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Mac Cisco VPN Client Error 51:

Joe — Thu, 05 May 2011 16:51:53 +0000

The Problem:

After installing Cisco’s Mac VPN Client and launching the application, you get the message:

Error 51: Unable to communicate with the VPN subsystem. Please make sure that you have at least one network interface that is currently active and has an IP address and start this application again.

The Solution:

If you just bought a new MacBook Pro (17-inch, Early 2011), MacBook Pro (15-inch, Early 2011), MacBook Pro (13-inch, Early 2011), or Mac Pro (Mid 2010), your system will – by default – load with Apple’s 64-bit kernel (Apple 1). This prevents you from launching certain 32-bit applications. In order to use your VPN, you will have to switch your boot kernel to 32-bit:

Switch to the 32-bit Kernel (Download Script)

1. Open Terminal (Applications/Utilities/Terminal)

2. Switch to the 32-bit kernel by typing the following command:

sudo systemsetup -setkernelbootarchitecture i386

3. Reboot your system and you will be using the 32-bit kernel, your VPN client will work now.

If you would like to take advantage of your 64-bit capabilities after switching to the 32-bit kernel, you will have to switch back to the 64-bit kernel:

Switch to the 64-bit Kernel (Download Script)

1. Open Terminal (Applications/Utilities/Terminal)

2. Switch to the 64-bit kernel by typing the following command:

sudo systemsetup -setkernelbootarchitecture x86_64

3. Reboot your system and you will be using the 64-bit kernel.

You can also select which boot kernel to use at start-up – much like an option boot.

Selecting Kernel on Boot

1. If your Mac is set to boot the 32-bit kernel by default (you have modified it per the instructions above), holding the “6″ and “4″ keys at start-up will boot the 64-bit kernel.

2. If your Mac is set to boot the 64-bit kernel by default (factory settings for the systems listed above), holding the “3″ and “2″ keys at start-up will boot the 32-bit kernel.

___

Mac OSX – 64-bit Kernel FAQ (Source 1)

Mac OSX – Booting the 32-bit or 64-bit Kernel (Source 2)

How to Whitelist Salesforce Email Notifications

Joe — Mon, 11 Apr 2011 16:48:00 +0000

I recently switched my SPAM filtering service to Panda’s Cloud Email Protection. All Salesforce notifications were being marked as SPAM even when the messages were added to the whitelist by my users.

To solve this, add Salesforce’s IP ranges to your whitelist.

They are:

202.129.242.64
202.129.242.65

and

204.14.232.64
204.14.232.65
204.14.232.66
204.14.232.67
204.14.232.68
204.14.232.69
204.14.232.70
204.14.232.71
204.14.232.72
204.14.232.73
204.14.232.74
204.14.232.75
204.14.232.76
204.14.232.77
204.14.232.78
204.14.232.79

and

204.14.234.64
204.14.234.65
204.14.234.66
204.14.234.67
204.14.234.68
204.14.234.69
204.14.234.70
204.14.234.71
204.14.234.72
204.14.234.73
204.14.234.74
204.14.234.75
204.14.234.76
204.14.234.77
204.14.234.78
204.14.234.79

MacBook Pro – No Sound and Red LED

Joe — Tue, 23 Mar 2010 16:35:54 +0000

The Problem:

MacBook Pro speakers are not functioning. Headphones work fine but, when they are unplugged, a red LED turns on inside the headphone port.

The Solution:

You are using a non-Apple headphone set that has (or had) a gold coating on the jack. The coating has rubbed off inside the port and clogged the mechanism that switches output between headphone and speakers.

Using the same headphone jack, repeatedly insert the headphone jack until the light turns off.