https://mostlycopyandpaste.com/articles/linux/Recent content in Linux on Mostly Copy & PasteHugoen-us© 2026 Kevin Duane. All rights reserved.Thu, 26 Feb 2026 10:00:00 -0800https://mostlycopyandpaste.com/articles/2026/02/the-complete-ssh-guide/Thu, 26 Feb 2026 10:00:00 -0800https://mostlycopyandpaste.com/articles/2026/02/the-complete-ssh-guide/Everything you need to know about SSH in 2026 — from Ed25519 keys and ProxyJump to connection multiplexing, rsync, tunneling, and security hardening.https://mostlycopyandpaste.com/articles/2010/09/ten-essential-linux-admin-tools-linux-magazine/Mon, 27 Sep 2010 10:00:00 -0800https://mostlycopyandpaste.com/articles/2010/09/ten-essential-linux-admin-tools-linux-magazine/System Administrators SAs need a set of tools with which to manage their often unmanageable systems and environments. These ten essential Linux&hellip;https://mostlycopyandpaste.com/articles/2009/03/linux-command-to-gathers-up-information-about-a-linux-system/Fri, 13 Mar 2009 10:00:00 -0800https://mostlycopyandpaste.com/articles/2009/03/linux-command-to-gathers-up-information-about-a-linux-system/If you are developing an application for Linux desktop and would like to automatically find out more information about system, use the following commands&hellip;https://mostlycopyandpaste.com/articles/2008/09/ssh-and-scp-howto-tips-tricks/Wed, 17 Sep 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/09/ssh-and-scp-howto-tips-tricks/A basic tutorial about the Linux commands ssh and scp. It features explanation about the syntax, the possibilities and the differences between the two. It&hellip;https://mostlycopyandpaste.com/articles/2008/09/shellsql-sql-for-shell-scripts/Tue, 16 Sep 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/09/shellsql-sql-for-shell-scripts/<p>| <a href="http://www.edlsystems.com/shellsql/">ShellSQL - SQL for shell scripts</a> | ShellSQL is a suite of programs designed to enable LINUX/UNIX shell scripts to connect to SQL engines and execute SQL queries and commands in a simple way enabling intergration with the rest of the script. For example, it can do things like..</p> <pre><code>#/bin/shHANDLE=`shpostgres dbname=mydb` shsql $HANDLE &quot;begin&quot; for ARG in $ do shsql $HANDLE &quot;insert into mytable fld1, fld2&quot; \ &quot;values nextvalmyseq, $ARG&quot; done shsql $HANDLE &quot;commit&quot; if [ $# -gt 0 ] then ROWS=`shsql $HANDLE &quot;select count from mytable&quot;` echo &quot;No of rows now in table is&quot; $ROWS fi shsqlend $HANDLE </code></pre> <p>For details on how it hangs together have a look at the <a href="http://www.edlsystems.com/shellsql/">overview</a>.</p>https://mostlycopyandpaste.com/articles/2008/08/all-about-linux-enabling-and-disabling-services-during-start-up-in-gnulinux/Tue, 19 Aug 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/08/all-about-linux-enabling-and-disabling-services-during-start-up-in-gnulinux/So how do you disable these services so that they are not started at boot time?&hellip;https://mostlycopyandpaste.com/articles/2008/07/the-mad-philosopher--ssh-keep-alive-tip/Tue, 22 Jul 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/07/the-mad-philosopher--ssh-keep-alive-tip/Whenever I login remotely to my machine in Canada, the ssh session dies after a while if I don&rsquo;t actively type something. This is not the server timing&hellip;https://mostlycopyandpaste.com/articles/2008/06/ubuntu-unleashed-the-top-security-tools-in-the-ubuntu-with-1-click-installation/Thu, 26 Jun 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/06/ubuntu-unleashed-the-top-security-tools-in-the-ubuntu-with-1-click-installation/Here is a collection of security tools that you should look through to add to your arsenal to help keep the peace on your pc/network or unleash war on&hellip;https://mostlycopyandpaste.com/articles/2008/04/how-to-change-the-timezone-in-linux-wikihow/Wed, 02 Apr 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/04/how-to-change-the-timezone-in-linux-wikihow/<p>| <a href="http://www.wikihow.com/Change-the-Timezone-in-Linux">How to Change the Timezone in Linux - wikiHow</a> | Most modern Linux distributions have user-friendly programs to set the timezone, often accesible through the program menus or right-clicking the clock in a desktop environment such as KDE or GNOME. Failing that it's possible to manually change the system timezone in Linux in a few short steps.