10 wget commands to download - Command Line Downloader | LINUX INTERNETWORKS. Wget is a command line utility tool to download files from your network. It supports http, https, and ftp protocols. If you are accessing remote machine and you want to download some files from other machine or internet, you need to use this utility. I here list some of the useful wget commands for downloading the files from network. Basic syntax of wget wget option… URL… 1. To download a file, normally we use wget To Download many files, use wget 2. Create a text file which contains list of url to download. Cat > downlo -i -r download_list 3. Wget -c 4. 5. wget with retries option The -a option allows append to . 6. 7. 8. 10.
Customizing your xterm. Posted by Steve on Thu 30 Dec 2004 at 18:29 xterm is the default terminal emulator, or shell program, that people use when running the X11 Window System. Despite its apparent simplicity it's very customizable, allowing you to change fonts, sizes, and colours with only a little effort. Many newcomers to Linux don't realise that there are menu options available with xterms and instead seem to believe that they must use the KDE, or GNOME terminal applications to get adjust fonts. Open up an xterm, and you can see menus by holding down the "Ctrl" key upon your keyboard and clicking upon the body of the window with either your left, right, or center mouse button. For example if you wish to see to adjust the font you're using you can use "Ctrl + Right mouse button" to show the following menu: Selecting the options with the mouse will change your currently open window. Other aspects of your xterms can be configured, such as the background colour and the text colour. xrdb -merge ~/.Xresources !
[arch-announce] Having pacman verify packages - Bruno's All Things Linux - Scot's Newsletter Forums. CSN11121/CSN11122 Lecture Plan. Post-Installation Instructions (Feb 11, 2012) for 2011.11 (Page 1) / FAQs, Tips & Tutorials / ArchBang Forums. This thread is outdated. Don't use these instructions for later isos These instructions are for the 2011.11 release. It is highly recommended now to use the new updated unofficial March release to overcome all these steps in the deprecated 2011.11 release. The new March release links are here: This thread is closed and these post-install instructions are no longer supported in the Forums. ArchVortex - March 24, 2012 I just did another fresh install on one of my computers and here's what I did to make things go smoother: Step 1. as root update the mirrors and repositories Step 2. update pacman.
Step 3. initialize keys move your mouse or cursor around to generate entropy for key initialization Step 4. merge pacman.conf file with pacman.conf.pacnew Go to /etc folder Backup your pacman.conf # sudo mv /etc/pacman.conf ~/pacman.conf.backup Move pacman.conf.pacnew to pacman.conf # sudo mv pacman.conf.pacnew pacman.conf Step 5. And change the keyserver line to. How to add Swap on Linux. By admin Swap is a type of filesystem and is a virtual memory. Whenever your RAM is full, your operating system will look for further memory in your swap space. For this reason, you reserve some part of the hard disk to create a swap partition.
Identifying Current Swap Space Usage [root@localhost ~]# cat /proc/swaps Filename Type Size Used Priority /dev/sda7 partition 1951740 4 -1 Alternatively, use the swapon command: [root@localhost ~]# swapon -s Filename Type Size Used Priority /dev/sda7 partition 1951740 4 -1 Finally, the free command may also be used: [root@localhost ~]# free total used free shared buffers cached Mem: 895112 721656 173456 0 36592 310156 -/+ buffers/cache: 374908 520204 Swap: 1952736 4 1952732 Adding a Swap File Additional swap may be quickly added to the system by creating a file and assigning it as swap. Create the swap file using the dd command: Configure the file as swap Change the permission of the swap file so that only root can access it [root@localhost ~]# swapoff -a. How to close automatically the terminal after a certain period of inactivity. From time to time, we execute several commands, such as commands of update,upgrade,install, and remove ... and after we close our Terminal.
This trick will close the terminal automatically for you after a period of time after being inactive. We open the file /etc/profile with any editor you like (as root), I prefer Gedit : sudo gedit /etc/profile Once the file is opened, append the following lines to the end of the file : TMOUT=seconds export TMOUT Replace seconds by any number of seconds you want. Source /etc/profile In my example I used 600, so my Terminal will be automatically closed after 600 seconds of inactivity. Linux Security HOWTO. This document will attempt to explain some procedures and commonly-used software to help your Linux system be more secure. It is important to discuss some of the basic concepts first, and create a security foundation, before we get started. 2.1. Why Do We Need Security? In the ever-changing world of global data communications, inexpensive Internet connections, and fast-paced software development, security is becoming more and more of an issue.
