DOCSLIB.ORG

Netcat Power Tools.Pdf

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Netcat Power Tools.Pdf Visit us at WWW . SYNGRESS . COM Syngress is committed to publishing high-quality books for IT Professionals and delivering those books in media and formats that fit the demands of our customers. We are also committed to extending the utility of the book you purchase via additional materials available from our Web site. SOLUTIONS WEB SITE To register your book, visit www.syngress.com/solutions. Once registered, you can access our [email protected] Web pages. There you may find an assortment of valueadded features such as free e-books related to the topic of this book, URLs of related Web sites, FAQs from the book, corrections, and any updates from the author(s). ULTIMATE CDs Our Ultimate CD product line offers our readers budget-conscious compilations of some of our best-selling backlist titles in Adobe PDF form. These CDs are the perfect way to extend your reference library on key topics pertaining to your area of expertise, including Cisco Engineering, Microsoft Windows System Administration, CyberCrime Investigation, Open Source Security, and Firewall Configuration, to name a few. DOWNLOADABLE E-BOOKS For readers who can’t wait for hard copy, we offer most of our titles in downloadable Adobe PDF form. These e-books are often available weeks before hard copies, and are priced affordably. SYNGRESS OUTLET Our outlet store at syngress.com features overstocked, out-of-print, or slightly hurt books at significant savings. SITE LICENSING Syngress has a well-established program for site licensing our e-books onto servers in corporations, educational institutions, and large organizations. Contact us at [email protected] for more information. CUSTOM PUBLISHING Many organizations welcome the ability to combine parts of multiple Syngress books, as well as their own content, into a single volume for their own internal use. Contact us at [email protected] for more information. This page intentionally left blank Jan Kanclirz Jr. Technical Editor Brian Baskin Dan Connelly Michael J. Schearer Eric S. Seagren Thomas Wilhelm Elsevier, Inc., the author(s), and any person or firm involved in the writing, editing, or production (collectively “Makers”) of this book (“the Work”) do not guarantee or warrant the results to be obtained from the Work. There is no guarantee of any kind, expressed or implied, regarding the Work or its contents. The Work is sold AS IS and WITHOUT WARRANTY. You may have other legal rights, which vary from state to state. In no event will Makers be liable to you for damages, including any loss of profits, lost savings, or other incidental or consequential damages arising out from the Work or its contents. Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages, the above limitation may not apply to you. You should always use reasonable care, including backup and other appropriate precautions, when working with computers, networks, data, and files. Syngress Media®, Syngress®, “Career Advancement Through Skill Enhancement®,” “Ask the Author UPDATE®,” and “Hack Proofing®,” are registered trademarks of Elsevier, Inc. “Syngress: The Definition of a Serious Security Library”™, “Mission Critical™,” and “The Only Way to Stop a Hacker is to Think Like One™” are trademarks of Elsevier, Inc. Brands and product names mentioned in this book are trademarks or service marks of their respective companies. PUBLISHED BY Syngress Publishing, Inc. Elsevier, Inc. 30 Corporate Drive Burlington, MA 01803 Netcat Power Tools Copyright © 2008 by Elsevier, Inc. All rights reserved. Printed in the United States of America. Except as permitted under the Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher, with the exception that the program listings may be entered, stored, and executed in a computer system, but they may not be reproduced for publication. Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 ISBN 13: 978-1-59749-257-7 Page Layout and Art: SPi Publishing Services Copy Editor: Judy Eby For information on rights, translations, and bulk sales, contact Matt Pedersen, Commercial Sales Director and Rights, at Syngress Publishing; email [email protected]. Technical Editor Jan Kanclirz Jr. (CCIE #12136-Security, CCSP, CCNP, CCIP, CCNA, CCDA, INFOSEC Professional, Cisco WLAN Support/Design Specialist) is currently a Senior Network Information Security Architect at IBM Global Services. Jan specializes in multivendor designs and post-sale implementations for several technologies such as VPNs, IPS/IDS, LAN/WAN, firewalls, content networking, wireless, and VoIP. Beyond network designs and engineering, Jan’s background includes extensive experience with open source applications and Linux. Jan has contributed to several Syngress book titles: Managing and Securing Cisco SWAN, Practical VoIP Security, and How to Cheat at Securing a Wireless Network. In addition to Jan’s full-time position at IBM G.S., Jan runs a security portal www.MakeSecure.com, where he dedicates