title: Proxy mode steps h:,,Rule left side,_,_,_,,Rule right side,_,_,_ h:Where , Step , Host , Source IP , target IP , port ,, host , vserver , port horizon , , "Must use option --proxy 192.168.2.1,81" , _, _, _, _ ,_, _, _ nagios , , "Nagios IP is 192.168.3.1" , _, _, _, _ ,_, _, _ nagios , , "nagios must connect to vserverX port 80 on hostapp1" , _, _, _, _ ,_, _, _ horizon , 1 , , , 192.168.2.1 , 81 ,, , , horizon , 2 , , 192.168.3.1 , 192.168.2.1 , 81 ,, , , horizon , 3 , , nagios , 192.168.2.1 , 81 ,, , , nagios , 4 , Sends connect hostapp1:vserverX 80 to horizon , _ , _ , _ , _ , _, _, _ nagios , , hostapp1:vserverX is just a string: No meaning, _ , _ , _ , _ , _, _, _ horizon , 5 , , nagios , hostapp1:vserverX , 80 ,, , , horizon , 6 , Sends connect nagios hostapp1:vserverX 80 linkID to blackhole , _ , _ , _ , _ , _, _, _ blackhole , 7 , serverA , nagios, hostapp1:vserverX , 80 ,, , , blackhole , 8 , serverA , nagios, hostapp1:vserverX , 80 ,, hostapp1 , vserverX , 80 blackhole , 9 , Uses the rendez-vous protocol to establish the link , _ , _ , _ , _ , _ , _, _