learning about linux and open source

... available in some cases Some open source projects are popular and complex enough that for-profit companies will support the software for a fee Commercial support for an open source piece of software ... are open source; and others are simply made freely available For the more budget-conscious, free sounds great But they must remember that nothing is truly “free.” Any tool will take time and ... stakeholders (the Pharaoh); and a project manager (the prime minister and the nephew of the Pharaoh) (Kozak-Holland, 2013) Today project management is a highly studied and well-defined discipline

Ngày tải lên: 10/09/2021, 09:08

... open source development efforts that have built the Cloud Foundry as open source software as well as to enable its adoption globally. For U & Me Interview www.openSourceForU.com | oPeN SoUrce ... financial services institutions and management consulting firms And it primarily leverages open source when offering its services Aggarwal tells Open Source For You that open source has helped analytics ... is a pre-release version and all its features may not be stable on supported systems For more news, visit www.opensourceforu.com Trang 13www.OpenSourceForU.com | OPEN SOURCE FOR YOU | OCtObER

Ngày tải lên: 02/03/2019, 10:35

... simple, popular, and widely used programming language, and scikit-learn, an open source Machine Learning library. In each chapter, we will present a different Machine Learning setting and a couple ... Trang 2Learning scikit-learn: Machine Learning in PythonExperience the benefits of machine learning techniques by applying them to real-world problems using Python and the open source scikit-learn ... working sessions and always supporting me Thanks to my parents, grandma, and aunt Pinky for their unconditional love and for always supporting my projects Thanks to my friends and teammates at

Ngày tải lên: 05/03/2019, 08:36

... money with Open Source • Sell services, support, warranty • Work on features in exchange for money • Use Open Source in your day job/consulting • Use work time to fix/improve Open Source • Build ... lectures for LPI Academy courses Web and Email • Chromium and FireFox are popular open source browsers popular, ensuring excellent support • Thunderbird, Evolution, and KMail are popular email clients ... that provides tools to Linux and other Unix Oses • GPLv2 and GPLv3 licenses allow you to modify and redistribute the software • Copyleft provision dictates that you must share source code to your

Ngày tải lên: 30/01/2020, 03:17

... Trang 1Open Source and Viral Marketing The viral marketing concept as a model for open source software to reach the critical mass for global brand awareness based on the ... they compare and evaluate and must Trang 4be observed, they need to feel comfortable in the channel Moore emphasizes that in the mainstream a demand for the product has to be created and then supply ... supplier has to be able to meet the demanders’ orders The whole product needs to be shipped out and distributed Failure to meet the demand will collapse the tornado and market leadership is gone Another

Ngày tải lên: 23/03/2014, 03:20

... more about Linux fi rst – and I’d recommend it! – turn to p6. THE BEGINN ER’S GUIDE TO ALL THING S OPEN SOU RCE! The #1 source for Linux Trang 4Ready to master Linux? Start your engines and pick ... as Linux – Firefox, OpenOffice.org, Thunderbird, Gimp and many more run on Windows and Linux, and if you’ve used them before you’ll find that they work just the same on Linux The best bit about ... tell you a little bit about Linux 1 Linux is free! That’s right – Linux is completely free! You can take the DVD that came with this magazine, copy it a thousand times, and give it to everyone

Ngày tải lên: 28/06/2014, 14:20

... tarball version, andthen combine elements from the two for a complete solution Obtaining Open Source Software ; Sites such as SourceForge (www.sourceforge.com), RPMFind(www.rpmfind.net), and SecurityFocus ... most current Red Hat Linux errata andupdates Red Hat Linux Errata and Update Service Packages The first step in hardening a Linux server is to apply the most current errata andUpdate Service Package ... written specifically to Red Hat Linux and Mandrake Linux, but can be easily modified to run on most Unix flavors.The specific Red Hat/Mandrakecontent has been generalized, and now the hard-code filenames

Ngày tải lên: 08/08/2014, 21:23

... about Nmap is that its developer,Fyodor, is extremely talented, active, and a good collaborator He and his col-leagues update Nmap often, and the updates usually bring desirable new featuresand ... this by issuing the following command:antivir ~ -allfiles -s -r4 -rf/log.txt -ro This command has AntiVir go into verbose mode, and then depositall of its standard output into a file in your ... also review and update existing jobs, simply by highlighting the existing job and then clicking either Job Info or Trang 9Open dialog box, shown in Figure 3.4 Once this dialog box opens, you can

Ngày tải lên: 08/08/2014, 21:23

... Snort (open source) www.snort.org Widely considered to be one of the more flexible and reliable lightweight network-based IDS applications. Shadow (open source) A collection of Perl scripts and ... more about additional opensource IDS applications at the following sites: ■ www.securityfocus.com ■ http://packetstorm.securify.com ■ www.linuxsecurity.com General Dependencies for Open Source ... applications generally run as daemons and scan log files inreal time.They search for open network connections, and/or monitor the ports on your system Each time a port is opened, the log analysis IDS

Ngày tải lên: 08/08/2014, 21:23

... (IP)addresses of the client and server, so that only the network traffic between thetwo IP addresses will be captured and displayed This chapter introduces you to three popular open source Linux sniffers: ... sniffers Understanding Packet Analysis and TCP Handshakes As you would expect, packet analysis requires an understanding of networkpackets.This chapter requires you to already understand the seven ... connectionestablishment and termination, which includes the TCP handshake.TCP handshakes use special mechanisms, called flags, to establish and termi-nate a connection Flags are included in the TCP header, and

