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Network configuration, Dns configuration – Guralp Systems CMG-DCM User Manual

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Operator's guide

3 open (never) Wed Jul 7 16:04:48 2004

4 open (never) Wed Jul 7 16:04:48 2004

5 closed Wed Jul 7 16:04:48 2004 (never)

6 open (never) Wed Jul 7 16:04:48 2004

7 closed Wed Jul 7 16:04:48 2004 (never)

8 closed Wed Jul 7 16:04:48 2004 (never)

9 closed (never) (never)

10 closed (never) (never)

11 closed (never) (never)

12 closed (never) (never)

13 closed (never) (never)

14 closed (never) (never)

15 closed (never) (never)

The columns in the table give, in turn, the current state of each switch

and when it was last observed to be in each state. The above example
shows a typical reading for a set of 9 tamper switches that have not

triggered: the normally-closed switches show the current time under
“Last Closed”, and the normally-open switches under “Last Open”. All

other fields show (never), indicating that no switches have been

observed in the “wrong” state since the DCM was last booted.

Network configuration

This section displays basic information about the DCM's network

setup. It is identical to the output from the Linux ifconfig program.

A typical reading might look like this:

eth0 Link encap:Ethernet HWaddr 00:D0:1F:34:EB:08

inet addr:192.168.0.46 Bcast:192.168.0.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:3619 errors:0 dropped:0 overruns:0 frame:0

TX packets:2453 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:100

RX bytes:290005 (283.2 kb) TX bytes:417231 (407.4 kb)

Interrupt:42 Base address:0x8300

For further information, see the Linux manual page for ifconfig.

DNS configuration

This section reports the current status of the DCM's domain name

resolution service. This is done by presenting the contents of the
standard Linux /etc/resolv.conf file.

# eth0 begin

domain guralp.local

nameserver 192.168.0.1

nameserver 192.168.0.2

# eth0 end

For further information, see the Linux manual page for resolv.conf.

December 2006

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