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Mac OS X

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About the DNS cache OS X keeps a local cache of resolved DNS queries for a time defined by the DNS server. Sometimes it might be necessary to reset the cache immediately and re-query a DNS server. For example, you might need to do this if you are a network or server administrator and an entry on your DNS server has recently changed. If your Mac isn’t using the latest DNS entries from your server,…

I needed to make a bootable Mavericks install drive using a USB flash drive. I followed option 1 from the below site and it worked perfectly! http://www.macworld.com/article/2056561/how-to-make-a-bootable-mavericks-install-drive.html Copied here for future reference: Option 1: Use createinstallmedia Hidden inside the Mavericks installer is a Unix program calledcreateinstallmedia, provided by Apple for creating a bootable Mavericks installer. If you’re comfortable using Terminal, it’s a relatively simple tool to use. The program assumes your account has administrator privileges.…

This quick how-to will show you how to make a bootable USB stick from a downloaded ISO file using an Apple Mac OS X. Note: this procedure requires an .img file that you will be required to create from the .iso file you download. TIP: Drag and Drop a file from Finder to Terminal to ‘paste’ the full path without typing and risking type errors. Download the desired file Open the Terminal (in /Applications/Utilities/ or…

Here’s an excellent write-up for setting up SSH access using private keys to connect to other Linux/Unix servers without having to enter a password. http://smbjorklund.no/ssh-login-without-password-using-os-x Copied here for reference. Tired of typing passwords to SSH servers you often access? Well get used to it! Passwords provide a high level of security, but but it have a tendency be tedious, and also prevent you from running local scripts that automatic logon to your server to perform…

I’m known at my job and with friends of being a Mac fan, which is true. It wasn’t always like that however. I’ve spent the majority of my IT career behind a keyboard of a PC (well, and a Linux machine when I was a Redhat Server Administrator) 😉 Customers and friends often ask why I use a Mac, and I thought that this experience of a blogger who works for a site called Tuaw…