Ngày tải lên: 08/08/2014, 21:23

... this host, and that this hostand user can request services from other hosts Because the TGT is signed by the user’s password and turned into a hash, the user can use the kinit command and his own ... kinit com-mand has the Kerberos client contact the KDC and obtain a TGT, as shown inFigures 6.12 and 6.13 Trang 9Figure 6.12Using the kinit CommandKDC Kerberos Client kinit Command Figure 6.13Receiving ... administrative password, then uses the addprinc -randkeycommand to add a host principal named host/www. yournetwork.com.The -randkey option is unique to host and host daemon princi-pals, because after

Ngày tải lên: 08/08/2014, 21:23

... WAN (FreeS/WAN) is a Linux VPN implementation that uses IPSec and IKE. IPSec and IKE were discussed in the previous sections and are used to provide secure authentication and encryption of data ... IPSec and the numerous implementations for the IPSec standard. IPSec provides secure authentication and encryption over a network by securing all packets at Layer 3, the network layer, of the Open ... supports IPSec in its routers and is one of the leading sup- porters for IPSec standardization. IPSec is currently a proposed standard (Request www.syngress.com 138_linux_08 6/20/01 9:46 AM Page

Ngày tải lên: 08/08/2014, 21:23

... do the same thing as repeating the command and reversing the source and nation flags (-s and -d) desti-If you are using Iptables, issue the following commands: iptables –A FORWARD –m multiport ... Names and Numbers Iptables/Ipchains RFC Name and ICMP Message Name Number Description common ping command. echo-reply 0 Echo Reply The reply a host gives to the Trang 5source-quence 4 Source ... information in this chapter and additional resources, you will be able to create a firewall that blocks known attacks Trang 14Counting Bandwidth UsageA Linux firewall can inform you about the number of

Ngày tải lên: 08/08/2014, 21:23

... this chapter, you will learn abouthow to properly test and log activity.You will be able to verify that the firewall isworking, make intelligent changes on demand, and generate useful reports.This ... authentication.■ Open ports/daemons Many firewalls and/or routers allow sary ports to remain open, which can expose your firewall to threatsunnecessarily unneces-■ Monitoring system hard drives, RAM, and ... system is becoming overburdened: ■ vmstat Informs you about the amount of random RAM and virtualRAM used on the system ■ top Used to inform you about the processes that occupy the largestpercentage

Ngày tải lên: 08/08/2014, 21:23

... completely proprietary. ; Open source code does not necessarily have to be free For example, nies such as Red Hat and Caldera sell their products, which are based on the open source Linux kernel. compa-Soft ... kernel. compa-Soft Skills: Coping with Open Source Quirks ; As you use open source code, remember that this code may represent a work in progress. ; Sometimes, open source code changes radically, forcing ... version, and then combine elements from the two for a complete solution. Obtaining Open Source Software ; Sites such as SourceForge (www.sourceforge.com), RPMFind (www.rpmfind.net), and SecurityFocus

Ngày tải lên: 08/08/2014, 21:23

... into Terminology Understanding Open Source Credit Unions and Open Source: An Analogy The Role of Open Source Licenses The Open Source Definition Different Types of Open Source Licenses 153 154 ... Intellectual Property and Open Source Other resources from O’Reilly Related titles oreilly.com Applied Software Management Hackers & Painters Open Sources Open Sources 2.0 Producing Open Source Software ... First Edition Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of O’Reilly Media, Inc Intellectual Property and Open Source and related trade dress...

Ngày tải lên: 21/02/2014, 15:21

... B.5 Basic Linux Commands B.5.1 The passwd Command B.5.2 The man Command B.5.3 The ls Command B.5.4 The cp Command B.5.5 The mv Command ... Lucas, and Samuel Williams PROCESS ALGEBRA FOR PARALLEL AND DISTRIBUTED PROCESSING Edited by Michael Alexander and William Gardner SCIENTIFIC DATA MANAGEMENT: CHALLENGES, TECHNOLOGY, AND DEPLOYMENT ... Command B.5.6 The rm Command B.5.7 The cd Command B.5.8 The mkdir Command B.5.9 The rmdir Command B.5.10 I/O Re-Direction and Pipe Operators B.6 Shell...

Ngày tải lên: 19/03/2014, 14:10

... Perspectives on Open Source Josh Lerner and Jean Tirole II 47 The Evaluation of Free /Open Source Software Development Standing in Front of the Open Source Steamroller Robert L Glass Has Open Source Software ... Free /Open Source Software Development II The Evaluation of Free /Open Source Software Development III Free /Open Source Software Processes and Tools IV Free /Open Source Software Economic and Business ... free and open source are maintained and vigilantly watch-dogged—by the Free Software Foundation (FSF)1 and Open Source Initiative (OSI).2 However, the definitions are substantively identical, and...

Ngày tải lên: 11/06/2014, 15:25

... moves fast on the road 10 11 Learning About Tools and Machines How tools and machines help us? Tools and machines use pushes and pulls to make things move Tools and machines can help us hard things! ... talk about the fruit? Position is where an object is How can you talk about position? You can use words such as behind and in front of to talk about position Look at the picture of the man and ... help you talk about position Use meters and centimeters to measure meter 11 centimeters Learning About Motion Motion is the act of moving In what way things move? Some things move back and forth...

Ngày tải lên: 31/10/2014, 14:31

... of plants and animals that no longer live on Earth A Fossil Forms An animal dies This is a fossil of a shell Long ago an animal lived in the shell Sand and mud cover the body The sand and mud turn ... Its arms and legs were long and thin Deltadromeus and Carcharodontosaurus both ate meat This Deltadromeus skeleton is at a Chicago museum Compare it to the human skeleton 11 What we know about dinosaurs? ... did many dinosaurs walk? 20 Write about a time that you read a book about dinosaurs or saw an educational television program about dinosaurs What did you learn about dinosaurs from that book or...

Ngày tải lên: 03/11/2014, 21:27