New York University Computer Science Department Courant Institute of Mathematical Sciences
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Cisco Telepresence Codec SX20 API Reference Guide
Cisco TelePresence SX20 Codec API Reference Guide Software version TC6.1 April 2013 Application Programmer Interface (API) Reference Guide Cisco TelePresence SX20 Codec D14949.03 SX20 Codec API Reference Guide TC6.1, April 2013. 1 Copyright © 2013 Cisco Systems, Inc. All rights reserved. Cisco TelePresence SX20 Codec API Reference Guide What’s in this guide? Table of Contents Introduction Using HTTP ....................................................................... 20 Getting status and configurations ................................. 20 TA - ToC - Hidden About this guide .................................................................. 4 The top menu bar and the entries in the Table of Sending commands and configurations ........................ 20 text anchor User documentation ........................................................ 4 Contents are all hyperlinks, just click on them to Using HTTP POST ......................................................... 20 go to the topic. About the API Feedback from codec over HTTP ......................................21 Registering for feedback ................................................21 API fundamentals ................................................................ 9 Translating from terminal mode to XML ......................... 22 We recommend you visit our web site regularly for Connecting to the API ..................................................... 9 updated versions of the user documentation. Go to: Password ........................................................................ -
Resolving Issues with Network Connectivity
Module 6: Resolving Issues with Network Connectivity Lab: Resolving Network Connectivity Issues (VMs: 10982D-LON-DC1, 10982D-LON-CL1) Exercise 1: Configuring Network Settings Task 1: Verify and configure network settings 1. Switch to LON-CL1. 2. Right-click Start, and then select Windows PowerShell (Admin). 3. At the Windows PowerShell (Admin) command prompt, type the following command, and then press Enter: test-connection LON-DC1 4. At the command prompt, type the following command, and then press Enter: netstat –n 5. If no connections appear, create a connection. To create a connection, in the Type here to search box, type \\LON-DC1 and then press Enter. 6. In File Explorer, double-click NETLOGON. 7. At the command prompt, type the following command, and then press Enter: netstat –n Note: If no connections are present, move on to the next step. 8. Click Start, type Control Panel and then press Enter. 9. In Control Panel, click Network and Internet, and then click Network and Sharing Center. 10. In Network and Sharing Center, click Ethernet. 11. In the Ethernet Status dialog box, click Properties. 12. Click Internet Protocol Version 4 (TCP/IPv4), and then click Properties. 13. In the Properties dialog box, click Obtain an IP address automatically. 14. Click Obtain DNS server address automatically. 15. Click OK to save the changes. 16. In the Ethernet Properties dialog box, click Close. 17. In the Ethernet Status dialog box, click Close. 18. At the Windows PowerShell command prompt, type the following command, and then press Enter: Get-NetIPAddress Task 2: Troubleshoot name resolution 1. -
RED HAT ENTERPRISE LINUX 5, 6, and 7 Common Administrative
RED HAT ENTERPRISE LINUX 5, 6, AND 7 SOFTWARE MANAGEMENT NETWORKING Common administrative commands TASK RHEL TASK RHEL yum install iptables and ip6tables 5 6 5 yum groupinstall /etc/sysconfig/ip*tables Install software iptables and ip6tables 1 Be aware of potential issues when using subscription-manager yum install 7 Configure firewall /etc/sysconfig/ip*tables 6 SYSTEM BASICS on Red Hat Enterprise Linux 5: https://access.redhat.com/ yum group install system-config-firewall solutions/129003. TASK RHEL yum info firewall-cmd 2 Subscription-manager is used for Satellite 6, Satellite 5.6 with 5 6 7 SAM and newer, and Red Hat’s