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Sleepimage – the Mac OS X sleepimage file explained. If you’ve used a tool like DaisyDisk to analyze your Mac’s disk space usage, you may have come across a file named ‘sleepimage’ that is rather large.

sleepimage – the Mac OS X sleepimage file explained

What is sleepimage in Mac OS X? The ‘sleepimage’ file is just what it sounds like, it’s what your Mac had in it’s memory when the machine went to sleep, creating an image of your Mac’s previous memory state. When your Mac wakes from sleep, the content of sleepimage is read again and placed back into active memory, and your Mac is returned to the state that it was in prior to sleeping. Think of it like a swapfile of sorts, but for sleep and wake functionality only. Why is sleepimage taking up so much space? The sleepimage file is generally the exact same size as the amount of physical RAM your Mac has. Ls -lh /private/var/vm/sleepimage You will then see data like: -rw------T 1 root wheel 4.0G Oct 7 15:46 /private/var/vm/sleepimage And the number between ‘wheel’ and the date is the sleepimage file size, in this case it is 4 GB. Make an Alias in Mac OS X Terminal, Using Bash Shell. Removing .DS_Store files on Macintosh OS X? To view/add comments, you must enable JavaScript in your browser.

Issue Many users have experienced and been puzzled by the .DS_Store files, which exist on Macintosh OS X machines and some web servers. This TechNote will explain an issue related to .DS_Store files and discuss ways to remove these files. Note: Issues dicussed here are in relation to third-party software and Macromedia does not provide support for third-party software.

Reason The .DS_Store files are created by the Macintosh OS X Finder. When a new directory is accessed using the OS X Finder, a .DS_Store file will be created in that directory. Users should be concerned about .DS_Store files being uploaded to the web servers. Solution. Mou - The missing Markdown editor for web developers, on Mac OS X. NewbieGuide – kismacng. NOTE: If a previous installation of KisMAC has been used, please make sure to delete the following files if they exist: ~/Library/Preferences?

NewbieGuide – kismacng

/de.binaervarianz.kismac.plist (where '~' is your home folder) ~/Library/Preferences? /com.kismac-ng.kismac.plist (where '~' is your home folder) ~/Library/Preferences? /org.kismac-ng.kismac.plist (where '~' is your home folder) Before you start using KisMAC, it is imperative that you familiarize yourself with the FAQ. KisMAC is NOT to be used to illegally connect to any Wi-Fi network, encrypted or otherwise.

How to use KisMAC ¶ Read the FAQ again (or for the first time). How Do You Get Further Help? Please make an effort to find the answer for yourself before asking other members for help. What Hardware Should You Buy? KisMAC - Welcome. KisMAC. KisMAC will scan for networks passively on supported cards - including Apple's AirPort, and AirPort Extreme, and many third-party cards, and actively on any card supported by Mac OS X itself.

KisMAC

Cracking of WEP and WPA keys, both by brute force, and exploiting flaws such as weak scheduling and badly generated keys is supported when a card capable of monitor mode is used, and packet reinjection can be done with a supported card (Prism2 and some Ralink cards). GPS mapping can be performed when an NMEA compatible GPS receiver is attached.[3] Data can also be saved in pcap format and loaded into programs such as Wireshark. KisMAC Features[edit] Reveals hidden / cloaked / closed SSIDsShows logged in clients (with MAC Addresses, IP addresses and signal strengths)Mapping and GPS supportCan draw area maps of network coveragePCAP import and exportSupport for 802.11b/gDifferent attacks against encrypted networksDeauthentication attacksAppleScript-ableKismet drone support (capture from a Kismet drone)

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How do I change my MAC address? Although physical MAC (Media Access Control) addresses are permanent by design, several mechanisms allow modification, or "spoofing", of the MAC address that is reported by the operating system.

How do I change my MAC address?

This can be useful for privacy reasons, for instance when connecting to a Wi-Fi hotspot, or to ensure interoperability. Some internet service providers bind their service to a specific MAC address; if the user then changes their network card or intends to install a router, the service won't work anymore. Changing the MAC address of the new interface will solve the problem. Similarly, some software licenses are bound to a specific MAC address. Changing the MAC address in this way is not permanent: after a reboot, it will revert to the MAC address physically stored in the card. TotalFinder brings tabs to your native Finder and more! Set the primary display on a dual-screen Mac setup. If you are running a dual-display setup, you can easily adjust the primary display monitor in Mac OS X.

Set the primary display on a dual-screen Mac setup

When would you want to do this? For example, if you have a MacBook Pro 13″ hooked up to a larger external display, and you want the external display with it’s higher resolution to become the primary display, and your MacBook Pro with it’s smaller resolution to become the secondary display. This is just a matter of settings adjustments and it only takes a minute to configure, though it’s not particularly obvious at first glance. Let’s walk through how to set the primary screens: You will obviously need an external display to use this feature. This screenshot demonstrates the white bar actively being dragged from the built-in screen on the left to an external connected display on the right, notice the red border that indicates the secondary screen (right side) will become the new primary display.

How to spoof your MAC address in Mac OS X. A MAC address is a unique identifier assigned to your network card, and some networks implement MAC address filtering as a method of security.

How to spoof your MAC address in Mac OS X

Spoofing a MAC address can be desired for multiple reasons, and it is very easy to spoof your MAC address in Mac OS X 10.4, 10.5, 10.6, 10.7, OS X 10.8, and OS X 10.9. For the purpose of this article, we are going to assume you want to spoof your Mac’s wireless MAC address, meaning your wi-fi card. Without further ado, here’s a three step process on how to do just that…

Mac OS X hidden features and nice tips & tricks - Apple - Stack Exchange.