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Reduce PDF file size

A handful of quartz filters for saving PDFs.   As an example, using a 73 MB PDF from a 55 page Powerpoint presentation, the compressed files have the following sizes : + 75 dpi low quality : 2.7 MB + 75 dpi average quality : 3.2 MB + 150 dpi low quality : 4.2 MB […]

How to Create an Archived iTunes Backup

Regularly creating iCloud or iTunes backups should be routine for every iOS user, but if you want to upgrade to a beta version of iOS or if you think you might want to downgrade shortly after installing a new iOS update, you’ll want to make sure create an archived iTunes backup beforehand. An archived iTunes […]

Deploy Self-signed RootCA to client computers

2 computers required : ServerMac ClientMac   On ServerMac : Create a Certificate Authority and Export the Root Certificate (If you already have a self-signed RootCA that you want to deploy, then you can skip this part) Open Keychain Access. Select the System keychain. From the Keychain Access menu, navigate to Certificate Assistant and select […]

Creating PAYLOAD-FREE Package

Here’s how we make a “true” payload-free package (that does not leave a receipt): pkgbuild –nopayload –scripts /path/to/scripts_dir –identifier org.example.payloadfree –version 1.0 MyGreatPayloadFree.pkg But payload-free packages built this way have a “feature” that can sometimes prove problematic. Flat packages built with pkgbuild using the –nopayload option do not leave receipts in the pkgutil database. This […]

Decoding the Caching server

1. Server and clients – Behind Same Public IP (same or different subnet)     First, the server registers with Apple, it provides it Public IP and the Private IP.  Apple notes both the information. Second, When the client requests Apple for  any download, since Apple knows that there is a caching server associated with […]

External accounts behaviour

Here’s the configuration : A Mac with 2 partitions – “Sierra 1” and “Sierra 2”. We try to demo Manual enrolment on Partition 1 and Automated enrolment on Partition 2. So, there is a “User 01” mobile account on Partition 2. Now, when I boot the Mac into Partition 1, I get this pop-up window […]

Convert .app to .pkg (Packaging)

1. Productbuild + ARD demo suggestion: create a distribution package of a small app (man productbuild) distribute the package to each attendee’s Mac using ARD see: man productbuild Example: productbuild –component /Applications/Firefox.app/ /Applications/ ~/Desktop/Firefox.pkg 2. pkgbuild Example : sudo pkgbuild –install-location /Applications –component /path/to/app/for/MyGreatApp.app ./path/to/save/package/packagename.pkg   Example for Firefox : sudo pkgbuild –install-location /Applications –component […]

Boot Into Target Disk Mode With Firmware Password Enabled

If your Mac has a firmware password and you want to boot into Target Disk Mode you can’t just hold down “T” while the computer boots.  It won’t prompt for a password or anything.  To get around this I’ve been booting into systems, removing the firmware password, then booting into target disk mode.  Well there […]

Does OS X Server have a print server?

Q : Does the latest version of OS X Server have print server capabilities? If I have three printers that are AirPrint compatible and would like to check whether there’s a way to pre-install drivers on a configuration file for a user to plug in to his or her Mac and all the printers be configured […]