What methods can I use to access XSEDE digital services?
Extreme Science and Engineering Discovery Environment (XSEDE) digital services support three authentication methods:
- Single Sign-On (SSO) using your XSEDE-wide
password:
- From the XSEDE User Portal (web access, quickest for new users)
- Using a desktop client (Mac OS X, Unix, Linux, Windows)
- Using non-default certificates
For instructions for each, see the login quick start in the TeraGrid User Support archives.
Note: If your XSEDE allocation includes time on a digital service at the National Institute of Computational Sciences (NICS), you won't be able to access the service using SSO until you activate your NICS account. Additionally, access to Nautilus (NICS) requires the use of an RSA One Time Password (OTP) token, which you will receive in the mail after you have activated your account and verified your user information.
Note: If your XSEDE allocation includes time on a resource at the Texas Advanced Computing Center (TACC), you won't be able to use SSO until you have activated your TACC account. TACC will email you a welcome message that includes a link to the TACC User Portal and instructions for activating your account.
- SSH2 key pairs; see Logging
in with SSH Key Pairs.
- Site passwords (available on request; not supported by all Resource Provider sites); see Logging in with Site-Specific Passwords.
This document was developed with support from National Science Foundation (NSF) grant OCI-1053575. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.
Last modified on January 24, 2012.