CDN. yum groupinfo firewall-config /etc/sysconfig/rhn/systemid 5 3 RHN tools are deprecated on Red Hat Enterprise Linux 7. View software info /etc/hosts yum info 5 6 rhn_register should be used for Satellite server 5.6 and newer 7 /etc/resolv.conf /etc/sysconfig/rhn/systemid yum group info View subscription information 6 only. For details, see: Satellite 5.6 unable to register RHEL 7 Configure name subscription-manager identity client system due to rhn-setup package not included in Minimal resolution /etc/hosts installation (https://access.redhat.com/solutions/737373) Update software yum update 5 6 7 /etc/resolv.conf 7 subscription-manager identity 7 nmcli con mod rhn_register 5 Upgrade software yum upgrade 5 6 7 /etc/sysconfig/network 5 6 subscription-manager 1 Configure hostname hostnamectl rhn_register Configure software subscription-manager repos 5 6 7 /etc/hostname 7 rhnreg_ks 6 /etc/yum.repos.d/*.repo Configure -
Don't Trust Traceroute (Completely)
Don’t Trust Traceroute (Completely) Pietro Marchetta, Valerio Persico, Ethan Katz-Bassett Antonio Pescapé University of Southern California, CA, USA University of Napoli Federico II, Italy [email protected] {pietro.marchetta,valerio.persico,pescape}@unina.it ABSTRACT In this work, we propose a methodology based on the alias resolu- tion process to demonstrate that the IP level view of the route pro- vided by traceroute may be a poor representation of the real router- level route followed by the traffic. More precisely, we show how the traceroute output can lead one to (i) inaccurately reconstruct the route by overestimating the load balancers along the paths toward the destination and (ii) erroneously infer routing changes. Categories and Subject Descriptors C.2.1 [Computer-communication networks]: Network Architec- ture and Design—Network topology (a) Traceroute reports two addresses at the 8-th hop. The common interpretation is that the 7-th hop is splitting the traffic along two Keywords different forwarding paths (case 1); another explanation is that the 8- th hop is an RFC compliant router using multiple interfaces to reply Internet topology; Traceroute; IP alias resolution; IP to Router to the source (case 2). mapping 1 1. INTRODUCTION 0.8 Operators and researchers rely on traceroute to measure routes and they assume that, if traceroute returns different IPs at a given 0.6 hop, it indicates different paths. However, this is not always the case. Although state-of-the-art implementations of traceroute al- 0.4 low to trace all the paths -
Dig, a DNS Query Tool for Windows and Replacement for Nslookup 2008-04-15 15:29
dig, a DNS query tool for Windows and replacement for nslookup 2008-04-15 15:29 Disclaimer dig (dig for Windows ) (dig is a powerful tool to investigate [digging into] the DNS system) Source of the binary is from ftp.isc.org Manual Page of dig, in the cryptic Unix style, for reference only. (1) Download: Windows 2000 or Windows XP or Windows Vista ( dig version 9.3.2) Create a folder c:\dig Download this dig-files.zip and save it to c:\dig Use winzip or equivalent to extract the files in dig-files.zip to c:\dig Note: If msvcr70.dll already exists in %systemroot%\system32\ , then you can delete c:\dig\msvcr70.dll Note: Included in dig-files.zip is a command line whois, version 4.7.11: The canonical site of the whois source code is http://ftp.debian.org/debian/pool/main/w/whois/ The whois.exe file inside dig-files.zip is compiled using cygwin c++ compiler. (2) Do a file integrity check (why ? Because some virus checkers destroy dll files) Click Start.. Run ... type CMD (a black screen pops up) cd c:\dig sha1 * You should see some SHA1 hashes (in here, SHA1 hash is used as an integrity check, similar to checksums). Compare your hashes with the following table. SHA1 v1.0 [GPLed] by Stephan T. Lavavej, http://stl.caltech.edu 6CA70A2B 11026203 EABD7D65 4ADEFE3D 6C933EDA cygwin1.dll 57487BAE AA0EB284 8557B7CA 54ED9183 EAFC73FA dig.exe 97DBD755 D67A5829 C138A470 8BE7A4F2 6ED0894C host.exe D22E4B89 56E1831F F0F9D076 20EC19BF 171F0C29 libbind9.dll 81588F0B E7D3C6B3 20EDC314 532D9F2D 0A105594 libdns.dll E0BD7187 BBC01003 ABFE7472 E64B68CD 1BDB6BAB libeay32.dll F445362E 728A9027 96EC6871 A79C6307 054974E4 libisc.dll B3255C0E 4808A703 F95C217A 91FFCD69 40E680C9 libisccfg.dll DFBDE4F9 E25FD49A 0846E97F D813D687 6DC94067 liblwres.dll 61B8F573 DB448AE6 351AE347 5C2E7C48 2D81533C msvcr70.dll BDA14B28 7987E168 F359F0C9 DD96866D 04AB189B resolv.conf 1112343A 319C3EEE E44BF261 AE196C96 289C70E2 sha1.exe 21D20035 2A5B64E2 69FEA407 4D78053F 3C7A2738 whois.exe If your hashes are the same as the above table, then your files pass the integrity check. -
