View source for Getting Started on Private Clusters

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==Managing your password==
CAC has a [[Getting_Started#Rules_for_creating_passwords|password policy]] in effect. The first time that you login to the <tt>cac.cornell.edu</tt> domain, you will be required to change your password. Each password must have at least eight characters and must contain at least three of the following four elements: (1) uppercase letters (2) lowercase letters (3) special characters (4) digits. Your password can be set or changed on any of the CAC login nodes, and the password will be updated on all CAC resources. Passwords expire every six months. Do not share your password. There are more detailed instructions below.

===Rules for creating passwords===
{{:Rules for Creating Passwords}}

===Change a password at first login===
{{:Changing password at first login}}

=== Change password at any time ===
{{:Changing password any time}}

=== Locked accounts===

There have been instances in which user accounts have been locked. Some common causes of locked accounts and the solutions are:

:*Mistyping your password several times in a row. 
:::<tt>Solution</tt>: Wait about a 1/2 hour and then try again. Be sure that your caps lock key is not on!
:*Trying to login to a Windows login node by using SSH when you have a new or expired password. 
:::<tt>Solution</tt>: Login to a Windows login node using Remote Desktop Connection or SSH to a linux login node.
:*Failing to log off all other sessions connected to login nodes. 
:::<tt>Solution</tt>: Log off all remote connections. Disconnecting the sessions is not enough.
:*Failing to disconnect locally mapped drives to the CAC file server before changing your password. 
:::<tt>Solution</tt>: Disconnect all locally mapped drives, wait a 1/2 hour until account is unlocked, and then re-map the drive with the new password.

If you can't log on or can't wait you can submit a Password Reset ticket on our [//www.cac.cornell.edu/help issue tracking system]

==Checking your CAC project ==
Cornell University users can view their account limits at [https://{{SERVERNAME}}/services/cu/memberlimits.aspx CAC Account Limits].<br />
Partner Program members should contact Paul Redfern at [mailto:red@cac.cornell.edu red@cac.cornell.edu] if they need information on their membership limits.

==Connecting to CAC resources==

=== Red Cloud ===
'''Please see the [[Red Cloud]] and [[OpenStack]] pages for information on managing, connecting to, and using Red Cloud resources.'''

The information on the remainder of this page is primarily for users of CAC-maintained [[Private Clusters]] (for particular research groups) and data storage services, especially CAC's online, non-archival data storage.

However, it is potentially of interest to users of Red Cloud '''''and''''' other CAC services.

===CAC login nodes===

There are three types of login nodes:
:* The head nodes for the various Linux-based private clusters
:* Linux login node: <tt>linuxlogin.cac.cornell.edu</tt> 
:* Windows login node: <tt>winlogin.cac.cornell.edu</tt>

The general CAC login nodes, '''''linuxlogin''''' and '''''winlogin''''', are mostly intended for researchers who are have procured CAC storage services, apart from Red Cloud and private clusters (see [[Getting Started#Working with CAC file storage|Working with CAC file storage]]). These two login nodes are broadly accessible from the Internet, and they provide a convenient way for researchers to gain access to their files. On the general login nodes, you will find a modest number of software tools installed to aid in working with files (but please do not use these tools for doing production computing there).

In what follows, we will often use '''''linuxlogin''''' and '''''winlogin''''' as stand-ins for the particular CAC servers that you are trying to access (e.g., in a private cluster or in Red Cloud).

===Connect to Linux===
{{:Connect to Linux}}

===Connect to Windows===
{{:Connect to Windows}}

==Working with CAC file storage==
A dedicated file server named storage03.cac.cornell.edu provides access to much of CAC's file storage, including the home directories for many of the private clusters. To work with your files, you can access this server in a variety of ways from any operating system. The first two of the following methods are covered in detail in this section:

:# [[Getting Started#Home directory access|Home directory access]] - Mount/map your portion of the storage03 filesystem as network share or network drive. Once the filesystem is mounted, your files on storage03 appear in a folder that you can access just like other folders on your computer. On Linux, use the <tt>mount</tt> command; on Mac, use "Go > Connect to server"; on Windows (including winlogin), enter the UNC address into the address bar of a File Explorer window, or do "Map a network drive".
:# [[Getting Started#File transfer|File transfer]] - Use a file transfer utility like scp or sftp to copy your files to or from storage03. Connect to linuxlogin to do this, because storage03 is not directly accessible. On linuxlogin, your main CAC folder on storage03 is your home folder when connect via ssh, scp, or sftp.
:# - Use Globus to transfer files to or from storage03. The source or destination of the files must also be a Globus endpoint (and note, you can set up any computer to be a personal endpoint). Endpoints at CAC are described on the [[File Transfer using Globus]] page.

Note: by default, your home directory on linuxlogin and its contents will be readable and executable by all other users of CAC systems. If this is not what you want, you can change the permissions of the home directory and its files and subdirectories via the standard Linux or Windows mechanisms. However, be aware that this may lead to conflicts for cross-platform applications, as Windows and Linux permissions are not 100% compatible.

===Home directory access===
{{:Home Directory Access}}

===File transfer===
{{:File transfer}}

==Linux usage tips==
If you have never used Linux before, we recommend exploring the [[Linux Tutorial]].

{{:Linux Usage Tips}}

==More information==
The CAC main website is [https://{{SERVERNAME}}/ here]. There are many useful documents on the Support page at [[ Main Page| CAC documentation]].

==Acknowledging CAC==
{{:Acknowledging CAC}}

==FAQ/Troubleshooting==
#[[FAQ#Account| Account FAQ]]
#[[FAQ#Login| Login FAQ]]
# If you have more questions, see [[FAQ| here]]