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Training Guide on Linux System Administration, LPI Level 1
Creating Business and Learning Opportunities with Free and Open Source Software in Africa ict@innovation: Training Guide on Linux System Administration LPI Certification Level 1 Supporting African IT-Enterprises to get Open Source Skills by Getting Certified on Level 1 of the Linux Professional Institute (LPI) Certification The map shows the number of active LPIC-1 Certifications in Africa as at September 2012 www.ict-innovation.fossfa.net Published by Version 1.1, November 2012 [ict@innovation: Training Guide on Linux System Administration – LPI Certification Level 1. Supporting African IT-Enterprises to get Open Source Skills and Certification on Level 1 of the Linux Professional Institute (LPI) Certification] Created during the initiative "ict@innovation – Creating Business and Learning Opportunities with Free and Open Source Software in Africa", a programme of FOSSFA and GIZ. For more information see www.ict-innovation.fossfa.net. Provided under a Creative Commons Attribution-Share Alike 3.0 Germany License. Copyright: FOSSFA & GIZ. 1 This page intentionally left BLANK [ict@innovation: Training Guide on Linux System Administration – LPI Certification Level 1. Supporting African IT-Enterprises to get Open Source Skills and Certification on Level 1 of the Linux Professional Institute (LPI) Certification] Created during the initiative "ict@innovation – Creating Business and Learning Opportunities with Free and Open Source Software in Africa", a programme of FOSSFA and GIZ. For more information see www.ict-innovation.fossfa.net. Provided -
Porting a Window Manager from Xlib to XCB
Porting a Window Manager from Xlib to XCB Arnaud Fontaine (08090091) 16 May 2008 Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version pub- lished by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". Contents List of figures i List of listings ii Introduction 1 1 Backgrounds and Motivations 2 2 X Window System (X11) 6 2.1 Introduction . .6 2.2 History . .6 2.3 X Window Protocol . .7 2.3.1 Introduction . .7 2.3.2 Protocol overview . .8 2.3.3 Identifiers of resources . 10 2.3.4 Atoms . 10 2.3.5 Windows . 12 2.3.6 Pixmaps . 14 2.3.7 Events . 14 2.3.8 Keyboard and pointer . 15 2.3.9 Extensions . 17 2.4 X protocol client libraries . 18 2.4.1 Xlib . 18 2.4.1.1 Introduction . 18 2.4.1.2 Data types and functions . 18 2.4.1.3 Pros . 19 2.4.1.4 Cons . 19 2.4.1.5 Example . 20 2.4.2 XCB . 20 2.4.2.1 Introduction . 20 2.4.2.2 Data types and functions . 21 2.4.2.3 xcb-util library . 22 2.4.2.4 Pros . 22 2.4.2.5 Cons . 23 2.4.2.6 Example . 23 2.4.3 Xlib/XCB round-trip performance comparison . -
Introduction to the Enlightenment Foundation Libraries
Introduction to the Enlightenment foundation libraries. An overview of EFL Kostis Kapelonis Introduction to the Enlightenment foundation libraries.: An overview of EFL Kostis Kapelonis Abstract The target audience of this document are UNIX programmers who are interested in the Enlightenment Foundation Libraries (EFL). You must already know C programming. You will not however learn how to program using the EFL. Instead, you will learn why you should program with the EFL. If you ever wanted to evaluate the EFL but did not see any advantages over previous graphic libraries then this document is for you! Table of Contents 1. Introduction ............................................................................................................................1 A little History ...................................................................................................................1 Related documentation ......................................................................................................... 2 Obtaining the EFL libraries ................................................................................................... 2 2. The EFL structure .................................................................................................................... 4 Organization of the Libraries ................................................................................................. 4 Brief description of each EFL library ...................................................................................... 5 3. -
BALG: Bypassing Application Layer Gateways Using Multi-Staged Encrypted Shellcodes