Security is now a basic requirement because global computing is inherently insecure. As your data goes from point A to point B on the Internet, for example, it may pass through several other points along the way, giving other users the opportunity to intercept, and even alter, it. 2.2. First, keep in mind that no computer system can ever be completely secure. Another factor to take into account is that the more secure your system is, the more intrusive your security becomes. 2.3. 2.4. A generally-accepted security policy starts with the phrase 2.5. Five Tools for Measuring and Improving Linux System Performance.
Out of the box, Linux runs just fine for many uses. But if you find yourself needing to ferret out performance problems or tune the kernel for better performance, Linux has more than enough tools to measure and tweak system performance. In this guide, we'll take a look at five of the best utilities to measure system performance and tweak the Linux kernel. You'll find many, many, many utilities for measuring and improving Linux system performance. The utilities discussed here are chosen because they're widely available, and provide a good scope functionality. This won't be the last word on system performance and administration on Linux.com, so don't worry. KDE System Monitor The KDE System Monitor and GNOME System Monitor are both good for getting a quick visual representation of the state of your system. If you don't have the KDE System Monitor installed, look for a package called ksysguard.
To fire up your very own custom monitors, go to File -> New Tab. Monitor Your System With Dstat. Email Tracer Tutorial - a reference guide to trace email messages. 4 Simple Changes to Stop Online Tracking. <b>Whoa, you aren't browsing with Javascript, congratulations! You probably don't need this tutorial, which will look broken for you. Just install an adblocker with a privacy/tracking protection list, block third-party cookies, block referers, and install HTTPS Everywhere.
</b><br /> In less than 10 minutes, you can drastically improve your privacy online and protect yourself against unwanted and invisible tracking. Note that these privacy safeguards will also be blocking some ads. EFF is working with online advertisers to try to convince them to provide real privacy protections for users, but until they agree to meaningful standards about online tracking, these steps will be necessary for users to safeguard their browsing privacy.
Aside from removing ads, these changes won't affect your browsing experience on the vast majority of websites. Firefox instructions Chrome instructions Step 1: Install Adblock Plus Get Adblock Plus. Step 2: Change Cookie Settings Great! Step 3: Turn Off Referers. Installing User Mode Linux. Abstract This article will show you how to do a basic installation of usermode linux on a 2.6.15.1 kernel.
This document, Installing User Mode Linux is copyright (c) 2006 by the Clarkson Open Source Institute. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is available at No liability for the contents of this document can be accepted.
Use the concepts, examples and information at your own risk. All copyrights are held by their by their respective owners, unless specifically noted otherwise. There are several tools and utilities that you will need to have installed in order to successfully build and run user-mode linux. GCC-This tutorial was completed with gcc4. Download, configure and build. QEMU Emulator User Documentation. QEMU Emulator User Documentation 1 Introduction 1.1 Features QEMU is a FAST! Processor emulator using dynamic translation to achieve good emulation speed.
QEMU has two operating modes: Full system emulation. QEMU can run without a host kernel driver and yet gives acceptable performance. For system emulation, the following hardware targets are supported: PC (x86 or x86_64 processor) ISA PC (old style PC without PCI bus) PREP (PowerPC processor) G3 Beige PowerMac (PowerPC processor) Mac99 PowerMac (PowerPC processor, in progress) Sun4m/Sun4c/Sun4d (32-bit Sparc processor) Sun4u/Sun4v (64-bit Sparc processor, in progress) Malta board (32-bit and 64-bit MIPS processors) MIPS Magnum (64-bit MIPS processor) ARM Integrator/CP (ARM) ARM Versatile baseboard (ARM) ARM RealView Emulation/Platform baseboard (ARM) Spitz, Akita, Borzoi, Terrier and Tosa PDAs (PXA270 processor) Luminary Micro LM3S811EVB (ARM Cortex-M3) Luminary Micro LM3S6965EVB (ARM Cortex-M3) Freescale MCF5208EVB (ColdFire V2). 2.1 Linux. Killer way to slay the Google beast! Text smaller Text bigger Who in the world knows as much about you and your private thoughts as Google?
That’s the question Katherine Albrecht, radio talk-show host and spokeswoman for Startpage, a search engine that protects user privacy, is posing to American Internet surfers. “It would blow people’s minds if they knew how much information the big search engines have on the American public,” she told WND. “In fact, their dossiers are so detailed they would probably be the envy of the KGB.” Google exposed in Joseph Farah’s “Stop the Presses!” Autographed only at WND’s online store. It happens every day, Albrecht explained. “If you get a rash between your toes, you go into Google,” she said. Albrecht said Americans unwittingly share their most private thoughts with search engines, serving up snippets of deeply personal information about their lives, habits, troubles, health concerns, preferences and political leanings. A video of Schmidt’s statements follows: But she said there’s good news. Howto: Linux shell restricting access. By default when you add new user to system (/etc/passwd file) it grant shell access.
