Welcome to Stephen Gill's home on cymru.com. Contact me if you have any comments or questions!

Latest News

- Moved tools from qorbit.net to cymru.com. New location is at http://www.cymru.com/gillsr/tools.html

- Moved documents from qorbit.net to cymru.com. New location is at http://www.cymru.com/gillsr/documents.html

- 09/10/2003 - Nrancid posted to the tools page. This is an addon written for Rancid v. 2.2.2 for automation of your Netscreen configuration backups.

- 09/09/2003 - IP2ASN posted to the tools page. These scripts will determine the AS number from a list of IP addresses and can be run against a route-server or offline against a BGP table dump. Credits to Team-Cymru for making the tools available.

- 09/09/2003 - BGP Snarf posted to the tools page. This tool has been made available to the public as a relatively easy way for network engineers to monitor their own BGP prefixes. Credits to Team-Cymru for making the tools available.

- 08/26/2003 - Removed 220/8 from JUNOS [Secure|BGP] Templates. It was erroneously listed as a bogon.

- 05/08/2003 - Fixed typo in the JUNOS ISP Prefix Filter Loose and Strict Templates in Phase 7 for 128.0.0.0/2 and 192.0.0.0/3. Thanks to Daniel Kerr for pointing this out!

- 02/10/2003 - Opened up the BGP Snarf tool v2.2 to the public for monitoring critical DNS and infrastructure prefixes.  Two monitornig points are in place.  Seeking others to participate in the project.

- 12/20/2002 - Fixed a few bugs in the jtext JUNOS config conversion tool to address problems with 'group' statements, annotations, and disabled commands.

- 12/10/2002 - Posted "ScreenOS Hidden Commands Revealed", a command-line reference guide that describes as many undocumented ScreenOS commands as possible for those administrators who just can't get enough.

- 12/10/2002 - Posted two ISP prefix filter templates based on Barry Greene's Cisco counterparts.  The templates are almost identical except for their filtering policies which are based on loose and strict prefix allocation guidelines.

- 11/29/2002 - Posted a dynamic web page that lists the up-to-date Golden Networks. The web page is updated on a daily basis and checks the root server prefixes as well as the COM, NET, ORG, GOV, MIL, ARPA top level domains.

- 11/26/2002 - Updated special DNS prefixes in JUNOS BGP Template and JUNOS BGP Appnote. After manual verification it was determined that several of the Golden-networks prefixes are outdated and require modification including: j-root and i-gtld, j-gtld, k-gtld, and m-gtld.

- 11/23/2002 - 82.0.0.0/8 allocated to RIPE.  Bogon networks in all templates have been updated accordingly.

- 11/01/2002 - Formally released "Catalyst Secure Template", a detailed configuration template describing techniques on how to secure a Cisco Catalyst switch running IOS 12.0 and above.

- 10/16/2002 - All documents have been converted to HTML format for increased readability.  Both PDF and HTML are now available for each paper published on this site.

- 10/15/2002 - Public release of a paper covering attacks directed at stateful firewalls and countermeasures for mitigation entitled "Maximizing Firewall Availability."  Related notices: CERT VU# 539363.

- 09/15/2002 - Announced the NetscreenNews mailing list.  This list is aimed at providing a medium for knowledge sharing among Netscreen product end users.

- 08/26/2002 - Posted "PGP Key Verification", a brief paper on retrieving and verifying the authenticity of newly received PGP keys with examples using PGP Freeware and GnuPG.

- 08/07/2002 - 69.0.0.0/8 allocated to ARIN.  Bogon networks in all templates have been updated accordingly.

- 07/10/2002 - Posted "Application Note: Hardening Netscreen Firewalls", a detailed configuration template summarizing the steps necessary to harden ScreenOS 3.1 configurations. 

- 07/08/2002 - Added 198.18.0.0/15 (RFC 2544) and 128.0.0.0/16 (IANA Reserved) to all bogon lists.  Current JUNOS document versions are v1.62. 

- 07/04/2002 - 221.0.0.0/8 allocated to APNIC.  Bogon networks in all templates have been updated accordingly.

