HCS Blog

How to randomize MAC Address in OS X
openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//' | xargs sudo ifconfig en0 ether

Set Mac Address to Arbirtrary Address in OS X
sudo ifconfig en0 ether aa:bb:cc:dd:ee:ff

In a recent security update (December 14, 2015), Apple implemented a security measure that disallows the ability to remotely click Keychain Access windows (synthetic clicks).  For instance, if you are remotely assisting a customer with retrieving a password, upon opening a Keychain Access entry, you wil not be able to click Allow or Always Allow in order to reveal a resource password.  The user will have to click locally.  This can also be especially troublesome if working remotely on a headless server as there may be no local user to assist.

Yes there is.  On the bottom of your iPad keyboard, there is an icon for a keyboard with a down arrow on the icon. Hold the keyboard button down and a toggle to merge or merge and dock the keyboard will appear. While holding your finger on the ipad screen, slide your finger to the merge and dock toggle to put your keyboard back on the dock and merged back to one keyboard.

Before upgrading, backup UTS database. To do this, Log into Server Administration. Then Go to Datastore > Backups and click “Backup now”. Go to /Applications/Extensis/Universal Type Server/data/backups. Copy or move the latest backup to a safe place.

You will need to Uninstall UTS 4 before installing UTS 5.
1. Go to /Applications/Extensis/Universal Type Server/applications
2. Double-click to launch Universal Type Server Uninstaller.pkg and go through the wizard to uninstall UTS.
3. in the Applications Folder, move the the Extensis folder to the trash.
4. Go to /Library/ remove the Extensis folder.
5. Go to /Library/Preferences/ remove anything that starts with com.extensis.

I’m not a fan of the new Disk Utility in El Capitan.  I had a drive with 3 partitions and I needed to make it a single partition drive. Disk Utility would not allow me to delete one of the partitions no matter what I tried.

So I used the following Terminal command:



diskutil partitionDisk /dev/disk2 GPT JHFS+ New 0b

To break it down:

1.  diskutil - is a command line tool used for formatting disks.

2.  patitionDisk -  is an option that can be used in diskutil.

3.  /dev/disk2 -  is the location of the disk that you want to format.  You can use the diskutil “list” option  to find this information.

4.  GPT -  is the GUID Partition Table.

5.  JHFS+ - is the default filesystem type that OS X uses.

6.  New - This is the name of the partition.  You can name it whatever you like.

7.  0b - This tells the command to use all available free disk space.