Looking backward at last week or forward into next week. Ir Whatever.
unregenerate – adj. not reformed, unreconstructed, obstinate, stubborn
A Better Sound System
I’ve been “pining” for a better audio solution for my office and around the house for quite some time. I’ve been eyeing off Sonos product for quite some time but the price has been far out of my reach.
During a coffee break I checked eBay and realised there were some bargains. Result ? Bought a couple of second hand Sonos Play speakers
- Good: Sound quality is very good.No, really really good.
- Bad: The interface software (“apps”) for Mac & iOS is awful.
- Meh: The ability to stream music from the internet works because I have enough bandwidth.
- Bad: The Sonos app doesn’t allow for individual profiles and everyone shares the same playlists.
I went to Berlin last week for IETF and this is the only photo I got of me drinking beer there. In fact, this was the only beer I had and this seem grossly unfair.
(insert whiny complaint noise about working and travelling)
— EtherealMind (@etherealmind) July 20, 2016
Someone Elses Podcast
At #IETF96 in Berlin last week I was interviewed by Dan York for his podcast. One topic stands out where he asks about how I can criticise strongly whilst sounding more or less rational. Short answer, don’t make criticism personal. Blame the system, the environment and the situation that makes smart people do dumb things.
Also important, know that you are stupid and have done stupid things. We are all in this together.
Hardening a Mobile Device
This paper from Andrew ‘bunnie’ Huang & Edward Snowden made me think more carefully about the data exhaust we leave behind. This is whitepaper on how to secure your smartphone when you can’t trust the software on the device to be secure.
Our work proposes to monitor radio activity using a measurement tool contained in a phone-mounted battery case. We call this tool an introspection engine. The introspection engine has the capability to alert a reporter of a dangerous situation in real-time. The core principle is simple: if the reporter expects radios to be off, alert the user when they are turned on.
In networking, many of our protocols (HTTPS, DNS, NTP) expose clear text metadata that is being harvested and exploited by carriers. Exploited in the sense that this data is sold while most people are not aware.
Provoked me into thinking about physical security as a mostly solved problem.
Possible implication for cloud consumption in this line of thinking too. But much harder when you don’t have access to the hardware like you do a smartphone.
It was after reading the previous article that I was reminded of Skyport Systems from a presentation I received at Network Field Day 11 when Doug Gourlay gave a tour-de-force technical marketing presentation (as usual) and explained how Skyport Systems uses hardware to apply best possible security.
While we focus on software security we may forget that it is the penultimate layer. Hardware is still ‘final frontier’ for security.
"We haven't got time to automate this stuff, because we're too busy dealing with the problems caused by our lack of automation."
— John Arundel (@bitfield) March 13, 2014
Nice to meet you. I have one question that need your advise due to I am getting stuck on my IT work.
My manager asked me to upgrade IOS for all Cisco Router and Switch.
But I don’t know which IOS version should I upgrade.
So, how can I find the stable one to upgrade? Does Cisco have any recommendation tool or document?
There are no short answers to this question. Cisco’s overwhelming product diversity means that there are different answers for each business units, for each product family and even within a family. Each part of Cisco enterprises business operates differently, has different method .
Selecting a bug-free, reasonably reliable version of Cisco’s IOS is roughly akin to hunting for Pokemon on the moon.
I don’t have any viable answers. Anyone want to leave something in the comments ?
You can email me with your questions I might not answer them, I might put them here (anonymously) greg d ot ferro at packetpushers do t net
“AMD puts massive SSDs on GPUs and calls it SSG”
A single 4x version with 128 or 256GB of space on board is easily within the price range of high-end consumer GPUs and it would effectively wipe out most texture size limits.
An AMD GPU for a cost ~ $1000 per unit has more SSD than an average data centre Ethernet switch costing $50000.
Highlighting what is wrong with networking today. Why don’t our switches have 500Gb consumer SSD ? Answers on a postcard please.
There is no promotion here. Maybe there should be. Or maybe not. I don’t know. Other people do that.
Boss: How'd you fix the WAN problem ?
Me: I'm the WAN whisperer. Fear me
Boss: You ignored it.
— EtherealMind (@etherealmind) July 26, 2016