I am using a program called Applications Manager to do some monitoring. I t can monitor by using ssh credentials. For some reason, it is not able to login to the ESX console. When I check /var/log/messages it has
Did not receive identification string from X.X.X.X that of course would be my ip address. I can ssh fine with putty and from another linux box. I found some additional information on the net with a user who had the same problem. They did a test and disabled the firewall and then the software was finally able to login. My question is why? Also if I disable the firewall temp just to run these performance tests, Im assuming it wont have any adverse effects. Finally, When logged into the vmware infrastructure client and using the performance tab, I assume the client is pulling its data to graph performance directly from the ESX filesystem ie..
/proc/meminfo for memory as an example.
Sorry have to add one more thing. I noticed the ESX box's time was incorrect, so I set it with the date command. Does this affect any of my previous performance data?
thanks once again.
For item #1, if disabling the firewall enables login to work, then Applications Manager is either listening on another port or responding on another port. You can try temporarily disabling the firewall and monitoring the server, and on the service console run a 'netstat -p' command and look for the Application Manager process. You'll probably see the port the app is talking on, and you may need to open this port outbound.
As for item #2, you'll definately skew the performance data. The central reporting server will display the data according to the timestamp of the update, so when you change the time, you won't know where your prior stats were appearing...you could have older data appearing after current data if the time was running fast.
I am using a program called Applications Manager to
do some monitoring. I t can monitor by using ssh
credentials. For some reason, it is not able to
login to the ESX console.
Which ESX version? V 2.5.x? V 3.0.x?
Do you use SSH-keys? See:
Sorry have to add one more thing. I noticed the ESX
box's time was incorrect, so I set it with the date
I think it`s highly recommend to use/configure "ntp".
BTW: Try vmktree, a very nice monitoring tool!
Thanks for the answers guys, according to advent.net, an additional port needs to be open on the ESX firewall. whats the easiest way to do that and make it permanent? I did some digging and see that the firewall config is in some XML file? I'm hoping there is an easier interface for firewall changes.