How to test tcp port when ping not allowed ?

How to test tcp port when ping not allowed ?

Hello,
I'm testing opmanager now.
My problem :
The ping ( icmp protocol) is not allowed on my network due to firewall restrictions.
So OpManager detects all my servers down !
How to force opmanager to test only on tcp port for services which has been detected on the discovery ? ( SMTP, POP....)
Thanks for answers.
Christophe Dumonet, from France.






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