Most ISPs provide software that will
filter out the worst of this email.
[
en
INTROCOMP
]
If no virus is detected, the transfer proceeds; only files containing a virus are
filtered.
[
en
COMER
]
Firewalls can
filter packets at several different levels. They can look at IP addresses and block traffic coming from certain IP addresses or
networks, check the TCP header and determine its state, and at higher levels they can look at the application or TCP/UDP port
number.
[
enFIREWALLS ]
MEP MCLH
16/03/2011
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Some search engines allow you to
filter out pages that may lead to pornographic web sites or sites with content that might be considered offensive to some people.
[
en
SEARCHASS
]
Access lists are normally used to
filter traffic at the packet level.
[
enSECURITY OVERVIEW ]
Use at least Cisco version 9.21 so you can
filter incoming packets and check for address spoofing.
[
en
FIREWALL
]
MCLH
16/03/2011
|
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