If you have a security requirement to change the login screen on operating systems that are accessible via a terminal session, it’s a farily easy change on a Celerra or VNX File control station due to the DART OS being based on Linux. Simply log in as root and edit the /etc/issue file with vi. It contains the login banner that you see immediately after logging in to a control station.
This is what the default /etc/issue file contains on a VNX control station, and what you’ll see by default when you log in:A customized version of the Linux operating system is used on the EMC(R) VNX(TM) Control Station. The operating system is copyrighted and licensed pursuant to the GNU General Public License (“GPL”), a copy of which can be found in the accompanying documentation. Please read the GPL carefully, because by using the Linux operating system on the EMC VNX you agree to the terms and conditions listed therein. EXCEPT FOR ANY WARRANTIES WHICH MAY BE PROVIDED UNDER THE TERMS AND CONDITIONS OF THE APPLICABLE WRITTEN AGREEMENTS BETWEEN YOU AND EMC, THE SOFTWARE PROGRAMS ARE PROVIDED AND LICENSED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. In no event will EMC Corporation be liable to you or any other person or entity for (a) incidental, indirect, special, exemplary or consequential damages or (b) any damages whatsoever resulting from the loss of use, data or profits, arising out of or in connection with the agreements between you and EMC, the GPL, or your use of this software, even if advised of the possibility of such damages. EMC, VNX, Celerra, and CLARiiON are registered trademarks or trademarks of EMC Corporation in the United States and/or other countries. All other trademarks used herein are the property of their respective owners. EMC VNX Control Station Linux release 3.0 (NAS 7.1.71)
I don’t work for IBM, but below is an example of what you could change the /etc/issue file to. I included the hostname of the control station, our company logo, and a legal warning regarding unathorized logins and system monitoring. Because the standard login banner from EMC includes the DART OS Version on the last line, I suspect that the /etc/issue file is updated along with any OS upgrades or patches, although I can’t confirm that right now. I’m keeping a backup copy in the same directory to easily change it back after a DART upgrade.
You can also edit the /etc/motd file, which displays immediately after a successful login. By default the file contains the message “EMC Celerra Control Station Linux” or “EMC VNX Control Station Linux”, along with what I assume to be the date of the original OS installation.
EMC VNX Control Station <Host_Name>
IIIIIIIIIIIIIIIIIII BBBBBBBBBBBBBBBBB MMMMMMM MMMMMMM
IIIIIIIIIIIIIIIIIII BBBBBBBBBBBBBBBBBB MMMMMMMM MMMMMMMM
IIII BBBB BBBB MMMM MMMM MMMM MMMM
IIII BBBB BBBB MMMM MMMM MMMM MMMM
IIII BBBBBBBBBBBBBBBBB MMMM MMMMMMM MMMM
IIII BBBBBBBBBBBBBBBBB MMMM MMMMM MMMM
IIII BBBB BBBB MMMM MMM MMMM
IIII BBBB BBBB MMMM M MMMM
IIIIIIIIIIIIIIIIIII BBBBBBBBBBBBBBBBBB MMMM MMMM
IIIIIIIIIIIIIIIIIII BBBBBBBBBBBBBBBBB MMMM MMMM
Warning: This system is restricted to IBM authorized users for
business purposes only. Unauthorized access or use is
a violation of of company policy and the law.
This system may be monitored for administrative and security
reasons. By logging in, you agree that you have read and
understand this notice.