what is right ?

[payam]

Hello,

we run  Solaris 8  + DNS 8.2.2.5 .
What ist right ? :

1.

if [ -f /usr/sbin/in.named -a -f /etc/named.conf ]; then
        echo 'starting internet domain name server.'
        /usr/sbin/in.named &
fi
------------
2. or

if [ -f /usr/sbin/in.named -a -f /etc/named.conf ]; then
        echo "starting internet domain name server."
        /usr/local/sbin/named -b /etc/named.conf;
fi

--------------

3.or 

if [ -f /usr/local/sbin/named -a -f /etc/named.conf ]; then
        echo "starting internet domain name server."
        /usr/local/sbin/named -b /etc/named.conf;
fi


best  Regards

Payam