his time to security awareness and consulting. Jan lives in Colorado, where he enjoys outdoor adventures. Jan would like to thank his family, slunicko, and friends for all of their support. v Contributing Authors Brian Baskin [MCP, CTT+] is a researcher and developer for Computer Sciences Corporation. In his work, he researches, develops, and instructs computer forensic techniques for members of the government, military, and law enforcement. Brian currently specializes in Linux/Solaris intrusion investigations, as well as in-depth analysis of various network protocols. He also has a penchant for penetration testing and is currently developing and teaching basic exploitation techniques for clients. Brian has been developing and instructing computer security courses since 2000, including presentations and training courses at the annual Department of Defense Cyber Crime Conference. He is an avid amateur programmer in many languages, beginning when his father purchased QuickC for him when he was 11, and has geared much of his life around the implementations of technology. Brian has written a handful of Mozilla Firefox extensions; some, like Passive Cache, are publicly available. He currently spends most of his time writing insecure PHP/ MySQL web-based apps. Brian has been a Linux fanatic since 1994, and is slowly being drawn to the dark side of Apples and Macs. Aaron W. Bayles is an INFOSEC Principal in Houston, Texas. He has provided services to clients with penetration testing, vulnerability assessment, risk assessments, and security design/architecture for enterprise networks. He has over 12 years experience with INFOSEC, with specific experience with wireless security, penetration testing, and incident response. Aaron’s background includes work as a senior security engineer with SAIC in Virginia and Texas. He is also the lead author of the Syngress book, InfoSec Career Hacking, Sell your Skillz, Not Your Soul, as well as a contributing author of the First Edition of Penetration Tester’s Open Source Toolkit. Aaron has provided INFOSEC support and penetration testing for multiple agencies in the U.S. Department of the Treasury, such as the Financial Management Service and Securities and Exchange Commission, and the Department of Homeland Security, such as U. S. Customs and vi Border Protection. He holds a Bachelor’s of Science degree in Computer Science with post-graduate work in Embedded Linux Programming from Sam Houston State University and is also a CISSP. Dan Connelly (MSIA, GSNA) is a Senior Penetration Tester for a Federal Agency in the Washington, D.C. area. He has a wide range of information technology experience including: web applications and database development, system administration, and network engineering. For the last 5 years, he has been dedicated to the information security industry providing: penetration testing, wireless audits, vulnerability assessments, and network security engineering for many federal agencies. Dan holds a Bachelor’s degree in Information Systems from Radford University, and a Master’s degree in Information Assurance from Norwich University. Michael J. Schearer is an active-duty Naval Flight Officer and Electronic Countermeasures Officer with the U.S. Navy. He flew combat missions during Operations Enduring Freedom, Southern Watch, and Iraqi Freedom. He later took his electronic warfare specialty to Iraq, where he embedded on the ground with Army units to lead the counter- IED fight. He currently serves as an instructor of Naval Science at the Pennsylvania State University Naval Reserve Officer Training Corps Unit, University Park, PA. Michael is an active member of the Church of WiFi and has spoken at Shmoocon, DEFCON, and Penn State’s Security Day, as well as other forums. His work has been cited in Forbes, InfoWorld and Wired. Michael is an alumnus of Bloomsburg University where he studied Political Science and Georgetown University where he obtained his degree in National Security Studies. While at Penn State, he is actively involved in IT issues. He is a licensed amateur radio operator, moderator of the Church of WiFi and Remote-Exploit Forums, and a regular on the DEFCON and NetStumbler forums. Eric S. Seagren (CISA, CISSP-ISSAP, SCNP, CCNA, CNE-4, MCP+I, MCSE-NT) has 10 years of experience in the computer industry, with the last eight years spent in the financial services industry working for a Fortune 100 company. Eric started his computer career working on Novell servers vii and performing general network troubleshooting for a small Houston-based company. Since he has been working in the financial services industry, his position and responsibilities have advanced steadily. His duties have included server administration, disaster recovery responsibilities, business continuity coordinator, Y2K remediation, network vulnerability assessment, and risk management responsibilities. He has spent the last few years as an IT architect and risk analyst, designing and evaluating secure, scalable, and redundant networks.
