step 01 : system update
step 02 : securing compilers
step 03 : securing partitions
step 04 : securing services
step 05 : securing ports
step 06 : securing php and cgi
step 07 : securing install-defaults
step 08 : firewall implementation
step 09 : monitoring
http://admin0.info/articles/security/introduction.html

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. Dan vind ik "securing ports" wel erg kort door de bocht, omdat je hier aan zoveel kan denken : Monitoring (step 09), ACL's, firewalls, services securen (step 04), enz.
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