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CGD Computing FAQs

Visitor Info for Administrative Assistants

Questions to ask the visitor's sponsor:

  • Does this user have or need access to CISL machines?
  • Does this user have or need access to CGD machines?
  • Where will the visitor sit?
  • How long will the visitor stay?
  • Will the visitor be bringing their personally-owned laptop?
  • Will the visitor require a Project Number (for CISL accounts, esp Mass Store)
  • If visitor is to use CGD systems, do they require access to the clusters?
  • If CGD visitor is long term, do they require Meeting Maker?
  • If visitor is to use CGD systems, do they require a Sunray?

Note: ISG can help answer whether or not accounts already exist.

Scenario 1:
Some visitors require nothing but temporary guest wireless accounts. They can use wireless and the Hearbeat page with a 3-day guest account. This could be true for a visitor staying 2 weeks or less.

Wireless access steps for visitor who does not have a UCAS password (copy/paste these into a welcome email or print out for them):

This form should be used to request all of the following account types:

    1. Connect laptop to UCAR's wireless network.
    3. Login with the guest name and password provided by your host.
    4. Once authenticated, keep browser window open in the background.

Cryptocard (requires Project Number)

A CryptoCard is required for access to CISL High Performance Computers as well as access to CGD from outside our network via goldhill or moffatt. Visit the CryptoCard FAQ to request a CryptoCard.

Acquire computer

CGD/IS only may be able provide Linux systems for new users. This will be based on availability. If you need a Linux system set up for a user, submit a CGD/IS Work Request at least two weeks in advance.

We do not provide computers running Windows, or Mac OS for desktop use.

Visitor laptops are no longer permitted on CGD network.

Effective Mon 6 Feb 2006, computer equipment (mostly laptops) that are not owned by NCAR and managed by a member of CGD will no longer be allowed on the CGD internal network. Please read our Policy for Visitor Laptops. They can however, bring in laptops for use on UCAR's wireless network.


Scenario 2:
Visitor will be bringing a laptop, already has a UCAS account, and requires no further assistance:

If you have a visitor who will bring their own laptop, already has a UCAS account setup (for wireless access), and doesn't need any additional equipment or accounts, then your work is almost done. Just send a courtesy email to ISG letting us know the visitor is coming and where he or she will sit. Guest laptops will only use wireless access, they will not be plugging into an ethernet cable for network access (exception: crow's nests).

Wireless access steps for a visitor who has a UCAS password (copy/paste these into a welcome email or print out for them):

    1. Connect laptop to UCAR's wireless network.
    3. Login with UCAS name and password
    4. Once authenticated, keep browser window open in the background.

Scenario 3:
Visitor will be bringing a laptop , does NOT have a UCAS account, but does not require additional accounts. They are visiting 2 weeks or less.

In this situation, the Administrative Assistant or sponsor should open a wreq and ask us to setup a guest wireless account. Guest wireless accounts expire after 3 days, but it is more efficient for us to setup a guest account and renew it a couple of times - than have to create full-blown accounts for a short-term visitor. You can also skip the wreq and create the guest wireless account yourself if you wish (just send a courtesy email to ISG letting us know the visitor is coming and where he or she will sit). Any UCAR employee can create a guest wireless account with no ISG intervention: https://128.117.64.54/

Wireless access steps for visitor who does not have a UCAS password (copy/paste these into a welcome email or print out for them):

    1. Connect laptop to UCAR's wireless network.
    3. Login with the guest name and password provided by your host.
    4. Once authenticated, keep browser window open in the background.

Scenario 4:
Visitor is staying more than 2 weeks, needs equipment, and needs accounts.

You will need to work with the visitor's sponsor on which servers they will need access to. Here is a brief explanation of what is on the form:

Requestor's e-mail address: Your email
Preferred Account Name: Suggest a name for the user (doesn't guarantee it!)
User's Full Name: User's full name
Arrival Date: When they will be here, or date they need first access
Account Expiration Date: End of their visit or collaboration. See their sponsor
Office Location: Room number
Project Number: Provide for CISL accounts
Scientist Number: 4-digit code. Will exist if they have accounts. We can look this up for you
Primary Group: Usually the primary sectionof the sponsor, eg: cms, tss, cas, etc
Account Sponsor: Must be current employee. Is typically a Scientist
CGD Account: Request CGD account only if they need access to CGD-specific machines.
Do they require cluster accounts? See sponsor.
Access: choose Normal unless sponsor says otherwise.
Meeting Maker: Only request if needed. We can always add it later very easily.
SCD (CISL) Account: IBMs, Tempest, Mass Store. See sponsor. Proj # required.
ISG will also request a Cryptocard* for the user
UCAS: May not be needed if user is offsite, although needed for CISL machines.

    2. Open a 2nd request if the user will need equipment setup and let us know where/when they will be sitting. Typically the only machines we provide for visitors are Sunrays. If a machine move is necessary, ISG will move the machine. Keep in mind that different machines use different network ports. If we need to request a port change, it will take CISL up to one week. If you need a same-day port change, CISL will charge for the service.

Visitors can use the wireless network with their laptop. The only time we would request a guest ethernet port in an office is if the office is known to have poor wireless connectivity (crow's nests).

* Note on Cryptocards: When a visitor is to receive a Cryptocard, it is beneficial to gather and file their mailing address, phone number and any other contact information. Once the visitor's accounts are closed, the visitor will need to return their Crypocard. CISL will request that the sponsor contact the visitor if necessary to retrieve the Cryptocard. The sponsor's account will be charged $75 for any Cryptocard that is not returned.

Also keep in mind that there is a turnaround time for account requests. We prefer two-weeks notice.


If you have any other questions or concerns, please