I see 3xMy friends sort and uniq still think there are 2 duplicates with v0.10.16.15, in this case Masternode 108.61.172.141 exists 2x.
Maybe a simple check of the existing Masternodes before adding a new one would be a good idea.
Code:
$ darkcoind masternode list | sort | uniq -c | grep -v "1 "
3 "108.61.172.141:9999" : 1,
EDIT:
hmmm
Code:
$ darkcoind masternode list pubkey | grep 108.61.172.141:9999
"108.61.172.141:9999" : "XfER6ntjTbtpC17JYds3e7f6snuPnk7PEC",
"108.61.172.141:9999" : "Xik5Cx8H6HFZjndoVQ3vRPnSPNYYaxiVpJ",
"108.61.172.141:9999" : "XkRkkD5C3ihsMMknJWHEeR2caTS1tRWu2y",
$ darkcoind masternode list vin | grep 108.61.172.141:9999
"108.61.172.141:9999" : "10faebcfc825127bf698e7ab82cf7475130f701da3a28957013cadf4be8e9854",
"108.61.172.141:9999" : "b6dc42c0941b5c5ba73851c8f8cc6df151caa8f2488119ca34eea8b3dee6de58",
"108.61.172.141:9999" : "595baf8a968d0ebaaa7784510557dbb49c413f1f80a0cedb3e32f1d74bd6d9ce",