Re: Had an idea - looking for a math buff to tell me if it's possible with today's technology.

2011-05-18 Thread Chris Owen
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On May 18, 2011, at 4:03 PM, Leo Bicknell wrote:

> Bah, you should include the solution, it's so trivial.
> 
> Generate all possible files and then do an index lookup on the MD5.
> It's a little CPU heavy, but darn simple to code.

Isn't this essentially what Dropbox has been doing in many cases?

Chris

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Re: quietly....

2011-02-03 Thread Chris Owen
On Feb 3, 2011, at 9:00 AM, Jack Bates wrote:

> The concept of v4 to v6 addressing scale doesn't match the pricing scale, 
> though. Generally, I expect to see most ISPs find themselves 1 rank higher in 
> the v6 model compared to v4, which effectively doubles your price anyways. :)

Not sure I understand that one.

/19 = 500 /29s

/32 = 64,000 /48s

Shouldn't the v6 blocks be a lot bigger?

Chris

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Re: quietly....

2011-02-02 Thread Chris Owen
On Feb 2, 2011, at 8:38 PM, Randy Carpenter wrote:

> From the main section on https://www.arin.net/fees/fee_schedule.html:
> 
> "...  ISPs with both IPv4 resources and IPv6 resources pay the larger of the 
> two fees."
> 
> It is not mentioned anywhere in the waiver stuff.

Actually it is in the waiver stuff but I didn't see it at the top too.

That's much more reasonable.

Chris

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Re: quietly....

2011-02-02 Thread Chris Owen
On Feb 2, 2011, at 7:22 PM, Randy Carpenter wrote:

> And, even if you are an ISP, you only pay the larger of the two fees if you 
> have both v4 and v6. I'm not sure if that is permanent or not, though.

I thought that was part of the "waiver" stuff that expires this year.

Chris

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Re: quietly....

2011-02-02 Thread Chris Owen
On Feb 2, 2011, at 3:09 PM, david raistrick wrote:

> At least in ARIN territory, if you're multihomed, and you can show in-1-year 
> use of 50% of a (v4) /24, you qualify for a PI v6 /48. 

One of the things I find frustrating about this is the cost of the space.   
We're a very small shop and to add IPv6 addresses for testing now we're looking 
at paying another $2,200 a year ($1,700 in the first year) when it will 
probably be some time before we actually _need_ the addresses.   The waivers a 
few years were a nice start but why does the cost need to double ever?

It isn't like ARIN needs the money, they have more than they can spend.   Once 
we are a "member" and have IPv4 space, the marginal cost to ARIN of assigning 
the equivalent in IPv6 space is pretty close to zero.   Maybe some sort of NRC 
but doubling the annual cost just doesn't make sense.

At least with IPv4 you can make the argument that the cost is artificially high 
to control usage but with IPv6 there are no more scarcity issues.

I'd love to add IPv6 to the network but it just rubs me the wrong way to have 
to pay $2,220 a year to do so for something that essentially has no cost.  I 
can't imagine having to justify it to a bean counter.

Chris

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Re: Request Spamhaus contact

2011-01-17 Thread Chris Owen
On Jan 17, 2011, at 6:42 PM, Jeffrey Lyon wrote:

> I fat fingered the netmask, try now.

I've asked privately but would it really be too much to take this off NANOG?

Spammer complaining he is on a RBL is hardly relevant.

Chris

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Re: Tracking down reverse for ip

2010-04-15 Thread Chris Owen
On Apr 15, 2010, at 3:07 PM, Dennis Burgess wrote:

> I have a customer that has an IP of 12.43.95.126. Currently, I can not
> get any reverse on this IP.  
> 
> What is the best way to find out the responciable servers for this?
> Thanx in advance.
> 
> ---
> Dennis Burgess, CCNA, Mikrotik Certified Trainer, MTCNA, MTCRE, MTCWE,
> MTCTCE, MTCUME 

Don't forget WTF.

Chris

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Re: AT&T SMTP Admin contact?

2009-12-02 Thread Chris Owen
On Dec 3, 2009, at 12:42 AM, John Levine wrote:

> I also agree that any domain with live users (as opposed to mail
> cannons sending ads or transaction confirmations) is likely to
> experience pain with -all from all the overenthusiastic little MTAs
> whose managers imagine that "stopping forgery" will lessen their spam
> load rather than losing mail from roaming users.

Again I guess I don't understand.   How are these MTA managers being 
"overenthusiastic"?