Load more

Recommended publications
  • Cygwin User's Guide
    Cygwin User’s Guide Cygwin User’s Guide ii Copyright © Cygwin authors Permission is granted to make and distribute verbatim copies of this documentation provided the copyright notice and this per- mission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this documentation under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this documentation into another language, under the above conditions for modified versions, except that this permission notice may be stated in a translation approved by the Free Software Foundation. Cygwin User’s Guide iii Contents 1 Cygwin Overview 1 1.1 What is it? . .1 1.2 Quick Start Guide for those more experienced with Windows . .1 1.3 Quick Start Guide for those more experienced with UNIX . .1 1.4 Are the Cygwin tools free software? . .2 1.5 A brief history of the Cygwin project . .2 1.6 Highlights of Cygwin Functionality . .3 1.6.1 Introduction . .3 1.6.2 Permissions and Security . .3 1.6.3 File Access . .3 1.6.4 Text Mode vs. Binary Mode . .4 1.6.5 ANSI C Library . .4 1.6.6 Process Creation . .5 1.6.6.1 Problems with process creation . .5 1.6.7 Signals . .6 1.6.8 Sockets . .6 1.6.9 Select . .7 1.7 What’s new and what changed in Cygwin . .7 1.7.1 What’s new and what changed in 3.2 .
    [Show full text]
  • Netcat and Trojans/Backdoors
    Netcat and Trojans/Backdoors ECE4883 – Internetwork Security 1 Agenda Overview • Netcat • Trojans/Backdoors ECE 4883 - Internetwork Security 2 Agenda Netcat • Netcat ! Overview ! Major Features ! Installation and Configuration ! Possible Uses • Netcat Defenses • Summary ECE 4883 - Internetwork Security 3 Netcat – TCP/IP Swiss Army Knife • Reads and Writes data across the network using TCP/UDP connections • Feature-rich network debugging and exploration tool • Part of the Red Hat Power Tools collection and comes standard on SuSE Linux, Debian Linux, NetBSD and OpenBSD distributions. • UNIX and Windows versions available at: http://www.atstake.com/research/tools/network_utilities/ ECE 4883 - Internetwork Security 4 Netcat • Designed to be a reliable “back-end” tool – to be used directly or easily driven by other programs/scripts • Very powerful in combination with scripting languages (eg. Perl) “If you were on a desert island, Netcat would be your tool of choice!” - Ed Skoudis ECE 4883 - Internetwork Security 5 Netcat – Major Features • Outbound or inbound connections • TCP or UDP, to or from any ports • Full DNS forward/reverse checking, with appropriate warnings • Ability to use any local source port • Ability to use any locally-configured network source address • Built-in port-scanning capabilities, with randomizer ECE 4883 - Internetwork Security 6 Netcat – Major Features (contd) • Built-in loose source-routing capability • Can read command line arguments from standard input • Slow-send mode, one line every N seconds • Hex dump of transmitted and received data • Optional ability to let another program service established connections • Optional telnet-options responder ECE 4883 - Internetwork Security 7 Netcat (called ‘nc’) • Can run in client/server mode • Default mode – client • Same executable for both modes • client mode nc [dest] [port_no_to_connect_to] • listen mode (-l option) nc –l –p [port_no_to_connect_to] ECE 4883 - Internetwork Security 8 Netcat – Client mode Computer with netcat in Client mode 1.
