Setting up LVM: http://www.debian-administration.org/articles/410
Setting up RAID: https://raid.wiki.kernel.org/index.php/RAID_setup
Growing a RAID volume: https://raid.wiki.kernel.org/index.php/Growing
Checking and repairing bad blocks: http://smartmontools.sourceforge.net/badblockhowto.html
Some usefull articles about booting a PowerPC Mac with
Yaboot. Booting OSX, Linux or FreeBSD in single or dualboot configurations.
This article by KO6TH was a great inspiration for me to build my own homebrew sat rotor controller.
Een 70cm ATV ontvanger is makkelijk zelf te bouwen: http://www.pa1pas.nl/atv/zelfbouw-70cm-atv-ontvanger/ (zie ook bijlage)
Een goedkope zelfbouw ATV zender is hier te koop: http://www.minikits.com.au/electronic-kits/amateur-television/70cm-AM-Video-TX
- A good radial system for a ground mounted HF vertical needs about 120 buried wires of 1/4 wave length
- An elavated HF vertical about 1/10 to 1/16 wave lengh above ground will perform equally well
SELECT * FROM table WHERE tablefield IN ( SELECT tablefield FROM table GROUP BY tablefield HAVING (COUNT(tablefield ) > 1) )
To digitally sign your VB macros you can of course use a self signed certificate, but that will not allow other users to use your macros unless they install your certificate as a trusted root certificate.
Certum.eu offers open source code signing certificates for free. Just apply here https://sklep.unizeto.pl/ankieta/form.php and make sure you use ‘Open Source Devloper’ as the company name.
To prevent your signature to become invalid after the Code Signing Certificate has expired (requiring you to re-sign the VB macro) you might want to include a timestamp in the signature. To do so, import the following Registry Key to enable automatic timestamping every time you save the Macro.
Key Name: HKEY_CURRENT_USER\Software\Microsoft\VBA\Security Class Name: <NO CLASS> Last Write Time: 5-11-2012 - 12:00 Value 0 Name: TimeStampURL Type: REG_SZ Data: http://time.certum.pl
Value 1 Name: TimeStampRetryCount Type: REG_DWORD Data: 0x5
Value 2 Name: TimeStampRetryDelay Type: REG_DWORD Data: 0xa
Simple, most of the hard work has already been taken care of, all you need to do is call this code when you need to:
Function GetGuid() Set TypeLib = CreateObject("Scriptlet.TypeLib") GetGuid = Left(CStr(TypeLib.Guid), 38) Set TypeLib = Nothing End Function dim SomeValue : SomeValue = GetGuid()
The above code will create a GUID object, shorten it to 38 chars and then give you the result! All you have to do is save it in the database.
While some databases allow you to create these values automatically, this simple function provides a way for those that do not (such as simple xml).