For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Kishore_51265's avatar
Kishore_51265
Icon for Nimbostratus rankNimbostratus
Apr 04, 2008

load balancing ssh

-How to load balance around 50 ssh servers?   -How to avoid man-in-the-middle message by the ssh client?   -load balance on multiple criteria, like system load, of connections etc  
config
design
dennypayne's avatar
dennypayne
Icon for Employee rankEmployee
Aug 19, 2008
There shouldn't be anything particularly troublesome about load balancing ssh, a port 22 vip with members in a pool on port 22 should work fine with the default settings and source IP persistence.

 

 

Can the LTM's ssh into the pool members directly from the command line? That would be the easiest way to check for connectivity on the back end. If that works, and the servers are passing whatever health check is configured in the pool (ie pool and virtual are green) then I would start looking at the configuration of the virtual itself, but again the basic default settings should suffice.

 

 

You may need to create a persistence profile with a longer timeout than the default source IP settings (5 min) to ensure people don't get kicked out of their session as often though.

 

 

Denny