Highly Available HP-UX Internet Services (May 2008)

# mv /etc/named.conf /var/opt/dns/

4. To create a symbolic link from /etc/named.conf to the shared volume file, enter

the following command:

# ln -s /var/opt/dns/named.conf /etc/named.conf

5. To move all the database files (db.*) to the shared volume and to create symbolic

links in the original location, enter the following commands:

# mv /etc/named.data/db.* /var/opt/dns/

# ln -s /var/opt/dns/db.* /etc/named.data/

Steps 3–5 ensure that all the configuration files are in sync across the cluster.

IMPORTANT: Consider the following points while configuring DNS with HP

ServiceGuard:

• Do not explicitly start the DNS server daemon using the rc startup script. You

must always start the DNS server through HP ServiceGuard. Ensure that the

following entry exists in the /etc/rc.config.d/namesvrs file:

NAMED=0

• Ensure that the value of the NAMED and NAMED_ARGS variables are the same across

all the nodes in the cluster configured to run the DNS Server.

The DNS HP ServiceGuard scripts recognize the NAMED_ARGS variable in

/etc/rc.config.d/namesvrs file. Therefore, use the NAMED_ARGS variable

to provide any command-line arguments for starting the DNS server.

On HP–UX 11i v3 systems, the variables to start the DNS server are available in

the /etc/rc.config.d/namesvrs_dns file.

Configuring Sendmail with HP ServiceGuard

Similar to the HP ServiceGuard scripts for DNS, the Sendmail HP ServiceGuard scripts

monitor and start/stop the Sendmail process depending on the values defined in the

Sendmail configuration files and variables. This section discusses the HP ServiceGuard

monitor and start/stop script for Sendmail. It also discusses the procedure to integrate

HP ServiceGuard with Sendmail.

Sendmail 8.13.3 is the latest version of Sendmail available in the HP-UX 11i v2 operating

system. It is available as a web upgrade at:

http://www.software.hp.com

Sendmail 8.11.1 is available as part of the core HP-UX 11i v2 operating. For the HP-UX

11i v3 operating system, Sendmail 8.13.3 is available as part of the core operating system.

For information on configuring and administering Sendmail, see HP-UX Mailing Services

Administrator's Guide at:

http://docs.hp.com/en/netcom.html#Internet%20Services