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Web Vmstat Any Distros, Especially Here’S Where Web Vmstat Comes Those Targeted at In
FOSSPICKS Sparkling gems and new releases from the world of FOSSpicks Free and Open Source Software Mike Saunders has spent a decade mining the internet for free software treasures. Here’s the result of his latest haul… Shiny statistics in a browser Web VMStat any distros, especially Here’s where Web VMStat comes those targeted at in. It’s a system monitor that runs Madvanced users, ship an HTTP server, so you can connect with shiny system monitoring tools to it via a web browser and see on the desktop. Conky is one such fancy CSS-driven charts. Before you tool, while GKrellM was all the rage install it, you’ll need to get the in the last decade, and they are websocketd utility, which you can genuinely useful for keeping tabs find at https://github.com/ on your boxes, especially when joewalnes/websocketd. Helpfully, you’re an admin in charge of the developer has made pre- various servers. compiled executables available, so Now, pretty much all major you can just grab the 32-bit or distros include a useful command 64-bit tarball, extract it and there line tool for monitoring system you have it: websocketd. (Of course, Here’s the standard output for vmstat – not very interesting, right? resource usage: vmstat. Enter if you’re especially security vmstat 1 in a terminal window and conscious, you can compile it from copy the aforementioned you’ll see a regularly updating (once its source code.) websocketd into the same place. per second) bunch of statistics, Next, clone the Web VMStat Git Then just enter: showing CPU usage, free RAM, repository (or grab the Zip file and ./run swap usage and so forth. -
Resurrect Your Old PC
Resurrect your old PCs Resurrect your old PC Nostalgic for your old beige boxes? Don’t let them gather dust! Proprietary OSes force users to upgrade hardware much sooner than necessary: Neil Bothwick highlights some great ways to make your pensioned-off PCs earn their keep. ardware performance is constantly improving, and it is only natural to want the best, so we upgrade our H system from time to time and leave the old ones behind, considering them obsolete. But you don’t usually need the latest and greatest, it was only a few years ago that people were running perfectly usable systems on 500MHz CPUs and drooling over the prospect that a 1GHz CPU might actually be available quite soon. I can imagine someone writing a similar article, ten years from now, about what to do with that slow, old 4GHz eight-core system that is now gathering dust. That’s what we aim to do here, show you how you can put that old hardware to good use instead of consigning it to the scrapheap. So what are we talking about when we say older computers? The sort of spec that was popular around the turn of the century. OK, while that may be true, it does make it seem like we are talking about really old hardware. A typical entry-level machine from six or seven years ago would have had something like an 800MHz processor, Pentium 3 or similar, 128MB of RAM and a 20- 30GB hard disk. The test rig used for testing most of the software we will discuss is actually slightly lower spec, it has a 700MHz Celeron processor, because that’s what I found in the pile of computer gear I never throw away in my loft, right next to my faithful old – but non-functioning – Amiga 4000. -
Easy Slackware
1 Создание легкой системы на базе Slackware I - Введение Slackware пользуется заслуженной популярностью как классический linux дистрибутив, и поговорка "кто знает Red Hat тот знает только Red Hat, кто знает Slackware тот знает linux" несмотря на явный снобизм поклонников "бога Патре га" все же имеет под собой основания. Одним из преимуществ Slackware является возможность простого создания на ее основе практически любой системы, в том числе быстрой и легкой десктопной, о чем далее и пойдет речь. Есть дис трибутивы, клоны Slackware, созданные именно с этой целью, типа Аbsolute, но все же лучше создавать систему под себя, с максимальным учетом именно своих потребностей, и Slackware пожалуй как никакой другой дистрибутив подходит именно