lukasz.bromirski.net

my 256GB SSD drive in MacPro 2013 started to fill up recently. i went on short googling to see how to extend it without relying on NAS of course. and i get nice offer. it seems that good people in the internet found a way to interface typical NVMe disk dr…

…if everyone is trying to make your life harder. couple weeks ago I refreshed my private email server on FreeBSD. for some time spam levels were raising and I had to do something about it. old spamassassin was not handling it accurately enough anymore. en…

during one of the design discussions with one of our Customers, I had a chance to discuss a bit about using anycast to scale out delivery via CDN. unfortunately, as more ads served even on popular sites is malware or even miners for different cryptocoins…

6:51 AM, 30 APRIL 1975: SWIFT 22 IS OUTBOUND WITH 11 PAX ON BOARD INCLUDING THE LZ COMMANDER.

one of my friends once (pretty accurately) pointed out that I have a “short fuse”.

my whole summer vacation this year is a week by the sea. however, I was able anyway to catch up my reading backlog from last few weeks - books put aside and waiting patiently in their queue. so let’s go faster this time, but through the whole list: Matthew

have you thought recently how oversubscribed are acronyms you’re using daily if you’re in IT?

my old poor LSI 9211-8i RAID card, that was powering my cache NAS server, decided to die. my spare 9261-8i, to my complete suprise, was halting FreeNAS at the boot… and i was not able initially to troubleshoot the problem. it was dropping mysterious timeo…

after being absent on three PLNOG editions, i finally made it to the conference and to agenda. my presentation slides are here. i tried to cover everything important from networking perspective starting from IMP and ending on NPU, reprogrammable ASICs and…

some of us know it better, some worse, and the rest haven’t heard or thought about it (or claims “i don’t need it”) work ‘in the zone’ got popular immediately after world ended being enchanted by open spaces and mandatory offices, and got back to using ro…

during the last 30 years, processor speeds has increased from millions of cycles to billions - multiplied by multi-core and special mechanisms that increase the efficiency of working with ‘boring’ cores.

we’re moving in interesting direction as humanity. it’s another proof that we live in interesting times.

NASA spent recently a lot of effort (and i suspect - money) to find Fortran proficient developer to rewrite code working still on Voyager. ideal candidate was found finally at NASA. this begs a question - how much you can do in Fortran having 64kB of RAM…

somewhere around 2013 (and precisely - for ‘small’ Santa Claus, so 6th of December), OpenSSH was extended to provide new way of storing keys. it’s important because the old format - MD5 hash - can be cracked veeeeery quickly. developers decide to use modi…

FreeNAS is special edition of tuned-up FreeBSD, with GUI available over WWW to enable easy setup and maintenance. i had to migrate recently my old Synology 1815+ thanks to well known Intel SNAFU with Atom CPUs. interestingly enough, even Synology own serv…

getting grip of reality after moving is not easy in some situations. when everything is still fresh, and on the other hand - so well known :) you know obviously that stopgaps tend to last for years after they were put “just for a moment”?

OpenSSH 7 among other things discontinued older key exchange protocols for Diffie-Hellmans group 1 (diffie-hellman-group1-sha1). we already know that it can be compromised by executing attack known as Logjam. that’s all good and nice, until you try to con…

i was travelling recently to US and back, essentially sitting for a 10+ hours in planes each way. i decided to invest in myself, and bought myself a gadget - my friend praised it years ago. i’m talking about active noise cancelling headphones - Bose QC35.…

…and that’s good thing. with only two weeks to seventeed edition of PLNOGa we have bunch of interesting news. conference, that we started by discussing BGP, MPLS-TE and RSVP and role of 10GE interfaces (we’re in Europe and that was 2009!)

it’s hard to disagree with Bruce’s article. would blockchain-based solution be the best approach here for accounting?

how bad our current patent system needs to be broken, to allow building companies just to do business on patent trolling?