</p> <p>| 1. Logged in as root, check which timezone your machine is currently using by executing <code>date</code>. You'll see something like Mon 17 Jan 2005 12:15:08 PM PST, PST in this case is the current timezone. | 2. Change to the directory /usr/share/zoneinfo here you will find a list of time zone regions. Choose the most appropriate region, if you live in Canada or the US this directory is the &quot;America&quot; directory. | 3. If you wish, backup the previous timezone configuration by copying it to a different location. Such as</p>https://mostlycopyandpaste.com/articles/2008/03/how-to-unzip-very-large-files/Tue, 18 Mar 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/03/how-to-unzip-very-large-files/Some windows programs use a compression for larger files that is not compatible with the linux unzip command. Resulting in the following error:&hellip;https://mostlycopyandpaste.com/articles/2008/01/op-insights-linux-hw-raid-howto/Thu, 03 Jan 2008 10:00:00 -0800https://mostlycopyandpaste.com/articles/2008/01/op-insights-linux-hw-raid-howto/There is great software RAID support in Linux these days. I still prefer having RAID done by some HW component that operates independently of the OS. This&hellip;https://mostlycopyandpaste.com/articles/2007/12/using-rsync-and-ssh/Sat, 01 Dec 2007 10:00:00 -0800https://mostlycopyandpaste.com/articles/2007/12/using-rsync-and-ssh/A classic guide to setting up automated rsync backups over SSH with key-based authentication, originally from Troy Johnson&rsquo;s tutorial.https://mostlycopyandpaste.com/articles/2007/09/superguide-the-open-source-challenge-how-to-replace-windows-completely-with-ubuntu-apc-magazine/Mon, 17 Sep 2007 10:00:00 -0800https://mostlycopyandpaste.com/articles/2007/09/superguide-the-open-source-challenge-how-to-replace-windows-completely-with-ubuntu-apc-magazine/But have I just been conditioned into using Windows because of past experience, or applications, or file formats, or the myriad other reasons that make&hellip;https://mostlycopyandpaste.com/articles/2007/08/learning-and-mastering-the-linux-vi-vim-editor/Wed, 29 Aug 2007 10:00:00 -0800https://mostlycopyandpaste.com/articles/2007/08/learning-and-mastering-the-linux-vi-vim-editor/The VI editor is a screen-based editor used by many Unix users. The VI editor has powerful features to aid programmers, but many beginning users avoid&hellip;https://mostlycopyandpaste.com/articles/2007/08/10-minutes-to-run-every-windows-app-on-your-ubuntu-desktop/Mon, 13 Aug 2007 10:00:00 -0800https://mostlycopyandpaste.com/articles/2007/08/10-minutes-to-run-every-windows-app-on-your-ubuntu-desktop/This simple guide will bring up the Windows start menu inside GNOME and allow you to run, use and install any Windows app (that can run in a VM) inside&hellip;https://mostlycopyandpaste.com/articles/2007/06/10-linux-shell-tricks-you-dont-already-know-really-we-swear/Sun, 17 Jun 2007 10:00:00 -0800https://mostlycopyandpaste.com/articles/2007/06/10-linux-shell-tricks-you-dont-already-know-really-we-swear/<p>| Here&rsquo;s a bunch of damn useful commands you haven&rsquo;t heard before. | 1. A Simple way to Send Output and Errors | 2. Parallelize Your Loops | 3. Catch Memory Leaks By Using Top via Cron | 4. Standard in directly from the command line | 5. Set a Random Initial Password, That Must be Changed | 6. Add Your Public Key to Remote Machines the Easy Way | 7. Extract an RPM without any additional software | 8. See How a File Has Changed from Factory Defaults | 9. Undo Your Network Screwups After You&rsquo;ve Lost the Connection | 10. Check a Port is Open</p>https://mostlycopyandpaste.com/articles/2007/04/linux-howto-netmasks-explained/Thu, 12 Apr 2007 10:00:00 -0800https://mostlycopyandpaste.com/articles/2007/04/linux-howto-netmasks-explained/Every machine needs an individual address. To keep things simple, we assign them in clumps; each network of machines generally gets a range of addresses.https://mostlycopyandpaste.com/articles/2007/01/howto-create-your-personal-all-in-one-usb-knoppix-510/Tue, 02 Jan 2007 10:00:00 -0800https://mostlycopyandpaste.com/articles/2007/01/howto-create-your-personal-all-in-one-usb-knoppix-510/You can take your desktop wherever you go, on USB stick, and newest working Debian 4.0 &lsquo;Etch&rsquo; to boot! The well-known flavor of Debian, engineered in&hellip;https://mostlycopyandpaste.com/articles/2006/08/ldap-authentication-in-linux/Fri, 25 Aug 2006 10:00:00 -0800https://mostlycopyandpaste.com/articles/2006/08/ldap-authentication-in-linux/This howto will show you howto store your users in LDAP and authenticate some of the services against it. I will not show howto install particular&hellip;https://mostlycopyandpaste.com/articles/2005/11/sysadmin-toolbox/Thu, 03 Nov 2005 10:00:00 -0800https://mostlycopyandpaste.com/articles/2005/11/sysadmin-toolbox/This is mainly for Linux folk but Mac Admins should be able to find equivalent tools.https://mostlycopyandpaste.com/articles/2005/07/mac-os-x-hidden-files/Fri, 22 Jul 2005 10:00:00 -0800https://mostlycopyandpaste.com/articles/2005/07/mac-os-x-hidden-files/<p>Articles &gt; Trash or Treasure&quot; href=&quot;http://maczealots.com/articles/hiddenfiles/&quot;&gt;MacZealots &gt; Articles &gt; Trash or Treasure</p> <p>The idea of a hidden file has changed since the days of the classic Mac OS, where a file's &quot;hidden&quot; attribute was set in the resource fork of the file, and wasn't immediately accessible to the user. In OS X (and UNIX in general), it's much easier. All you have to do is preface the name of a file with a period (&quot;.&quot;), and the file won't show up in the Finder, as well as Save/Open dialogs, etc. This can be a good way to hide a confidential file</p>