Stanford NetDB- An Open Source Network Management Application for - - PowerPoint PPT Presentation

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Nov 16, 2022 247 likes •545 views

Stanford NetDB- An Open Source Network Management Application for DNS, DHCP, IP Address Spaces, etc. http://stanfordnetdb.stanford.edu Sunia Yang sunia@stanford.edu Rob Riepel riepel@stanford.edu Stanford University

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Stanford University StanfordNetDB

Stanford NetDB-

An Open Source Network Management Application for DNS, DHCP, IP Address Spaces, etc.

http://stanfordnetdb.stanford.edu

Sunia Yang sunia@stanford.edu Rob Riepel riepel@stanford.edu

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Stanford University StanfordNetDB

Summary

Introduction
What is Stanford NetDB?
Demonstration
How do we use NetDB?
Distribution

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Stanford University StanfordNetDB

Introductions

Rob Riepel

– NetDB architect – Architect/programmer/keeper for DNS, DHCP

Dmitri Priimak

– Programmer for middleware and front end

Sunia Yang

– NetDB "user advocate,” tester – Network monitoring – Application bandwidth management

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Stanford University StanfordNetDB

What is Stanford NetDB?

Model of the IP network- 20 years
DNS, DHCP, Whois data source
IP address management
Host information/inventory
Distributed administration
GNU Public License version 2 (2007)

Models how humans think of networks.

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Stanford University StanfordNetDB

DNS Name Space

Supports domains/subdomains
Checks all names for uniqueness
Enforces DNS rules

– e.g. An Alias cannot be MX

Authorization of names by domain
1 min to generate Stanford zone file
Updated hourly at Stanford

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Stanford University StanfordNetDB

DHCP

Supports static/dynamic dhcp settings
Supports DHCP options
Updated every 10 min at Stanford

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Stanford University StanfordNetDB

IP Address Space Management

Address spaces organized into networks
“network”

maps to layer 2 network

Easy to split/join/move address spaces
Authorization by

address space

Reserved addresses can only be used by gods
Uniqueness enforced
Automatically looks for next available address

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Stanford University StanfordNetDB

Host Inventory

Nodes show the way humans think of

computers

Associates nodes with people/location/dept
Custom fields allow quick extension of

database

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Stanford University StanfordNetDB

Distributed Administration

Ease of use allows many users

– 900+ at Stanford, 15 minutes of training

Granular authorization
Choice of interfaces

– Web - general users – CLI - power users, scripting – API - Dorms for custom interface

Easy import/export (csv)
When possible, limit user’s view to capabilities

– e.g. only show authorized grps, address spaces, etc.

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Stanford University StanfordNetDB

Demonstration

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Stanford University StanfordNetDB

acme.com

eng.acme.com

10.8.0.0/16

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Stanford University StanfordNetDB

acme.com

eng.acme.com laptop.eng.acme.com

10.8.0.0/16

SLIDE 13

Stanford University StanfordNetDB

acme.com

eng.acme.com server.eng.acme.com laptop.eng.acme.com

10.8.0.0/16

SLIDE 14

Stanford University StanfordNetDB

acme.com

eng.acme.com laptop.eng.acme.com

10.8.0.0/16

server.eng.acme.com

10.16.16.0/24

SLIDE 15

Stanford University StanfordNetDB

acme.com

eng.acme.com laptop.eng.acme.com

10.8.0.0/16 10.16.16.0/23

marketing.acme.com server.eng.acme.com

SLIDE 16

Stanford University StanfordNetDB

acme.com

eng.acme.com laptop.eng.acme.com

10.8.0.0/16 10.16.16.0/23

marketing.acme.com server.eng.acme.com

George Rosie

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Stanford University StanfordNetDB

acme.com

eng.acme.com laptop.eng.acme.com

10.8.0.0/16

marketing.acme.com server.eng.acme.com

George Rosie 10.16.17.0/24 10.16.16.0/24

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Stanford University StanfordNetDB

acme.com

eng.acme.com laptop.eng.acme.com

10.8.0.0/16

marketing.acme.com server.eng.acme.com

George Rosie 10.16.17.0/24 10.16.16.0/24

router.acme.com

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Stanford University StanfordNetDB

CLI interface

Only for node records
Allows for bulk adds, changes, deletes

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Stanford University StanfordNetDB

How do we use NetDB?- Data Flow

NetDB

DNS DHCP Reports Whois IPM Cfg Mgmt Self-Registration Firewalls Monitoring

Sys Admins Desktop Admins Network Admins Networking

SUNet

NetDB distribution Other Stanford apps/scripts

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Stanford University StanfordNetDB

Statistics

6 State 110 OS 625 Model 118 Make 678 Location 257 Department 199 Group 414 Domain 175 Admin Team 724 980 User 579(1350) 748(2631) Network (Address Space) 58839 112344 Node Active Registered Record

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Stanford University StanfordNetDB

Code Architecture

Other NetDB Web browser CGI scripts StanfordWho whois server rmi_server.jar netdb.jar Database NetDB CLI rmi_client.jar http server netdb_server.jar html library netdb_html.jar Other clients DNS scripts DHCP scripts BIND dhcpd

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Stanford University StanfordNetDB

Servers used at Stanford

Web/middleware

– Dell 1850, dual 2.8Ghz, 4GB RAM – Linux Debian

Database

– Dell 2650, 4 x 3Ghz, 7GB RAM – Linux Redhat 2.4.21-37.ELsmp

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Stanford University StanfordNetDB

Platform Dependencies

Oracle 10G database

– works with Express version

Java 1.6
Debian Linux

– probably works on any Unix with Java 1.6

Perl DBD::Oracle for reporting

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Stanford University StanfordNetDB

NetDB at Your Site

External pieces required:

– Directory provider (e.g. LDAP)

Seed data + sample directory provider included

– Web login requires webauth – CLI requires Kerberos

Sample DNS/DHCP generation scripts

included

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Stanford University StanfordNetDB

Futures

IPv6
Ruby

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Stanford University StanfordNetDB

More Information

http://stanfordnetdb.stanford.edu

– Demo version- data refreshed daily – Download files – Documentation

– netdb-users@lists.stanford.edu

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Stanford University StanfordNetDB

The NetDB Team

Dmitri Priimak - software developer
Joel Lidtke - software developer
Rob Riepel - architect
Sunia Yang - QA, user advocate