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Table of Contents
5.6.3 Verifying the Cellular Connection ......................................................................................................... 109
5.6.4 Cellular Modem Watchdog ....................................................................................................................110
5.6.5 Dual SIM Failover ...................................................................................................................................110
5.7 Cellular Operation ...............................................................................................................................................112
5.7.1 OOB Access Setup .................................................................................................................................113
5.7.2 Cellular Failover Setup ............................................................................................................................114
5.7.3 Cellular Routing .....................................................................................................................................115
5.7.4 Cellular CSD Dial-In Setup .....................................................................................................................115
5.8 Firewall and Forwarding ......................................................................................................................................116
5.8.1 Configuring network forwarding and IP masquerading .........................................................................117
5.8.2 Configuring client devices ......................................................................................................................119
5.8.3 Port forwarding .................................................................................................................................... 120
5.8.4 Firewall rules ......................................................................................................................................... 121
6. Secure SSH Tunneling and SDT Connector ................................................................................................................ 124
6.1 Configuring for SSH Tunneling to Hosts ............................................................................................................. 125
6.2 SDT Connector client configuration .................................................................................................................... 125
6.2.1 SDT Connector installation .................................................................................................................... 126
6.2.2 Configuring a new console server gateway in the SDT Connector client .............................................. 127
6.2.3 Auto-configure SDT Connector client with the user’s access privileges ................................................ 128
6.2.4 Make an SDT connection through the gateway to a host .................................................................... 129
6.2.5 Manually adding hosts to the SDT Connector gateway ........................................................................ 130
6.2.6 Manually adding new services to the new hosts .................................................................................. 131
6.2.7 Adding a client program to be started for the new service .................................................................. 133
6.2.8 Dial in configuration ............................................................................................................................. 135
6.3 SDT Connector to Management Console ........................................................................................................... 135
6.4 SDT Connector - telnet or SSH connect to serially attached devices ................................................................... 136
6.5 Using SDT Connector for out-of-band connection to the gateway .................................................................... 138
6.6 Importing (and exporting) preferences ............................................................................................................... 140
6.7 SDT Connector Public Key Authentication .......................................................................................................... 140
6.8 Setting up SDT for Remote Desktop access ........................................................................................................ 141
6.8.1 Enable Remote Desktop on the target Windows computer to be accessed ......................................... 141
6.8.2 Configure the Remote Desktop Connection client ................................................................................ 142
6.9 SDT SSH Tunnel for VNC .................................................................................................................................... 146
6.9.1 Install and configure the VNC Server on the computer to be accessed ................................................ 146
6.9.2 Install, configure and connect the VNC Viewer .................................................................................... 147
6.10 Using SDT to IP connect to hosts that are serially attached to the gateway ...................................................... 149
6.10.1 Establish a PPP connection between the host COM port and console server ...................................... 149
6.10.2 Set up SDT Serial Ports on console server ............................................................................................ 153
6.10.3 Set up SDT Connector to SSH port forward over the console server Serial Port ................................... 154
6.11 SSH Tunneling using other SSH clients (e.g. PuTTY) .......................................................................................... 154
7. Alerts and Logging .................................................................................................................................................... 158
7.1 Configure Auto-Response .................................................................................................................................. 158
7.2 Check Conditions ............................................................................................................................................... 160
7.2.1 UPS/Power Supply ................................................................................................................................ 160
7.2.2 UPS Status ............................................................................................................................................ 160
7.2.3 Serial Login/Logout ............................................................................................................................... 161
7.2.4 ICMP Ping ............................................................................................................................................. 161
7.2.5 Cellular Data ......................................................................................................................................... 161
7.2.6 Custom Check ...................................................................................................................................... 161
7.2.7 SMS Command ..................................................................................................................................... 162
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