- if hostname "$HOSTNAME" 1>/dev/null 2>${TMP} ; then
- echo "$HOSTNAME" > /etc/hostname
- sed -i "s/^127.0.0.1[ \t]*$OLDHOSTNAME[ \t]*localhost/127.0.0.1 $HOSTNAME localhost/" /etc/hosts
- sed -i "s/^::1[ \t]*ip6-localhost ip6-loopback[ \t]*$OLDHOSTNAME/::1 ip6-localhost ip6-loopback $HOSTNAME/" /etc/hosts
- POSTFIX=''
- if [ -r /etc/postfix/main.cf ] ; then
- sed -i "s/^myhostname = .*/myhostname = $HOSTNAME/" /etc/postfix/main.cf && POSTFIX='
+ echo "$NEW_HOSTNAME" > /etc/hostname
+ echo "$NEW_HOSTNAME" > /etc/mailname
+ sed -ir "s/^\(127.0.0.1\s*\).*localhost.*/\1$NEW_HOSTNAME localhost/" /etc/hosts
+ sed -ir "s/^\(::1\s*\).*ip6-localhost.*/\1ip6-localhost ip6-loopback $NEW_HOSTNAME/" /etc/hosts
+
+ POSTFIX=''
+ if [ -r /etc/postfix/main.cf ] ; then
+ sed -i "s/^mydestination = .*/mydestination = $NEW_HOSTNAME, localhost, localhost.localdomain/" /etc/postfix/main.cf && \
+ sed -i "s/^myhostname = .*/myhostname = $NEW_HOSTNAME/" /etc/postfix/main.cf && POSTFIX='