Announcements of an urgent nature, such as disruptions of network connectivity and scheduled and unscheduled maintenance of servers, are posted here.

Deployment of NYU MFA System for Remote Access via ssh

 

On Thursday, April 2nd, 2020, at around 10 pm, the Courant remote access gateway, access.cims.nyu.edu, will be rebooted, after which users will be required to use NYU's Multifactor Authentication (MFA) implementation to login to these servers and gain remote access to systems on the Courant network. Please be sure that you have tested your access to NYU Home in advance to confirm that you have MFA set up with current device information and ensure that remote access to Courant systems is not disrupted. Please see the NYU MFA instructions for more information on its set-up and use. 

Following the transition, upon connecting to the server with your CIMS username and after entering your correct CIMS password, you will see the prompt that should be familiar from logging in to NYU Home, and you will need to choose between getting a push to a mobile device, a phone call or passcodes, just as you do when logging in to NYU Home (though for most, a default is set, so users have become accustomed to this part of the process being non-interactive).

For example, the fictitious Courant user, zyx, with NYU NetID zyx987, connecting from a Unix-based remote system, such as a MacBook, would see this:

-bash-4.2$ ssh zyx@access.cims.nyu.edu
Password:
Duo two-factor login for zyx987

Enter a passcode or select one of the following options:

 1. Duo Push to XXX-XXX-6789
 2. Phone call to XXX-XXX-6789
 3. Phone call to XXX-XXX-4321
 4. SMS passcodes to XXX-XXX-6789 (next code starts with: 2)

Passcode or option (1-4): 1
Success. Logging you in...

The message "Duo two-factor login for zyx987" above appears after the account's correct password is entered. In the above case, the first option is chosen and the login is successful after the push is accepted on the user's phone.

We have tested MFA access from command line shells in Linux and macOS terminals and from PuTTY and WinSCP in Windows. If you have any questions about other client interfaces, please contact helpdesk@cims.nyu.edu. Also contact us if you ever get a push, a call, or SMS from Duo as described above that you did not initiate!


For those who use public key authentication, this method will continue to work as it does now after MFA is implemented. However, it will be disabled after the systems are rebooted and can be reenabled by the user after an initial MFA login. In addition, we will now require the use of a specific public key file called "authorized_keys_access" for public-key authentication to access.cims.nyu.edu. For security reasons we ask that you please use a passphrase for your public/private key pair for remote connections to access.cims.nyu.edu. You should continue to use the standard "authorized_keys" file for public-key authentication between Courant systems (that is, you might have two authorized_keys files in your .ssh directory: one for remote access, the other for internal use). Please see the instructions on how to set up public-key authentication for the access servers.

No other remotely accessed Courant services, such as mail or web servers, will be affected by this change. We appreciate your patience and understanding as we make this critical network securty upgrade. 

Linux Reboots and Updates (March 2020)

Linux compute nodes and desktop machines will be rebooted on Thursday, March 5th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The following is a list of machines that already have the updates, so you may test any critical packages or code beforehand: 

  • pubbox28.cims.nyu.edu
  • pubbox32.cims.nyu.edu
  • pubbox40.cims.nyu.edu

The next scheduled Linux update is scheduled to take place on April 2nd. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

Linux Reboots and Updates (February 2020)

Linux compute nodes and desktop machines will be rebooted on Thursday, February 6th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The following is a list of machines that already have the updates, so you may test any critical packages or code beforehand: 

  • pubbox29.cims.nyu.edu
  • pubbox31.cims.nyu.edu
  • pubbox37.cims.nyu.edu

The next scheduled Linux update is scheduled to take place on March 5th. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

Linux Reboots and Updates (January 2020)

Linux compute nodes and desktop machines will be rebooted on Thursday, January 9th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The next scheduled Linux update is scheduled to take place on February 6th. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

Linux reboots and updates

Linux compute nodes and desktop machines will be rebooted on Thursday, December 5th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The following is a list of machines that already have the updates, so you may test any critical packages or code beforehand: 

  • pubbox28.cims.nyu.edu
  • pubbox32.cims.nyu.edu
  • pubbox37.cims.nyu.edu
  • pubbox40.cims.nyu.edu
  • pubbox42.cims.nyu.edu
  • pubbox49.cims.nyu.edu
  • pubbox52.cims.nyu.edu
  • pubbox53.cims.nyu.edu

The next scheduled Linux update is scheduled to take place on January 9th. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

Linux reboots and updates

Linux compute nodes and desktop machines will be rebooted on Thursday, November 7th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The following is a list of machines that already have the updates, so you may test any critical packages or code beforehand: 

  • pubbox28.cims.nyu.edu
  • pubbox29.cims.nyu.edu
  • pubbox31.cims.nyu.edu
  • pubbox32.cims.nyu.edu
  • pubbox37.cims.nyu.edu
  • pubbox39.cims.nyu.edu
  • pubbox40.cims.nyu.edu
  • pubbox42.cims.nyu.edu
  • pubbox47.cims.nyu.edu
  • pubbox48.cims.nyu.edu
  • pubbox49.cims.nyu.edu
  • pubbox50.cims.nyu.edu
  • pubbox52.cims.nyu.edu
  • pubbox53.cims.nyu.edu

The next scheduled Linux update is scheduled to take place on Thursday, December 5th. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

Linux reboots and updates

Linux compute nodes and desktop machines will be rebooted on Thursday, October 10th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The following is a list of machines that already have the updates, so you may test any critical packages or code beforehand: 

  • pubbox31.cims.nyu.edu
  • pubbox37.cims.nyu.edu
  • pubbox47.cims.nyu.edu
  • pubbox53.cims.nyu.edu

The next scheduled Linux update is scheduled to take place on Thursday, November 7th. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

Linux reboots and updates

Linux compute nodes and desktop machines will be rebooted on Wednesday, August 14th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The following is a list of machines that already have the updates, so you may test any critical packages or code beforehand:

  • pubbox28.cims.nyu.edu
  • pubbox29.cims.nyu.edu
  • pubbox37.cims.nyu.edu
  • pubbox40.cims.nyu.edu
  • pubbox42.cims.nyu.edu
  • pubbox47.cims.nyu.edu
  • pubbox48.cims.nyu.edu
  • pubbox50.cims.nyu.edu
  • pubbox52.cims.nyu.edu
  • pubbox53.cims.nyu.edu

The next scheduled Linux update is scheduled to take place on Thursday, October 10th. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

Linux reboots and updates

Linux compute nodes and desktop machines will be rebooted on Thursday, July 11th for software and security updates. These updates will be applied to machines between 7:00 pm and midnight. In an effort to try and minimize any corrupted files or lost work, please save all your data and log out of any Linux systems before 7:00 pm.

The following is a list of machines that already have the updates, so you may test any critical packages or code beforehand:

  • pubbox28.cims.nyu.edu
  • pubbox29.cims.nyu.edu
  • pubbox31.cims.nyu.edu
  • pubbox32.cims.nyu.edu
  • pubbox37.cims.nyu.edu
  • pubbox39.cims.nyu.edu
  • pubbox40.cims.nyu.edu
  • pubbox42.cims.nyu.edu
  • pubbox47.cims.nyu.edu
  • pubbox50.cims.nyu.edu
  • pubbox52.cims.nyu.edu
  • pubbox53.cims.nyu.edu

The next scheduled Linux update is scheduled to take place on Thursday, August 1st. Please plan your usage accordingly. For more information about our computing resources and their maintenance, please see our computing resources page.

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