    [Show full text]
  • A Single Packet Authorization System for Tor Bridges
    BridgeSPA: A Single Packet Authorization System for Tor Bridges by Robin Smits A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Master of Mathematics in Computer Science Waterloo, Ontario, Canada, 2012 c Robin Smits 2012 I hereby declare that I am the sole author of this thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. ii Abstract Tor is a network designed for low-latency anonymous communications. Tor clients form circuits through relays that are listed in a public directory, and then relay their encrypted traffic through these circuits. This indirection makes it difficult for a local adversary to determine with whom a particular Tor user is communicating. Tor may also be used to circumvent regional Internet censorship, since the final hop of a user’s connection can be in a different country. In response, some local adversaries restrict access to Tor by blocking each of the publicly listed relays. To deal with such an adversary, Tor uses bridges, which are unlisted relays that can be used as alternative entry points into the Tor network. Unfortunately, issues with Tor’s bridge implementation make it easy to discover large numbers of bridges. This makes bridges easy to block. Also, an adversary that hoards this information may use it to determine when each bridge is online over time. If a bridge operator also browses with Tor on the same machine, this information may be sufficient to deanonymize him.
    [Show full text]
  • Netcat Starter
    www.allitebooks.com Instant Netcat Starter Learn to harness the power and versatility of Netcat, and understand why it remains an integral part of IT and Security Toolkits to this day K.C. Yerrid BIRMINGHAM - MUMBAI www.allitebooks.com Instant Netcat Starter Copyright © 2013 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: January 2013 Production Reference: 1170113 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-84951-996-0 www.packtpub.com www.allitebooks.com Credits Author Project Coordinators K.C. "K0nsp1racy" Yerrid Shraddha Bagadia Esha Thakker Reviewer Jonathan Craton Proofreader Kelly Hutchison IT Content and Commissioning Editor Graphics Grant Mizen Aditi Gajjar Commissioning Editor Production Coordinator Priyanka Shah Melwyn D'sa Technical Editor Cover Work Ameya Sawant Melwyn D'sa Copy Editor Cover Image Alfida Paiva Conidon Miranda www.allitebooks.com About the author K.C.
    [Show full text]
  • FRESHMAN GUIDE to Successful College Planning
    FRESHMAN GUIDE to Successful College Planning Artwork by: Serena Walkin Ballou Senior High School Class of 2001 Graduate COPYRIGHT © 2003 DISTRICT OF COLUMBIA COLLEGE ACCESS PROGRAM. ALL RIGHTS RESERVED. PRINTED IN THE UNITED STATES OF AMERICA. FRESHMAN GUIDE TO SUCCESSFUL COLLEGE PLANNING TABLE OF CONTENTS Introduction 2 How to Contact 3 Part I Student Guide to Freshman Year 6 Section I Selecting Your High School Courses 7 Section II Attendance, Time Management, & Study Skills 10 Section III Understanding Your GPA 12 Section IV Standardized Tests 13 Section V Activities for College Bound Freshman 14 Section VI Types of Colleges 15 Section VII Activity Worksheet 16 Part II Parental Guide to Financial Planning 19 Parent Agreement 22 INTRODUCTION Welcome to DC-CAP Freshman Guide to College Planning. The purpose of this guide is to assist students in the District of Columbia Public and Public Charter High Schools who are starting their Freshman Year of high school. We hope that this handbook will be useful to you and your parents as you set out to begin the journey of college planning during your high school years. Again, we encourage students to visit their DC- CAP advisor and register with our program. Congratulations!! Welcome to your first year of high school. Follow this guide step-by-step and you will guarantee yourself SUCCESS!!!!!!! Please read this handbook with your parents and return the signed agreement form to the DC-CAP Advisor assigned to your school. What is DC-CAP? The District of Columbia College Access Program (DC-CAP) is a non-profit organization funded by Washington Area corporations and foundations dedicated to encouraging and enabling District of Columbia public and public charter high school students to enter and graduate from college.
