Short technical posts and notes by Rasmus Nord.https://posts.rasmus.co/https://posts.rasmus.co/2014/08/querying-a-specific-name-server-using-dig/https://posts.rasmus.co/2014/08/querying-a-specific-name-server-using-dig/A practical tip on how to avoid cached results when looking up DNS records.Wed, 20 Aug 2014 19:00:00 GMTDevelopment ToolsDNSdigwhoishttps://posts.rasmus.co/2014/02/adding-a-user-to-the-sudoers-list-in-ubuntu/https://posts.rasmus.co/2014/02/adding-a-user-to-the-sudoers-list-in-ubuntu/Stop using root for administrative tasks. Here is how to add a new user to the sudoers list in Ubuntu.Fri, 28 Feb 2014 22:00:00 GMTDevelopment ToolsLinuxUbuntucommand linehttps://posts.rasmus.co/2014/01/a-more-powerful-version-of-grep/https://posts.rasmus.co/2014/01/a-more-powerful-version-of-grep/The utility command grep has a more powerful brother that let us use POSIX Extended Regular Expressions.Fri, 31 Jan 2014 22:55:00 GMTDevelopment ToolsLinuxOS Xcommand linehttps://posts.rasmus.co/2013/12/display-disk-usage-with-the-du-command/https://posts.rasmus.co/2013/12/display-disk-usage-with-the-du-command/How to display the total of the current directory or a particular directory, as well as listing subtotals (subdirectories).Thu, 05 Dec 2013 23:15:00 GMTDevelopment ToolsLinuxOS Xcommand linehttps://posts.rasmus.co/2013/11/hide-the-desktop-icons-on-mac-os-x/https://posts.rasmus.co/2013/11/hide-the-desktop-icons-on-mac-os-x/A two step way using the defaults command to hide the icons from the desktop in Mac OS X.Wed, 27 Nov 2013 10:15:00 GMTSoftwareOS XFinderdefaultscommand linehttps://posts.rasmus.co/2013/09/the-plus-sign-feature-in-gmail-addresses/https://posts.rasmus.co/2013/09/the-plus-sign-feature-in-gmail-addresses/With a simple plus sign (+) and a tag, you can get a second address to your Gmail account.Mon, 30 Sep 2013 22:35:00 GMTInternetGmailGooglee-mailhttps://posts.rasmus.co/2013/09/how-to-open-the-ios-simulator-via-the-terminal/https://posts.rasmus.co/2013/09/how-to-open-the-ios-simulator-via-the-terminal/The simulator can be super useful, but equally super hard to find. Here is the path and how to open it.Sun, 29 Sep 2013 21:36:00 GMTiOS DevelopmentiOS SimulatoriOSOS Xhttps://posts.rasmus.co/2013/09/ssh-client-configuration/https://posts.rasmus.co/2013/09/ssh-client-configuration/If you just like me daily connect to multiple SSH servers, then I have a tip for you.Wed, 25 Sep 2013 19:40:00 GMTDevelopment ToolsSSHRSAserverhttps://posts.rasmus.co/2013/08/display-line-numbers-using-cat/https://posts.rasmus.co/2013/08/display-line-numbers-using-cat/A simple feature you one day may be glad you know.Tue, 27 Aug 2013 09:10:00 GMTDevelopment Toolscatcommand linehttps://posts.rasmus.co/2013/08/mongodb-shell-basics/https://posts.rasmus.co/2013/08/mongodb-shell-basics/A short introduction to the most basic things in the MongoDB shell.Mon, 26 Aug 2013 15:30:00 GMTDatabasesMongoDBhttps://posts.rasmus.co/2013/08/how-to-hide-the-nginx-version/https://posts.rasmus.co/2013/08/how-to-hide-the-nginx-version/Removing the version number from HTTP headers and error pages.Fri, 23 Aug 2013 06:38:00 GMTWeb Developmentnginxhttps://posts.rasmus.co/2013/08/make-apt-get-assume-yes/https://posts.rasmus.co/2013/08/make-apt-get-assume-yes/The way to avoid prompts when dealing with the APT package handling utility in Ubuntu Server.Thu, 22 Aug 2013 04:15:00 GMTDevelopment ToolsUbuntuapthttps://posts.rasmus.co/2013/08/finding-the-latest-version-of-an-npm-package/https://posts.rasmus.co/2013/08/finding-the-latest-version-of-an-npm-package/Using the view registry info command to show the latest version available of a package in the node package manager.Wed, 21 Aug 2013 06:10:00 GMTApplication Developmentnode.jsnpmcommand linehttps://posts.rasmus.co/2013/08/shorten-your-google-plus-url/https://posts.rasmus.co/2013/08/shorten-your-google-plus-url/If you don't happen to be a very important person, then you like many of us probably still have an ugly URL for your profile. Let's change that.Tue, 20 Aug 2013 00:45:00 GMTWeb DevelopmentnginxGoogle Plushttps://posts.rasmus.co/2013/08/create-and-extract-tar-archives-compressed-with-gzip/https://posts.rasmus.co/2013/08/create-and-extract-tar-archives-compressed-with-gzip/For some reason I always find it hard to remember how to create and extract gzipped TAR archives, but here is how to do it.Mon, 19 Aug 2013 10:55:00 GMTDevelopment Toolstargzipcommand line