Minicom Advanced Systems CMG-DCM manual Administrators

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CMG-DCM

Administrators

Users of the DCM can be one of two kinds.

•Unprivileged users can log in or view the Web interface of the DCM, including its current configuration, but cannot change any of the options, nor configure any instruments attached to the DCM

•Administrators may change settings or configure attached digitizers as they please.

You may want to give different users separate accounts for tracking or other purposes, or to allow users to set their own preferences when logging in. Alternatively, you may prefer to restrict access only to those with administrative requirements, by removing any unprivileged user accounts. If you want to access the DCM by any means, locally or remotely, you must have a username and password on the list given here.

If this is the first time you have logged in to the DCM, there will be a single user, root, whose password is factory-set. To add a new user, fill in their username and password in the top two boxes of the page. Repeat the password in the next box, to ensure it is entered correctly (since it will not be visible on screen), and click on Add user. A username may not contain spaces or colons.

You should be shown an acknowledgement screen, indicating that the new user account has been created. The user will be able to log in with that username and password by any of the methods currently available to the device, and from any location. More complex access controls cannot be performed through the Web administration system, although you can of course use the features of the DCM's underlying Linux operating system to implement them if required.

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Contents CMG-DCM Table of Contents December Inside the DCM Introduction CMG-DCM Inside the DCM Serial port services Network servicesSee .4, Connecting to a local network for full details Power supply Installing the CMG-DCMOverview Connecting to a single computer Connecting over a serial linkConnecting over Ethernet 192.168.0.xUsing an internal modem Connecting over USBConnecting to a local network Gcfgdbset option-namenew-value Wi-Fi Connecting to the InternetConnecting digitizers and external hardware Setting up the CMG-DCMWeb setup Setting up digitizers Using Scream General notes UsageDCM 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 connect to the DCMs Scream! server Cannot see the DCMs Web site over Http or HttpsCannot Gcfping the DCMs Scream! server Can Gcfping the DCMs Scream! server, but no data appears DCM is not receiving any data streamsUse the Serial port configuration → port name Web page, or DCM is receiving streams, but they do not contain any data143032 up 34 min, load average 1.24, 1.32 Configuration options GeneralDisk CMG-DCM Serial port configuration CMG-DCM Page Network configuration Ethernet portStatic routes DNS setup Incoming mail setup Outgoing mail setup Remote access Administrators PPP Mgetty Data transfer ScreamScream! Client AutoDRMHttp client Http serverCD1.0 CD1.1 CD1.1 subframe configuration DSS Server configuration Seed Page CMG-DCM Actions Data ViewerIcon bar Stream listDigitizer Setup General digitizer settings Digitizer output control CMG-DCM Trigger criteria CMG-DCM Tap # Rate Bandwidth Samples/s Auxiliary Mux channels Sensor mass control Disk tools Partition, and format diskCheck disk filesystem Flush flashCamera Disk filesRecent Log Entries Network configuration SummaryDNS configuration Data Out Port, Serial Port A, Serial Port BTamper lines Flash StatusDisk Status Software Versions Inside the DCM File systems CMG-DCM Command line tools Configuration Digitizer console access Monitoring Data flowDigitizer status Tamper lines Updating the DCM Over the InternetFrom the hard disk Removing support packagesFirmware Libgconfigdb Appendix a Connector pinouts Appendix A.1 Modular DCM unitsPort a and B Data OUT portUSB connector Network connectorAppendix A.2 Integrated DCM units DM/AM module outputAppendix B Sensor and digitizer types Appendix B.1 Sensor response codesAppendix B.2 Digitizer type codes Digitizer