    [Show full text]
  • Free Linux Based Ftp Server
    Free linux based ftp server Graphical UI based FTP Servers; Terminal/Console based FTP Servers Linux, AIX, UNIX, IBM i, VMware, EC2, Azure, Mac OS, Free FTP server with ​Graphical · ​Console/terminal-based · ​Summary board. The same source code compiles and runs on Linux, OpenBSD, NetBSD, one- disk router), ROOT Linux, Gentoo Linux and almost every other free operating system. Pure-FTPd can act as private FTP server and disallow all anonymous. Learn How FTP Server Works, Setup Open Source vsftpd Server in Linux, On Debian based distros like Ubuntu, you can install it like this. Welcome to the home of CrossFTP Server, the free secure FTP server for Windows, Mac, Linux, and more. almost everything: OS X - +, WinXP - Win+, Linux, Solaris, BSD, Unix, etc! CrushFTP is a robust file transfer server that makes it easy to setup secure is web based allowing you the ability to manage and monitor the server from You can see things like the number of active connections, free drive space. Download the latest and greatest of Linux FTP Server Software here. glFTPd is a free FTP server software for Linux and UNIX based systems. It is highly. Is there any sort of made for Linux FTP server software that features a GUI? I am a total newbie and I am getting my butt kicked by VSFTPD. vsftpd is a GPL licensed FTP server for UNIX systems, including Linux. It is secure and extremely fast. It is stable. Don't take my word for it, though. Below, we will. A glance at the common Linux ftp servers.
    [Show full text]
  • 1 KONFIGURACE GLFTPD a PZS-NG 1.1 Zadání 1.2 Teoretický
    1 KONFIGURACE GLFTPD A PZS-NG 1.1 Zadání 1. Proveďte nastavení portů pro pasivní režim přenosu. 2. Proveďte vytvoření uživatele a nastavení jeho hodnot ratio, num_logins. 3. Proveďte zabezpečení GlFTPd pomocí SSL/TLS. 4. Nakonfigurujte PZS-NG pro ověřování kontrolních součtů a propojte jejsFTP démonem GlFTPd. 1.2 Teoretický úvod FTP (File Transfer Protocol) je aplikačním protokolem vrstvového modelu TCP/IP (Transmission Control Protocol/Internet Protocol). Využívá dvě TCP spojení trans- portní vrstvy označované jako řídící (kontrolní) a datové.[1, 2] Jedná se o textově orientovaný protokol pracující na principu klient-server, tzn. existuje server, kam jsou připojeni jednotliví klienti (například osobní počítače). Textové příkazy jsou posílány v paketech, které mohou být odchyceny a bez větších problémů přečteny. Nejedná se o nový protokol. FTP byl definován v RFC 114 (Request for Comments). Aktuální je definice v RFC 959[1], které vyšlo v říjnu roku 1985 a s použitím aktu- alizačních RFC je dnes stále využíváno převážně ke sdílení souborů.[1] 1.2.1 Aktivní režim Jedná se většinou o preferovaný režim přenosu, jelikož server nemusí otevírat porty a nemůže být přetížen mnoha žádostmi o data. Jak je zobrazeno na obr. 1.1. Přes řídící spojení je mezi klientem a serverem dohodnuto, na jaké IP adrese a portu budou data k dispozici (pomocí příkazu PORT). Spojení je navázáno ze serveru na sdělenou IP a port, kde se stáhne nebo nahraje soubor. Role serveru a klienta jsou tedy pro datové spojení vyměněny.[2] Tento režim však může být problematický při používání NAT (Network Address Translation) nebo firewallu, kdy je bráněno otevření portu na klientovi a následnému připojení serveru.[2] 1.2.2 Pasivní režim Problém NATu, který je způsoben nemožností připojení na klienta, a firewallu je vyřešen přenosem v pasivním režimu, kdy si klient se serverem nevymění role, ty zůstanou zachovány.
