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Internet Goodness, Linux Administration, Open Source, Video, Virtualization (Virtualisation) »

[1 Apr 2009 | 5 Comments | ]

For my future reference. DimDim is an open source web conferencing and meeting software with the following features:

No Install to Host/Join meetings
Easy Share Screens&Webpages
Audio & Video Conferencing
Present PowerPoint and PDFs
Private & Public Chat
Whiteboard & Annotations
Record and Playback Meetings
Open Source and open APIs
SynchroLive Co-Browsing
Free Recording & Archiving
Mac & PC Screen Sharing (no Linux??)
Multiple Presenters
Free Teleconferencing Calls
Secure, Private Meetings
Faster and Easier than ever
No Install to Host meetings

It’s available as a vmware virtual appliance or for those of you using Qemu / KVM / Xen, you should be able to convert the image …

Apache, Linux Administration, Open Source, Web Development »

[29 Jan 2009 | No Comment | ]

Hopefully this helps me or someone else with the same issue in the future

suhosin[25917]: ALERT – configured POST variable limit exceeded – dropped variable ‘task_com_morfeoshow[]‘ (attacker ‘xxx.xxx.xx.xxx’, file ‘/home/user/public_html/administrator/index.php’)
in your php.ini (or suhosin.ini depending on your setup)
[suhosin]suhosin.post.max_vars = 2000suhosin.request.max_vars = 1000

Technorati Tags: suhosin, apache, joomla

Bash, Linux Administration, Open Source »

[19 Oct 2008 | 2 Comments | ]

Sometimes I forget what power there is in free software. I put this quickie together the other day. Just be aware that it won’t handle any spaces in the PDF filename.
for i in *.pdf;do pdfimages $i ${i%.*};done && for i in *.ppm;do ppmtojpeg $i >> ${i%.*}.jpg;done; rm -f *.ppm
images are exported as
-00n.jpg – ie: the n’th image found in the pdf.

Linux Administration »

[29 May 2008 | No Comment | ]

Here ’tis
w | awk ‘{a[$1]++}END{for(i in a){print a[i] ” ” i}}’ | sort -rn | head
stumbled on this issue with a HP-UX server we run where the maxusers kernel paramater is set to 600 (512 by default). To change this setting, requires a reboot of the server (something not easily achievable at midday with 600 users logged in). You can change kernel parameters via SAM in HP-UX
This is a slight modification of the 1 liner that sorts your bash history by commands used:
history | awk ‘{a[$2]++}END{for(i in a){print a[i] ” …

Cross-Platform, Linux Administration, Open Source, Video »

[29 May 2008 | 6 Comments | ]

I haven’t spent much time with Video editing / DVD authoring on either Linux or Windows. Mostly because I don’t watch much video except for a wierd philia for watching Cop Chases on Youtube or at the other end of the spectrum, watching the extremely interesting TedTalks using Miro or Google Tech Talks.
Anyway, my sister-in-law purchased a Mini-DVD Sony camera. It just so happens that Linux doesn’t support this format at the moment (though Windows 2003 doesn’t natively either), so be warned. Anyway, we managed to use Sony’s software to …

Bash, Linux Administration »

[28 Apr 2008 | No Comment | ]

Here’s a simple method of automatically muting your volume overnight and resetting it in the morning. This is especially good for those who use softphones, skype or an IM client that have sound alerts output to speakers.
We are going to use three command line tools for this: aumix, which and cron. We are also only going to set things up so the commands are run under the user account, rather than as root as cron used incorrectly can open up some security issues.
so, to get started try and run:
:~$ aumix
and …

Django, Finance, Linux Administration, Open Source, Philosophy, Political, Rant »

[4 Nov 2007 | No Comment | ]

Yesterday, I was searching around for a Critique of Neale Donald Walsch after watching the DVD “Conversations with God” – I have already read all three books of his Conversations with God series and whilst it didn’t present to me any new and revealing ideas about life, god and living in general, it did act as a reminder of the ones I already have. I have known about Book 1 for almost as long as it’s been out but never picked it up as I considered it would be too …

Linux Administration »

[24 Oct 2007 | No Comment | ]

I have read quite a bit about Lisp before and most of it, frankly went over my head as a non-programmer except bar a few articles of Paul Graham’s on Lisp. Paul is one of the brainchild(ren??) behind ViaWeb which is now Yahoo Shopping and the author of a number of books: ANSI Common Lisp, Hackers & Painters and On Lisp, which you can download here
Today, I happened to come across this link and the guy in the picture just happens to be John McCarthy, the man who designed …

Linux Administration, Unix & Solaris, Virtualization (Virtualisation) »

[1 Oct 2007 | No Comment | ]

Some really bizarre results here that just blew my mind. Check out the “rate” column for both random writes and random reads and compare the Ext3 Ubuntu with Nexenta VM for both UFS and ZFS – UFS is a bit quicker the ZFS. I am not sure whether the virtualisation actually improves the random reads and writes but it’s a pretty massive difference. After my small play with Nexenta, it’s looking quite promising to become my primary desktop OS.
Here’s a tiobench of Ubuntu 7.04 running on a Seagate ST3320620AS 320GB …