If you are creating new users for POP3 or SMTP (mail server) or FTP then you do not need to grant shell access to a user. Remember as soon as you add a user he/she can login via telnet or ssh. The best way to put Linux shell access restriction is to use special shell called nologin, which politely refuse a login. It displays a message that an account is not available and exits non-zero. It is intended as a replacement shell field for accounts that have been disabled or have other user level access such as ftp, pop3, smtp etc.
/sbin/nologin Example New user accounts Add a new user called tony with no shell access: # useradd -s /sbin/nologin tony Debain / Ubuntu Linux user modify above command as follows: # useradd -s /usr/sbin/nologin tony Please note that above method is very easy to use but if you have a large setup. you need to take help of PAM (and may be OpenLDAP / MySQL). Decrypting A Wireshark Capture With Ssl Traffic - Critical Security.NET. How to hack email passwords using Linux and Ettercap. Startpage launches anonymous Web search service. How To Control What Your Friends See About You in Their Facebook Tickers | Guide (7 Steps) « Wonder How To. How to Control What Your Friends See About You in Their Facebook Tickers Not everything that Facebook does is in the best interest of its users. Just look at past examples such as social ads, facial recognition, and instant personalization.
Users were perfectly fine without these, and they still are. And now there's another annoying problem that Facebook users have to deal with—the ticker. Facebook's ticker is that annoying updates box on the right-hand side of your account. Right now, the ticker only appears when you're on the News Feed, and it hasn't invaded the right side of your personal account page yet. The good thing? The bad? What Your Friends See About You If you want to control how your friends see you in their tickers, this is as good as it gets... Step 1 Post Privacy Settings To stop everything you share on Facebook from showing up in your friends' tickers, you'll need to make sure your privacy settings are strict. Step 2 Commenting and Liking Step 3 Games and Apps.
Everything You Always Wanted to Know About Lawful Access, But Were (Understandably) Afraid To Ask. Public Safety Minister Vic Toews is expected to introduce lawful access legislation tomorrow in the House of Commons. An Act to enact the Investigating and Preventing Criminal Electronic Communications Act and to amend the Criminal Code and others Acts, likely to be Bill C-30, will mark the return of lawful access in a single legislative package. While it is certainly possible for a surprise, the bill is expected to largely mirror the last lawful access bills (C-50, 51, and 52) that died on the order paper with the election last spring. This long post tries to address many of the most common questions and misconceptions about lawful access in Canada.
The questions and answers are: What is lawful access? What is Bill C-30 likely to contain? Isn't ISP customer name and address information similar to phone book data that is readily available to the public without privacy concerns? What is Bill C-30 likely to contain? No. No. Yes. Toews has now backed away from that pledge. Yes. The "alias" command. You almost certainly have speed dial set up on your home, office and mobile phone.
It saves time, ensures against a failing memory and allows you to work smarter. Devotees of the command line don’t have to be left out in the cold. One of the crown jewels of GNU/Linux is that every user, be he ne’er so base, has at his or her fingertips the kind of power of which even Caligula could not dream. Alright, I’m exaggerating—a little. GNU/Linux comes with many commands and you use them every time you open a console and interact with it through the shell. The Bash shell (often described as the great grandaddy of all shells or, less flatteringly, as “an historical wart on the Bourne shell”) comes as standard with virtually every version of GNU/Linux and there are others too: Fish, Korn and Zsh. The built-in command I want to look at is alias. Yes you do. Where are your default aliases? Figure 1: Location of aliases in .bashrc Figure 2: List of aliases in the default shell.
The Linux Geeks. WiLL X TrEmE. Linux Convert an MP3 File to WAV Format. Linux Administration Made Easy. Javascript PC Emulator. Problems with arch linux pacman 4.0. Top 5 security Myths about Linux; and their realities. Dropbox Uploader Bash Script: Useful For Servers, Raspberry Pi And More. If Not True Then False | If !1 0 | Linux and Development Guides. Fake or SPOOFED email Detection. FBCMD: Command Line for Facebook. Linux Kernel /etc/sysctl.conf Security Hardening. Linux display or change a pre-login message – /etc/issue file. Sc: the Venerable Spreadsheet Calculator.
Encryption. SQlite3. How to Use the Fast and Powerful Mutt Email Client with Gmail. Understanding the dig command. Chroot. Apps. Xiph.org. Command line. Miscellaneous. IRC. IPtables. Servers.