Very useful Macbook tips for a new user.

How to use home and end keysHow to take screenshotsGet information about installed appsMore keyboard key shortcuts How to use home and end keys To right-click on something, hold the control key and then click an item to get a right-click context menu. This is how you can customize Firefox…

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How to set a MAC address on a Cisco 3700 router.

This command in interface configuration mode will change the MAC address for a specific interface on the router. R1(config-if)#mac-address DE.AD.BER1(config-if)#mac-address DE.AD.BE And this is what I get when I use the show run command and view the properties of the interface. interface FastEthernet0/0 mac-address 00de.00ad.00be ip address 192.168.0.1 255.255.255.0 ip…

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Change your MAC address on Linux with the command line.

To change your MAC address in Linux, you just need to issue these few commands, and then re-run dhcp or reconfigure the interface. This works for both wired and wireless cards. Bring down the interface. jason@eyjafjallajkull:~$ sudo ifconfig eth0 down [sudo] password for jason:jason@eyjafjallajkull:~$ sudo ifconfig eth0 down [sudo] password…

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List all of your IP addresses using the ip command.

The ip command will list all of your ip addresses when combined with the grep command to look for all inet words. This is a very useful one-liner. ubuntu ~/Documents $ ip a | grep "inet " inet 127.0.0.1/8 scope host lo inet 172.31.20.16/20 brd 172.31.31.255 scope global eth0 inet…

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What the insides of the new 5K iMac look like.

The new 5K iMac looks very simplistic when you take the screen out. There is one hard disk drive and one cooling fan that takes hot air away from the CPU. The main selling point of the new iMac is the 5K screen, not the Darwin UNIX based OSX operating…

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Useful Macintosh OSX terminal commands to get information about your iMac.

The mount command shows information about your mounted partitions on your machine. iMac305:~ admin$ mount /dev/disk0s2 on / (hfs, local, journaled) devfs on /dev (devfs, local, nobrowse) map -hosts on /net (autofs, nosuid, automounted, nobrowse) map auto_home on /home (autofs, automounted, nobrowse) map -fstab on /Network/Servers (autofs, automounted, nobrowse) /dev/disk0s3…

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Some more useful UNIX commands available for the Mac.

There are a few very useful UNIX commands available on the Apple Macintosh. Mountain Lion is what I am using in Virtualbox and I am having a look at some very useful shell commands and tips. The iostat command. This shows statistics of disk Input/Output. Homers-iMac:Documents homer$ iostat disk0 disk1…

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