Running mongostat with no params locally to connect to localhost shows an incorrect number of connections when compared to running with -h hostname or checking the rest interface.

-bash-3.2$ ./mongostat
connected to: 127.0.0.1
insert/s query/s update/s delete/s getmore/s command/s flushes/s mapped vsize res faults/s locked % idx miss % q t|r|w conn time
0 0 0 0 0 3 0 168095 168385 52 0 0 0 0|0|0 8 16:42:49
0 0 0 0 0 3 0 168095 168385 52 0 0 0 0|0|0 8 16:42:50

-bash-3.2$ ./mongostat -h hostname.com
connected to: sharemdb01c.internal.shutterfly.com
insert/s query/s update/s delete/s getmore/s command/s flushes/s mapped vsize res faults/s locked % idx miss % q t|r|w conn time
0 17 2 0 4 5 0 171038 173876 40354 1 0 0 0|0|0 209 16:46:22
0 31 1 0 2 6 0 171038 173876 40354 0 0 0 0|0|0 209 16:46:23

http://hostname.com:28017/serverStatus?text

"connections" :

{ "current" : 208, "available" : 19792 }

,