    [Show full text]
  • Singularityce User Guide Release 3.8
    SingularityCE User Guide Release 3.8 SingularityCE Project Contributors Aug 16, 2021 CONTENTS 1 Getting Started & Background Information3 1.1 Introduction to SingularityCE......................................3 1.2 Quick Start................................................5 1.3 Security in SingularityCE........................................ 15 2 Building Containers 19 2.1 Build a Container............................................. 19 2.2 Definition Files.............................................. 24 2.3 Build Environment............................................ 35 2.4 Support for Docker and OCI....................................... 39 2.5 Fakeroot feature............................................. 79 3 Signing & Encryption 83 3.1 Signing and Verifying Containers.................................... 83 3.2 Key commands.............................................. 88 3.3 Encrypted Containers.......................................... 90 4 Sharing & Online Services 95 4.1 Remote Endpoints............................................ 95 4.2 Cloud Library.............................................. 103 5 Advanced Usage 109 5.1 Bind Paths and Mounts.......................................... 109 5.2 Persistent Overlays............................................ 115 5.3 Running Services............................................. 118 5.4 Environment and Metadata........................................ 129 5.5 OCI Runtime Support.......................................... 140 5.6 Plugins.................................................
    [Show full text]
  • Netcat − Network Connections Made Easy
    Netcat − network connections made easy A lot of the shell scripting I do involves piping the output of one command into another, such as: $ cat /var/log/messages | awk '{print $4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15}' | sed −e 's/\[[0−9]*\]:/:/' | sort | uniq | less which shows me the system log file after removing the timestamps and [12345] pids and removing duplicates (1000 neatly ordered unique lines is a lot easier to scan than 6000 mixed together). The above technique works well when all the processing can be done on one machine. What happens if I want to somehow send this data to another machine right in the pipe? For example, instead of viewing it with less on this machine, I want to somehow send the output to my laptop so I can view it there. Ideally, the command would look something like: $ cat /var/log/messages | awk '{print $4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15}' | sed −e 's/\[[0−9]*\]:/:/' | sort | uniq | laptop That exact syntax won't work because the shell thinks it needs to hand off the data to a program called laptop − which doesn't exist. There's a way to do it, though. Enter Netcat Netcat was written 5 years ago to perform exactly this kind of magic − allowing the user to make network connections between machines without any programming. Let's look at some examples of how it works. Let's say that I'm having trouble with a web server that's not returning the content I want for some reason.
    [Show full text]
  • PS TEXT EDIT Reference Manual Is Designed to Give You a Complete Is About Overview of TEDIT
    Information Management Technology Library PS TEXT EDIT™ Reference Manual Abstract This manual describes PS TEXT EDIT, a multi-screen block mode text editor. It provides a complete overview of the product and instructions for using each command. Part Number 058059 Tandem Computers Incorporated Document History Edition Part Number Product Version OS Version Date First Edition 82550 A00 TEDIT B20 GUARDIAN 90 B20 October 1985 (Preliminary) Second Edition 82550 B00 TEDIT B30 GUARDIAN 90 B30 April 1986 Update 1 82242 TEDIT C00 GUARDIAN 90 C00 November 1987 Third Edition 058059 TEDIT C00 GUARDIAN 90 C00 July 1991 Note The second edition of this manual was reformatted in July 1991; no changes were made to the manual’s content at that time. New editions incorporate any updates issued since the previous edition. Copyright All rights reserved. No part of this document may be reproduced in any form, including photocopying or translation to another language, without the prior written consent of Tandem Computers Incorporated. Copyright 1991 Tandem Computers Incorporated. Contents What This Book Is About xvii Who Should Use This Book xvii How to Use This Book xvii Where to Go for More Information xix What’s New in This Update xx Section 1 Introduction to TEDIT What Is PS TEXT EDIT? 1-1 TEDIT Features 1-1 TEDIT Commands 1-2 Using TEDIT Commands 1-3 Terminals and TEDIT 1-3 Starting TEDIT 1-4 Section 2 TEDIT Topics Overview 2-1 Understanding Syntax 2-2 Note About the Examples in This Book 2-3 BALANCED-EXPRESSION 2-5 CHARACTER 2-9 058059 Tandem Computers
