[smokeping-users] Distributed master - slave smokeping question - what is the data network traffic type?

ITheodoridis at bankofgreece.gr ITheodoridis at bankofgreece.gr
Wed Jan 9 18:10:02 CET 2013

Hello to all.

I have successfully setup a master-slave configuration in my enterprise internal network.

Now I want to do the same thing for a measuring setup which expands across firewall zones. Two slaves exist in different DMZs in the firewall targeting hosts in the same zone with fping and the master is in the internal zone (local zone), gathering the data. I have managed to establish primary communication between  master and slave and the slaves connect to the master and receive their configuration. The problem is I get no data back in the graphs.

Before I changed them into slaves the smokeping servers in the DMZ were hitting their targets without problems and their graphs were populated, but that led to three different servers/web-interfaces for me (two in the DMZs and one in the local zone). I would prefer getting everything in one web interface so that is the reason for transition to a master-slave setup.

I am guessing that I am missing something in the transport of measured data back to the server, so I would like to know if possible how do the slaves send their data back to the server after they are done measuring. 
I know the communication for the reception of their configuration is http traffic. Is it the same for the measured data?

I must also say that I don’t get any significant info from my firewall’s logs. Is it possible that the transfer is smtp? Or is that the failed messages alerts (which I never see)?

If anyone has any ideas I would be gratefull. Or my last choice is to use a sniffer and try and find out what is going on..


Ioannis Theodoridis


PS: Thank you Darren Murphy for the ‘nomasterpoll’ answer.

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