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Tomato Topology Management Tool
ToMaTo Topology Management Tool Dennis Schwerdel University of Kaiserslautern, Germany Department of Computer Science Integrated Communication Systems ICSY http://www.icsy.de Introduction ToMaTo is a topology-oriented control framework for virtual networking experiments. Control framework Topology-oriented Like Planet-Lab, Emulab, ... Basic abstraction: Network Developed in the German-Lab topology project Each experiment has its own Open-Source project (hosted on topology Github) Topologies contain connected elements Virtual networking experiments Developed for networking Advanced features experiments Direct console access E.g. networking research or Link emulation software testing Packet capturing All parts of the experiment setup are virtual Dennis Schwerdel, University of Kaiserslautern, Germany 2 Topology Graphical representation Icons show element type Colored icons show virtualization technology Link color shows network segments Link style shows link attributes Example One central server 4 clients, connected with 2 switches Internet connected to server Per Topology Accounting Permissions Dennis Schwerdel, University of Kaiserslautern, Germany 3 VM Elements KVM Full virtualization Integrated into Linux Kernel OpenVZ Container virtualization Added to Linux Kernel via patch Scripts Programming language virtualization Installed as software Additional elements Easy to add more Planned: VirtualBox, LXC Dennis Schwerdel, University of Kaiserslautern, Germany 4 Repy scripts Repy Restricted Python (Sandbox) Technology from Seattle testbed Modified for ToMaTo Functions for receiving and sending raw ethernet packages packet = tuntap_read("eth0", timeout=None) ethernet = ethernet_decode(packet) echo("%s -> %s: %d bytes\n" % (ethernet.src, ethernet.dst, len(packet)) tuntap_send("eth1", packet) Library Basic protocols implemented: Ethernet, IPv4, TCP, UDP and ICMP Even some higher protocols: DHCP and DNS Examples for: NAT router, DHCP server, DNS server, Switch, .. -
Proceedings of the Bsdcon 2002 Conference
USENIX Association Proceedings of the BSDCon 2002 Conference San Francisco, California, USA February 11-14, 2002 THE ADVANCED COMPUTING SYSTEMS ASSOCIATION © 2002 by The USENIX Association All Rights Reserved For more information about the USENIX Association: Phone: 1 510 528 8649 FAX: 1 510 548 5738 Email: [email protected] WWW: http://www.usenix.org Rights to individual papers remain with the author or the author's employer. Permission is granted for noncommercial reproduction of the work for educational or research purposes. This copyright notice must be included in the reproduced paper. USENIX acknowledges all trademarks herein. Flexible Packet Filtering: Providing a Rich Toolbox Kurt J. Lidl Deborah G. Lidl Paul R. Borman Zero Millimeter LLC Wind River Systems Wind River Systems Potomac, MD Potomac, MD Mendota Heights, MN [email protected] [email protected] [email protected] Abstract The BSD/OS IPFW packet filtering system is a well engineered, flexible kernel framework for filtering (accepting, rejecting, logging, or modifying) IP packets. IPFW uses the well understood, widely available Berkeley Packet Filter (BPF) system as the basis of its packet matching abilities, and extends BPF in several straightforward areas. Since the first implementation of IPFW, the system has been enhanced several times to support additional functions, such as rate filtering, network address translation (NAT), and traffic flow monitoring. This paper examines the motivation behind IPFW and the design of the system. Comparisons with some contemporary packet filtering systems are provided. Potential future enhancements for the IPFW system are discussed. 1 Packet Filtering: An Overview might choose to copy only this data. -
1 A) Login to the System B) Use the Appropriate Command to Determine Your Login Shell C) Use the /Etc/Passwd File to Verify the Result of Step B
CSE ([email protected] II-Sem) EXP-3 1 a) Login to the system b) Use the appropriate command to determine your login shell c) Use the /etc/passwd file to verify the result of step b. d) Use the ‘who’ command and redirect the result to a file called myfile1. Use the more command to see the contents of myfile1. e) Use the date and who commands in sequence (in one line) such that the output of date will display on the screen and the output of who will be redirected to a file called myfile2. Use the more command to check the contents of myfile2. 2 a) Write a “sed” command that deletes the first character in each line in a file. b) Write a “sed” command that deletes the character before the last character in each line in a file. c) Write a “sed” command that swaps the first and second words in each line in a file. a. Log into the system When we return on the system one screen will appear. In this we have to type 100.0.0.9 then we enter into editor. It asks our details such as Login : krishnasai password: Then we get log into the commands. bphanikrishna.wordpress.com FOSS-LAB Page 1 of 10 CSE ([email protected] II-Sem) EXP-3 b. use the appropriate command to determine your login shell Syntax: $ echo $SHELL Output: $ echo $SHELL /bin/bash Description:- What is "the shell"? Shell is a program that takes your commands from the keyboard and gives them to the operating system to perform. -
