OS X (formerly Mac OS X) is the marketing name for Apple's computer OS. Note the proper pronunciation is "ohh ess ten" and not "oh ess ex".

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Official way to obtain an OS X ISO file

I'm trying to install OS X Mavericks in VirtualBox on Windows 8.1. I have VirtualBox installed and the VM set up, but I need an ISO file to install the operating system. I've searched around and ...
14
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3answers
32k views

How can I make the Cisco VPN Client work with Lion?

Worked in Snow Leopard and now gives error 51 and the sudo restart system command in Terminal i used to use doesn't work. Any idea?
13
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4answers
38k views

How to write on FAT32 and NTFS from Mountain Lion?

What is the best free software for OS X Mountain Lion for enabling write support for FAT32 and NTFS?
13
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2answers
4k views

What user behavior is necessary to make Filevault 2 maximally secure?

Situation: Filevault 2 passwords can be stolen Passware has released the Passware Kit Forensic 11.3 which is able to steal the FileVault 2 password from the RAM by performing a DMA Attack via the ...
13
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4answers
2k views

Choose a default app for opening files with no extension?

Is it possible to set a default application to open files with no extension? I'm not referring to files with hidden extensions, but those completely lacking an extension -- e.g. README, CHANGELOG, ...
10
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2answers
9k views

Permissions for new files in shared directory

We just got a new iMac are using the /Users/Shared directory to store media assets (pictures, audio, video) that we want accessible to all users on the machine. After copying over all the files ...
10
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3answers
1k views

How do I recover the administrator or root password on OS X?

I received a hand me down white MacBook with 10.4 on it and it automatically logs into a user account that isn't able to change much in the preference pane. How do I recover or change the ...
8
votes
6answers
12k views

The volume can't be ejected because it's currently in use

After working with an external USB backup disk I want to cleanly unmount the drive. When pressing the 'eject' button Finder warns me with the message: "The volume can't be ejected because it's ...
5
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2answers
3k views

In Mountain Lion how do I set, in one place, the PATH environment variable for all newly launched applications?

On Ask Different there are many questions regarding the PATH environment variable and how to set it for applications launched by a shell, by spotlight or via the finder (typical questions: How to set ...
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14answers
7k views

Lock Screen Command One-Liner

I'm trying to find out whether there is any kind of equivalent command line one-liner which replicates the exact identical functionality of the 'Lock Screen' menu option available via the Keychain app ...
17
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8answers
8k views

What's the best text editor for use with large files?

What are your recommendation for opening large text files on OS X? I found both BBEdit and Textmate to be struggling in this department.
14
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14answers
2k views

Editor or notes application with Markdown support?

Are there any editors or notes applications out there that support Markdown? I am often having to make notes or documents where markdown formatting would be ideal, and have gotten into the habit of ...
13
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5answers
18k views

How do I resolve duplicate “in the cloud” songs in iTunes 11?

When I installed iTunes 11, for some reason it re-downloaded all my purchased "in the cloud" songs even though they were already in my library. So now I have duplicate songs, one that matches the ...
5
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2answers
815 views

Listing all Openmeta Tags and associated Files

Some month ago I started using openmeta tags to manage my files. Is there a tool which shows all openmeta tags on my mac and the files tagged with these tags?
12
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5answers
13k views

Can I lower the minium display brightness? How?

When working late, I'd like to lower the screen brightness further than the OS X allows in using the brightness keys. While you can use ⌥+⇧+F1/F21 to change the brightness in smaller ...
11
votes
9answers
8k views

How can I stop OS X from automatically connecting to an NFS server on startup?

I upgraded to Lion today, but was having the same problem on Snow Leopard. When I start up my Mac and login, it automatically connects to an NFS server. I know this because I see the server in Finder ...
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4answers
12k views

How to switch language of OS X dictionary?

