Linux Directory Structure (File System Structure) Explained with Examples. By Ramesh Natarajan on September 8, 2010 Have you wondered why certain programs are located under /bin, or /sbin, or /usr/bin, or /usr/sbin? For example, less command is located under /usr/bin directory. Why not /bin, or /sbin, or /usr/sbin? What is the different between all these directories? In this article, let us review the Linux filesystem structures and understand the meaning of individual high-level directories. 1. / – Root Every single file and directory starts from the root directory.Only root user has write privilege under this directory.Please note that /root is root user’s home directory, which is not same as /. 2.
Contains binary executables.Common linux commands you need to use in single-user modes are located under this directory.Commands used by all the users of the system are located here.For example: ps, ls, ping, grep, cp. 3. 4. 5. Contains device files.These include terminal devices, usb, or any device attached to the system.For example: /dev/tty1, /dev/usbmon0 6. 7. 8. 9. Medibuntu. Ubuntu. All commands sorted by votes. Blog Archive » 7 Cool Things to Do With Linux. So you’ve taken the plunge and installed Linux.
You’ve followed all the HOWTOs all over the net. You’ve got your wireless card working flawlessly. You’ve got your video card working (and you’ve begun to loathe that spinning cube). You’ve installed all the “restricted” software like Adobe Flash, Sun Java and Google Earth. Use Your computer as a Home Theater PC. Hardening the Linux desktop. Introduction Malicious attacks against computers are on the rise. Although fewer viruses have been written to attack GNU/Linux systems than Windows systems, GNU/Linux viruses do exist. Furthermore, the amount of other types of malware that can infect a computer running Linux — as well as the sheer number of attacks — are growing. Recently Wirenet.1 attacked computers running Linux and Mac OS X.
The malware stole passwords and other information stored in the computer's Internet browser, email client, and instant messaging tool. Platform-independent environments such as OpenOffice.org, Perl, and Mozilla Firefox are not exempt. Some malware packages are written specifically for GNU/Linux. Comments Back to top. Labs. Netfilter/iptables project homepage - The netfilter.org project.
OMG! Ubuntu! Ubuntu homepage. Community. Ubuntu Team Wiki. UncomplicatedFirewall. Introduction The Linux kernel in Ubuntu provides a packet filtering system called netfilter, and the traditional interface for manipulating netfilter are the iptables suite of commands. iptables provide a complete firewall solution that is both highly configurable and highly flexible.
Becoming proficient in iptables takes time, and getting started with netfilter firewalling using only iptables can be a daunting task. As a result, many frontends for iptables have been created over the years, each trying to achieve a different result and targeting a different audience. UFW in Ubuntu Ubuntu 8.04 LTS introduced ufw, and it is available by default in all Ubuntu installations after 8.04 LTS. Available Versions in supported versions of Ubuntu Ubuntu 10.04 LTS: 0.30pre1-0ubuntu2 Ubuntu 12.04 LTS: 0.31.1-1 Ubuntu 12.10: 0.33-0ubuntu2.1 Ubuntu 13.04: 0.33-0ubuntu3 Ubuntu 13.10: 0.33-0ubuntu4 Features ufw has the following features: IPv6 enabled by default Basic Usage Getting started with ufw is easy.