Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-27 Thread Luke S. Crawford
On 03/26/2014 11:14 PM, Owen DeLong wrote: Why not just use private VLAN layer 2 controls for the privacy you describe? The technology I know of is what cisco calls 'protected ports' - My understanding is that those simply mean you can't pass traffic to or from other 'protected ports' - I

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-27 Thread Luke S. Crawford
It might make sense to just give everyone their own vlan and their own /64; that would, of course, bring its own problems and complexities (namely that I've gotta have the capability to deal with more customers than I can have native vlans - not impossible to get around, but significant

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Luke S. Crawford
On 03/24/2014 06:18 PM, Owen DeLong wrote: DHCPv6 is no less robust in my experience than DHCPv4. ARP and ND have mostly equivalent issues. This depends a lot on what you mean by 'robust' Now, I have dealt with NAT, and I see IPv6 as a technology with the potential to make my life less

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Luke S. Crawford
On 03/26/2014 03:49 PM, Matt Palmer wrote: On Wed, Mar 26, 2014 at 10:55:03AM -0700, Luke S. Crawford wrote: There are many ways to skin this cat; stateless autoconfig looks like it mostly works, but privacy extensions seem to be the default in many places; outgoing IPv6 from those random

Re: Evaluating Tier 1 Internet providers

2013-08-29 Thread Luke S. Crawford
On 08/29/2013 07:43 PM, Blake Dunlap wrote: +10 Good explanation. This is a lot of why I have someone like Cogent/L3/etc and some random transit provider in most of my pops I spec, plus a backhaul to another node. ... One thing to keep in mind is that for major Tier 1s, it's not at all

Re: PDU recommendations

2013-06-23 Thread Luke S. Crawford
I also have had good experience with (used) servertech/century/power tower (I think all the same brand) - very inexpensive; if you are in santa clara I have some spare 2u 16 port 208v (20a/c19) units. Here is something a buddy wrote up when we were wiring them to the user-accessable power

Re: LinkedIn password database compromised

2012-06-08 Thread Luke S. Crawford
On Wed, Jun 06, 2012 at 07:43:42PM -0700, Aaron C. de Bruyn wrote: Why haven't we taken this out of the hands of website operators yet? Why can't I use my ssh-agent to sign in to a website just like I do for about hundred servers, workstations, and my PCs at home? One local password used

Re: Industry practice for BGP costs - one time or fixed/monthly?

2012-05-27 Thread Luke S. Crawford
On Sun, May 27, 2012 at 12:34:22PM +1000, Matthew Palmer wrote: On Sat, May 26, 2012 at 09:39:16PM -0400, Luke S. Crawford wrote: On Sat, May 26, 2012 at 10:06:03AM +1000, Matthew Palmer wrote: ... Feel free to turn the process around -- decide what the service is worth to you, tell

Re: Industry practice for BGP costs - one time or fixed/monthly?

2012-05-26 Thread Luke S. Crawford
On Sat, May 26, 2012 at 10:06:03AM +1000, Matthew Palmer wrote: We pay what our providers think they can get away with. Like most pricing decisions, they're not based on any technical logic, they're based on what the market will bear. Feel free to turn the process around -- decide what the

Re: ISPs and full packet inspection

2012-05-24 Thread Luke S. Crawford
On Thu, May 24, 2012 at 08:50:47AM -0400, not common wrote: Hello, I am looking for some guidance on full packet inspection at the ISP level. Is there any regulations that prohibit or provide guidance on this? Unless you are absolutely huge, and maybe even then, you need to worry more

Re: Squeezing IPs out of ARIN

2012-04-28 Thread Luke S. Crawford
On Tue, Apr 24, 2012 at 01:32:17PM -0400, ad...@thecpaneladmin.com wrote: Anyone have any tips for getting IPs from ARIN? For an end-user allocation they are requesting that we provide customer names for existing allocations, which is information that will take a while to obtain. They are

Re: Most energy efficient (home) setup

2012-04-15 Thread Luke S. Crawford
On Sun, Apr 15, 2012 at 10:52:51AM -0500, Jimmy Hess wrote: Consider that the probability 16GB of SDRAM experiences at least one single bit error at sea level, in a given 6 hour period exceeds 66% = 1 - (1 - 1.3e-12 * 6)^(16 * 2^30 * 8).In any given 24 hour period, the probability of at

Re: Question about peering

2012-04-07 Thread Luke S. Crawford
On Sat, Apr 07, 2012 at 06:16:30PM -0400, Robert E. Seastrom wrote: Sometimes making the AS path as short as possible makes a lot of sense (e.g. when trying to get an anycast network to do the right thing), but assumptions that peering results in lower costs are less true every day. I keep

Re: Question about peering

2012-04-07 Thread Luke S. Crawford
On Sat, Apr 07, 2012 at 07:25:24PM -0400, Robert E. Seastrom wrote: Generally the costs of transit are pushed down by competition. As a vendor your costs for bandwidth/transport/port*bw may drop but you are unlikely to drop your prices to your customers merely because your costs have gone

Re: last mile, regulatory incentives, etc (was: att fiber, et al)

2012-03-24 Thread 'Luke S. Crawford'
On Sat, Mar 24, 2012 at 02:42:36PM -0500, Frank Bulk wrote: I've been many times where you were, frustrated that I didn't know the dark fiber options for a potential opportunity, but you have to remind yourself don't have a *right* to know where *private* fiber is. It's not just the physical

Re: last mile, regulatory incentives, etc (was: att fiber, et al)

2012-03-22 Thread Luke S. Crawford
On Thu, Mar 22, 2012 at 01:31:47PM -0400, Jared Mauch wrote: You agree on a price per distance (e.g.: mile/foot/whatnot). Lets say the cable costs $25k to install for the distance of 5000 feet. That cable has 144 strands. You need access to one strand. If you install it yourself, it

Re: Flexible BGP liist?

