22 If you want to change the default mail client on your Mac then you can use a quick Python script to quickly change the default mail app. Copy/paste the following command into Terminal. Below I am setting Outlook to be the default mail client, but you can replace com.microsoft.Outlook with whatever application bundle identifier you use. […]
Read more →To view the list of nameservers your mac is using, simply open Terminal and paste the following: Alternatively, you can copy the DNS servers to clipboard directly from the command line (using pbcopy):
Read more →I am not going to tell you why you would need to flush your DNS cache (you will know if you need to). So, to flush DNS on a mac simply fire up Terminal and run the following sudo command:
Read more →I recently managed to explode my wordpress site (whilst trying to upgrade PHP). Anyway, luckily I had created an AMI a month ago – but I had written a few articles since then and so wanted to avoid rewriting them. So below is a method to create a backup of your wordpress mysql database to […]
Read more →If the fingerprint of your remote host changes you will see the following error message appear: There are many ways to fix this. The easiest of which is simply to delete your “known_hosts” file. This will mean you just need to accept new finger prints on all your SSH hosts. Yes, this is very lazy…
Read more →For those who like to maximise or minimise their windows on a Mac, you will likely be frustrated by the default behaviour of your Macbook (in that it doesn’t restore/focus minimised or maximised screens). Below are a few steps to make your mac screen restores behave like Microsoft Windows: Install Homebrew (if you dont have): […]
Read more →If you’re like me, little things bother you. When I turn on my bluetooth headset and it connects to my Macbook when its closed/sleeping, I get very frustrated. So I wrote a simple script to fix this behaviour. After running the script below, when you close the lid on your Macbook it will automatically turn […]
Read more →If you want to quickly test a URL for changes, then the linux Watch command couple with Curl is a really simple way to hit a URL every n seconds (I use this for blue/green deployment testing to make sure there is no downtime when cutting over):
Read more →If you are testing how your autoscaling policies respond to CPU load then a really simple way to test this is using the “stress” command. Note: this is a very crude mechanism to test and wherever possible you should try and generate synthetic application load.
Read more →Previously Macs would allow you to install software from anywhere. Now you will see the error message “NMAPxx.mpkg cannot be opened because its from an unidentified developer“. If you want to fix this and enable apps to be install from anywhere, you will need to run the following command line: Once you have run the […]
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