How to configure ASA to allow traffic from internal host to go to internet bypassing the CSC Module

How to configure ASA5510  to allow traffic from internal host to go to internetwithout being scanned by the CSC Module
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In general you simply define a service policy for the CSC that explicitly prevents the traffic for that internal host from going to the CSC module for scanning.

In practice, those service policies usually show up as an access-list in command line, so your fix would look like this:
access-list csc_out deny ip host any
access-list csc_out permit tcp any eq 21
access-list csc_out deny tcp eq 80
access-list csc_out permit tcp any eq 80
access-list csc_out permit tcp any eq 110

class-map csc_outbound_class
     match access-list csc_out

policy-map csc_out_policy
     class csc_outbound_class
     csc fail-close
     service-policy csc_out_policy interface inside

The deny statement at the beginning here would exempt from going to the CSC module for being scanned.

For further information, take a look here:

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uncheck CSC inspection from GUI, in CSC module.
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