In Mountain Lion the OS X internal dictionary that you can fire up by right clicking a word, or by using the dashboard widget, seems to have gained at least one new language: German. Since German is ...
9
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5answers
6k views

AppleShowAllFiles does not show hidden files

I use OS X 10.8, I type the following defaults write com.apple.Finder AppleShowAllFiles YES killall Finder but still I cannot see any hidden files like .bash_history, .Trash, .cups, .gem etc. in ...
9
votes
3answers
7k views

How can I increase my font sizes without decreasing my resolution?

I have a 24" iMac at home which at the max resolution (1920 x 1200) is very comfortable for me to see my desktop and read text. Now at work I have a 27" iMac with a max resolution of 2560 x 1440 ...
9
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3answers
4k views

Move windows around a desktop — and to different desktops — using only the keyboard?

Here's what I'm trying to accomplish using only a keyboard: Move a window to different areas/corners of a desktop Move a window to different desktops Set/unset a window as shown/sticky on all ...
8
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4answers
2k views

OSX: Is there a built-in scheduler program?

I would like to schedule a task to execute with parameters at a specific time/date in the future. Does OS X include any such tool (even if it's command-line)? If not, are there any free or relatively ...
8
votes
3answers
3k views

Can Macs be put in hibernation voluntarily?

I know that when you put your Mac laptop to sleep and the battery dies, next time you plug it in it will wake up from the state it was prior to being put to sleep. There are also hacks to get this ...
7
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2answers
5k views

How to fix Disk Utility, About This Mac, and Finder that disagree on hard drive space usage?

Has anyone seen this issue and know how to fix it? Look at the free space reported by running "Get Info" on my hard drive (Macintosh HD) in the Finder, "About This Mac" from the Apple Menu, and Disk ...
7
votes
3answers
5k views

Is there a way to change font sizes system-wide while preserving UI resolution?

I have a 17" widescreen mac book pro (1920 x 1080) and find it hard to read the small fonts in the finder menu and in the Finder let hand panel even though my vision is good. Even the font's in most ...
4
votes
1answer
2k views

Is there a way to completely reset / regenerate Quick Look preferences (system-wide)?

Quick Look fails to work on many file types that actually have Quick Look plugins and I fear that some file clobbering has occurred during my last two OS upgrades. When Quick Look fails, the Quick ...
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votes
3answers
10k views

How can i reset my Terminal?

just some time ago i installed the OS X Server app on my mac and since this day it always appears server as the chosen directory in my terminal. But because i dont really like the Server application ...
18
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7answers
888 views

How to limit my Mac's exposure to malware?

With OS X malware increasingly in the news (see the Flashback Trojan issue), is there anything that I should do to increase the security of my Mac and reduce my exposure to malware? What I'm doing ...
17
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4answers
2k views

Concisely starting Mac OS apps from the command line

I do a fair amount of work in the command line, and I find myself defining a lot of aliases of the form: alias skim='/Applications/Skim.app/Contents/MacOS/Skim' Is there a way to add magic such ...
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5answers
823 views

What scenarios benefit from Mac OS X allowing apps to run when no document windows remain?

As a rule of thumb programs on Mac OS X stay running when you close all their document windows. This is the behavior I noticed in MacVim, VmWare Fusion, Chrome and host of other applications. I ...
11
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2answers
2k views

What happens at the user/OS level when an SSD finally wears out?

I have been reading up on SSD technology and don't know of any first hand reports on what happens when an SSD eventually fails due to over use. I am most interested in the SSD that apple includes as a ...
10
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1answer
5k views

Create a remote only user in OS X?

I'd like to create a user on OS X that has remote ssh login privileges where they can access a certain folder /path/to/the/goods/ and add/modify/delete files manually or via rsync while the rest of ...
10
votes
4answers
2k views

Updating modifier key mappings through defaults command tool

I am trying to automate the inital setup of my macbook, that includes installing software and changing OS X configuration to my needs. I have tried to update the modifier keys with defaults, the ...
8
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5answers
10k views

How to disable Apple Push Notification Service (apsd) on OS X 10.8?

I am using an iMac at work, and the IT security guys are raising issue with the Apple Push Notification Service (apsd) trying to bypass the proxy continually. I would like to know how I can disable ...
8
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4answers
3k views

Mac does not sleep automatically in Lion!

