PREIN

/bin/sh

getent group mydns >/dev/null || groupadd -r mydns
getent passwd mydns >/dev/null || \
useradd -r -g mydns -d /var/lib/mydns  -s /sbin/nologin \
-c "MyDNS - database based DNS server account" mydns
exit 0

PREUN

/bin/sh

if [ $1 = 0 ]; then
    /sbin/install-info --delete /usr/share/info/mydns.info /usr/share/info/dir
    /sbin/service mydns stop >/dev/null 2>&1
    /sbin/chkconfig --del mydns
fi
exit 0

POSTIN

/bin/sh

/sbin/install-info /usr/share/info/mydns.info /usr/share/info/dir
/sbin/chkconfig --add mydns
exit 0