Troubleshooting Computers
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Sicurezza Informatica Cominciando a Parlare Di Ciò Che Può Rallentare I Nostri Computers
SEC 1 - Ma quanto pesa il mio computer? … diventa ‘il miglior amico’, lo si configura secondo le proprie necessità professionali e non solo, lo si arricchisce con lo screen saver più simpatico e lo sfondo per il desktop più rilassante, lo si stipa di cartelle e icone che possano contenere files di vario tipo … Già! Dobbiamo pure fare attenzione al sovrappeso del computer … Considerazione che vale soprattutto quando lo si usa per fare trading on line. Le Piattaforme Tol generalmente non occupano troppo spazio sul disco. Sono applicazioni che si scaricano da internet linkandosi direttamente nel sito web della Banca o della Sim prescelta ma, la corretta visualizzazione delle stesse, la risposta da parte dei vari pulsanti e icone, nonché la velocità delle transazioni dipendono moltissimo dalla quantità di software, applicazioni e files che, prima di loro, hanno preso posto sul nostro personal computer e i cui processi vengono attivati ad ogni accensione della macchina. Non sono molte le persone che utilizzano macchine diverse per usi diversi e va detto che, anche quando si possiedono più computer, si tende quasi sempre a personalizzarne e ad usarne uno soltanto: questo diventa ‘il miglior amico’, lo si configura secondo le proprie necessità professionali e non solo, lo si arricchisce con lo screen saver più simpatico e lo sfondo per il desktop più rilassante, lo si stipa di cartelline e icone che possano contenere files di vario tipo. Dai documenti alle fotografie, dai brani musicali ai filmatini … latte, pane e uova. A parte gli scherzi, dopo pochi mesi di utilizzo, qualsiasi personal computer è già in sovrappeso. -
Estimating the Resilience of Networks Against Zero Day Attacks
Network Security Metrics: Estimating the Resilience of Networks Against Zero Day Attacks Mengyuan Zhang A thesis in The Concordia Institute for Information Systems Engineering Presented in Partial Fulfillment of the Requirements For the Degree of Doctor of Philosophy (Information and Systems Engineering) at Concordia University Montreal,´ Quebec,´ Canada December 2017 c Mengyuan Zhang, 2017 CONCORDIA UNIVERSITY School of Graduate Studies This is to certify that the thesis prepared By: Ms. Mengyuan Zhang Entitled: Network Security Metrics: Estimating the Resilience of Networks Against Zero Day Attacks and submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Information and Systems Engineering) complies with the regulations of this University and meets the accepted standards with re- spect to originality and quality. Signed by the final examining commitee: Chair Dr. E. Shihab External Examiner Dr. M. Zulkernine External to Program Dr. D. Qiu Examiner Dr. C. Assi Examiner Dr. M. Mannan Thesis Supervisor Dr. L. Wang Approved by Dr. Chadi Assi, Graduate Program Director February 21, 2018 Dr. Amir Asif, Dean Faculty of Engineering and Computer Science Abstract Network Security Metrics: Estimating the Resilience of Networks Against Zero Day Attacks Mengyuan Zhang, Ph.D. Concordia University, 2017 Computer networks are playing the role of nervous systems in many critical infras- tructures, governmental and military organizations, and enterprises today. Protecting such mission critical networks means more than just patching known vulnerabilities and deploy- ing firewalls or IDSs. Proper metrics are needed in evaluating the security level of networks and provide security enhanced solutions. However, without considering unknown zero-day vulnerabilities, security metrics are insufficient to capture the true security level of a net- work. -
15 Essential Open Source Tools for Windows Admins – Raj Kumar Maurya
Tools 15 ESSENTIAL OpEN SOURCE TOOLS FOR WINDOWS ADMINS – Raj Kumar Maurya 1: Wireshark Wireshark is used for network troubleshooting, analysis, software and communications protocol development, and education. Wireshark is cross-platform, using the Qt widget toolkit in current releases to implement its user interface, and using pcap to capture packets, it runs on GNU/Linux, OS X, BSD, Solaris, some other Unix-like operating systems, and Microsoft Windows. 2: AMANDA AMANDA, the Advanced Maryland Automatic Network Disk Archiver, is a backup solution that allows the IT administrator to set up a single master backup server to back up multiple hosts over network to tape drives/ changers or disks or optical media. Amanda uses native utilities and formats (e.g. dump and/or GNU tar) and can back up a large number of servers and workstations running multiple versions of Linux or Unix. Amanda is a fully integrated business system which contains everything from customer details, offer, order, production, logistics, project, economy, salary to market and personal planning. 3: MailArchiva MailArchiva is a powerful, full featured email archiving and compliance solution for mail systems such as Microsoft Exchange. It stores all incoming, outgoing and internal emails for long term storage. MailArchiva is the development, to provide, dual license of e-mail archiving software free of the Open Source Edition and paid Enterprise Edition. Various OS, can respond to the mail server environment, because of the multi-lingual, have been used in various countries and regions. 46 PCQUEST FEBRUARY 2017 pcquest.com twitter.com/pcquest facebook.com/pcquest linkd.in/pcquest [email protected] 4: Exchange 2010 RBAC Manager Exchange 2010 RBAC Manager is a tool for admins working with role-based access control and Exchange. -
