Tuesday, October 23, 2012

TidBits 2012

Remote connection :  To get the correct behavior when you try to remotely connect to a Topspin session, you should make sure that the firewall allows incoming connections on both the remote machine as well as the client machine.  If the remote host is allowing in-coming connections, but the client does not allow the remote host to connect back, then the tell-tale sign is that you will go as far as the PAM login window and then the connection will fail.   
  
If you have setup openvpn connection between the remote host and client machine, then you don't have to spend time to tweak the ports through which the machines have to allow the connections. You can simply let the incoming connections from the trusted IP-s in the non-routable subnet on all ports. 

popt and  spectrum limits:  

If you are employing a wide SW when running  popt,  make sure that you don't use the entire SW as the difference between F1P and F2P.  The automated ABSF command will fail and the optimization will stop abruptly after the first increment.   Use a limit not greater than 5 ppm to get the desired result.