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 From:  Michael Sierchio <kudzu at tenebras dot com>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] how to block youtube.com using monowall
 Date:  Wed, 06 Sep 2006 13:35:14 -0700
My List Mail wrote:
> thanks guys,
> i already blocked the youtube using firewall rule
> thanks :)
> how will i know the correct CIDR if it has bigger ip range address?

Oh, use whois, perhaps?  Which would give you the correct block

arf 223> whois

OrgName:    YouTube, Inc.
OrgID:      YOUTU
Address:    71 E Third Ave
Address:    2nd Floor
City:       San Mateo
StateProv:  CA
PostalCode: 94401
Country:    US

NetRange: -
NetName:    YOUTUBE
NetHandle:  NET-208-65-152-0-1
Parent:     NET-208-0-0-0-0
NetType:    Direct Assignment
RegDate:    2006-03-02
Updated:    2006-03-09

RTechHandle: NETWO1084-ARIN
RTechName:   networkradbaccount
RTechPhone:  +1-650-343-2960
RTechEmail:  radb at youtube dot com

OrgTechHandle: NETWO1084-ARIN
OrgTechName:   networkradbaccount
OrgTechPhone:  +1-650-343-2960
OrgTechEmail:  radb at youtube dot com

# ARIN WHOIS database, last updated 2006-09-05 19:55
# Enter ? for additional hints on searching ARIN's WHOIS database.