Defraggler Windows 10 Download Free - Reviews and Testimonials
defraggler windows 10 download free - Reviews and Testimonials. It's great to hear that so many people have found Defraggler to be the best defrag tool available. Here's what people are saying in the media: "Defraggler is easy to understand and performs its job well. if you want to improve computer performance, this is a great place to start." Read the full review. LifeHacker. "Freeware file defragmentation utility Defraggler analyzes your hard drive for fragmented files and can selectively defrag the ones you choose. The graphical interface is darn sweet." Read the full review. PC World. "Defraggler will show you all your fragmented files. You can click one to see where on the disk its various pieces lie, or defragment just that one. This can be useful when dealing with very large, performance critical files such as databases. Piriform Defraggler is free, fast, marginally more interesting to watch than the default, and has useful additional features. What's not to like?" Read the full review. - Features. Most defrag tools only allow you to defrag an entire drive. Defraggler lets you specify one or more files, folders, or the whole drive to defragment. Safe and Secure. When Defraggler reads or writes a file, it uses the exact same techniques that Windows uses. Using Defraggler is just as safe for your files as using Windows. Compact and portable. Defraggler's tough on your files – and light on your system. Interactive drive map. At a glance, you can see how fragmented your hard drive is. Defraggler's drive map shows you blocks that are empty, not fragmented, or needing defragmentation. -
Ultradefrag Handbook Standard Edition
UltraDefrag Handbook 9.0.1 Standard Edition Chapter 1 UltraDefrag Handbook Authors Stefan Pendl <[email protected]> Dmitri Arkhangelski <[email protected]> Table of Contents 1. Introduction 2. Installation 3. Graphical Interface 4. Console Interface 5. Boot Time Defragmentation 6. Automatic Defragmentation 7. File Fragmentation Reports 8. Tips and Tricks 9. Frequently Asked Questions 10. Troubleshooting 11. Translation 12. Development 13. Credits and License License UltraDefrag is licensed under the terms of the End User License Agreement. This documentation is licensed under the terms of the GNU Free Documentation License. 2 UltraDefrag Handbook Generated by Doxygen Chapter 2 Introduction UltraDefrag is a powerful disk defragmenter for Windows. It can quickly boost performance of your computer and is easy to use. Also it can defragment your disks automatically so you won’t need to take care about that yourself. UltraDefrag has the following features: • automatic defragmentation • fast and efficient defragmentation algorithms • safe environment preventing files corruption • detailed file fragmentation reports • defragmentation of individual files/folders • defragmentation of locked system files • defragmentation of NTFS metafiles (including MFT) and streams • exclusion of files by path, size and number of fragments • fully configurable disk optimization • disk processing time limit • defragmentation of disks having the specified fragmentation level • automatic hibernation or shutdown after the job completion • multilingual graphical interface (over 60 languages available) • one click defragmentation via Windows Explorer’s context menu • powerful command line interface • easy to use portable edition • full support of 64-bit editions of Windows UltraDefrag can defragment both FAT and NTFS disks with just a couple of restrictions: • It cannot defragment FAT directories, because their first clusters are immovable. -
Principe Et Logiciels Rappel Sur Le Fonctionnement D'un Disque
http://www.clubic.com/article-92386-1-guide-defragmentation-principe-logiciels.html Sommaire La défragmentation : principe et logiciels..................................................................................................................................... 1 Rappel sur le fonctionnement d'un disque dur............................................................................................................................. 1 Le système de fichiers, ou comment sont agencées vos données............................................................................................... 2 Quand survient la fragmentation.................................................................................................................................................. 2 ... il vous faut défragmenter ! ....................................................................................................................................................... 2 La question la plus fréquente : quand ?....................................................................................................................................... 2 La défragmentation sous Windows.............................................................................................................................................. 3 Et Windows Vista ? ..................................................................................................................................................................... 4 La longue liste des logiciels payants .......................................................................................................................................... -
