February 23, 2019

Tips Section Index

Linux Process Management: Using lsof to List Open Files

When you're tracking down wayward processes and figuring out what they're doing, lsof is an indispensible command for finding all open files, and the processes that opened them. Juliet Kemp gives us some good tips on using this simple but excellent command.

Viewing and Changing Ext2/3 File Attributes With chattr and lsattr

The chattr (change attributes) command allows you to view and change the attributes of the ext2 and ext3 filesystems, such as setting the immutable bit, synchronous writes, and append-only. Juliet Kemp shows us how.

Getting Rid of Nasty Flash Cookies on Linux

Flash cookies are the secret nasties of using the Flash player on any platform, and most computer users don't even know they exist. Like HTTP cookies, it is rather naive to assume that they are always used for our benefit. In this two-part series, Carla Schroder shows the Adobe way and then the Linux way of managing Flash cookies.

Linux Command-Line-Fu

Command-Line-Fu is a new, bash.org-style site for collecting command-line tips and tricks. Juliet Kemp gives us a quick tour of this endlessly-useful new site.

Remote Graphical Desktop With GDM and KDM

Linux is cram-full of all kinds of remote administration utilities, and even the oldtimers such as gdm and kdm are still good and useful. Juliet Kemp shows us how to use kdm and gmd to enable remote graphical desktops on KDE and Gnome.

More Fun With SSH Shortcuts

OpenSSH has a number of great shortcuts for managing multiple passwords and encryption keys. Juliet Kemp shows us how.

The Fast Way to Read Compressed Files on Linux

Linux has a multitude of handy specialized commands and fast ways to do things. Juliet Kemp shows us how to read compressed files without unpacking them first.

Making KDE's Konqueror Obey You

KDE's Konqueror file manager and Web browser is a powerhouse loaded with useful features. However, sometimes it takes a bit of digging to unearth treasures and to figure out how to make it do what you want. Carla Schroder offers up tips on creating view profiles that stick, and how to open it exactly to the profile that you want.

Ways to 'kill' With Linux

The kill command has many useful options, and is your ticket to get out of trouble without rebooting. Juliet Kemp shows some useful ways to use 'kill' to get a handle on runaway processes.

Securely Wiping Disks With DBAN

Juliet Kemp introduces DBAN (Darik's Boot And Nuke), a self-contained boot disk (floppy, CD, USB) that securely wipes hard disks. It is operating system independent and meets a number of government security standards; read on to learn more.

Don't Get Fried on Cheap Power Supplies

It doesn't pay to pinch pennies on computer power supplies, because inferior power supplies cause slowdowns, lockups, crashes and worse. Here are some tips for how to pick quality power supplies.

Magic Tricks To Get Out of Trouble With the Sysreq Key

The sysrq key sits quietly at the top of your keyboard, usually sharing space with PrntScrn. sysrq is a direct hotline to the kernel and gets you out of trouble when your system is getting tangled up in itself; Juliet Kemp shows how.

cURL, the Swiss Army Knife of Download Utilities

cURL is just what the guru ordered when you want an all-purpose downloader that supports practically every file-transfer protocol there is, and it's invaluable for getting behind pretty but uninformative GUIs when you need to see what's really going on. This tip shows you three useful ways to use it, and how to find out more.

Conquering Character Encoding Chaos With GNU Recode

In the beginning was ASCII. Computers only spoke ASCII, and life was simple and good. Except for all the peoples of the world who did not use the English alphabet. Along came Unicode and life became even better, though somewhat more complicated. Carla Schroder introduces us to GNU Recode and convmv, two great little utilities for converting character sets.

OpenSSH Speed Tips and Tricks

OpenSSH is still the primo tool for fast, secure remote administration. Carla Schroder shares some tips to make it even faster and more convenient: fast safe key transfers and management, and accessing remote filesystems in a fast, convenient way.

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