ssh monitoring

[Kevin Meyer_1]

I am using ssh to forward data to a standby server for Oracles Dataguard through port forwarding. We seem to have the ssh installed, configured and running correctly. However, it is difficult to determine if the data is actually going through the local port before it is forwarded to the remote server. Is there a means by which we could test whether the port (9025) has data passing through it? This is our ssh command executed.

ssh -f -C -N -L 9025:hal9004:1522 halbak

[RAC_1]

Get lsof tool and monitor the port, it will give details.

lsof -i tcp:9025
Use netstat and check for your port.

[Sridhar Bhaskarla]

Hi,

You can use 'nettl' and 'netfmt' to trace the ports. With 11i (and patched 11.0) there is 'nettladm' available as an interface ot nettl|netfmt commands.

If you like a more fun to do software, then try 'ethereal'. You can use 'tcpdump' syntax to specify only the destination port and host and capture the information. Make a note of the dependencies. It may be little hard to get ethereal up and running. But once it is done, it's a lot of fun.

http://hpux.cs.utah.edu/hppd/hpux/Gtk/Applications/ethereal-0.9.15/

-Sri





-Sri

[Steven E. Protter]

This package includes the tool ethereal.

GUI, free it can monitor the port.

SEP

[Steven E. Protter]

This package includes the tool ethereal.

GUI, free it can monitor the port.

This time the link.
Duh
http://software.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPUXIEXP1111

SEP