Ultradefrag Handbook Enterprise Edition
UltraDefrag Handbook 9.0.0 Enterprise Edition Chapter 1 UltraDefrag Handbook Authors Stefan Pendl <[email protected]> Dmitri Arkhangelski <[email protected]> Table of Contents 1. Introduction 2. Installation 3. Graphical Interface 4. Console Interface 5. Boot Time Defragmentation 6. Automatic Defragmentation 7. File Fragmentation Reports 8. Tips and Tricks 9. Frequently Asked Questions 10. Troubleshooting 11. Translation 12. Development 13. Credits and License License UltraDefrag is licensed under the terms of the End User License Agreement. This documentation is licensed under the terms of the GNU Free Documentation License. 2 UltraDefrag Handbook Generated by Doxygen Chapter 2 Introduction UltraDefrag is a powerful disk defragmenter for Windows. It can quickly boost performance of your computer and is easy to use. Also it can defragment your disks automatically so you won’t need to take care about that yourself. UltraDefrag has the following features: • automatic defragmentation • fast and efficient defragmentation algorithms • safe environment preventing files corruption • detailed file fragmentation reports • defragmentation of individual files/folders • defragmentation of locked system files • defragmentation of NTFS metafiles (including MFT) and streams • exclusion of files by path, size and number of fragments • fully configurable disk optimization • disk processing time limit • defragmentation of disks having the specified fragmentation level • automatic hibernation or shutdown after the job completion • multilingual graphical interface (over 60 languages available) • one click defragmentation via Windows Explorer’s context menu • powerful command line interface • easy to use portable edition • full support of 64-bit editions of Windows UltraDefrag can defragment both FAT and NTFS disks with just a couple of restrictions: • It cannot defragment FAT directories, because their first clusters are immovable. -
Discovering Program Topoi Carlo Ieva
Unveiling source code latent knowledge : discovering program topoi Carlo Ieva To cite this version: Carlo Ieva. Unveiling source code latent knowledge : discovering program topoi. Programming Lan- guages [cs.PL]. Université Montpellier, 2018. English. NNT : 2018MONTS024. tel-01974511 HAL Id: tel-01974511 https://tel.archives-ouvertes.fr/tel-01974511 Submitted on 8 Jan 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE POUR OBTENIR LE GRADE DE DOCTEUR DE L’UNIVERSITÉ DE MONTPELLIER En Informatique École doctorale : Information, Structures, Systèmes Unité de recherche : LIRMM Révéler le contenu latent du code source A la découverte des topoi de programme Unveiling Source Code Latent Knowledge Discovering Program Topoi Présentée par Carlo Ieva Le 23 Novembre 2018 Sous la direction de Prof. Souhila Kaci Devant le jury composé de Michel Rueher, Professeur, Université Côte d’Azur, I3S, Nice Président du jury Yves Le Traon, Professeur, Université du Luxembourg, Luxembourg Rapporteur Lakhdar Sais, Professeur, Université d’Artois, CRIL, Lens Rapporteur -
Cristina Varga
KNOWLEDGE TRANSMISSION IN CYBERSPACE Discourse Analysis of Professional Web Forums as Internet Subgenre Cristina Varga TESI DOCTORAL UPF / 2011 DIRECTOR DE LA TESI Dra. Clara Ubaldina Lorda (Departament de Traducció i Ciències del Llenguatge, Universitat Pompeu Fabra, Barcelona) Dr. Mircea Borcil ă (Catedra de limba și litertura română , Universitatea “Babeş-Bolyai ”, Cluj -Napoca, Romania) Maria, Ioan, Elena and Ştefan, in memoriam ABSTRACT Since the beginning of the Internet, its features have been used to communicate knowledge between researchers in different universities or scientific laboratories, and later, with the increasing growth of the World Wide Web, knowledge became a collective good shared by its users. The current investigation has three main objectives: a) to describe the professional web forum as a discursive subgenre of the web, b) to illustrate the mechanism of knowledge transmission on the professional web forums, and c) to observe the variation across languages of the professional web forum as a subgenre of the knowledge transmission process. In the analysis of the linguistic material of the professional web forum corpus we used a theoretical framework based on different linguistic trends and theories currently developed in France. The analysed material consists in a comparable texts corpus, organised, in five sub-corpora, in function of the language the participants in the web forums use to communicate: English, Spanish, French, Romanian, and Catalan. The analysis of the linguistic material of the professional web forum corpus provides essential information concerning the discursive features of the knowledge transmission process in different languages. RESUMEN El desarrollo de las nuevas tecnologías y el uso del Internet como nueva plataforma para la enseñanza crean nuevas modalidades de interacción comunicativa entre los usuarios de Internet con el fin de aprender, comunicar y transmitir conocimiento. -