Oracle® Solaris 11.4 Network Administration Cheatsheet
Oracle Solaris 11.4 Network Administration Cheatsheet This cheatsheet includes examples of commonly used network administration commands. See the dladm(8), ipadm(8), and route(8) man pages for further details. For more information about configuring the network in Oracle Solaris 11.4, see Configuring and Managing Network Components in Oracle Solaris 11.4. Commonly Used Network Administration Commands Note - Some of following commands include parameters and values that are provided as examples only. Action Command Administering Datalinks Display all of the datalinks (physical and virtual) on a system. # dladm show-link Display all of the physical datalinks on a system. # dladm show-phys Display all of the properties for all of the datalinks on a system. # dladm show-linkprop Display all of the properties for a specific datalink on a system. # dladm show-linkprop net0 Display a specific property for a specific datalink on a system. # dladm show-linkprop -p mtu net0 Administering IP Interfaces and Addresses Display general information about a system's IP interfaces. # ipadm Display a system's IP interfaces and addresses. # ipadm show-addr Create an IP interface and then configure a static IPv4 address for that interface. # ipadm create-ip net0 # ipadm create-addr -a 203.0.113.0/24 net0/addr Obtain an IP address from a DHCP server. # ipadm create-ip net0 # ipadm create-addr -T dhcp net0/addr Create an auto-generated IPv6 address. # ipadm create-ip net0 # ipadm create-addr -T addrconf net0/addr Change the netmask property for an IP address object name (net3/v4) to 8. # ipadm set-addrprop -p prefixlen=8 net3/v4 Configure a persistent default route on a system. -
The Linux Command Line
The Linux Command Line Fifth Internet Edition William Shotts A LinuxCommand.org Book Copyright ©2008-2019, William E. Shotts, Jr. This work is licensed under the Creative Commons Attribution-Noncommercial-No De- rivative Works 3.0 United States License. To view a copy of this license, visit the link above or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042. A version of this book is also available in printed form, published by No Starch Press. Copies may be purchased wherever fine books are sold. No Starch Press also offers elec- tronic formats for popular e-readers. They can be reached at: https://www.nostarch.com. Linux® is the registered trademark of Linus Torvalds. All other trademarks belong to their respective owners. This book is part of the LinuxCommand.org project, a site for Linux education and advo- cacy devoted to helping users of legacy operating systems migrate into the future. You may contact the LinuxCommand.org project at http://linuxcommand.org. Release History Version Date Description 19.01A January 28, 2019 Fifth Internet Edition (Corrected TOC) 19.01 January 17, 2019 Fifth Internet Edition. 17.10 October 19, 2017 Fourth Internet Edition. 16.07 July 28, 2016 Third Internet Edition. 13.07 July 6, 2013 Second Internet Edition. 09.12 December 14, 2009 First Internet Edition. Table of Contents Introduction....................................................................................................xvi Why Use the Command Line?......................................................................................xvi -
Blue Coat SGOS Command Line Interface Reference, Version 4.2.3