Disk Clone Industrial
Disk Clone Industrial USER MANUAL Ver. 1.0.0 Updated: 9 June 2020 | Contents | ii Contents Legal Statement............................................................................... 4 Introduction......................................................................................4 Cloning Data.................................................................................................................................... 4 Erasing Confidential Data..................................................................................................................5 Disk Clone Overview.......................................................................6 System Requirements....................................................................................................................... 7 Software Licensing........................................................................................................................... 7 Software Updates............................................................................................................................. 8 Getting Started.................................................................................9 Disk Clone Installation and Distribution.......................................................................................... 12 Launching and initial Configuration..................................................................................................12 Navigating Disk Clone.....................................................................................................................14 -
Unix/Linux Command Reference
Unix/Linux Command Reference .com File Commands System Info ls – directory listing date – show the current date and time ls -al – formatted listing with hidden files cal – show this month's calendar cd dir - change directory to dir uptime – show current uptime cd – change to home w – display who is online pwd – show current directory whoami – who you are logged in as mkdir dir – create a directory dir finger user – display information about user rm file – delete file uname -a – show kernel information rm -r dir – delete directory dir cat /proc/cpuinfo – cpu information rm -f file – force remove file cat /proc/meminfo – memory information rm -rf dir – force remove directory dir * man command – show the manual for command cp file1 file2 – copy file1 to file2 df – show disk usage cp -r dir1 dir2 – copy dir1 to dir2; create dir2 if it du – show directory space usage doesn't exist free – show memory and swap usage mv file1 file2 – rename or move file1 to file2 whereis app – show possible locations of app if file2 is an existing directory, moves file1 into which app – show which app will be run by default directory file2 ln -s file link – create symbolic link link to file Compression touch file – create or update file tar cf file.tar files – create a tar named cat > file – places standard input into file file.tar containing files more file – output the contents of file tar xf file.tar – extract the files from file.tar head file – output the first 10 lines of file tar czf file.tar.gz files – create a tar with tail file – output the last 10 lines -
Covid-19 and the Rights of Persons with Disabilities: Guidance
HUMAN RIGHTS AT THE HEART OF RESPONSE TOPICS IN FOCUS COVID-19 AND THE RIGHTS OF PERSONS WITH DISABILITIES 29 April 2020 COVID-19 AND THE RIGHTS OF PERSONS WITH DISABILITIES: GUIDANCE 1. What is the impact of COVID-19 on the right to health of persons with disabilities? 2. What is the impact of COVID-19 on persons with disabilities who are living in institutions? 3. What is the impact of COVID-19 on the right of persons with disabilities to live in the community? 4. What is the impact of COVID-19 on work, income and livelihood of persons with disabilities? 5. What is the impact of COVID-19 on the right to education of persons with disabilities? 6. What is the impact of COVID-19 on the right of persons with disabilities to protection from violence? 7. What is the impact of COVID-19 on specific population groups in which persons with disabilities are overrepresented? a. prisoners with disabilities b. persons with disabilities without adequate housing OVERVIEW While the COVID-19 pandemic threatens all members of society, persons with disabilities are disproportionately impacted due to attitudinal, environmental and institutional barriers that are reproduced in the COVID-19 response. Many persons with disabilities have pre-existing health conditions that make them more susceptible to contracting the virus, experiencing more severe symptoms upon infection, leading to elevated levels of death. During the COVID-19 crisis, persons with disabilities who are dependent on support for their daily living may find themselves isolated and unable to survive during lockdown measures, while those living in institutions are particularly vulnerable, as evidenced by the overwhelming numbers of deaths in residential care homes and psychiatric facilities. -
