Re: Using Redhat utility 'screen' with oracle install GUI and x11 forwarding
- From: Martin Bach <development@xxxxxxxxxxxxxxxxx>
- To: oracledbaquestions@xxxxxxxxx,Dba DBA <oracledbaquestions@xxxxxxxxx>,ORACLE-L <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 20 Feb 2014 23:42:19 +0100
Hi there,
Apologies in advance if this doesn't answer your question but there might be a
better way to reattach to an X session. In all the attempts to forward x11
(where wasn't deactivated for security reasons) I found it to be dreadfully
slow and susceptible to network failure such as a laptop going to sleep or
hibernation. Or windows decided to reboot or similar mishaps.
In all these cases oui was practically unusable (slow) or didn't work at all.
The solution of my choice is either a silent installation in screen (cool
because it can be done so it is identical on all hosts) or if GUI was needed
then using vnc. Unlike x forwarding which always died on me if the initial
connection was lost, I could reliably reattach to running sessions and resume
where I was.
Oh and if you have a firewall simply forward port 590x and you have a SSH
encrypted connection as an added goody. Your vnc client then points to
localhost:x
Hope this helps,
Martin
On 20 February 2014 23:08:01 CET, Dba DBA <oracledbaquestions@xxxxxxxxx> wrote:
>The forwarding works. 'screen' is a linux utility. It lets you leave
>your
>remote session and it keeps running on the server. Its like running
>nohup,
>but you can do it with something interactive like sqlplus. Then
>reconnect
>later. your session keeps running.
>
>I am looking to see if anyone knows how to get x11 to work with screen.
>I
>can re-attach to my unix session, but I think my x11 projection is
>gone.
>
>http://www.rackaid.com/blog/linux-screen-tutorial-and-how-to/
>
>
>
>
>On Thu, Feb 20, 2014 at 4:53 PM, Lange, Kevin G
><kevin.lange@xxxxxxxxx>wrote:
>
>> Did you xhost + to allow the forwarding ?
>>
>>
>>
>> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
>> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Dba DBA
>> *Sent:* Thursday, February 20, 2014 3:49 PM
>> *To:* ORACLE-L
>> *Subject:* Using Redhat utility 'screen' with oracle install GUI and
>x11
>> forwarding
>>
>>
>>
>> Redhat 6 64 bit
>>
>> 11.2.0.4 clusterware install
>>
>> xming run on laptop
>>
>>
>>
>> I have to get behind a firewall, so I go to a specified unix server
>and
>> then execute
>>
>>
>>
>> ssh -X oracle@<IP>
>>
>>
>>
>> In putty I use
>>
>>
>>
>> x11 forwarding
>>
>> x display option: localhost:0.0
>>
>>
>>
>> I do not set the DISPLAY parameter in unix since I am using x11
>> forwarding. So its a little different.
>>
>>
>>
>> I ran screen, executed the server. Was able to get back into the
>server
>> and re-attach to my session.
>>
>>
>>
>> How do I get back into the x11 forwarding of the GUI installer? I
>think I
>> did this a few years ago, but I can't remember how. I need to kick
>off
>> installs and leave, plus my VPN can drop me during the install.
>>
>>
>>
>> I am re-attached to my screen session, but dont know how to get back
>into
>> the GUI installer.
>>
>>
>>
>> anyone know?
>>
>>
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--
Martin Bach
Enkitec
www.enkitec.com
martincarstenbach.wordpress.com
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