Minicom Advanced Systems CMG-DCM manual Remote access

Page 51

Operator's guide

Remote access

The settings on this page determines which ways you can use to access the DCM over a TCP/IP network. If all these methods are disabled, you may still be able to connect to the DCM over a serial link using getty (see serial.x.service, above), or over a direct modem connection. Your settings will come into effect as soon as you click Save settings, so you should ensure that you have a backup means of communication with the DCM before disabling these methods.

net.remoteaccess.allow.telnet : Select yes to allow telnet clients to log in to the DCM's Linux operating system, or no to disallow connections over telnet. Select no to disable it. By default, this method is disabled for security reasons.

net.remoteaccess.allow.ssh : Select yes to allow SSH clients to log in to the DCM's Linux operating system, or no to disallow connections over SSH. By default, this method is enabled.

net.remoteaccess.allow.http : Select yes to allow access to the Web-based administration system by unencrypted HTTP. (A username and password will still be required, but they are sent over the network insecurely.) Select no to disable it. By default, this method is disabled for security reasons.

net.remoteaccess.allow.https : Select yes to allow access to the Web-based administration system by HTTPS (secure HTTP), or no to disable it. By default, this method is enabled.

December 2005

51

Image 51

Contents CMG-DCM Table of Contents December Inside the DCM Introduction CMG-DCM Inside the DCM Network services Serial port servicesSee .4, Connecting to a local network for full details Installing the CMG-DCM Power supplyOverview Connecting over a serial link Connecting to a single computer192.168.0.x Connecting over EthernetConnecting over USB Using an internal modemConnecting to a local network Gcfgdbset option-namenew-value Connecting to the Internet Wi-FiSetting up the CMG-DCM Connecting digitizers and external hardwareWeb setup Setting up digitizers Using Scream Usage General notesDCM as a data store Gnblocks port-number Page CMG-DCM DCM as a GCF data source Accessing the DCM command line through gcfout Sensor arrays DCM as a network data hub Communicating with digitizers Configuring digitizers Data storage and retrieval Using miniSEED format Real-time data transmission CD1.0 and CD1.1 Troubleshooting DCM installations Cannot see the DCMs Web site over Http or Https Cannot connect to the DCMs Scream! serverCannot Gcfping the DCMs Scream! server DCM is not receiving any data streams Can Gcfping the DCMs Scream! server, but no data appearsDCM is receiving streams, but they do not contain any data Use the Serial port configuration → port name Web page, or143032 up 34 min, load average 1.24, 1.32 General Configuration optionsDisk CMG-DCM Serial port configuration CMG-DCM Page Ethernet port Network configurationStatic routes DNS setup Incoming mail setup Outgoing mail setup Remote access Administrators PPP Mgetty Scream Data transferAutoDRM Scream! ClientHttp server Http clientCD1.0 CD1.1 CD1.1 subframe configuration DSS Server configuration Seed Page CMG-DCM Data Viewer ActionsStream list Icon barDigitizer Setup General digitizer settings Digitizer output control CMG-DCM Trigger criteria CMG-DCM Tap # Rate Bandwidth Samples/s Auxiliary Mux channels Sensor mass control Flush flash Disk toolsPartition, and format disk Check disk filesystemDisk files CameraRecent Log Entries Summary Network configurationData Out Port, Serial Port A, Serial Port B DNS configurationFlash Status Tamper linesDisk Status Software Versions Inside the DCM File systems CMG-DCM Command line tools Configuration Digitizer console access Data flow MonitoringDigitizer status Tamper lines Removing support packages Updating the DCMOver the Internet From the hard diskFirmware Libgconfigdb Data OUT port Appendix a Connector pinoutsAppendix A.1 Modular DCM units Port a and BNetwork connector USB connectorDM/AM module output Appendix A.2 Integrated DCM unitsAppendix B.1 Sensor response codes Appendix B Sensor and digitizer typesDigitizer Appendix B.2 Digitizer type codes