's no more disabling the security of your network than telnet or pop3
> or http is. You have to tunnel out before you can get any answers back.

OK. So how is my statement that "you cannot log in to it from outside 
the building" invalidated then?


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