For connectors that connect to a Popdock gateway on a local server, you will need to open a port to allow Popdock to access them. To protect your security, you can add firewall whitelist rules to only allow Popdock in. The IP addresses that you will need to allow access to are:
US Servers:
20.59.202.13
20.59.202.181
20.59.202.201
20.59.202.207
20.59.202.232
20.59.202.244
20.59.202.246
20.59.202.252
20.59.203.3
20.59.203.8
20.59.203.13
20.59.203.14
20.59.203.20
20.59.203.33
20.59.203.71
20.59.203.95
20.59.203.104
20.59.203.112
20.59.203.127
20.59.203.129
20.59.200.185
20.59.203.131
20.59.203.142
20.59.203.158
20.59.203.160
20.59.203.228
20.59.204.14
52.162.0.186
52.162.0.189
52.162.0.191
40.80.191.1
65.52.217.110
65.52.213.144
65.52.209.185
23.96.250.25
52.252.139.210
52.252.142.209
52.252.136.208
52.252.136.209
52.252.136.224
65.52.217.59
52.162.107.15
52.237.130.0
52.162.246.120
52.162.244.187
52.237.159.88
52.162.243.157
52.162.246.99
52.162.240.197
European Servers:
20.93.253.239
20.93.253.253
20.93.253.129
20.93.254.45
20.93.254.46
20.93.253.177
20.93.253.181
20.93.253.201
20.93.253.203
20.93.253.205
20.93.253.67
20.93.254.24
20.93.254.26
20.93.254.29
20.93.253.251
20.93.254.33
20.93.254.42
20.93.254.35
20.93.254.36
20.93.254.37
20.93.250.91
20.93.254.38
20.101.0.16
20.101.0.135
20.101.0.184
20.101.0.249
20.101.1.8
20.101.1.162
20.101.1.173
20.101.2.91
20.50.2.64
13.69.68.1
104.47.161.32
104.47.142.248
40.115.59.104
104.47.144.212
104.47.161.137
104.47.143.150
104.47.161.68
40.118.101.67
52.166.205.135
52.166.207.53
52.166.56.15
52.178.112.188
52.178.33.31
52.166.202.231
Australian Servers:
20.193.31.115
20.193.31.123
20.53.64.156
20.53.66.245
20.53.67.26
20.53.67.127
20.53.67.168
20.53.68.20
20.53.69.7
20.53.69.47
20.53.69.140
20.53.69.189
20.53.119.21
20.53.116.244
20.53.119.67
20.53.115.86
20.193.1.173
20.53.115.87
20.53.117.114
20.53.117.115
20.53.118.238
20.53.119.31
20.53.119.44
20.193.1.160
20.53.69.225
20.53.70.65
20.53.70.213
20.193.44.190
20.193.45.29
20.193.45.83
20.37.196.192
13.75.138.224
13.70.65.114
13.70.71.83
13.70.65.145
13.70.67.84
13.70.71.54
13.73.195.135
20.92.208.162
20.92.208.164
20.92.208.191
20.92.209.91
20.92.209.127
20.92.209.191
20.92.209.249
20.92.210.145
20.92.211.128
20.92.211.187
20.92.211.217
20.92.211.225