Nmap for Mac OS X Explores Networks, Scans Ports, and More
Mar 26, 2013 - 9 Comments
Nmap is a powerful command line network discovery utility that lets you review network inventory, host response and uptime, and perform security auditing through port scans, OS and firewall detection, and more. Though it’s free (and open source) and ships along with many versions of linux, it doesn’t come standard with Mac OS X installations, and thus must be installed separately. Nmap is generally fairly advanced, but it has plenty of useful applications even for those of us who are not network administrators and security professionals, and it can also be helpful for simple network setup tasks and troubleshooting.
By Paul Horowitz - Command Line, Mac OS, Tips & Tricks - 9 Comments
T-Mobile will begin to offer the iPhone on their USA network starting April 12. Unlike other US carriers, the 
As we all know, any time a photo is taken with the iPhone camera, a little shutter sound accompanies the snapping of the picture. That sound effect is all software, and so though you might expect there to be a simple settings change to toggle that sound effect off, well, you may be disappointed to learn there just isn’t such a setting. 
Using the automatic log out feature is a good way to bring an additional layer of security to a Mac. It works just as you’d expect; after a predetermined amount of time has passed without activity, the active user account logs itself out. This means all currently running apps close out as well as all documents which save in their current state through the Versions & Resume features. Then, in order to use the Mac again, someone will have to log back in with appropriate user and password credentials, thereby preventing unauthorized access. And of course because of the relatively new OS X Resume feature, once you do log in again all of your past apps and documents will launch again where you left off.
As you know, OS X plays a sound when a new Notification pops up in Notification Center. That default sound is called “Basso”, a low toned sound effect that is kind of like a short tap on a low note piano key. CultOfMac hilariously describes the sound as a “frog fart”, and if you aren’t a fan of that alert sound and you don’t want to mute the sound effects for Notifications 
It’s not unusual for peoples names to change, for someone to switch jobs or phone numbers, or even for a company to change their name or information. It’s frustrating to wander into the Contacts app on the iPhone to discover a ton of entries for a single person or entity to cover each of those changes, so when you find your Contacts getting overrun with duplicates or multiple entries for a single person, take the time to clean them up, merge the contacts, and eliminate the duplicates.
The Voice Memo app bundled with the iPhone allows you to use the device as a personal recorder, in much the same way people used to carry tape recorders to jot down thoughts, meeting notes, or just personal messages. 
Anytime you take a screen shot in Mac OS X or empty the trash you hear a little sound effect that accompanies the action. With a screenshot it sounds like a camera shutter clicking, and with the Trash it kind of sounds like a bunch of papers being crumpled and dumped out. 
Disabling the camera access in iOS prevents the Camera app icon from appearing on the home screen, it turns off the lock screen camera, and it also prevents all third party apps from using the camera at all, which as you may have guessed also disables FaceTime. No, you don’t have to physically remove the camera lens, this is all done by simple software settings.