для этой цели. Легкость и быстрота системы определяется выбором WM (DM) , набором программ и оптимизацией программ и системы в целом. Первое исключает KDE, Gnome, даже новые версии XFCЕ, остается разве что LXDE, но набор программ в нем совершенно не устраивает. Оптимизация наиболее часто используемых про грамм и нескольких базовых системных пакетов осуществляется их сборкой из сорцов компилятором, оптимизированным именно под Ваш комп, причем каж дая программа конфигурируется исходя из Ваших потребностей к ее возможно стям. Оптимизация системы в целом осуществляется ее настройкой согласно спе цифическим требованиям к десктопу. Такой подход был выбран по банальной причине, возиться с gentoo нет ни какого желания, комп все таки создан для того чтобы им пользоваться, а не для компиляции программ, в тоже время у каждого есть минимальный набор из не большого количества наиболее часто используемых программ, на которые стоит потратить некоторое, не такое уж большое, время, чтобы довести их до ума. Кро ме того, такой подход позволяет иметь самые свежие версии наиболее часто ис пользуемых программ. -
Behavior Based Software Theft Detection, CCS 2009
Behavior Based Software Theft Detection 1Xinran Wang, 1Yoon-Chan Jhi, 1,2Sencun Zhu, and 2Peng Liu 1Department of Computer Science and Engineering 2College of Information Sciences and Technology Pennsylvania State University, University Park, PA 16802 {xinrwang, szhu, jhi}@cse.psu.edu, [email protected] ABSTRACT (e.g., in SourceForge.net there were over 230,000 registered Along with the burst of open source projects, software open source projects as of Feb.2009), software theft has be- theft (or plagiarism) has become a very serious threat to the come a very serious concern to honest software companies healthiness of software industry. Software birthmark, which and open source communities. As one example, in 2005 it represents the unique characteristics of a program, can be was determined in a federal court trial that IBM should pay used for software theft detection. We propose a system call an independent software vendor Compuware $140 million dependence graph based software birthmark called SCDG to license its software and $260 million to purchase its ser- birthmark, and examine how well it reflects unique behav- vices [1] because it was discovered that certain IBM products ioral characteristics of a program. To our knowledge, our contained code from Compuware. detection system based on SCDG birthmark is the first one To protect software from theft, Collberg and Thoborson that is capable of detecting software component theft where [10] proposed software watermark techniques. Software wa- only partial code is stolen. We demonstrate the strength of termark is a unique identifier embedded in the protected our birthmark against various evasion techniques, including software, which is hard to remove but easy to verify. -
Schon Mal Dran Gedacht,Linux Auszuprobieren? Von G. Schmidt
Schon mal dran gedacht, Linux auszuprobieren? Eine Einführung in das Betriebssystem Linux und seine Distributionen von Günther Schmidt-Falck Das Magazin AUSWEGE wird nun schon seit 2010 mit Hilfe des Computer-Betriebs- system Linux erstellt: Texte layouten, Grafiken und Fotos bearbeiten, Webseiten ge- stalten, Audio schneiden - alles mit freier, unabhängiger Software einer weltweiten Entwicklergemeinde. Aufgrund der guten eigenen Erfahrungen möchte der folgende Aufsatz ins Betriebssystem Linux einführen - mit einem Schwerpunkt auf der Distri- bution LinuxMint. Was ist Linux? „... ein hochstabiles, besonders schnelles und vor allem funktionsfähiges Betriebssystem, das dem Unix-System ähnelt, … . Eine Gemeinschaft Tausender programmierte es und verteilt es nun unter der GNU General Public Li- cense. Somit ist es frei zugänglich für jeden und kos- tenlos! Mehrere Millionen Leute, viele Organisatio- nen und besonders Firmen nutzen es weltweit. Die meisten nutzen es aus folgenden Gründen: • besonders schnell, stabil und leistungs- stark • gratis Support aus vielen Internet- Newsgruppen Tux, der Pinguin, ist das Linux-Maskottchen • übersichtliche Mailing-Listen • massenweise www-Seiten • direkter Mailkontakt mit dem Programmierer sind möglich • Bildung von Gruppen • kommerzieller Support“1 Linux ist heute weit verbreitet im Serverbereich: „Im Oktober 2012 wurden mindes- tens 32% aller Webseiten auf einem Linux-Server gehostet. Da nicht alle Linux-Ser- ver sich auch als solche zu erkennen geben, könnte der tatsächliche Anteil um bis zu 24% höher liegen. Damit wäre ein tatsächlicher Marktanteil von bis zu 55% nicht 1 http://www.linuxnetworx.com/linux-richtig-nutzen magazin-auswege.de – 2.11.2015 Schon mal dran gedacht, Linux auszuprobieren? 