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Hi, i have one centos 4.3 box, exposed to the internet. since several weeks ago, i found numerous attemps to connect through SSH, but failed. they tried with many username, including root. it's comes from different IP. some of them are foreign website. How do i make my centos become smarter in handling this kind of attacks. eventhough i've disable all the user accounts, left only the

Hi, Sory to bother you with my new-user questions. i've got one redhat 9 box, acting as email server using sendmail. it use local /etc/passwd. last week i've just finished setting up a server, centos 4.4 as a replacement mail server for the red hat 9. i mainly refereing the tutorial at http://www.howtoforge.com/virtual_users_postfix_courier_mailscanner_clamav_centos. with some