Cisco Expo 2007

we just finished Cisco Expo, and there’s a lot of feedback and comments all around the internet - on ccie.pl or for example at barni.LOG. next week i should be able to present at SecureCON (well, if this time i’ll be able to get there in the first place :) ). i’ll be delivering a session about attacking and defending computer networks.

October 11, 2007 · Łukasz Bromirski

conferences, conferences

i’ll be presenting soon on following events: Noc Linuksozerców, in Kraków, 25-26 February FreeCON 2006 in Wrocław, 22-23 April CONFidence 2006 in Kraków, 13-14 May if you’d like to hear something specific during the sessions with regards to routing or security, please send me an email.

January 28, 2006 · Łukasz Bromirski

VoIP telephony

for all of those that are starting to make first steps with VoIP, or believe know everything - i’d like to highly recommend my fathers book that was just published via BTC publishing house. it covers both H.323 and SIP protocols, along with all auxiliary topics - like integration, and signaling over middleboxes like packet filters and stateful firewalls: Telefonia VoIP. Multimedialne sieci IP, Marek Bromirski, ISBN: 83-60233-07-1

January 20, 2006 · Łukasz Bromirski

83.0.0.0/11 TPNET AS5617

IANA announced on 3rd of november, that it passed over 80/8, 81/8, 82/8, 83/8 and 84/8 control over to RIPE. thats nice, but the problem is lazy network and security admins obviously didn’t yet update their ACLs and firewall rules, which means new Neostrada+ TP S.A. users have problems reaching anything in the internet from 83.0.0.0/11 address space. do your job, admins! missing such announcement for over 90 days doesn’t look good! ...

December 17, 2003 · Łukasz Bromirski