Finding a file based on contents
Posted by Kevster in Linux / *Nix on 02/11/2011
A quick tip (from my old notes) about how to find files on Unix/Linux, based on their contents
find . -exec grep thing '{}' \; -print
where thing is what you are looking for…
Awesome Multifactor Authentication – and Free !
Posted by Kevster in Carputer / Mobile Computing, Networking on 19/07/2011
If you have any need for strong authentication for *nix systems, WordPress, Juniper/Cisco VPN devices, RADIUS servers then check out http://www.duosecurity.com/
Its simply awesome and free for up to 10 users !
I’m using it for a variety of projects……
Quick Tip: 6500 Chassis Serial Number
Posted by Kevster in Networking on 22/06/2011
Why oh why Cisco ?
Most devices the serial number can been seen on a show version or similar prompt.
c6500’s are different……. use show idprom backplane instead
Orange + iphone4 + 3G = pile of shit
Posted by Kevster in Mobile Computing on 17/02/2011
I have been a loyal (?) customer of Oranges for over 15 years but am at the end of my tether with their network
I have an iPhone 4 and yes I know it’s a crap phone but why is there 3g network so bad. I am working in a ‘new’ town so would expect decent coverage but no. 3G lies like a cheap watch and is slower than manually setting GPRS, calls continually drop even when the phones showing 3 bars. The place I’m working for even uses Orange as a supplier for 3G and I’m not sure how they put it with the shoddyness.
I have the same issue at home but made even worse by continually swapping between Orange/T Mobile. Supposedly the result of their ‘everything everywhere’ initiative that feels like ‘nothing nowhere’
Take my advice. Leave or avoid Orange at all costs!!!!!
Windows 7– Offline files and SMB shares
Posted by Kevster in Linux / *Nix, Windows on 25/09/2010
Why is it so difficult for this to work out of the box ?
I’m currently using a hacked WD MyWorld NAS device that runs BusyBox, Optware and the latest release of Samba. You would think offline files would be easy to get working.
Wrong. See http://blog.rainiernetworks.com/2008/06/25/vista-synchronization-errors/ and http://justanothersysadmin.wordpress.com/2008/03/30/vista-offline-files-and-smb-opportunistic-locks/
Why oh why Microsoft not make the offline files function out of the box. I guess it works fine against a Microsoft server but in the spirit of greater interoperability fix it please !
Awesome Engineering
Posted by Kevster in Engineering on 08/05/2010
Some folks amaze me with their skill. Its a simple thing really but just works….. have a look
More more – shall we say ingenious – have a look at one of my fave sites 
Cisco CUCM/Call Manager – Running on Sun’s Virtual Box
Posted by Kevster in VMware / Virtual Box / HyperV, VoIP and UC on 02/02/2010
Well it is possible with a bit of hacking – but thats what its all about, isn’t it !
I actually used an existing working VM that had been built on VMware. I will test building one from scratch on VirtualBox but not 100% sure it will work….
Anyhooo…
1) Get the existing VMDK and copy it to your Virtual Box machine repository
2) Create a new VM using a Linux, Redhat, 1024MB RAM etc machine and set the disk as the VMDK
3) Modify the machine – I removed the sound card
4) Locate the machines XML config file. The directory is set in VirtualBox’es config. Edit it and add the following:
Add the following lines to it in the "<ExtraData> </ExtraData>" section: <ExtraDataItem name="VBoxInternal/Devices/pcbios/0/Config/DmiBIOSVersion" value="6 "/> <ExtraDataItem name="VBoxInternal/Devices/pcbios/0/Config/DmiSystemVendor" value="VMware"/> <ExtraDataItem name="VBoxInternal/Devices/pcbios/0/Config/DmiBIOSVendor" value="Phoenix Technologies LTD"/> <ExtraDataItem name="VBoxInternal/Devices/pcbios/0/Config/DmiSystemProduct" value="VMware Virtual Platform"/>
(That bits from http://ubuntuforums.org/showthread.php?t=1029144)
5) Next follow the guide here http://www.blindhog.net/how-to-get-root-access-on-call-manager-56-server/ to get root access. Make sure you use the CentOS Disk 1 rather than the Live Disk…….grrrrr
6) Edit the /usr/local/bin/base_scripts/hardware_check.sh script to look like this:
We essentially comment out the hardware check and validation
function check_deployment()
{
local tmp_deployment
initProductLibrary tmp_deployment="$deployment"
# Check the deployment
# isHardwareValidForDeployment $tmp_deployment
# rc=$?
# if [ $rc -ne 0 ]; then
# log info "$tmp_deployment deployment Not Supported"
# return 1
# fi
# Deployment is supported by this hardware
log info "$tmp_deployment deployment Is Supported"
return 0
}
7) Save it and reboot
The VM should come up and work !
Quickie: Setting Company Name for Mac OSX XCODE
Quick note to remember how to set company name in the OSX XCODE environment. Taken from http://macdevelopertips.com/xcode/change-company-name-in-xcode.html/trackback
1) Open Terminal
2) Run >>>> defaults write com.apple.Xcode PBXCustomTemplateMacroDefinitions '{ORGANIZATIONNAME="YourNameHere";}'
3) Done
Sun Virtual Box – Cloning machines
Posted by Kevster in VMware / Virtual Box / HyperV on 04/01/2010
I’m a big fan of Sun’s Virtual Box – its cross platform (I run it on Windows 7 X64,OS X and Ubuntu), FREE and works
Cloning machines is pretty the same as all OS’s, with one slight twist…..
1) Copy the VDI file you want to clone/backup.
2) This file won’t boot because it has the same UUID as the first file you copied, so need to use VBoxManage utility to give it a new random UUID.
3) Open command prompt, and change to your Vbox directory with VBoxMange.exe in it. Probably located at C:\Program Files\Sun\xVM VirtualBox\
4) Run this command in command prompt
VBoxManage internalcommands setvdiuuid “D:\My Virtual Machines\VDI\HardDiskName.vdi”
Obviously you would change the above path to point to your NEW VDI file that you created (not the original).