1 auszuschliessen. (…) Linux gilt innerhalb von Netzwerken als ausgesprochen sicher und an die jeweiligen Gegebenheiten anpassbar. -
Lightweight Distros on Test
GROUP TEST LIGHTWEIGHT DISTROS LIGHTWEIGHT DISTROS GROUP TEST Mayank Sharma is on the lookout for distros tailor made to infuse life into his ageing computers. On Test Lightweight distros here has always been a some text editing, and watch some Linux Lite demand for lightweight videos. These users don’t need URL www.linuxliteos.com Talternatives both for the latest multi-core machines VERSION 2.0 individual apps and for complete loaded with several gigabytes of DESKTOP Xfce distributions. But the recent advent RAM or even a dedicated graphics Does the second version of the distro of feature-rich resource-hungry card. However, chances are their does enough to justify its title? software has reinvigorated efforts hardware isn’t supported by the to put those old, otherwise obsolete latest kernel, which keeps dropping WattOS machines to good use. support for older hardware that is URL www.planetwatt.com For a long time the primary no longer in vogue, such as dial-up VERSION R8 migrators to Linux were people modems. Back in 2012, support DESKTOP LXDE, Mate, Openbox who had fallen prey to the easily for the i386 chip was dropped from Has switching the base distro from exploitable nature of proprietary the kernel and some distros, like Ubuntu to Debian made any difference? operating systems. Of late though CentOS, have gone one step ahead we’re getting a whole new set of and dropped support for the 32-bit SparkyLinux users who come along with their architecture entirely. healthy and functional computers URL www.sparkylinux.org that just can’t power the newer VERSION 3.5 New life DESKTOP LXDE, Mate, Xfce and others release of Windows. -
1 What Is Gimp? 3 2 Default Short Cuts and Dynamic Keybinding 9
GUM The Gimp User Manual version 1.0.0 Karin Kylander & Olof S Kylander legalities Legalities The Gimp user manual may be reproduced and distributed, subject to the fol- lowing conditions: Copyright © 1997 1998 by Karin Kylander Copyright © 1998 by Olof S Kylander E-mail: [email protected] (summer 98 [email protected]) The Gimp User Manual is an open document; you may reproduce it under the terms of the Graphic Documentation Project Copying Licence (aka GDPL) as published by Frozenriver. This document is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANT- ABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Graphic Documentation Project Copying License for more details. GRAPHIC DOCUMENTATION PROJECT COPYING LICENSE The following copyright license applies to all works by the Graphic Docu- mentation Project. Please read the license carefully---it is similar to the GNU General Public License, but there are several conditions in it that differ from what you may be used to. The Graphic Documentation Project manuals may be reproduced and distrib- uted in whole, subject to the following conditions: The Gimp User Manual Page i Legalities All Graphic Documentation Project manuals are copyrighted by their respective authors. THEY ARE NOT IN THE PUBLIC DOMAIN. • The copyright notice above and this permission notice must be preserved complete. • All work done under the Graphic Documentation Project Copying License must be available in source code for anyone who wants to obtain it. The source code for a work means the preferred form of the work for making modifications to it. -
Milax - Opensolaris Small Livecd Distro Alexander R
