Stanford University StanfordNetDB

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

http://stanfordnetdb.stanford.eduSunia Yang sunia@stanford.eduRob Riepel riepel@stanford.edu

Stanford University StanfordNetDB

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

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

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.

Stanford University StanfordNetDB

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

– e.g. A Name cannot be MX• Authorization of names by domain• 1 min to generate Stanford zone file• Updated hourly at Stanford

Stanford University StanfordNetDB

DHCP

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

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

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

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)

Stanford University StanfordNetDB

Demonstration

Stanford University StanfordNetDB

acme.com

eng.acme.com

10.8.0.0/16

Stanford University StanfordNetDB

acme.com

eng.acme.com

laptop.eng.acme.com

10.8.0.0/16

Stanford University StanfordNetDB

acme.com

eng.acme.com

server.eng.acme.com

laptop.eng.acme.com

10.8.0.0/16

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

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

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

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

10.16.17.0/2410.16.16.0/24

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

10.16.17.0/2410.16.16.0/24

router.acme.com

Stanford University StanfordNetDB

How do we use NetDB?- Data Flow

NetDB

DNS

DHCP

ReportsWhois

IPM

Cfg Mgmt

Self-Registration

Firewalls

Monitoring

Sys AdminsDesktop AdminsNetwork AdminsNetworking

SUNet

Stanford University StanfordNetDB

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

Stanford University StanfordNetDB

CodeArchitecture

Other

NetDB

Web browserCGI scripts

StanfordWho

whois server

rmi_server.jar

netdb.jar

Database

NetDB GUIrmi_client.jar

http servernetdb_server.jar

html librarynetdb_html.ja

r

Other clients

DNS scripts DHCP scripts

BIND dhcpd

CLI

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

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

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

Stanford University StanfordNetDB

Futures

• IPv6

Stanford University StanfordNetDB

More Information

• http://stanfordnetdb.stanford.edu– Demo version- data refreshed daily– Download files– Documentation

• Contact Us!– netdb-users@lists.stanford.edu

Stanford University StanfordNetDB

The NetDB Team

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