RE: X-Windows Over VPN Issues

Yes, the database server is Red Hat 7 Linux. I don't type any ssh commands when I log in, it just connects when I chose a server.

Scott Canaan '88
Sr Database Administrator
Information & Technology Services
Finance & Administration
Rochester Institute of Technology
o: (585) 475-7886 | f: (585) 475-7520
srcdco_at_rit.edu<mailto:srcdco_at_rit.edu> | c: (585) 339-8659

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From: Sweetser, Joe <JSweetser_at_icat.com> Sent: Tuesday, April 7, 2020 2:21 PM
To: Scott Canaan <srcdco_at_rit.edu>; 'oracle-l_at_freelists.org' <oracle-l_at_freelists.org> Subject: RE: X-Windows Over VPN Issues

I am assuming the database server is Linux. If so, what ssh command do you use from secureCRT to log into the database server? I had similar problems with Cygwin in the past that were resolved (at least partly) by using: ssh -Y oracle_at_hostname

Note that in Cygwin the DISPLAY variable was automatically set to localhost:10.0

Hth,
-joe

From: oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org> <oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>> On Behalf Of Scott Canaan Sent: Tuesday, April 7, 2020 12:10 PM
To: 'oracle-l_at_freelists.org' <oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org>> Subject: X-Windows Over VPN Issues

With everyone working from home, a new issue has arisen. We can't get x-windows to work over VPN. That makes it difficult to run things like dbua.

Our environment:
Windows 10 laptop - at home connected via Cisco VPN to work Xming running on laptop
SecureCRT running on laptop, under Options -> session options, X11 Forwarding turned on

Linux 7 server
Oracle 12, 18, and 19

I've tried setting the DISPLAY to the IP address on my laptop (from ipconfig) and to 127.0.0.1:0.0.

When I try to run dbua, it sits for a while then returns the following error:

Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit

I'm sure someone has been able to get this to work. If anyone can let me know what needs to be done, I'd really appreciate it.

Thank you,

Scott Canaan '88
Sr Database Administrator
Information & Technology Services
Finance & Administration
Rochester Institute of Technology
o: (585) 475-7886 | f: (585) 475-7520
srcdco_at_rit.edu<mailto:srcdco_at_rit.edu> | c: (585) 339-8659 CONFIDENTIALITY NOTE: The information transmitted, including attachments, is intended only for the person(s) or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and destroy any copies of this information.

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http://www.freelists.org/webpage/oracle-l Received on Tue Apr 07 2020 - 20:51:04 CEST