Network-related Information

1. Security Information Sites
2. Anti-SPAM and "Authentication" Tools and Information
3. Anti-SPAM Lists aka "RBLs"
4. Information about sending mail and keeping ISPs happy
5. Information relevant to Encrytion Techniques, especially PKI
6. Information relevant to configuring STARTTLS for SMTP Mail
7. Sites that track and expose Internet-based: Urban Legends, Hoaxes, Rumors, Folklore, Chain Letters, etc.
8. Network Tools
9. Status Displays & Health Monitoring
10. Security - Papers, Articles, and Information
11. Technology - Papers, Articles, and Information
12. Switch & Router Vendors
13. Other Companies & Organizations
14. Other information of interest

1. Security Information Sites
   • Internet Storm Center by SANS
   • DShield.org - Distributed Intrusion Detection System, Are you hacked?
   • CERT/CC Current Activity, CERT/CC Current Scanning Activity by port
   • Internet Traffic Report
   • US-CERT (The US Computer Emergency Readiness Team)
   • IC3 - Internet Crime Complaint Center (file a complaint) (FBI/NW3C)
   • Microsoft Security - information on the latest threats and how to deal with them
   • McAfee - Avert Alert
   • Trend Micro
   • Symantec / Norton
   • LURHQ
   • SOPHOS
   • F-Secure
   • Cisco - PSIRT Advisories
   • CERT Coordination Center
   • McAfee - Virus Information Library
   • SWITCH - Security Links
   • NIPC - National Infrastructure Protection Center
   • CERT
   • SANS Institute
   • NAI - McAfee
   • Microsoft - Security Page
   • DriveSavers - Disk Recovery Experts (Near Novato)

2. Anti-SPAM and "Authentication" Tools and Information
   • SenderBase - Email Repuation Service
   • dnsbl.toolbot.com - check an address against numerous lists
   • List of All Known DNS-based Spam Databases w/ Lookup
   • Openrbl: Multi DNSBL Lookup
   • MX Toolbox - Multi-blacklist lookup and more
   • Network Abuse Clearinghouse - www.abuse.net
   • Fight SPAM on the Internet - spam.abuse.net
   • Spam Links Tools, DNSBL Tools
   • DomainKeys: Proving and Protecting Email Sender Identity - by Yahoo!
   • SPF: Sender Policy Framework - SPF Lookup and Validation Tool
   • Sender ID
   • Spamassassin - 3.2.x Configuration doc - another config doc - book

3. Anti-SPAM Lists aka "RBLs"
   • The SPAMHAUS Project - Free real-time protection from SPAM and exploits (proxies/worms/trojans), [IP lookup]
   • SORBS - fighting spam, DNS access to the SPEWS list, [IP lookup]
   • SPEWS.ORG - SPAM Prevention Early Warning System
   • SpamCop - spam protection in various forms
   • UCEPROTECT-Network
   • JunkEmailFilter.com - Free (see details at the Wiki) Anti-SPAM White/Black DNS RBLs
   • dnswl.org - Free cooperative White List

4. Information about sending mail and keeping ISPs happy
   • Yahoo! - Info for the Postmaster
   • Major Internet Service Providers - SMTP limit and email rate limits
   • Sendmail.org - some relevant configuration options

5. Information relevant to Encrytion Techniques, especially PKI
   • Introduction to Public-Key Cryptography
   • Introduction to SSL

6. Information relevant to configuring STARTTLS for SMTP Mail
   • SMTP STARTTLS in sendmail/Secure Switch
   • Sendmail Documentation PDF (Search for STARTTLS)
   • OpenSSL Docs
   • Configuring Sendmail's STARTTLS (SSL) and Relaying
   • How to generate self-signed SSL certificates

7. Sites that track and expose Internet-based: Urban Legends, Hoaxes, Rumors, Folklore, Chain Letters, etc.
   • Snopes.com - Rumor has it...
   • Hoaxbuster by CIAC
   • Hoax Slayer - Latest Email Hoaxes - Current Internet Scams - Hoax-Slayer Newsletter
   • netsquirrel.com - The Urban Legend Combat Kit
   • About.com - Urban Legends and Folklore

8. Network Tools
   • Info Sniper - all sorts of information about an IP address
   • Host IP Info, GeoIP and more
   • DNS Stuff: DNS Tools, SPAM Checking, WHOIS, tracert, ping, and other network tools
   • www.DNSreport.com - a very handy tool for checking DNS registrations, delegations, PTR and MX records, etc.
   • Check DNS - another handy tool for checking DNS registrations, delegations, PTR and MX records, etc.
   • Network-Tools.com - DNS, Ping, Traceroute, whois, etc.
   • Gibson Research, Home of Shields Up! - online Windows oriented security checker
   • Port Authority, by Gibson Research - Port info and testing
   • my NetWatchman Info and Resources on threats, checks, trends, and cures
   • pps -> bps conversion
   • Speakeasy Speed Test (also shows your connecting IP)
   • DSL Reports / Broadband Reports - Speed Tests
   • CNET Bandwidth Meter Speed Test
   • Top 100 Network Security Tools - great site!
   • WIMI - What Is My IP (and other on-line network tools)

9. Status Displays & Health Monitoring
   • SecurityWizardy.com Internet Head Up Display: Composite Security and Internet Status
   • Internet Traffic Report
   • Internet Health Report: based on data from 10 different ISPs

10. Security - Papers, Articles, and Information
    • SANS' Information Security Reading Room
    • Home & Small Office
      • Windows XP: Surviving the First Day
      • Home User's PC Security: Threats To Windows Users and Countermeasures To Defend Against These Threats
      • Best Computer Security Practices for Home, Home Office, Small Business, and Telecommuters
      • Windows Issues
      • Wireless Security and Monitoring for the Home Network
    • Wireless Access
    • How to check web logs for attacks

11. Technology - Papers, Articles, and Information
    • Really good paper on Protocol Overhead in IP/ATM Networks by John David Cavanaugh (local copy of the pdf)
    • Paper on Optical Fiber and 10 Gigabit Ethernet (local copy of the pdf)

12. Switch & Router Vendors
    • Alcatel
    • Cisco
    • Extreme Networks
    • Foundry Networks
    • Juniper Networks

13. Other Companies & Organizations
    • CENIC - ISP for most of California's Educational Institutions
    • Lucent Technologies

14. Other information of interest
    • HP Install Network Printer Wizard
    • Information of Network Taps and Tap vendors
    • List of Internet TLDs
    • Manufacturer ID List [The first three octets of an ethernet MAC address comprise the Organizational Unique Identifier (OUI) granted to ethernet card manufacturers by the IEEE.]
    • Cisco db service
    • Internet Assigned Numbers Authority
    • IANA - Valid Top-Level Domains (TLDs)
    • Email Syntax
    • Port Number database - all ports enumerated
    • NTP Time Server Lists: ntp.isc.org, NIST, USNO