2012-03-15 Thread Luke S. Crawford
On Thu, Mar 15, 2012 at 10:41:18PM -0400, Joe Maimon wrote: So we have a wiki list of 1U rack hosting. We do? where? all I see on http://nanog.cluepon.net is spam How about a list of SP's willing to configure BGP over whatever you got, including tunnels? And willing to allocate you space

Re: Botnet hunting resources (was: Re: DOS in progress ?)

2009-08-10 Thread Luke S Crawford
goe...@anime.net writes: On Fri, 8 Aug 2009, Luke S Crawford wrote: 1. are there people who apply pressure to ISPs to get them to shut down botnets, like maps did for spam? sadly no. ... Why do you think this might be? Fear of (extralegal) retaliation by botnet owners? or fear

Botnet hunting resources (was: Re: DOS in progress ?)

2009-08-07 Thread Luke S Crawford
, but if I could null route the source, it's just a matter of detecting abusive traffic, and with this attack, that part was pretty easy. -- Luke S. Crawford http://prgmr.com/xen/ - Hosting for the technically adept http://nostarch.com/xen.htm - We don't assume you are stupid.

Re: Why choose 120 volts?

2009-05-26 Thread Luke S Crawford
have to deal with cooling feel differently, but at my scale, that's all priced into the power.) -- Luke S. Crawford http://prgmr.com/xen/ - Hosting for the technically adept We don't assume you are stupid.

Re: integrated KVMoIP and serial console terminal server

2009-04-24 Thread Luke S Crawford
Joe Abley jab...@hopcount.ca writes: What is everybody's favourite combination rack-mount VGA/USB KVM-over- IP and serial console concentrator in 2009? I'm looking for something that will accommodate 8 or so 9600bps serial devices and about 12 VGA/USB devices, all reachable over IP via sane

Re: REVERSE DNS Practices.

2009-03-28 Thread Luke S Crawford
bmann...@vacation.karoshi.com writes: or - the more modern approach is to let the node (w/ proper authorization) do a secure dynamic update of the revserse map - so the forward and reverse delegations match. ... a -VERY- useful technique. I have a question. Is this an abuse problem? some

Re: Security Intelligence [Was: Re: Netblock reassigned from Chile to US ISP...]

2008-12-20 Thread Luke S Crawford
Brandon Galbraith brandon.galbra...@gmail.com writes: But it's definitely not cool when my credit card company cuts off my card due to abnormal charges when I'm abroad and suddenly can't get ahold of customer service via their international phone number. Automation in the right places works

Re: Security Intelligence [Was: Re: Netblock reassigned from Chile to US ISP...]

2008-12-19 Thread Luke S Crawford
Randy Bush ra...@psg.com writes: be specific, like if you run X tools the payoff will be Y. Yes. And where is the appropriate form for this?I find this sort of thing quite interesting; and yeah, it doesn't seem like the sort of thing NANOG is for, but most of the small ISP forms (like

Re: Security Intelligence [Was: Re: Netblock reassigned from Chile to US ISP...]

2008-12-19 Thread Luke S Crawford
Randy Bush ra...@psg.com writes: speaking as a small provider, I can tell you that I find running snort against my inbound traffic does reduce the cost of running an abuse desk. I do catch offenders before I get abuse@ complaints, sometimes. unfortunately snort does not really scale to a

Re: updating checking DNS zone files

2008-07-05 Thread Luke S Crawford
[EMAIL PROTECTED] writes: Apart from using Bernstein's tinydns, anyone have any scripts for looking for problems in zone files or for incrementing the serial number reliably? If you are using BIND, your problem is solved by DDNS and nsupdate. this has the added advantage of making it

Re: amazonaws.com?

2008-05-29 Thread Luke S Crawford
Peter Beckman [EMAIL PROTECTED] writes: If you are taking card-not-present credit card transactions over the ...snip hard to charge fradulent customers and also verifying customer identity annoys the customer... points- The goal here is to give abuse a negative expected return. One way to

Re: amazonaws.com?

2008-05-29 Thread Luke S Crawford
Peter Beckman [EMAIL PROTECTED] writes: ...snip use snort suggestion This is what I think we should ALL be doing -- monitoring our own network to make sure we aren't the source, via customers, of the spam or DOS attacks. All outbound email from your own network should be scanned by

Re: [NANOG] Charter Communications going to sniff traffic foradvertising?

2008-05-15 Thread Luke S Crawford
Christopher Morrow [EMAIL PROTECTED] writes: Oh, how do you know you can trust the VPN folks anymore than the cable-modem folks though? eventually the same cost issues are going to arise for the VPN folks as did for cable-modem/dsl folks (downward pressure on pricing and infra/opex/capex costs