Firewall and Proxy Server HOWTO Firewall and Proxy Server HOWTO
Firewall and Proxy Server HOWTO Firewall and Proxy Server HOWTO Table of Contents Firewall and Proxy Server HOWTO................................................................................................................1 Mark Grennan, mark@grennan.com.......................................................................................................1 1. Introduction..........................................................................................................................................1 2. Understanding Firewalls......................................................................................................................1 3. Firewall Architecture ..........................................................................................................................1 4. Setting up the Linux Filtering Firewall ...............................................................................................1 5. Software requirements.........................................................................................................................1 6. Preparing the Linux system.................................................................................................................1 7. IP filtering setup (IPFWADM)............................................................................................................2 8. IP filtering setup (IPCHAINS).............................................................................................................2 9. Installing a Transparent SQUID -
Internet of Things
8.5 GB Motorola Xiaomi Mi Lenovo A lightweight and Dual Layer DVD Moto Turbo A Powerful Processor Low on cost but high Yoga 3 Pro Free on performance premium quality Free Smartphone With a Brilliant Screen Pad Tablet Hybrid Laptop convertible `150 Remote Desktop Sharing with Chrome Recover Data from www.pcquest.com Encryped Hard Disk UNDERSTAND • CHOOSE • IMPLEMENT IT MAY 2015 with Ubuntu Internet of Things: The Road Ahead Key industries that are bullish on IoT and why, ISVs that live on IoT, 5 innovative IoT startups, latest trends on IoT adoption by businesses, and more... CONTEST: If your disks are missing, please ask your newsagent or email: [email protected] please ask your newsagent or email: If your disks are missing, WIN Ashampoo Snap 8 screen capturing tool and licensed copy of KEYWIN worth `44,000. See pg 58 for details Hot Trends: Developer Corner: The Pros and Cons of Net Neutrality How to Reduce Vulnerabilities in Android Apps How Online-only Mobile Brands are Shootouts Redefining Retail 12 Portable Bluetooth Speakers 5 Big Data Costs You Can’t Afford to Ignore 10 Budget Smartphones under `10,000 Subscribe to PCQuest and get antivirus worth `1,800 free. For details, go to pg. 74 92 pages including cover Contents 36 COVER STORY Internet of Things: The Road Ahead Moving beyond the initial euphoria, IoT has steadily progressed to impact our lives in several meaningful ways. Going forward we expect both businesses and individuals to make steady returns on their investments 38 5 Key Industries that are Bullish on IoT 42 -
L3pdffield-Choice Module Commands to Create Choice Fields LATEX PDF Management Testphase Bundle
The l3pdffield-choice module Commands to create choice fields LATEX PDF management testphase bundle The LATEX Project∗ Version 0.95i, released 2021-08-28 1 l3pdffield-choice Introduction This is the documentation for choice fields, for general information about form fields check the documentation l3pdffield. Please keep in mind • Not every PDF viewer supports choice field. • The handling can depend on settings in the PDF viewer. In adobe reader for example I had to disable an option to avoid that it tries to create an appearance itself • Standards like pdf/A disable features of form fields too (as you typically can’t change the PDF). 2 Choice fields Choice fields are drop down menus or scrollable lists where the user can selectoneor more entries. They can also contain a field where users can insert a free text. The export value and the displayed value can differ. Some values can be preselected. This means that various data will have to be set, and the sorting matters. The module here will assume that the various values are stored in sequences: checkifexportoraltname... Only the first sequence is required. Empty values in the display sequence are possible, then the normal value is used. 2.1 Types Choice fields can be a drop down menu (called Combo), which can contain an editable field. setfieldflags={Combo,Edit} or setfieldflags={Combo} If Edit is set, one can also set DoNotSpellCheck. Or they can be a list. ∗E-mail: [email protected] 1 unsetfieldflags={Combo,Edit,DoNotSpellCheck} For both types it is possible to set or unset MultiSelect and CommitOnSelChange. -
Ipfire Duobox Business, 4 GB RAM, 64 GB SSD