Publishing a SPF (with -all) is essentially me requesting that they reject any 
mail from my domain not coming from one of the approved hosts.   I'm the one 
making the decision to ask them to bounce such mail.   Seems to me they are 
only being responsible in actually enforcing a policy that I set for the domain.

Chris

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Re: AT&T SMTP Admin contact?

2009-12-02 Thread Chris Owen
On Dec 2, 2009, at 9:52 PM, valdis.kletni...@vt.edu wrote:

> It only stops forgery if the SPF record has a -all in it (as hubris.net does).
> However, a lot of domains (mine included) have a ~all instead.

I guess I've never really seen the point of publishing a SPF record if it ends 
in ~all.  What are people supposed to do with that info?

Spamassassin assigns it a score of 0.6 but that is low enough it really doesn't 
have much since it doesn't assign any negative points for SPF_PASS.

> (And before anybody asks, yes ~all is what we want, and no you can't ask us
> to try -all instead, unless we're allowed to send you all the helpdesk calls
> about misconfigured migratory laptops".. ;)

I certainly understand that you may not be able to lock down your domain.  We 
don't even try for customers for instance.However, if you can't, I guess I 
don't really see what good publishing a SPF record is if you tell people not to 
enforce it.

Chris

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Re: AT&T SMTP Admin contact?

2009-12-02 Thread Chris Owen
On Dec 2, 2009, at 12:31 PM, Rich Kulawiec wrote:

> Because SenderID and SPF have no anti-spam value, and almost no
> anti-forgery value.  Not that this stops a *lot* of people who've drunk
> the kool-aid from trying to use them anyway,

OK, I'll bite--How exactly do you go about forging email from my domain name if 
the host receiving it is checking SPF?

Chris

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Re: ISP customer assignments

2009-10-05 Thread Chris Owen

On Oct 5, 2009, at 1:43 PM, Wayne E. Bouchard wrote:


Whenever you declare something to be "inexhasutable" all you do is
increase demand. Eventually you reach a point where you realize that
there is, in fact, a limit to the inexhaustable resource.


This is where I think there is a major disconnect on IPv6.   The size  
of the pool is just so large that people just can't wrap their heads  
around it.


2^128 is enough space for every man, woman and child on the planet to  
have around 4 billion /64s to themselves.   Even if we assume everyone  
might possibly need say 10 /64s per person that still means we are  
covered until the population hits around 2,600,000,000,000,000,000.


Chris

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Re: Important New Requirement for IPv4 Requests [re "impacting revenue"]

2009-04-21 Thread Chris Owen

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On Apr 21, 2009, at 4:42 PM, Shane Ronan wrote:

C) Are ARIN's books open for public inspection? If so, it might be  
interesting for the group to see where all our money is going, since  
it's obviously not going to outreach and solution planning. Perhaps  
it is being spent in a reasonable manner, and the fees are where  
they need to be to sustain the organizations reasonable operations,  
but perhaps not.



It is a little out of date and not terribly detailed but they did post  
the 2008 budget at:


https://www.arin.net/about_us/corp_docs/budget.html

Budget is just over 13M.  About 1/2 of that is salaries/benefits  
(maybe more if you add in 'legal fees').


A couple of interesting notes when looking at it:

12+M divided by the 3300 "members" is just shy of $4,000 per customer.

Payroll is $5,707,134 for 47 full time employees.  That is an average  
salary of $121,428 across all employees.


Internet Research and Support is $164,500

Travel (which includes travel for board members, etc) is $1,315,349.

There is more detail but older data at:

https://www.arin.net/about_us/corp_docs/annual/2007_audited_financials.pdf

Chris

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Re: Important New Requirement for IPv4 Requests [re "impacting revenue"]

2009-04-21 Thread Chris Owen

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On Apr 21, 2009, at 11:01 AM, John Curran wrote:


   C) We've routinely lowered fees since inception, not raised them.



Well I'm not sure what your definitely of "routinely" is, but we've  
not seen in decrease in our fees any time in the past 8 years.


Chris

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Re: Important New Requirement for IPv4 Requests

2009-04-21 Thread Chris Owen

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On Apr 21, 2009, at 5:49 AM, Frank Bulk - iName.com wrote:

It appears that ARIN wants to raise the IP addressing space issue to  
the CxO

level -- if it was interested in honesty, ARIN would have required a
notarized statement by the person submitting the request.  If ARIN  
really

wants to get the interest of CEOs, raise the price!



And punish those that do play by the rules?  ARIN's prices are already  
crazy high for what they actually do.