Sebastian Roschke, Feng Cheng, Christoph Meinel: "BALG: Bypassing Application Layer Gateways Using Multi-Staged Encrypted Shellcodes" in Proceedings of the 12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011), IEEE Press, Dublin, Ireland, pp. 399-406, 5, 2011. ISBN: 978-1-4244-9219-0. BALG: Bypassing Application Layer Gateways Using Multi-Staged Encrypted Shellcodes Sebastian Roschke Feng Cheng Christoph Meinel Hasso Plattner Institute (HPI) Hasso Plattner Institute (HPI) Hasso Plattner Institute (HPI) University of Potsdam University of Potsdam University of Potsdam 14482, Potsdam, Germany 14482, Potsdam, Germany 14482, Potsdam, Germany Email: [email protected] Email: [email protected] Email: [email protected] Abstract—Modern attacks are using sophisticated and inno- easily penetrated by simple tunneling. IDS needs to handle vative techniques. The utilization of cryptography, self-modified efficient evasion techniques. ALGs provide more restrictions code, and integrated attack frameworks provide more possibili- for network access by combining filtering on the application ties to circumvent most existing perimeter security approaches, such as firewalls and IDS. Even Application Layer Gateways layer and IDS techniques, such as deep packet inspection. (ALG) which enforce the most restrictive network access can be Most of ALG implementations provide filtering due to ap- exploited by using advanced attack techniques. In this paper, plication layer protocol compliance and even allow to block we propose a new attack for circumventing ALGs. By using certain commands within a specific protocol. Although ALGs polymorphic and encrypted shellcode, multiple shellcode stages, enforce a very restrictive access policy, it is still possible to protocol compliant and encrypted shell tunneling, and reverse channel discovery techniques, we are able to effectively bypass circumvent such devices by using modern attack techniques. -
Pysal Documentation Release 1.14.3
pysal Documentation Release 1.14.3 PySAL Developers Oct 04, 2019 Contents 1 User Guide 3 2 Developer Guide 73 3 Library Reference 97 Bibliography 109 i ii pysal Documentation, Release 1.14.3 Releases • Stable 1.14.3 (Released 2017-11-2) • Development PySAL is an open source library of spatial analysis functions written in Python intended to support the development of high level applications. PySAL is open source under the BSD License. Contents 1 pysal Documentation, Release 1.14.3 2 Contents CHAPTER 1 User Guide 1.1 Introduction Contents • Introduction – History – Scope – Research Papers and Presentations 1.1.1 History PySAL grew out of a collaborative effort between Luc Anselin’s group previously located at the University of Illinois, Champaign-Urbana, and Serge Rey who was at San Diego State University. It was born out of a recognition that the respective projects at the two institutions, PySpace (now GeoDaSpace) and STARS - Space Time Analysis of Regional Systems, could benefit from a shared analytical core, since this would limit code duplication and free up additional developer time to focus on enhancements of the respective applications. This recognition also came at a time when Python was starting to make major inroads in geographic information systems as represented by projects such as the Python Cartographic Library, Shapely and ESRI’s adoption of Python as a scripting language, among others. At the same time there was a dearth of Python modules for spatial statistics, spatial econometrics, location modeling and other areas of spatial analysis, and the role for PySAL was then expanded beyond its support of STARS and GeoDaSpace to provide a library of core spatial analytical functions that could support the next generation of spatial analysis applications. -
Fundamentals of Xlib Programming by Examples
Fundamentals of Xlib Programming by Examples by Ross Maloney Contents 1 Introduction 1 1.1 Critic of the available literature . 1 1.2 The Place of the X Protocol . 1 1.3 X Window Programming gotchas . 2 2 Getting started 4 2.1 Basic Xlib programming steps . 5 2.2 Creating a single window . 5 2.2.1 Open connection to the server . 6 2.2.2 Top-level window . 7 2.2.3 Exercises . 10 2.3 Smallest Xlib program to produce a window . 10 2.3.1 Exercises . 10 2.4 A simple but useful X Window program . 11 2.4.1 Exercises . 12 2.5 A moving window . 12 2.5.1 Exercises . 15 2.6 Parts of windows can disappear from view . 16 2.6.1 Testing overlay services available from an X server . 17 2.6.2 Consequences of no server overlay services . 17 2.6.3 Exercises . 23 2.7 Changing a window’s properties . 23 2.8 Content summary . 25 3 Windows and events produce menus 26 3.1 Colour . 26 3.1.1 Exercises . 27 i CONTENTS 3.2 A button to click . 29 3.3 Events . 33 3.3.1 Exercises . 37 3.4 Menus . 37 3.4.1 Text labelled menu buttons . 38 3.4.2 Exercises . 43 3.5 Some events of the mouse . 44 3.6 A mouse behaviour application . 55 3.6.1 Exercises . 58 3.7 Implementing hierarchical menus . 58 3.7.1 Exercises . 67 3.8 Content summary . 67 4 Pixmaps 68 4.1 The pixmap resource . -