USE IMPROVE EVANGELIZE MilaX - OpenSolaris small LiveCD distro Alexander R. Eremin MilaX Developer USE IMPROVE EVANGELIZE Can Solaris become as small as DSL? Solaris 2 USE IMPROVE EVANGELIZE DSS 0.1 Feb 2008 CDDL v.1 MilaX 0.1, 0.1.1 Feb 2008 MilaX 0.2 Mar 2008 Milax 0.3 May 2008 June 2008 MilaX 0.3.1 MilaX 0.3.1 server 3 USE IMPROVE EVANGELIZE Last version released June 10 2008 4 USE IMPROVE EVANGELIZE MilaX LiveCD, LiveUSB USE IMPROVE EVANGELIZE Virtualizing MilaX LiveCD,LiveUSB Qemu VirtualBox VMware USE IMPROVE EVANGELIZE MilaX advantages ● Small size ● Fast boot ● Loading live image from RAM ● Booting from various storage devices ● People can try small Solaris without installing on the harddisk. ● All Solaris features: dtrace,zfs, zones,e.t.c ● Latest drivers and bugfixes ● Two versions: desktop and server USE IMPROVE EVANGELIZE When MilaX is the best choice? ● Old PC's ● Not enough RAM ● Not enough free disk space ● Fast and small server (0.3.1 server) ● Fast developing (0.3.1 server) ● Virtual testing USE IMPROVE EVANGELIZE MilaX Filesystem Ramdisk 105mb, UFS Root FS /,/lib,/dev,/devices,/var Ramdisk Swap RAM /usr (RAM < 512mb) /usr, /alex, /root, /tmp Ram > 512MB HSFS Filesystem (/usr mount) LOFI Pseudo Device /.cdrom/usr.zlib HSFS Filesystem (/.cdrom mount) MilaX Live CD USE IMPROVE EVANGELIZE Milax 0.3.1 Apps Desktop version ● Gtk-Terminal, Beaver, Netsurf, Sylpheed, Midnight Commander, emelFM, XMMS, Xpdf, VNC viewer, Rdesktop, Nmap, gFTP, gPicview, Conky, XChat, Xpad. Server version ● Apache, PHP, Samba and NFS servers, GCC, GMake, Midnight Commander, Pine, Mutt, Elinks, Lynx. -
Finite State Recognizer and String Similarity Based Spelling
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by BRAC University Institutional Repository FINITE STATE RECOGNIZER AND STRING SIMILARITY BASED SPELLING CHECKER FOR BANGLA Submitted to A Thesis The Department of Computer Science and Engineering of BRAC University by Munshi Asadullah In Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Computer Science and Engineering Fall 2007 BRAC University, Dhaka, Bangladesh 1 DECLARATION I hereby declare that this thesis is based on the results found by me. Materials of work found by other researcher are mentioned by reference. This thesis, neither in whole nor in part, has been previously submitted for any degree. Signature of Supervisor Signature of Author 2 ACKNOWLEDGEMENTS Special thanks to my supervisor Mumit Khan without whom this work would have been very difficult. Thanks to Zahurul Islam for providing all the support that was required for this work. Also special thanks to the members of CRBLP at BRAC University, who has managed to take out some time from their busy schedule to support, help and give feedback on the implementation of this work. 3 Abstract A crucial figure of merit for a spelling checker is not just whether it can detect misspelled words, but also in how it ranks the suggestions for the word. Spelling checker algorithms using edit distance methods tend to produce a large number of possibilities for misspelled words. We propose an alternative approach to checking the spelling of Bangla text that uses a finite state automaton (FSA) to probabilistically create the suggestion list for a misspelled word. -
A Crash Course on UNIX
AA CCrraasshh CCoouurrssee oonn UUNNIIXX UNIX is an "operating system". Interface between user and data stored on computer. A Windows-style interface is not required. Many flavors of UNIX (and windows interfaces). Solaris, Mandrake, RedHat (fvwm, Gnome, KDE), ... Most UNIX users use "shells" (or "xterms"). UNIX windows systems do provide some Microsoft Windows functionality. TThhee SShheellll A shell is a command-line interface to UNIX. Also many flavors, e.g. sh, bash, csh, tcsh. The shell provides commands and functionality beyond the basic UNIX tools. E.g., wildcards, shell variables, loop control, etc. For this tutorial, examples use tcsh in RedHat Linux running Gnome. Differences are minor for the most part... BBaassiicc CCoommmmaannddss You need these to survive: ls, cd, cp, mkdir, mv. Typically these are UNIX (not shell) commands. They are actually programs that someone has written. Most commands such as these accept (or require) "arguments". E.g. ls -a [show all files, incl. "dot files"] mkdir ASTR688 [create a directory] cp myfile