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Remote Access

Remote Access. July 10, 2007. What we’ll cover. Remote access to NCAR’s network Remote access to Servers, Routers, Switches. Remote access to NCAR’s network – via dialup:. Primary Uses Outsource Provider Architecture Configuration RADIUS Dialup Client. Primary Uses.

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Remote Access

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  1. Remote Access July 10, 2007

  2. What we’ll cover • Remote access to NCAR’s network • Remote access to Servers, Routers, Switches

  3. Remote access to NCAR’s network – via dialup: • Primary Uses • Outsource Provider • Architecture • Configuration • RADIUS • Dialup Client

  4. Primary Uses • Provide network connectivity • When working from home • When traveling via 1-800 • When working from remote sites • As a last resort when no other means of connectivity is available • For NCAR Airplanes

  5. Outsource Provider • Level 3 – Managed Modem • 50 ports, burst up to 150 ports • One local number, one toll free number • $30/port MRC + toll free usage

  6. Architecture

  7. RADIUS Configuration • L3 does NOT maintain userid/password database. • UCAS userid/passwords used for authentication • Separate Authorization for Local and toll-free • Called number used for authorization • “Special” non UCAS users authenticated with <userid>@local • Creates accounting records RADIUS requests from Level 3 NCAR’s Radius Proxy NCAR’s Radius Server Level 3’s Radius Proxy UCAS

  8. Dialup Client Configuration • Local phone number: 720-259-1189 • Toll Free Number: 866-450-6664 • Authentication Protocol: PAP • Userid/password: UCAS userids and passwords will be used for authenticating calls to the local and toll-free phone numbers. • Networking Protocol: PPP • Must use VPN to access NCAR’s network

  9. Remote Access via Dialup Stats • Since moving to Level3 • 182 unique users • Longest connected • Total minutes = 175190 • Total sessions = 9 • Most frequent caller • Total session = 581 • Total minutes = 9013 • Peak simultaneous users, approx 15

  10. Remote Access to Servers, Routers, Switches • Types of user interfaces • KVM or Terminal Server? • Types of remote access

  11. Types of user interfaces • GUI • windows/ linux servers, etc • Command Line • routers, switches, linux servers, etc

  12. KVM or Terminal Server? • KVM • Uses Keyboard, Video, and Mouse ports for GUI • Windows/ linux servers, etc • Terminal Server – • Uses serial port • Routers, switches, linux servers, etc

  13. IP Network Telephone Network Console connection via modem Types of Remote Access • OOB (Out of Band) • In Band IP Network x x Telnet or ssh

  14. KVM • Setup & Configuration • NCAR’s KVM equipment • KVM configuration • Server Side configuration • Client Side configuration (KVM over IP only) • User Interface • OSCAR • KVM over IP

  15. Setup & Configuration: NCAR’s KVM equipment NCAR purchased Avocent’s DSView3 management software, DSR2030, and DSR4030.

  16. Setup & Configuration: NCAR’s KVM equipment (cont.) DSView DSView Client ML FL DSR 2030 DSR 4030 DSR 2030 Local KMM Local KMM Local KMM Logical Connection

  17. Setup & Configuration: KVM configuration • Authentication – KVM over IP usesRADIUS (token), then local. Local access uses nets/nets. • Authorization – KVM over IP allows controlofaccess to ports/servers. Local access, access to all ports. • Encryption – keyboard, video, mouse from kvm to client • TCP Ports – Default ports are 1078, 3211, 3871, 8192, 2068. • Proxy all sessions through DSView.

  18. Setup & Configuration: Server Side configuration • KVM terminator – max distance 150 ft. between DSR and KVM terminator. • Mouse - Mouse acceleration should be turned off and the motion speed should be set to medium.

  19. Setup & Configuration: Server Side configuration (cont.) • Video - Supported Screen Resolutions and Refresh Rates • 640 x 480 @ 60 Hz • 800 x 600 @ 75 Hz • 960 x 700 @ 75 Hz • 1024 x 768 @ 75 Hz • 1280 x 1024 @ 75 Hz

  20. Setup & Configuration: Client Side configuration • The DSView 3 software supports the following browsers: • Microsoft Internet Explorer version 6.0 SP1 and later • Mozilla version 1.7.3 and later • Firefox version 1.0 and later; version 1.5 or later is required for Macintosh operating systems • Netscape version 7.2 and later • NOTE: The Macintosh Safari browser is not supported by DSView 3 software. On supported Macintosh system clients, you must use Firefox version 1.5 or later. • TCP ports 443 and 1078 are used to display the video feed over IP • Requires jre version 1.5.0_02 to support the KVM viewer

  21. User Interface • Local via the OSCAR (On-Screen Configuration and Activity Reporting) interface • KVM over IP using DSView3

  22. User Interface: OSCAR • 1) Open the rack mounted KMM (keyboard, mouse, monitor). Hit the “Print Screen” key. Use the password printed on the keyboard to login. • 2) You will be presented with OSCAR’s main window . Local users have access to all ports. Use the UP/Down arrows to select a port and hit enter. The video feed from the selected port will appear. • 3) To exit, the “Print Screen” key which will take you back to the Main Menu. Click on “Log out” to exit.

  23. User Interface: OSCAR (cont.) OSCAR Interface Navigation Basics Keystroke Function • Print Screen Opens the OSCAR interface. Press Print Screen twice to send the Print Screen keystroke to the currently selected DSRIQ module. • F1 Opens the Help screen for the current dialog box. • Escape Closes the current dialog box without saving changes and returns to the previous one. If the Main dialog box is displayed, pressing Escape closes the OSCAR interface and displays a status flag if status flags are enabled. See the Controlling the status flag section on page 30 for more information. In a message box, pressing Escape closes the pop-up box and returns to the current dialog box. • Enter Completes a switch operation in the Main dialog box and exits the OSCAR interface. • Up/Down Arrows Moves the cursor from line to line in lists. • Right/Left Arrows Moves the cursor between columns. When editing a text box, these keys move the cursor within the column. • Page Up/Page Down Pages up and down through Name and Port lists and Help pages.

  24. User Interface: KVM over IP • Live Demo • Single Cursor Mode • Auto Scale Mode

  25. Terminal Server • NCAR’s equipment • User Interface

  26. Terminal Server – NCAR’s Equipment Cisco 3640 32 port Async card

  27. Terminal Server – NCAR’s Equipment (cont.) ML To Telco Cisco 3640 Modem Network connection Serial Connections to Console port Routers/switches

  28. Terminal Server – User Interface

  29. Coming Attractions • Remote access via dialup • Cricket stats • KVM • Virtual media • OOB access via modem • Integration with other CISL groups? • Terminal Server • Migrate from 3600 to voip routers

  30. Links • Remote Access via Dialup http://netserver.ucar.edu/nets/internal/docs/ras/index.html • Remote Access - KVM http://netserver.ucar.edu/nets/internal/devices/kvm/avocent_kvm.html • Remote Access - Terminal Servers http://netserver.ucar.edu/nets/internal/devices/term-servers/index.html

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