VPN 3000 Series Concentrator Reference Volume II: Administration and Monitoring Release 3.6 August 2002
VPN 3000 Series Concentrator Reference Volume II: Administration and Monitoring Release 3.6 August 2002 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Customer Order Number: DOC-7814742= Text Part Number: 78-14742-01 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. -
Configuring SSH and Telnet
Configuring SSH and Telnet This chapter describes how to configure Secure Shell Protocol (SSH) and Telnet on Cisco NX-OS devices. This chapter includes the following sections: • About SSH and Telnet, on page 1 • Licensing Requirements for SSH and Telnet, on page 3 • Prerequisites for SSH and Telnet, on page 3 • Guidelines and Limitations for SSH and Telnet, on page 3 • Default Settings for SSH and Telnet, on page 4 • Configuring SSH , on page 4 • Configuring Telnet, on page 15 • Verifying the SSH and Telnet Configuration, on page 17 • Configuration Example for SSH, on page 18 • Configuration Example for SSH Passwordless File Copy, on page 19 • Additional References for SSH and Telnet, on page 21 About SSH and Telnet This section includes information about SSH and Telnet. SSH Server You can use the SSH server to enable an SSH client to make a secure, encrypted connection to a Cisco NX-OS device. SSH uses strong encryption for authentication. The SSH server in the Cisco NX-OS software can interoperate with publicly and commercially available SSH clients. The user authentication mechanisms supported for SSH are RADIUS, TACACS+, LDAP, and the use of locally stored usernames and passwords. SSH Client The SSH client feature is an application that runs over the SSH protocol to provide device authentication and encryption. The SSH client enables a Cisco NX-OS device to make a secure, encrypted connection to another Cisco NX-OS device or to any other device that runs the SSH server. This connection provides an outbound Configuring SSH and Telnet 1 Configuring SSH and Telnet SSH Server Keys connection that is encrypted. -
Secured Connectivity Why It Matters and How to Protect Your Organization
Secured Connectivity Why it Matters and How to Protect Your Organization While every attempt has been made to ensure the accuracy and completeness of the information in this document, some typographical or technical errors may exist. Hummingbird Connectivity – a division of Open Text cannot accept responsibility for customers’ losses resulting from the use of this document. The information contained in this document is subject to change without notice. This document contains proprietary information that is protected by copyright. This document, in whole or in part, may not be photocopied, reproduced, or translated into another language without prior written consent from Hummingbird Connectivity. This edition published September 2008 www.hummingbird.com 2 Contents The Security Challenge 4 Security in Organizations 5 Driving Security 6 Structural Factors 6 External Factors 6 Connectivity — A Definition 7 Security Risks in a Connectivity World 8 Weak Authentication 8 Easy Protocol Decoding 8 Data Authenticity and Integrity Tampering 8 Solutions for Secured Connectivity 9 SSL 9 Kerberos 10 Secure Shell 11 ® Connectivity SecureTerm 12 ™ Connectivity Secure Shell 14 Connectivity Secure Server 16 Secure Replacement for Telnet and FTP 16 High Performance and Scalability 16 Glossary of Terms 18 www.hummingbird.com 3 The Security Challenge Security is the hot topic today. Although, companies have been slow to recognize the importance of security things have changed during the last decade. Security is a top priority and there are no indications that this will end any time soon. The costs of security (or lack thereof) have now been clearly identified, and the picture does not look very good. -
NBAR2 Standard Protocol Pack 1.0