backup [copy a file] See the handout for a list of more commands. AA WWoorrdd AAbboouutt DDiirreeccttoorriieess Use cd to change directories. By default you start in your home directory. E.g. /home/dcr Handy abbreviations: Home directory: ~ Someone else's home directory: ~user Current directory: . Parent directory: .. SShhoorrttccuuttss To return to your home directory: cd To return to the previous directory: cd - In tcsh, with filename completion (on by default): Press TAB to complete filenames as you type. Press Ctrl-D to print a list of filenames matching what you have typed so far. Completion works with commands and variables too! Use ↑, ↓, Ctrl-A, & Ctrl-E to edit previous lines. -
Introduction
1 Introduction The X Window System was originally developed in the early 1980’s, and encompassed from the beginning many of the windowing capabilities that we now take for granted. While in a number of ways X was (and still is) command-line oriented, the capability of moving away from the command line was inherent from the very beginning in the architecture of the system. The advent of the desktop graphical user interface (GUI) didn’t require a major redesignof the X Window System. Figure 1-1 illustrates what an X desktop might have looked like in the early days. Figure 1-1: X desktop in the early days using twm But times have changed. Shown in Figure 1-2 is what a modern X desktop can now look like. This example uses the KDE Desktop Environment described later in Chapter 9, Using KDE. Figure 1-2: Modern X desktop using KDE Quite different in appearance--the more modern example has a fancier desktop and is visually more appealing--but technically there’s little difference between these examples. The X server still communicates with the X client via the X protocol over a network, and a window manager is still being used to manage the client application windows. The basics haven’t changed, just the frills. Part I of this book describes the underlying features of X that make it such a versatile and enduring system; Part II takes a look at some of the modern window managers and the two major desktop environments, GNOME and KDE; and Part III puts the theory, which sometimes needs configuration help and effort, into practice. -
Aligning Intent and Behavior in Software Systems: How Programs Communicate & Their Distribution and Organization
© 2020 William B. Dietz ALIGNING INTENT AND BEHAVIOR IN SOFTWARE SYSTEMS: HOW PROGRAMS COMMUNICATE & THEIR DISTRIBUTION AND ORGANIZATION BY WILLIAM B. DIETZ DISSERTATION Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Computer Science in the Graduate College of the University of Illinois at Urbana-Champaign, 2020 Urbana, Illinois Doctoral Committee: Professor Vikram Adve, Chair Professor John Regehr, University of Utah Professor Tao Xie Assistant Professor Sasa Misailovic ABSTRACT Managing the overwhelming complexity of software is a fundamental challenge because complex- ity is the root cause of problems regarding software performance, size, and security. Complexity is what makes software hard to understand, and our ability to understand software in whole or in part is essential to being able to address these problems effectively. Attacking this overwhelming complexity is the fundamental challenge I seek to address by simplifying how we write, organize and think about programs. Within this dissertation I present a system of tools and a set of solutions for improving the nature of software by focusing on programmer’s desired outcome, i.e. their intent. At the program level, the conventional focus, it is impossible to identify complexity that, at the system level, is unnecessary. This “accidental complexity” includes everything from unused features to independent implementations of common algorithmic tasks. Software techniques driving innovation simultaneously increase the distance between what is intended by humans – developers, designers, and especially the users – and what the executing code does in practice. By preserving the declarative intent of the programmer, which is lost in the traditional process of compiling and linking and building software, it is easier to abstract away unnecessary details.