Item no.: 323825 IPFire DuoBox Business, 4 GB RAM, 64 GB SSD from 462,37 EUR Item no.: 323825 shipping weight: 1.20 kg Manufacturer: IPFire Product Description IPFire DuoBox Business, 4 GB RAM, 64 GB SSDThis Firewall version was specifically designed for small offices und home offices, in which a stable and fast Internet connection is essential. The Duo Box Business provides you with fast Internet, while being low-cost and energy-efficient. It keeps your business connected and, most importantly, it keeps your network safe. Main Features: ● 2x Gigabit Ethernet for LAN and WAN ● 1x 300 Mbit dual-band Wi-Fi with access point mode ● optionally upgradeable with LTE Scope of Delivery: ● System ● Power Cable ● PSU ● 2x WLAN antennas Specifications Application: Firewall application for SOHO, branch offices and IoT Type: aluminum profile construction without venting holes, black anodized Dimensions (W x D x H): 134 x 108 x 55 mm Weight: 1.2 kg Cooling: directly attached to chassis Operating conditions: 0 - 50 °C / 80 % rel. humidity CPU: Intel Pentium 3558U, 2x 1.7 GHz RAM: 4 GB DDR3L Mainboard: customized eNUC platform I/O front (standard): 1x RS232, 1x USB 3.0, 1x Audio I/O back: 2x HDMI, 2x USB 3.0, 2x RJ45 (Realtek GLAN) I/O internal: internal I/O might be occupied - depending on your configuration, 1x mSATA/mPCIe full size, 2x USB 2.0 Storage: 1x 2.5" 64 GB SSD (industrial, MLC, 0 - +70 °C ) Graphics: Intel HD, up to 2 independend displays supported, max. resolution: 3840 x 2160 px Wireless LAN, Unex DNUR-S2 300 Mbit dual-band WLAN module LTE: Huawei 909u-5214G LTE (FDD) B1/B2/B3/B5/B7/B8/B203G DC-HSPA+/HSPA+/HSPA/UMTS B1/B2/B5/B82G EDGE/ GPRS/ GSM - 850/900/1800/1900MHz Power-In: DC wide-input 9..19V, 5.5 x 2.5 mm plug PSU: FSP060-DHAN3; external AC/DC adapterInput: 90 to 264 V ACOutput: 12 V / 60 W Power consumption: Idle 6 W, 100% load (Cel.) 11 W OS compatibility: IPFire, OPNSense, PFSense, Ubuntu Linux Scan this QR code to view the product All details, up-to-date prices and availability Powered by TCPDF (www.tcpdf.org). -
U.S. Government Printing Office Style Manual, 2008
U.S. Government Printing Offi ce Style Manual An official guide to the form and style of Federal Government printing 2008 PPreliminary-CD.inddreliminary-CD.indd i 33/4/09/4/09 110:18:040:18:04 AAMM Production and Distribution Notes Th is publication was typeset electronically using Helvetica and Minion Pro typefaces. It was printed using vegetable oil-based ink on recycled paper containing 30% post consumer waste. Th e GPO Style Manual will be distributed to libraries in the Federal Depository Library Program. To fi nd a depository library near you, please go to the Federal depository library directory at http://catalog.gpo.gov/fdlpdir/public.jsp. Th e electronic text of this publication is available for public use free of charge at http://www.gpoaccess.gov/stylemanual/index.html. Use of ISBN Prefi x Th is is the offi cial U.S. Government edition of this publication and is herein identifi ed to certify its authenticity. ISBN 978–0–16–081813–4 is for U.S. Government Printing Offi ce offi cial editions only. Th e Superintendent of Documents of the U.S. Government Printing Offi ce requests that any re- printed edition be labeled clearly as a copy of the authentic work, and that a new ISBN be assigned. For sale by the Superintendent of Documents, U.S. Government Printing Office Internet: bookstore.gpo.gov Phone: toll free (866) 512-1800; DC area (202) 512-1800 Fax: (202) 512-2104 Mail: Stop IDCC, Washington, DC 20402-0001 ISBN 978-0-16-081813-4 (CD) II PPreliminary-CD.inddreliminary-CD.indd iiii 33/4/09/4/09 110:18:050:18:05 AAMM THE UNITED STATES GOVERNMENT PRINTING OFFICE STYLE MANUAL IS PUBLISHED UNDER THE DIRECTION AND AUTHORITY OF THE PUBLIC PRINTER OF THE UNITED STATES Robert C. -
Unique Identifier for Staff (UID Staff) Overview
Unique Identifier for Staff (UID Staff) Overview The intent of this document is to provide an overview of the Unique Identifier for Staff (UID Staff) system prior to working in the UID Staff System. After reviewing this information, please review the training materials that are available on the UID Staff Training website (http://www.ncpublicschools.org/cedars/uniqueid/staff/training/) for instructions on how to complete the processes of the Staff UID System. Staff UID Overview • The Unique Identifier for Staff System (UID Staff) will assign a unique identifier to Staff who participate in the North Carolina public school system. • Unique IDs follow staff between school districts and remain valid even if they move out of state and then return to a NC public school. • Assigning unique identifiers is the first step in DPI’s multi-stage effort to create the NC Common Education Data Analysis and Reporting System (CEDARS). • UID Staff is built on the eScholar Uniq-ID® for Staff product. Overview of UID Staff Process The UID Staff process includes the following 8 steps: 1. Generate CEDARS Staff file from LEA/Charter School Payroll System • Instructions for generating this file can be found at: http://www.ncpublicschools.org/docs/cedars/uniqueid/staff/training/creating-extracts.pdf 2. Upload CEDARS Staff file into UID Staff and Initiates Data Validation • This file can be loaded into the Training Environment (https://cedarstrain.schools.nc.gov/staffid/) so that you can check for errors before loading into production. 3. Download Fix Errors Report (if data errors are found by the UID Staff System) 4.