Blue Coat® Systems ProxySG™ Command Line Interface Reference Version SGOS 4.2.3 Blue Coat ProxySG Command Line Interface Reference Contact Information Blue Coat Systems Inc. 420 North Mary Ave Sunnyvale, CA 94085-4121 http://www.bluecoat.com/support/contact.html [email protected] http://www.bluecoat.com For concerns or feedback about the documentation: [email protected] Copyright© 1999-2006 Blue Coat Systems, Inc. All rights reserved worldwide. No part of this document may be reproduced by any means nor modified, decompiled, disassembled, published or distributed, in whole or in part, or translated to any electronic medium or other means without the written consent of Blue Coat Systems, Inc. All right, title and interest in and to the Software and documentation are and shall remain the exclusive property of Blue Coat Systems, Inc. and its licensors. ProxySG™, ProxyAV™, CacheOS™, SGOS™, Spyware Interceptor™, Scope™, RA Connector™, RA Manager™, Remote Access™ are trademarks of Blue Coat Systems, Inc. and CacheFlow®, Blue Coat®, Accelerating The Internet®, WinProxy®, AccessNow®, Ositis®, Powering Internet Management®, The Ultimate Internet Sharing Solution®, Permeo®, Permeo Technologies, Inc.®, and the Permeo logo are registered trademarks of Blue Coat Systems, Inc. All other trademarks contained in this document and in the Software are the property of their respective owners. BLUE COAT SYSTEMS, INC. DISCLAIMS ALL WARRANTIES, CONDITIONS OR OTHER TERMS, EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE, ON SOFTWARE AND DOCUMENTATION FURNISHED HEREUNDER INCLUDING WITHOUT LIMITATION THE WARRANTIES OF DESIGN, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL BLUE COAT SYSTEMS, INC., ITS SUPPLIERS OR ITS LICENSORS BE LIABLE FOR ANY DAMAGES, WHETHER ARISING IN TORT, CONTRACT OR ANY OTHER LEGAL THEORY EVEN IF BLUE COAT SYSTEMS, INC. -
NETSTAT Command
NETSTAT Command | NETSTAT Command | Use the NETSTAT command to display network status of the local host. | | ┌┐────────────── | 55──NETSTAT─────6─┤ Option ├─┴──┬────────────────────────────────── ┬ ─ ─ ─ ────────────────────────────────────────5% | │┌┐───────────────────── │ | └─(──SELect───6─┤ Select_String ├─┴ ─ ┘ | Option: | ┌┐─COnn────── (1, 2) ──────────────── | ├──┼─────────────────────────── ┼ ─ ──────────────────────────────────────────────────────────────────────────────┤ | ├─ALL───(2)──────────────────── ┤ | ├─ALLConn─────(1, 2) ────────────── ┤ | ├─ARp ipaddress───────────── ┤ | ├─CLients─────────────────── ┤ | ├─DEvlinks────────────────── ┤ | ├─Gate───(3)─────────────────── ┤ | ├─┬─Help─ ┬─ ───────────────── ┤ | │└┘─?──── │ | ├─HOme────────────────────── ┤ | │┌┐─2ð────── │ | ├─Interval─────(1, 2) ─┼───────── ┼─ ┤ | │└┘─seconds─ │ | ├─LEVel───────────────────── ┤ | ├─POOLsize────────────────── ┤ | ├─SOCKets─────────────────── ┤ | ├─TCp serverid───(1) ─────────── ┤ | ├─TELnet───(4)───────────────── ┤ | ├─Up──────────────────────── ┤ | └┘─┤ Command ├───(5)──────────── | Command: | ├──┬─CP cp_command───(6) ─ ┬ ────────────────────────────────────────────────────────────────────────────────────────┤ | ├─DELarp ipaddress─ ┤ | ├─DRop conn_num──── ┤ | └─RESETPool──────── ┘ | Select_String: | ├─ ─┬─ipaddress────(3) ┬ ─ ───────────────────────────────────────────────────────────────────────────────────────────┤ | ├─ldev_num─────(4) ┤ | └─userid────(2) ─── ┘ | Notes: | 1 Only ALLCON, CONN and TCP are valid with INTERVAL. | 2 The userid -
LAB MANUAL for Computer Network
LAB MANUAL for Computer Network CSE-310 F Computer Network Lab L T P - - 3 Class Work : 25 Marks Exam : 25 MARKS Total : 50 Marks This course provides students with hands on training regarding the design, troubleshooting, modeling and evaluation of computer networks. In this course, students are going to experiment in a real test-bed networking environment, and learn about network design and troubleshooting topics and tools such as: network addressing, Address Resolution Protocol (ARP), basic troubleshooting tools (e.g. ping, ICMP), IP routing (e,g, RIP), route discovery (e.g. traceroute), TCP and UDP, IP fragmentation and many others. Student will also be introduced to the network modeling and simulation, and they will have the opportunity to build some simple networking models using the tool and perform simulations that will help them evaluate their design approaches and expected network performance. S.No Experiment 1 Study of different types of Network cables and Practically implement the cross-wired cable and straight through cable using clamping tool. 2 Study of Network Devices in Detail. 