…resent encryption. in particular those that were caught red handed doing mass surveillance of its own and foreign citizens. it’s worth to read this article to understand how PR (written by Camerons speech author) is trying to turn everyone using security…

while observing how people tend to behave in so called “serious situations” and “serious environment” I began to create different theories. as i’m lacking background in psychology i was not proficient in doing that, but then I stumbled upon this article.…

every two (or three, depending how desperate you are) years, in life of every CCIE and CCDE there is this looming deadline called ‘recertification’. panic is usually short lived and ends with ‘push’ - succesful recertification. in variable styles and tech…

…discussions were already covered on my blog. arstechnica just published A/B/X test of Ethernet cables capable of suspiciously “enriching” sound and as you can imagine… there’s no difference in those priced at 340$ vs those priced at 2.5$. it’s good laugh…

Life is unfair.

interesting blog article how to create truly free way of publishing without fear of censorship. it seems that the last reddit problem restarted discussion about free speech and crypto non-repudiation of published content. in the context of rising pressure…

…this is how you should build lean IT systems. in particular, I like this quote: And the new login system, which MPL launched in February 2015, is remarkable.

…are of course one of the worst and evil habitats in this world. treating passengers like cattle during the entire process of boarding and exiting the plane (let’s not skip the “joyful” stage of buying a ticket, let alone attempting to modify it later) has

The best revenge is massive success.

i’m ten pages into an ethernet-phy manual and i’m pretty sure the internet is impossible bike

weekend at countryside kind of suprised me… :) so, Cisco 887VAGW+7-E-K9, a little configuration and here we are. !

it’s interesting to take a look. and then a second look - as a lot of well known networks and hosts appear on those maps: SenderBase malware SenderBase spam and for general SenderBase reports, biggest threat intelligence network go here: SenderBase

you stumble on audiophile-driven discussions, related to exploiting their customer base.

twitter and facebook admit, that at least 10 percent of the user base is likely bots. it’s “official” data, but that article shows, that this estimation may be way undersized. it seems that next dot-com bubble slowly grows and should burst soon. we’ve been

failure that Tidal came to be and at the same time success to which Apple Watch is experiencing (the same that has trouble keeping it’s bettery up for ONE day) is troubling. on one side we have market, that is able to verify this poor and blatant run for…

You must never confuse faith that you will prevail in the end—which you can never afford to lose— with the discipline to confront the most brutal facts of your current reality, whatever they might be.

after stumbling upon Farnam Street blog, i found another one - that of Mark Manson. and i found it thanks to The Subtle Art of Not Giving a Fuck article. after reviewing this short list i realized how many of those advices i could give to myself seven yea…

it’s subject old as world (password-protected world, that is). i had to do some of cleanup on my devices and i hit a problem with 4096 bit keys. so, just as a reference that may be helpful somewhere for someone - you import keys to Cisco IOS without any s…

google again dropped out of the internet because of failure to filter prefixes.

“Picture a tall, dark figure, surrounded by cornfields… NO, YOU CAN’T RIDE A CAT.

I was taking part of PLNOG for the last two days. i didn’t have opportunity to take part of the last edition and it’s a shame - we created this conference with Andrzej Targosz. a lot changed during last couple of years. but what was always key of the whole

…because of that, for example. contrary to ‘beliefs’ and dogmas, that until being ridiculed are broadcasted widely, only the scientific method works. actually works. it allows us to continously attempt to verify by experiment our theories, build theorems…

from everything read up to date and noted as worth reading: Think like a freak - great set of anecdotes coming strait from author real experiences. there’s a lot of examples that if you don’t know that something can’t be done - you’ll succeed and amaze pe…

while looking through recent IETF meeting notes i found interesting idea - splitting OSPF area zero without incurring outage. it’s very interesting idea for flawless, in-service migrations. on the other side, another OSPF concept that I was afraid somebody

quite recently Piotr Jabłoński, one of the best architects and consultants in Polish Cisco Systems office presented session very similar to this post topic during our CCIE club meeting. independently, this topic is often brought back on CCIE.pl forum, and…

as I read a lot of books, at some point I decided to share those worth mentioning here. partly so you can see what I’m reading, partly - to have a good summary about those books. let’s start - over last two weeks I’ve managed to read: How Google tests sof…

i’m just finishing upgrading my different servers from FreeBSD 9 to FreeBSD 10.1-STABLE.

it seems that F-35 can’t end it’s failure series. despite GAO audits, model of building military equipment for biggest army in the world didn’t change a bit since end of second world war. they’re still ordering and building things that will bring maximum…