All posts by Simon Major

About Simon Major

Linux / UNIX System Administrator ♦ Application Troubleshooter ♦ Infrastructure Architect . . . . . and all round nice guy. Google Plus

Using a Webcam with Skype on (Ubuntu) Linux

Skype is 32bit application that does express fully express it dependencies on a 64bit platform. Your webcam may not be detected even if it is usable in other native apps. For some native apps and the missing 32bit libraries on 64bit Ubuntu run:
sudo apt-get install cheese guvcview libv4l-0:i386 libv4lconvert0:i386

No CSS on the BBC as OpenDNS thinks they have a botnet!

… but as they are secondary requests there is no obvious alert.

Last night the it looked lije all the CSS had disappeared on the BBC in my security laden default Firefox browser. Usually it would be some new change that I would need to white-list, but I couldn’tsee anything. Maybe the BBC are having a wobble? I leave it until this morning, but it did not recover so further digging was required. No CSS on any BBC site, for any user, in any browser – a network level issue then. Having a look in the web console all the CSS from was 404’ing. Is that site up? Ah-ha, it is only then we get a nice big splash screen telling me that OpenDNS has blocked that site for hosting malware or a botnet. My OpenDNS dashboard informs the following two doamins have been blocked as hosting botnets:


A quick look doesn’t reveal any reports or discussion on the net.

lssave write IO on OS X

Seeing unexpected write IO in Activity Monitor, had a look with:

sudo iotop 2>/dev/null

And lssave is the culprit. Then you want the following:

sudo /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain system -domain user

Or a more verbose:

sudo /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -v -lint -domain local -domain system -domain user 2>&1 | grep -v 10811 | grep -E -B 1 -A 2 "Can't|Error"

(May 2011) RUM + New Relic + Joyent + Souders = Yummy

How we provide real user monitoring: A quick technical review | New Relic blog

How we provide real user monitoring: A quick technical review

This week New Relic released a whack of new and cool stuff. One of the coolest of the new is Real User Monitoring (RUM). Based on the javasrcipt library created by Google’s Steve Souders, RUM shows you what performance issues your actual users are experiencing on your site, right now. Finally you can see beyond the app tier. After all, even when things are performing fine on the server, who knows what’s happening on the network and in the browser? New Relic.

via How we provide real user monitoring: A quick technical review | New Relic blog.