canvas fingerprinting... and unbound

some time ago I changed my BIND at home to Unbound, due to the change of the default DNS server in FreeBSD (yes, I do have my own DNS server at home, and it serves all local queries). actually, I have four right now ;) back in BIND times, i used a lot of scripts to add zones containing 127.0.0.1 for domains serving ads. after switching to Unbound - i forgot about it completely. ...

July 24, 2014 · Łukasz Bromirski

your social tab is empty...

June 14, 2014 · Łukasz Bromirski

"it's better not to know...

it’s better not to know, how thick the wall is. you may have too short run. anonymous

June 10, 2014 · Łukasz Bromirski

gimme more!

quite recently i described my own new workstation. it has dual Xeon processors, and today i decided to upgrade memory from 128GB to 256GB (yeah, i use to run a lot of VMs). so below you can see the outcome - 256GB RAM, 2 physical CPUs, 16 cores, 32 threads: great advantage of having such beast at your disposal is that you simply can run everything thrown at it. it’s quiet, it’s effective and it also doubles as great gaming station. on the other side, i’m constantly asking myself a question - “which part of ocean i’m warming up right now?”. ...

June 8, 2014 · Łukasz Bromirski

essentialism #2...

…gave me food for thought. i counted 18 books in different places around my house, that i was trying to read at the same time. today in the morning i decided it doesn’t make any sense, and it’s exactly the opposite approach i should take. so, books landed in stack, into nice queue. i’ll be reading two books at the same time from today onwards - starting with ’essentialism’ and Pratchetts ‘Raising Steam’. ...

June 7, 2014 · Łukasz Bromirski

essentialism...

…i’m reading right now an interesting book - Essentialism. it beatifully demonstrates how to decide where it is worth to invest your time and energy. and it gives you great framework for doing just that. another theory, you’ll say? well, 37signals, builders of the great web apps announced they’ll… drop all other projects and focus on only one - Basecamp. that’s how you put theory to practice. by the way - i highly recommend all of the 37signals books, they’re great source of proven advices how to build your own business and how to choose paths in life. ...

May 23, 2014 · Łukasz Bromirski

standards...

…or who needs them anyway today? there’s interesting article written down by one of Google employees, that perfectly describes how ineffective today standard bodies are, and how less and less influence they have on the market. cisco decided to spearhead new solutions without waiting for multi-year discussions, true to the ‘good description and working code’ motto. if we wouldn’t be doing that, there would be no PVLANs, FabricPath (TRILL) but also protocols like LDP or HSRP/VRRP/GLBP. ...

May 22, 2014 · Łukasz Bromirski

ASA 9.2(1)

…supports BGP and it’s already out. do you like BGP on your firewalls? i don’t. should we have the tool in hand, just in case? well, sometimes it’s handy. but going back again - do you like BGP on your firewalls? ;)

April 27, 2014 · Łukasz Bromirski

some weekend reading...

in 2002 it was calculated that to reach closest star (Proxima Centauri), multigenerational crew would need to start with at least 150 to 180 men and women. latest simulations show however, that to guarantee gen variance you’d need to take between 10000 and 40000 people onboard. it would be interesting to see how those plans will end up - we will stay on Earth until Sun burns out, we’ll kill each other or maybe we’ll start finally intergalactic travels? ...

April 5, 2014 · Łukasz Bromirski

ipv6... once again in bad spotlight

all memory and CPU related features in IPv6 world is major challenge even for modern hardware. unfortunately this is emphasized with lack of best practices followed by developers writing code. i just noticed there’s Microsoft Windows problem with IPv6 RA. it seems that actual problem is not limited only to RA, but actually - to the whole networking stack when working with link-local addresses. under Microsoft Windows code is allocating memory pretty recklessly. ...

April 1, 2014 · Łukasz Bromirski