1 Remote Access July 10, 2007. 2 What we’ll cover Remote access to NCAR’s network Remote access to Servers, Routers, Switches.

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Presentation transcript:

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  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 Creates accounting records NCAR’s Radius Proxy NCAR’s Radius Server UCAS RADIUS requests from Level 3 Level 3’s Radius Proxy

8 Dialup Client Configuration Local phone number: Toll Free Number: 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 = 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 Types of Remote Access In Band IP Network Telnet or ssh x OOB (Out of Band) IP Network Telephone Network Console connection via modem x

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.) DSR 2030 DSR 4030 MLFL DSView DSView Client Local KMM Logical Connection

17 Setup & Configuration: KVM configuration Authentication – KVM over IP uses RADIUS (token), then local. Local access uses nets/nets. Authorization – KVM over IP allows control of access 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, 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 60 Hz  800 x 75 Hz  960 x 75 Hz  1024 x 75 Hz  1280 x 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 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 32 port Async card Cisco 3640

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

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 Remote Access - KVM Remote Access - Terminal Servers