jm + jim-gettys   3

Mythology about security…
A valuable history lesson from Jim Gettys:
Government export controls crippled Internet security and the design of Internet protocols from the very beginning: we continue to pay the price to this day.  Getting security right is really, really hard, and current efforts towards “back doors”, or other access is misguided. We haven’t even recovered from the previous rounds of government regulations, which has caused excessive complexity in an already difficult problem and many serious security problems. Let us not repeat this mistake…

I remember the complexity of navigating crypto export controls. As noted here, it was generally easier just not to incorporate security features.
security  crypto  export-control  jim-gettys  x11  history  x-windows  mit  athena  kerberos 
10 days ago by jm
Traditional AQM is not enough!
Jim Gettys on modern web design, HTTP, buffering, and FIFO queues in the network.
Web surfing is putting impulses of packets, without congestion avoidance, into FIFO queues where they do severe collateral damage to anything sharing the link (including itself!). So today’s web behavior incurs huge collateral damage on itself, data centers, the edge of the network, and in particular any application that hopes to have real time behavior. How do we solve this problem?

tl;dr: fq_codel. Now I want it!
buffering  networking  internet  web  http  protocols  tcp  bufferbloat  jim-gettys  codel  fq_codel 
july 2013 by jm
Jim Gettys and a star-studded cast explain the 'bufferbloat' problem breaking TCP/IP on modern consumer broadband
'the [large] buffers are confusing TCP’s RTT estimator; the delay caused by the buffers is many times the actual RTT on the path.' [..] 'by inserting big buffers into the network, we have violated the design presumption of all Internet congestion avoiding protocols: that the network will drop packets in a timely fashion.'  QoS traffic shaping avoids this -- hooray for Tomato firmware
jim-gettys  via:glen-gray  buffering  tcp  ip  internet  broadband  routers  from delicious
december 2010 by jm

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