Of value only to NetAdmins who have proper authorization. Mostly linking to CIT tools. Original info from Michael Hint's "Magic CIT info websites" (9/25/12) email.
Table of contents
See also
- CU Exchange's tools, for techs
- Cornell's email forwarding service, LDAP
- Michael Hint's useful links, in SharePoint
- Chemistry's Computer Exception Form and related networks
- Networks
- Non-Cornell domain names
Managed Firewall
- https://managed-firewall-service.security.cornell.edu/ (DUO required)
- Managed Firewall Service (IT Sec's docs)
- Change request of V1310 (EMC2's subnet), a non-A&S subnet:
- Email <bio-it@cornell.edu> if you need any changes or go directly to ITSO in an emergency (per James VanEe, 5/6/16).
- View-only ADOMs are Roger, Oliver, and Lulu. (Michael is not since he is an admin-ADOM for A&S.)
Wireless testing of CIT's wireless
DNS DB
Documented page
- http://dnsdb.cit.cornell.edu/
- Resolves to <http://www.it.cornell.edu/services/netreg/howto/>
- See the links there for:
- Host list <= Usually the one to use
- Subnet list
- Domain list
DNSDB batch
The DNSDB batch interface is great if you want to do large amounts of DNS changes and it is always needed if you are working with a IP address that isn’t yours to own ( for example, Amazon ).
The DNSDB batch language help page:
The DNSDB batch interface:
Example two sets of commands used by Michael Hint Oct. 2016, each of which can be run all at once. The first:
delcname nmr.chem.cornell.edu
delcname nmrscheduler.chem.cornell.edu
addcname nmr.chem.cornell.edu nmr-prod.us-east-1.elasticbeanstalk.com
addcname nmrscheduler.chem.cornell.edu nmr-prod.us-east-1.elasticbeanstalk.com
chgcnamettl nmr.chem.cornell.edu 300
chgcnamettl nmrscheduler.chem.cornell.edu 300
NOTE: Make sure to check at the bottom the boxes for verbose and for allow things to point to subnets we don’t own.
The second: The following commands should be run with the DNSDB Batch Processor at least 24 hours after we know everything is moved. They can be run all at once, too.
delhost nmrschedulerold.chem.cornell.edu
delcname nmrschedulertest.chem.cornell.edu
Aggregated XP Report
- https://aclviewer.cit.cornell.edu/cgi-bin/xptrack.pl?VLAN=411
- replace VLAN number with appropriate one
Many, many tools located under the DNSDB page:
- https://dnsdb.cit.cornell.edu/dnsdb.html
- MAC address look-ups, "DHCP logs":
CIT IP to jack tool
IP to active jack switch port lookup:
Source:
List of active jack switch ports:
The first resource's top-level page is called, "CIT Network Traffic Analysis Center". It contains two services/ tools at the top level:
- Usage statistics for individual IP addresses
- Offers both an interactive form, or via a shortcut to get the usage statistics for the computer currently being used.
- IP/MAC/jack address tracking tools
IP range pools
Cornell core service IP addresses:
. Useful info for ACL and other permission-settings. Includes large VDI pool, from March 2015.
DNS/CNAME/AREC tool
Selection from CIT's FAQ
- What is an A record and why do I need one?
- What is a CNAME?
How to Create CNAMEs without Owning the Target Domain:
And CIT's domain name glossary.
New NUBB (Network Usage Billing) website, summer 2015.
CIT now has page showing your usage broken down to day and device:
NOTES: Only shows your wireless devices. Charges only apply to students.
- Could be useful in supporting graduate/undergraduate student laptops/phones.
No longer usable, retained here for historical reasons
DNS DB: "Hidden" page, for IT support providers
- http://www.cit.cornell.edu/computer/support/hostreg/dnsdb.html (no longer valid, as of 8/7/14)