Configuring the Domain Name Server (DNS)

HP OpenCall SS7 supports systems using DNS-based name/address resolution provided that:

The file /etc/host still contains the primary name/address resolution scheme, that is, the file /etc/nsswitch exists and contains the following entry:
hosts: files dns <more>
where <more> stands for additional resolution schemes. See nsswitch.conf for the list of addition resolution schemes.
Additional resolution schemes:
On Linux any name/address resolution scheme is supported, provided that the Name Service Caching Daemon nscd is installed, properly configured and started.
See ncsd.conf for details.
This sample section from the file /etc/ncsc.conf configures host name / address resolution caching:
enable-cache positive-time-to-live negative-time-to-live
suggested size
check-files hosts
hosts
hosts
hosts
hosts yes
3600
20
211
yes
The OC administrator must also activate ncsd on Linux, when the DNS being used is not on the same physical LAN as the HP OpenCall SS7 system and is not dedicated to OpenCall DNS traffic.
The system name returned by uname -n must not be on the Fully Qualified Domain Name (FQDN)i:
$ uname -n tarifal $ uname -n toto.grenoble.hp.com
(GOOD)

(BAD)

Technical documentation