Chris

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Re: Important New Requirement for IPv4 Requests

2009-04-20 Thread Chris Owen

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On Apr 20, 2009, at 9:04 PM, David Andersen wrote:

Just a thought:  A technical person might be very happy to lie to a  
toothless organization that holds no real sway over him or her,  
won't revoke the address space once granted, and for whom the  
benefit of lots of address space in which to play exceeds any  
potential pain from being caught, er, exaggerating their need for  
address space.


That same technical person might be less inclined to lie to a  
director of their company who asks:  "Are you asking me to attest,  
publicly and perhaps legally, that this information is correct?  If  
you're wrong and you make an ass of me, it's going to be yours that  
goes out the door."


Seems like a reasonable experiment to try, at least.



I agree there is no harm in the idea but as I was reading the  
announcement this morning I couldn't help but think "Too little, too  
late".


Chris

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Re: Managing CE eBGP details & common/accepted CE-facing BGP practices

2008-12-20 Thread Chris Owen

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On Dec 20, 2008, at 8:11 PM, Suresh Ramasubramanian wrote:

On Sun, Dec 21, 2008 at 6:52 AM, Justin Shore  
 wrote:
Does anyone have any preferred ways to manage their customer-facing  
BGP
details?  I'm thinking about the customer's ASN (SP assigned  
private ASN or
RIR assigned ASN), permitted prefixes, etc?  While I'm sure this  
could be
easily stored in a spreadsheet I'm not sure if there is any merit  
to storing


Heck, you could store all that in Rancid .. even cvs/svn

http://homepage.mac.com/duling/halfdozen/RANCID-Howto.htm


http://homepage.mac.com/duling/halfdozen/RANCID-Howto.html

Chris

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Re: hat tip to .gov hostmasters

2008-09-22 Thread Chris Owen

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On Sep 22, 2008, at 9:59 AM, Simon Vallet wrote:


On Mon, 22 Sep 2008 10:52:42 -0400
"Jason Frisvold" <[EMAIL PROTECTED]> wrote:


I'm not much up on DNSSEC, but don't you need to be using a resolver
that recognizes DNSSEC in order for this to be useful?


You do -- and last time I checked few native resolvers actually did :
glibc doesn't, and I'd be surprised if the Windows resolver does


Chicken, meet egg.

I think the point of the original post is that one end or the other  
has to start things.  At least we have one US zone doing something on  
the server end of things.


Chris

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Re: REJECT-ON-SMTP-DATA (Re: Mail Server best practices - was: Pandora's Box of new TLDs)

2008-07-01 Thread Chris Owen

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On Jul 1, 2008, at 4:54 AM, Jeroen Massar wrote:


Chris Owen <[EMAIL PROTECTED]> wrote


I did not write this FYI.


It is because, if someone reports (by telephone, IRC or IRL) that he
sent an email and I did not receive it, I regard as VERY IMPORTANT to
be able to check the spam folder (with a search tool, not by hand)  
and

go back to him saying "No, we really did not receive it".


The magic keyword: REJECT-ON-SMTP-DATA.

Aka during the "DATA" phase of the email, also directly scan it,  
then when the spam/virus tool thinks it is spam/virus, you just  
reject it.


This solves a couple of things in one go:

- No more 'spam' folder, as the stuff that is spam is already  
rejected.
  You might get a few mails through that are actually spam, but this  
is

  mostly marginal.


The lack of a spam folder is one of the problems with such a  
solution.  Having a middle ground quarantine is actually quite nice.


However, the biggest problem is these solutions are global in nature.   
We let individual customers considerable control over the process.   
They can each set their own block and quarantine levels, configure  
their own white and blacklists and even turn the spam controls  
completely off.  For various reasons none of that would be possible  
with this solution and all the implementations you link to all run  
with a single global configuration.


