CMG-DCM / AM - Güralp Systems Limited

CMG-DCM Data Communications Module
to the beginning of the file.
13.Restart the CD1.1 transmitter with the command killall
-HUP cd11sf. (Using the -HUP option makes the command
send a hangup signal to the CD1.1 transmitter rather than killing
it outright.)
Software authentication
Some AM units are not supplied with hardware crypto-tokens. These
units can still perform authentication using the openssl package. To
set up an AM using openssl:
1. Change into the CD1.1 transmitter's configuration directory
using
cd /etc/libcd11
2. Generate the DSA parameters file with
openssl dsaparam -out slot01.prm key-length
where key-length is the size of the key you wish to be
generated (normally 1024.)
3. Generate the public and private keys with
openssl dsaparam -in slot01.prm -out slot01.key -genkey
4. Create a configuration file in the format
[req]
default_bits
= key-length
distinguished_name
= req_dn
[req_dn]
organizationName
= Enter organization name (eg,
company)
organizationName_value = organization-name
0.organizationalUnitName = Enter organizational unit
name (eg, section)
0.organizationalUnitName_value = organizational-unit-name
1.organizationalUnitName = Enter organizational unit
name (eg, section)
1.organizationalUnitName_value = organizational-unit-name
localityName
= Enter your station name
localityName_value
= station-name
commonName
= Enter your site name
commonName_value
= site-name
You should only replace the words highlighted like this in
the above file. The lines ending Enter your site name, etc.,
48 Issue F