My Macbook Pro will not sleep even though it is set in System Preferences → Energy Saver. I do not have any sharing options enabled (System Preferences → Sharing). I do not have "Wake ...
7
votes
2answers
2k views

Daily clock drift of several minutes

In the recent weeks I've noticed each morning that my clock would be behind by 2-3 minutes. I've noticed that opening the 'Date & Time' dialog from System Preferences will trigger the clock to ...
7
votes
2answers
4k views

Why isn't the multisession login in Lion's VNC server working properly?

Has anyone been able to get the VNC server that came with Lion to work? Right now it seems to have problems with the new multisession remote login, causing problems for any VNC clients connecting to ...
6
votes
2answers
443 views

How to keep sound from muting while using dictation?

Whenever I try to use the dictation feature in OSX, it mutes my sound. I want to hear the audio I'm playing in iTunes or somewhere else while I have dictation enabled. How can I do that?
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votes
6answers
5k views

Switch internal monitor off by software (script/terminal/shortcut/…)

I’m using my MacBook Pro (OS X 10.6) standing in a shelf with an external screen on my desk so I don’t use and need the internal screen. But if the internal one is on it’s shown in spaces. It is ...
6
votes
4answers
21k views

How Should I Correct the Owners and Permissions in an OS X Lion User Folder?

My issue is that I've seriously busted all of the owners and permissions on my user folder and subfolders and it's causing lots of issues using lots of applications. The initial cause was that I had ...
6
votes
1answer
4k views

How can I manually change default applications in OS X?

I'm facing an issue with Transmission's "Set Default Application" button - it seems to do nothing. Magnet links still don't work, so this feature is broken for me. I have been able to use Magnet links ...
6
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2answers
2k views

Is there a way to limit the size of the Trash?

I just ran out of disk space and I have like 15GB in my trash. Is there a way to not keep items older than say 7 days or limit the size of the Trash? I need a way to automatically keep this managed. ...
6
votes
5answers
3k views

How to make terminals open side-by-side?

I use terminals a lot, and I frequently open and close them. The problem is that whenever I open a new terminal using ⌘+n it overlaps the current one, and I have to move it out of the way first. ...
6
votes
4answers
5k views

Can I schedule startup and shutdown with different settings for weekdays and weekends?

Everyday, I usually start my Mac Mini at 16:00 and shutdown it at 2:00 using the Energy Saver schedule settings. I would like to be able to set a different behavior on the Weekends starting Mac Mini ...
5
votes
4answers
504 views

Remount drive without physically disconnecting?

So I have unmounted a usb external hard drive but I went to re-mount it. Is there a command that I can use to remount the drive? Only way I know to re-mount a drive is to disconnect the usb cable ...
4
votes
2answers
3k views

Change the location of an icon in the menu bar?

Every time I start up Radium the menu bar icon for the application shows up in the same place: dead smack in the middle of all my other menu bar icons. Doesn't matter if it's the last menu bar ...
3
votes
4answers
7k views

Recovering data off of a dead hard drive

My hard drive died in my macbook and it no longer will start up. It will not mount in an external enclosure but disk utility is still reading that the hard drive is there, and I tried to repair disk ...
3
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4answers
1k views

Toggle “Use all F1, F2 as standard keys” via script

I toggle the "Use all F1, F2 as standard keys" setting very often and would like to automate it via a script (or a keyboard shortcut). Is it possible? I've tried to Google the right arguments for ...
3
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2answers
3k views

How to make iPhoto library back into bundle

I recently recovered from a disk failure and while most of my files are ok, I'm having trouble with my iPhoto library. While it appears that the data fro the iPhoto library is intact in the recovered ...
14
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1answer
17k views

How can I rename desktops in Mission Control?

The default new desktop space is named 'Desktop 1'. If you create a new one, it is named 'Desktop 2'. Is there a way to change those default names to something more meaningful? Additionally, it looks ...
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6answers
1k views

Download Manager for Mac OS X

What is a good Download Manager for Mac? Are there free ones available?