NBAR2 Standard Protocol Pack 1.0 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 © 2013 Cisco Systems, Inc. All rights reserved. CONTENTS CHAPTER 1 Release Notes for NBAR2 Standard Protocol Pack 1.0 1 CHAPTER 2 BGP 3 BITTORRENT 6 CITRIX 7 DHCP 8 DIRECTCONNECT 9 DNS 10 EDONKEY 11 EGP 12 EIGRP 13 EXCHANGE 14 FASTTRACK 15 FINGER 16 FTP 17 GNUTELLA 18 GOPHER 19 GRE 20 H323 21 HTTP 22 ICMP 23 IMAP 24 IPINIP 25 IPV6-ICMP 26 IRC 27 KAZAA2 28 KERBEROS 29 L2TP 30 NBAR2 Standard Protocol Pack 1.0 iii Contents LDAP 31 MGCP 32 NETBIOS 33 NETSHOW 34 NFS 35 NNTP 36 NOTES 37 NTP 38 OSPF 39 POP3 40 PPTP 41 PRINTER 42 RIP 43 RTCP 44 RTP 45 RTSP 46 SAP 47 SECURE-FTP 48 SECURE-HTTP 49 SECURE-IMAP 50 SECURE-IRC 51 SECURE-LDAP 52 SECURE-NNTP 53 SECURE-POP3 54 SECURE-TELNET 55 SIP 56 SKINNY 57 SKYPE 58 SMTP 59 SNMP 60 SOCKS 61 SQLNET 62 SQLSERVER 63 SSH 64 STREAMWORK 65 NBAR2 Standard Protocol Pack 1.0 iv Contents SUNRPC 66 SYSLOG 67 TELNET 68 TFTP 69 VDOLIVE 70 WINMX 71 NBAR2 Standard Protocol Pack 1.0 v Contents NBAR2 Standard Protocol Pack 1.0 vi CHAPTER 1 Release Notes for NBAR2 Standard Protocol Pack 1.0 NBAR2 Standard Protocol Pack Overview The Network Based Application Recognition (NBAR2) Standard Protocol Pack 1.0 is provided as the base protocol pack with an unlicensed Cisco image on a device. -
Opentext™ Connectivity Release Notes Version 15.0
OpenText™ Connectivity Release Notes Version 15.0 Product Released: 2015-03-18 Release Notes Revised: 2015-03-12 Contents Contents ................................................................................................................................................ 2 1 Introduction .................................................................................................................................... 5 1.1 Release Notes Revision History ................................................................................................ 5 2 About OpenText Connectivity ....................................................................................................... 6 3 What is new in this release ........................................................................................................... 7 3.1 Products included in this release ............................................................................................... 7 3.2 Update to Connectivity EULA .................................................................................................... 8 3.3 Citrix Certification ...................................................................................................................... 8 3.4 Windows® 7 Certification .......................................................................................................... 8 3.5 Windows® 8 Certification .......................................................................................................... 8 3.6 Migration Wizard for Exceed -
Fdc3302e Frequency Distribution Chassis
"Smarter Timing Solutions" FDC3302e Frequency Distribution Chassis User Manual USM3302-0800-000 Revision 2 March 2019 FDC3302e Frequency Distribution Chassis User Manual Preface Thank you for purchasing the Frequency Distribution Chassis. Our goal in developing this product is to bring you a distribution chassis that will quickly, easily and reliably meet or exceed your system requirements. Your new FDC3302e is fabricated using the highest quality materials and manufactur- ing processes available today, and will give you years of trouble-free service. About EndRun Technologies EndRun Technologies is dedicated to the development and refinement of the technologies required to fulfill the demanding needs of the time and frequency community. The instruments produced by EndRun Technologies have been selected as the timing reference for a variety of industries and applications - computer networks, satellite earth stations, power utilities, test ranges, broadcast and telecommunications systems and more. EndRun Technologies is committed to fulfilling your precision timing needs by providing the most advanced, reliable and cost-effective time and frequency equipment available in the market today. Trademark Acknowledgements IBM-PC, UNIX, Windows NT are registered trademarks of the respective holders. Part No. USM3302-0800-000 Revision 2 March 2019 Copyright © EndRun Technologies 2007-2019 FDC3302e User Manual About This Manual This manual will guide you through simple installation and set up procedures. Introduction – The Frequency Distribution Chassis, how it works, where to use it, its main features. Basic Installation – How to connect, configure and test your distribution chassis. Console Port – Description of the console commands for use over the serial port or optional network port.