3 Study of network IP. 4 Connect the computers in Local Area Network. 5 Study of basic network command and Network configuration commands. 6 Configure a Network topology using packet tracer software. 7 Configure a Network topology using packet tracer software. 8 Configure a Network using Distance Vector Routing protocol. 9 Configure Network using Link State Vector Routing protocol. Hardware and Software Requirement Hardware Requirement RJ-45 connector, Climping Tool, Twisted pair Cable Software Requirement Command Prompt And Packet Tracer. EXPERIMENT-1 Aim: Study of different types of Network cables and Practically implement the cross-wired cable and straight through cable using clamping tool. -
1. Run Nslookup to Obtain the IP Address of a Web Server in Europe
1. Run nslookup to obtain the IP address of a Web server in Europe. frigate:Desktop drb$ nslookup home.web.cern.ch Server: 130.215.32.18 Address: 130.215.32.18#53 Non-authoritative answer: home.web.cern.ch canonical name = drupalprod.cern.ch. Name: drupalprod.cern.ch Address: 137.138.76.28 Note that the #53 denotes the DNS service is running on port 53. 2. Run nslookup to determine the authoritative DNS servers for a university in Asia. frigate:Desktop drb$ nslookup -type=NS tsinghua.edu.cn Server: 130.215.32.18 Address: 130.215.32.18#53 Non-authoritative answer: tsinghua.edu.cn nameserver = dns2.tsinghua.edu.cn. tsinghua.edu.cn nameserver = dns.tsinghua.edu.cn. tsinghua.edu.cn nameserver = dns2.edu.cn. tsinghua.edu.cn nameserver = ns2.cuhk.edu.hk. Authoritative answers can be found from: dns2.tsinghua.edu.cn internet address = 166.111.8.31 ns2.cuhk.edu.hk internet address = 137.189.6.21 ns2.cuhk.edu.hk has AAAA address 2405:3000:3:6::15 dns2.edu.cn internet address = 202.112.0.13 dns.tsinghua.edu.cn internet address = 166.111.8.30 Note that there can be multiple authoritative servers. The response we got back was from a cached record. To confirm the authoritative DNS servers, we perform the same DNS query of one of the servers that can provide authoritative answers. frigate:Desktop drb$ nslookup -type=NS tsinghua.edu.cn dns.tsinghua.edu.cn Server: dns.tsinghua.edu.cn Address: 166.111.8.30#53 tsinghua.edu.cn nameserver = dns2.edu.cn. -
VNC User Guide 7 About This Guide
VNC® User Guide Version 5.3 December 2015 Trademarks RealVNC, VNC and RFB are trademarks of RealVNC Limited and are protected by trademark registrations and/or pending trademark applications in the European Union, United States of America and other jursidictions. Other trademarks are the property of their respective owners. Protected by UK patent 2481870; US patent 8760366 Copyright Copyright © RealVNC Limited, 2002-2015. All rights reserved. No part of this documentation may be reproduced in any form or by any means or be used to make any derivative work (including translation, transformation or adaptation) without explicit written consent of RealVNC. Confidentiality All information contained in this document is provided in commercial confidence for the sole purpose of use by an authorized user in conjunction with RealVNC products. The pages of this document shall not be copied, published, or disclosed wholly or in part to any party without RealVNC’s prior permission in writing, and shall be held in safe custody. These obligations shall not apply to information which is published or becomes known legitimately from some source other than RealVNC. Contact RealVNC Limited Betjeman House 104 Hills Road Cambridge CB2 1LQ United Kingdom www.realvnc.com Contents About This Guide 7 Chapter 1: Introduction 9 Principles of VNC remote control 10 Getting two computers ready to use 11 Connectivity and feature matrix 13 What to read next 17 Chapter 2: Getting Connected 19 Step 1: Ensure VNC Server is running on the host computer 20 Step 2: Start VNC