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Welcome to manual pages for Tieto DevOps Space. You can read all articles here or use menu on the left.
Portal
Logs and graphs
Resources page contains information about the project's resources. Project owners can request change of resources by contacting support using Help Center.
Users can show usage statistics using Usage in the menu.
Item Logs opens page with detailed statistics about project.
SSH keys and connection
Generating a SSH Key in a Windows
Make sure to follow instructions at SSH Key#GeneratingaSSHKeyinaWindows
Generating a SSH key on Linux
Make sure to follow instructions at SSH Key#GeneratingaSSHkeyonLinux
Connecting to server using PuTTy for Windows
You'll need a SSH key. How to generate is described in this article.
PuTTy for Windows can be downloaded from this link.
You can find a guide for using PuTTy for Windows at this link.
Remote Desktop Clients
Virtual Environment Ubuntu screen is freezing randomly while using X2Go
Besides possible performance issues this can by caused by incompatibility of sound card. It can be solved by disabling audio support in X2Go - Session > Preferences > Media > Sound support
Closed remote proxy connection
It may happen that you can get following message when trying to connect to remote desktop.
the session. This may be due to the wrong authentication
credentials passed to the server.
Workaround 1
Initial workaround is to remove all opened sessions from your local ~/.x2go directory:
rm -f ~/.x2go/S-*
When connecting to server remember to terminate old session(s) and start a new session.
Workaround 2
If workaround 1 did not help:
- repeat workaround 1 to avoid sessions mess
login to your x2go remote server and remove .Xauthority file in your home directory on the remote server:
rm -f ~/.Xauthority
- try X2go again
Workaround 3
If workaround 1+2 did not help:
- repeat workaround 1+2 to avoid sessions mess
login to your x2go remote server and remove .ICEauthority file in your home directory on the remote server:
rm -f ~/.ICEauthority
- try X2go again
Wrong version or invalid session authentication cookie
Symptoms
Message in x2go log while connecting to server:
Loop: PANIC! The remote NX proxy closed the connection. Error: The remote NX proxy closed the connection. Loop: PANIC! Failure negotiating the session in stage '7'. Error: Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie. Error: Wrong version or invalid session authentication cookie.
This seems to occur sometimes after reboot of server while some users were still connected.
Workaround
login to your x2go remote server via ssh and remove +re-create x2go sessions database file in your home directory on the remote server:
rm -f /var/lib/x2go/x2go_sessions x2godbadmin --createdb
- try X2go again
Inspired by https://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=323
FAQ
How to solve cygwin unprotected key problem?
I can't connect to server using SSH key from Cygwin. I found, that I can't change ssh key file permission.
WARNING: UNPROTECTED PRIVATE KEY FILE! To resolve this copy your SSH key to /tmp/mysshkey: mkdir /tmp/fermin cp ~/.ssh/id_rsa /tmp/fermin chmod 600 /tmp/fermin/id_rsa ssh -l fermin -i /tmp/fermin/id_rsa localhost