    [Show full text]
  • Lab Work 06. Linux Shell. Files Globbing & Streams Redirection
    LAB WORK 06. LINUX SHELL. FILES GLOBBING & STREAMS REDIRECTION. 1. PURPOSE OF WORK • Learn to use shell file globbing (wildcard); • Learn basic concepts about standard UNIX/Linux streams redirections; • Acquire skills of working with filter-programs. • Get experience in creating composite commands that have a different functional purpose than the original commands. 2. TASKS FOR WORK NOTE. Start Your UbuntuMini Virtual Machine on your VirtualBox. You need only Linux Terminal to complete the lab tasks. Before completing the tasks, make a Snapshot of your Virtual Linux. If there are problems, you can easily go back to working condition! 2.0. Create new User account for this Lab Work. • Login as student account (user with sudo permissions). • Create new user account, example stud. Use adduser command. (NOTE. You can use the command “userdel –rf stud” to delete stud account from your Linux.) $ sudo adduser stud • Logout from student account (logout) and login as stud. 2.1. Shell File Globbing Study. 2.2. File Globbing Practice. (Fill in a Table 1 and Table 2) 2.3. Command I/O Redirection Study. 2.4. Redirection Practice. (Fill in a Table 3 and Table 4) © Yuriy Shamshin, 2021 1/20 3. REPORT Make a report about this work and send it to the teacher’s email (use a docx Report Blank). REPORT FOR LAB WORK 06: LINUX SHELL. FILES GLOBBING & STREAMS REDIRECTION Student Name Surname Student ID (nV) Date 3.1. Insert Completing Table 1. File globbing understanding. 3.2. Insert Completing Table 2. File globbing creation. 3.3. Insert Completing Table 3. Command I/O redirection understanding.
    [Show full text]
  • Servicios De Red E Internet
    SERVICIOS DE RED E INTERNET Autor: Miguel Ángel García Felipe IES GREGORIO PRIETO Servicios de Transferencia de Ficheros SERVICIOS DE RED E INTERNET SERVICIOS DE TRANSFERENCIA DE FICHEROS ÍNDICE 1. Funcionalidad del servicio de transferencia de archivos. - Características. Componentes y funcionamiento. - Protocolo FTP. - Tipos de usuarios y accesos al servicio: Acceso anónimo y acceso autorizado. - Configuración del servicio de transferencia de archivos. Permisos y cuotas. - Conexiones y modos: Conexión de control y conexión de datos. Modos activo y pasivo. - Tipos de transferencia de archivos: ASCII y Binario. - Clientes FTP: en línea de comandos, entornos “gráficos” y navegadores / exploradores. - Monitorización y registro del servicio de transferencia de archivos. - Seguridad en FTP. - FTPS (FTP/SSL): FTPS Implícito. FTPS Explícito (FTPES) - Protocolo FXP (File eXchange Protocol). 2. Servicio TFTP (Trivial File Transfer Protocol). 3. Servicios SFTP/SCP. 4. Transferencia o distribución de archivos entre iguales (peer-to-peer). - Características. Protocolos. Software. Configuración. 2 SERVICIOS DE RED E SERVICIOS DE TRANSFERENCIA DE FICHEROS INTERNET 1. Funcionalidad del servicio de transferencia de archivos. - Características. Componentes y funcionamiento. Es una utilidad que permite la copia de un archivo desde un ordenador a otro a través de una red de computadoras. El servicio más usado para realizar este movimiento es el FTP (File Transfer Protocol), el cual consiste en un programa FTP alojado en un servidor -llamado FTP daemon- el cual se encarga de gestionar las transacciones que solicita el cliente. Los movimientos que podemos realizar a la hora de transferir archivos de un equipo a otro son: "download" (bajada de archivos de Internet), "upload" (subida de archivos a Internet), o intercambio de objetos entre dos o más usuarios.
    [Show full text]