Chris

~~~~
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President  ~ Wichita (316) 858-3000 ~A stupidity tax
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Re: Mail Server best practices - was: Pandora's Box of new TLDs

2008-06-28 Thread Chris Owen

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On Jun 28, 2008, at 4:56 PM, Jean-François Mezei wrote:

The biggest problem however are outfits like microsoft whose hotmail/ 
msn

properties have undocumented logic which confirm reception of the
message at the SMTP/821 level but then proceed to discard the email
instead of delivering it to the person's inbox (or spam folder).


At some point what is the difference between putting the mail into a  
spam folder and sending them to /dev/null?


Yesterday I received 4,932 emails.  294 of those went into my inbox.   
36 of those went info my quarantine folder.  The other 4,602 went  
straight to /dev/null (actually many of them went through various  
blacklist building scripts first).  Had I put the full 4,638 into a  
"spam folder" that would have been completely worthless.  It would be  
impossible for me to actually review all those emails.  Ultimately,  
there wouldn't be any difference between that and /dev/null.  The only  
difference is I would have deleted them later rather than when they  
came in.


So should I have bounced all 4,602?  Since ninety some percent of them  
came from forged addresses that would not only be pointless but would  
be contributing to the problem (and get us into bl.spamcop.com).


The size of the problem presented by spam is just enormous.  Before we  
started selective greylisting, we used to accept a million messages a  
day.  Of those we only delivered about 50,000.  And that's for a  
system only handling about 5,000 email accounts.  I can't even imagine  
having to do that on the scale hotmail is talking about.


Chris

~~~~~~~~
Chris Owen ~ Garden City (620) 275-1900 ~  Lottery (noun):
President  ~ Wichita (316) 858-3000 ~A stupidity tax
Hubris Communications Inc  www.hubris.net




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Re: [NANOG] Level3 not honoring Broadwing contracts?

2008-04-29 Thread Chris Owen
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On Apr 29, 2008, at 10:43 AM, Edward B. DREGER wrote:

> But the facility Chris referenced is half-full -- at best.  Not only  
> is
> space plentiful, but cooling and electrical have plenty of reserve.   
> The
> price still would be reasonable at a higher rate.

We would disagree.  In fact, if we had not done so already this would  
have convinced us to take the previous poster's advice and built our  
own facility (just across the hall).

Chris

~~~~
Chris Owen ~ Garden City (620) 275-1900 ~  Lottery (noun):
President  ~ Wichita (316) 858-3000 ~A stupidity tax
Hubris Communications Inc  www.hubris.net




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Re: [NANOG] Level3 not honoring Broadwing contracts?

2008-04-29 Thread Chris Owen
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On Apr 29, 2008, at 7:17 AM, Deepak Jain wrote:

> But if you are looking for Level 3 to make any sense, you are going to
> be waiting a long, long, long time with the rest of us.
>
> They have never successfully "sold" much in their brief history. They
> have successfully acquired lots, and lots, and lots of revenue and  
> then
> burned it off fabulously quickly.

Yea, we were a Telcove customer and recently talked to our new Level3  
salesperson (200 miles away).  He basically told us they wouldn't be  
selling us anything new in the future (at any price) but it probably  
wouldn't matter because they would also be "rerating" our colo charges  
too.  This in a datacenter that is at least 1/2 empty.

It was clear from the conversation that he never considered for a  
moment that we might actually pay the new rate.  He just assumed we  
were gone as soon as it happened.  Obviously I don't have a business  
degree because I don't understand the business model of buying up  
business and then going out of your way to chase off their customers.   
The Level3 higher ups must see something I don't.

Chris

~~~~~~~~
Chris Owen ~ Garden City (620) 275-1900 ~  Lottery (noun):
President  ~ Wichita (316) 858-3000 ~A stupidity tax
Hubris Communications Inc  www.hubris.net




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Re: Problems sending mail to yahoo?

2008-04-10 Thread Chris Owen


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On Apr 10, 2008, at 1:35 PM, Jeff Shultz wrote:

This thread got me checking logs and I just spotted several of those  
"deferred due to user complaints" tags. And compared to them, we're  
tiny. Don't know if it's widespread, but it appears you are not the  
only one so blessed.


We've seen this before too but this week it has been different.  Every  
single host that relays email on our network has these in the queue.   
Now a couple of them do mailing lists and such so I could see it  
happening but a couple of them don't do anything high volume at all.


For some of them some mail goes through but only some of the time.  It  
seems like if we hit the right MX machine it works and other times it  
does not.


We tried going around them by sending mail over to an employee's  
personal mail server (which does nearly no volume at all) but even it  
is blocked probably 1/2 the time.


I'm not sure what is going on but given all this I can't believe it is  
just "normal".


We filled out one of those forms but just got back a response that  
said it wasn't happening but if it was we should see their "best  
practices" URL.  Only problem is we actually do everything on their  
list (including both DomainKeys and DKIM).


Chris


Chris Owen ~ Garden City (620) 275-1900 ~  Lottery (noun):
President  ~ Wichita (316) 858-3000 ~A stupidity tax
Hubris Communications Inc  www.hubris.net




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