Jumbo Frames on VMware ESX

From the Service Console:

1. Change the MTU on the vSwitch "esxcfg-vswitch -m 9000 "
2. Do an "esxcfg-vswitch -l" and a "esxcfg-nics -l" to make sure the vSwitch and the physical NICs associated with it are now set to an MTU of 9000.
3. Create the port group and add it to the vSwitch "esxcfg-vswitch -a "
4. Create a VMkernel interface and associated port group "esxcfg-vmknic -a -i -n -m 9000 "
5. Test it "vmkping -s 9000"

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VMware machine on Linux over NTFS

When you get any VMware host software on Linux (Server or Workstation) running any guest on NTFS filesystem, you get ntfs-3g to 100% CPU usage on a regular basis.

This can be overiden by setting

• mainMem.useNamedFile=FALSE

in the .vmx definition file.

This gets 'mount.ntfs-3g' CPU usage back to manageable levels... 3~10%.

Pidgin home dir

What once was '%GAIMHOME%', while Yahoo did not do their thing, now on Pidgin is '%PURPLEHOME%'.

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Firefox 3 disable extentions compatibility checks

• Type about:config into Firefox's address bar and click the "I'll be careful, I promise!" button.
• Right-click anywhere. Choose New>Boolean. Make the name of your new config value 'extensions.checkCompatibility' and set it to 'false'.
• Make another new boolean pair called 'extensions.checkUpdateSecurity' and set the value to 'false'.
• Restart Firefox.

Multiline paste for Firefox 3

Type "about:config" in the location bar. In the "Filter" field type "singleline." You can set the value to 2 for editor.singleLine.pasteNewlines, which will allow pasting of multiple lines to input boxes.

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Windows XP Single to MultiProcessor patch

To switch to Multiprocessor support need to modify some system files.
There are three files involved in this in your \Windows\system32 directory:

• HAL.DLL
• ntoskrnl.exe
• ntkrnlpa.exe

The versions you need may be found in \Windows\ServicePackFiles\i386:

• halmacpi.dll
• ntkrnlmp.exe
• ntkrpamp.exe

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Adding missing GPG key for custom repositories

Option 1:

wget [URL].gpg -O- | sudo apt-key add -

Option 2

#!/bin/bash
gpg --keyserver subkeys.pgp.net --recv $1
gpg --export --armor $1 | sudo apt-key add -