- 06/29/2002 - Posted a brief paper entitled,"ICMP redirects are ba'ad, mkay?", reviewing ICMP redirects and why their use should be avoided. 

- 06/21/2002 - Corrected bugs in the JUNOS BGP Template and Application Note relating to the filtering of small prefixes. 

- 06/16/2002 - Formally released "Application Note: Securing BGP on Juniper Routers", a paper based on the "JUNOS Secure BGP Template" that covers in detail the steps required to fully secure BGP on Juniper Routers. 

- 05/12/2002 - Awaiting feedback from CERT, Netscreen, Cisco, and Check Point on "Maximizing Firewall Availabilty", a paper describing techniques on improving resilience to session table DoS attacks.

- 04/04/2002 - Added a simple packet generator name "scooter" written for FreeBSD 4.5 that makes use of the rate limiting features of ipfw and the dummynet interface. It currently supports TCP, UDP, and ICMP-ECHO.

- 11/16/2001 - Formally released "JUNOS RADIUS Authentication", a document that reviews how to troubleshoot and configure RADIUS authentication and authorization between a Juniper router and Funk Steel-Belted Radius.  You might end up learning something about the RADIUS protocol along the way. 

- 11/06/2001 - Updated document names on this site to reflect a simpler naming convention. If you are having troubles with broken links, please update your shortcuts appropriately.

- 09/29/2001 - Updated diagrams and references in both JUNOS templates. Existing diagrams were a bit hard to understand and lacking in color. Also updated BGP damping configuration according to final RIPE-210 draft.

- 09/13/2001 - Formally released "RIPE-210 Addendum", a document which presents additional information regarding the original RIPE-210 publication surrounding the updating of DNS netblocks within standard BGP damping parameters.

- 09/11/2001 - Our deepest sympathies go out to those who have suffered so much as a result of the horrible tragedies that occurred today in the US. Our prayers are with those individuals who are experiencing such immense sorrow, and with those who felt the horrible need to create such terror. May we look to Christ for comfort, strength, and direction in our lives.

- 08/11/2001 - Corrected bugs in the JUNOS templates related to BGP damping and static discard routes.

- 07/05/2001 - Fixed a minor bug in the "JUNOS Secure Template", and improved support for newline characters in the "jtext" tool.

- 07/01/2001 - Posted the newly released jtext-gui, a front-end for the JUNOS Config Converter.

- 06/28/2001 - Added support for the "deactivate" statement in the JUNOS Config Converter.

- 06/09/2001 - Cleaned up the code for "icgen", an ICMP error message generator, and decided to make it available in the tools section. It can be used to send any ICMP error message based on the arguments you specify.

- 06/04/2001 - Completed the win32 console version of "jtext" and posted it in the tools section.

- 05/28/2001 - Updated the "JUNOS Secure Template" [v 1.0 draft] and "JUNOS Secure BGP Template" [v 1.0 draft] to reflect the most recent additions to their Cisco compatriots presented by Rob Thomas: "Secure IOS Template" [v 2.1] and "Secure BGP Template" [v 2.3].

- 05/26/2001 - I've written a web based tool named "jtext.pl" to convert JUNOS "function" style configurations into more user friendly "set" commands. I don't profess to be a perl monger, so if you have any code suggestions or enhancement requests let me know! This program has been taken offline and has been replaced by much better coding and updated bug fixes.

- 05/21/2001 - "JUNOS upto v. through route-filter" document complete. Covers in detail how the 'through' match-type actually functions.

- 05/02/2001 - qOrbit.net is now fully registered and operational.

- 04/27/2001 - First draft of this website created.  There may be a few bugs and errors here and there, so if you see any we'd like to know.

- 04/27/2001 - I'm working on registering qOrbit.net as my permanent domain name.  Hopefully this site will be around for a long time.

- 04/25/2001 - The first drafts of the "JUNOS Secure Template" and "JUNOS Secure BGP Template" have been completed.  They are currently being reviewed and tested for bugs.  The first official release of the documents should be available within the near future.


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