I have been running a VPN server on my Mac for a while now, per Donald Burr’s most awesome instructions here. One day while out and about I tried to use my VPN from my Mac and iOS devices only to discover that while I could connect and get an IP address internal to my network, I could not get outside to the Internet. I described the problem to Donald and he sent me the following instructions to restart IP forwarding on the VPN server. This fixed my problem in a snap, hope it helps you too.
Try running the following commands in terminal on the VPN server. You’ll have to do this when you’re next at home obviously. Note: replace “INTERFACE” with “en0” if your machine is hardwired (ethernet) or “en1” if it’s on wifi.
sudo sysctl -w net.inet.ip.fw.enable=1
sudo sysctl -w net.inet.ip.forwarding=1
sudo natd -interface INTERFACE
sudo ipfw add divert natd ip from any to any via INTERFACE
If you’ve installed a VPN server on your Mac using Donald Burr’s most awesome instructions but for some reason want to uninstall the server, here’s an uninstall script along with text-based instructions from Donald:
Download the script here:
Find the place where you downloaded the script (probably in your Downloads folder), keep a finder window open and off to the side. Open a Terminal window, and type:
chmod [space] +x [space]
DO NOT press return yet. In the Finder window, drag the script into the Terminal window, it should insert its path in the command line you are currently typing. Then press return.
Finally type this:
Again DO NOT press return, but drag+drop the script from Finder into the terminal, then press return. The script should run now. When it’s finished reboot your machine.
The Problem to be Solved
Apple’s Contacts application can easily create address labels, but it’s harder to create a bunch of labels of the SAME address for return address labels. Basically we’re going to replicate your home address card as many times as you have on one sheet of labels, and then print them all on one sheet.
If we only have one card with our address, it looks like this when we try to print our labels:
Select Your Contact Card
We’re going to replicate our home address card 19 times. First select the card.
Now You have Two Identical Cards
Repeat Until You Have 20 Identical Cards
Print All 20 on One Sheet
Style = Mailing Labels
Page is set to the exact label type you bought (most show the Avery Standard equivalent)
Note home many labels on on one page – in the example Avery 5161 has 20 labels
Take it Up a Notch And Add a Graphic
Plain text not fancy enough for you? Let’s add some flair!
- Click on Label
- Click on Set next to Image
Select a Tasteful Graphic
Now Your Labels Have Flair!
I highly recommend that you print a test page and hold it up to a light with the labels behind it to ensure your printer is going to align everything perfectly.
Final Step – Don't Forget to Delete the 19 Duplicate Cards!
In Episode 412 of the NosillaCast on 31 March 2013, Bart walked us through how to set up signed and encrypted email on Mail.app on the Mac, and also on iOS. Below are three Clarify Tutorials designed to give you the step by step instructions. Bart and I worked on this together, and we decided breaking this up into three separated tutorials made sense.
First we’ll teach you first how to obtain a certificate and generate a private key and then send signed and encrypted email from Mail.app:
How to Set Up Encrypted and Signed Email in Apple Mail
You can stop there, but if you want to use a second Mac to send email or use a different email client, or even iOS, you’ll need to know how to export your certificate:
How to Export Your Certificate and Private Key
Finally if you want to read encrypted email, and sign your emails, you’ll need the last tutorial. Unfortunately, iOS isn’t at all easy to maintain for actually sending emails encrypted, but you’ll still be able to send them:
How to Read Encrypted and Send Signed Emails on iOS