1.http://www.faqs.org/docs/securing/index.html - sendmail
255.255.252.0---主机个数 (256-252)*256=1024-2=1022
script:
if [ -n "$ACTIVE" ] && [ "$ACTIVE" == "true" ] ; then
bigpipe config sync all > /dev/null 2>&1
#bigpipe config sync all
else
echo "$0: we are the inactive node"
fi
exit $?
"perl -pi -e 's/10.7.180.*/10.7.180.209/g' /etc/sysconfig/network; cat /etc/sysconfig/network"
sed -n
-e edit
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