Similar to my article posted previously regarding the omission of SVN tools in OS X 10.8 Mountain Lion, it seems Apple have dropped the feature again on OS X 10.9 Mavericks. I’m beginning to think that the non-inclusion of the SVN tools is now the de facto standard, and will be missing on all future OS X versions.
Having recently upgraded to Mac OS X 10.8 – Mountain Lion, I was surprised to learn that SVN (Subversion) is not included in this release of the OS. This was a big pain point for me as I use Coda together with Versions for versioning and tracking revisions to my WordPress themes and websites.
The hosts file is a text file that maps hostnames to IP addresses. Upon typing a url address in the browser, the system first checks if there is a relevant entry in the hosts file and if exists gets the corresponding IP address. If no entries exists it resolves the IP via the active connection’s DNS servers.
The hosts file can be edited to block certain hostsnames, like ad-serving/malicious hosts, or used for web development purposes, i.e. to redirect domains to local addresses.
The Sudden Motion Sensor is designed to protect your Mac hard drive in the event of a computer being dropped or an unusually strong vibration. Essentially what it does is park the hard drive head when movement is detected, which prevents it from potentially scooting across the disk surface and scratching or otherwise damaging the drive or drive head.
Every physical interface of a computer has an associated MAC address which is a unique identifier. A MAC address is different from an IP address and is used for network access control and monitoring of network connectivity, such as applying MAC filtering on your Internet router to only allow specific machines to connect to the internet via your router. However, in order to do any of this you need to know the computers MAC address. This article explains how to find the MAC address of your MAC OS X machine.