MPF blocking works, but windowsupdate and some other sites are down or unstable

Hi,

I have a ASA with the configuration below to block 3 domains. This blocking works fine, and for some time I thought everything was great.

But then I realized that some websites was down or unstable ex: windows update. If I disable the configuration with: no service-policy inside-policy interface inside

Everything comes back to life... am I doing something wrong?

//Cosmic

regex domainlist1 "\.dating\.dk" regex domainlist2 "\.facebook\.dk" regex domainlist3 "\.facebook\.com"

access-list inside_mpc extended permit tcp any any eq www access-list inside_mpc extended permit tcp any any eq 8080

class-map type regex match-any DomainBlockList match regex domainlist1 match regex domainlist2 match regex domainlist3

class-map type inspect http match-all BlockDomainsClass match request header host regex class DomainBlockList class-map inspection_default match default-inspection-traffic class-map httptraffic match access-list inside_mpc ! policy-map type inspect http http_inspection_policy parameters protocol-violation action drop-connection match request method connect drop-connection log class BlockDomainsClass reset log

policy-map inside-policy class httptraffic inspect http http_inspection_policy! service-policy inside-policy interface inside

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Posted 5 years ago by M in Cisco Systems

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