Freeware-List.Pdf
FreeWare List A list free software from www.neowin.net a great forum with high amount of members! Full of information and questions posted are normally answered very quickly 3D Graphics: 3DVia http://www.3dvia.com...re/3dvia-shape/ Anim8or - http://www.anim8or.com/ Art Of Illusion - http://www.artofillusion.org/ Blender - http://www.blender3d.org/ CreaToon http://www.creatoon.com/index.php DAZ Studio - http://www.daz3d.com/program/studio/ Freestyle - http://freestyle.sourceforge.net/ Gelato - http://www.nvidia.co...ge/gz_home.html K-3D http://www.k-3d.org/wiki/Main_Page Kerkythea http://www.kerkythea...oomla/index.php Now3D - http://digilander.li...ng/homepage.htm OpenFX - http://www.openfx.org OpenStages http://www.openstages.co.uk/ Pointshop 3D - http://graphics.ethz...loadPS3D20.html POV-Ray - http://www.povray.org/ SketchUp - http://sketchup.google.com/ Sweet Home 3D http://sweethome3d.sourceforge.net/ Toxic - http://www.toxicengine.org/ Wings 3D - http://www.wings3d.com/ Anti-Virus: a-squared - http://www.emsisoft..../software/free/ Avast - http://www.avast.com...ast_4_home.html AVG - http://free.grisoft.com/ Avira AntiVir - http://www.free-av.com/ BitDefender - http://www.softpedia...e-Edition.shtml ClamWin - http://www.clamwin.com/ Microsoft Security Essentials http://www.microsoft...ity_essentials/ Anti-Spyware: Ad-aware SE Personal - http://www.lavasoft....se_personal.php GeSWall http://www.gentlesec...m/download.html Hijackthis - http://www.softpedia...ijackThis.shtml IObit Security 360 http://www.iobit.com/beta.html Malwarebytes' -
E D G E the Outer
August 2012 The Outer Edge Page 1 | The Outer E August 2012 Vol. 26, No. 1 d Whole No. 303 ISSN 1055-4399 g e The Friendly Computer Club Helping Make Computers Friendly. On the Web at www.cipcug.org COMMAND.COM Attendance at the By Jim Brown, President July general meeting: “Promoting the Harmony of Computer Education, and Camaraderie” 44 members and guests. t is true: “Time Marches On,“ and we are going to celebrate it. At our To Contact CIPCUG September regular meeting (Sept. 22, 2012), we will celebrate our The Outer Edge......................805-485-7121 computer club’s 26 th birthday. General Information………...805-289-3960 Mailing Address...P.O. Box 51354, Oxnard, CA The planning for the celebration is ongoing, and we plan to have fun Iwith a look to the past, reconnecting with longtime members, especially 93031-1354 On the Web: cipcug.org those who were instrumental in the establishment of this club, and honoring On Facebook: Facebook.com/groups/cipcug their dedication and sacrifices. Following the meeting we plan to have a social lunch at the nearby Texas Cattle Company restaurant, which has a moderately priced ($10-$15) menu, which we all can afford. Costs might force The planning committee does have a few requests for our membership- changes in TOE Please sign up for the luncheon. We just need to know how The time has come to do some seri- many people plan to attend (we encourage you to bring your ous thinking about our newsletter, The Brown significant other) so that we can give an approximate count to Outer Edge. -
Mise En Oeuvre De La Virtualisation
Mise en oeuvre d'un outils de virtualisation Mise en Oeuvre de la Virtualisation Table des matières 1 Virtualisation (informatique) .................................................................. 2 1.1 Notions ................................................................................................ 2 1.2 Intérêts de la virtualisation ........................................................ 2 1.3 Historique .................................................................................................... 3 1.4 Comparaison de différentes techniques de virtualisation . 3 1.4.1 Isolateur ........................................................................... 3 1.4.2 Noyau en espace utilisateur ............................. 4 1.4.3 Machine virtuelle .............................................................................. 4 1.4.4 Para virtualisation ou hyperviseur ....................... 5 1.4.5 Matériel ............................................................................. 6 2 Xen ................................................................................................................ 6 2.1 Présentation .................................................................................... 6 2.2 Architecture de Xen ..................................................... 7 2.3 Acteurs industriels ............................................................ 7 2.4 Comparaison avec d'autres solutions de virtualisation . 7 3 VirtualBox ........................................................................... 8 3.1