วิธีการ Resolve เช็ค IP ทำโดย
nslookup <ชื่อ host>
วิธีการ ตรวจสอบ เจ้าของ IP ทำโดย
whois <หมายเลข IP>
เช่น
root@Ubuntu:~# nslookup cds721.lax.llnw.net
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
Name: cds721.lax.llnw.net
Address: 208.111.144.211
เมื่อได้ IP มาก็ทำการ Whois ดูครับ
root@Ubuntu:~# whois 208.111.144.211
OrgName: Limelight Networks, Inc.
OrgID: LLNW
Address: 2220 W. 14th Street
City: Tempe
StateProv: AZ
PostalCode: 85281
Country: US
ReferralServer: rwhois://rwhois.llnw.net:4321/
NetRange: 208.111.128.0 - 208.111.191.255
CIDR: 208.111.128.0/18
OriginAS: AS22822
NetName: LLNW-3
NetHandle: NET-208-111-128-0-1
Parent: NET-208-0-0-0-0
NetType: Direct Allocation
NameServer: DNS.LAX.LLNS.NET
NameServer: DNS.LGA.LLNS.NET
NameServer: DNS.SJC.LLNS.NET
NameServer: DNS.IAD.LLNS.NET
Comment: *** All abuse complaints must go to abuse (at)
Comment: limelightnetworks.com
Comment: Network reassignments available via rwhois.llnw.net:4321
RegDate: 2006-03-30
Updated: 2009-02-18
RAbuseHandle: LNAD-ARIN
RAbuseName: Limelight Networks Abuse Dept
RAbusePhone: +1-602-850-5095
RAbuseEmail: ipadmin@limelightnetworks.com
RTechHandle: LNAA-ARIN
RTechName: Limelight Networks ARIN Admin
RTechPhone: +1-602-850-5095
RTechEmail: arinadmin@limelightnetworks.com
OrgAbuseHandle: LNAD-ARIN
OrgAbuseName: Limelight Networks Abuse Dept
OrgAbusePhone: +1-602-850-5095
OrgAbuseEmail: ipadmin@limelightnetworks.com
OrgTechHandle: LNAA-ARIN
OrgTechName: Limelight Networks ARIN Admin
OrgTechPhone: +1-602-850-5095
OrgTechEmail: arinadmin@limelightnetworks.com
# ARIN WHOIS database, last updated 2009-04-08 19:10
# Enter ? for additional hints on searching ARIN's WHOIS database.
Found a referral to rwhois.llnw.net:4321.
%rwhois V-1.5:003eff:00 rwhois.llnw.net (by Network Solutions, Inc. V-1.5.9.6)
network:Class-Name:network
network:ID:208.111.144.0/24
network:Network-Name:NET-208-111-144-0-24
network:IP-Network:208.111.144.0/24
network:Auth-Area:208.111.128.0/18
network:Tkt-Req:none
network:Org-Name:Limelight Networks LAX CDN Network
network:Street-Address:2220 W. 14th Street
network:City:Tempe
network:State:AZ
network:Postal-Code:85281
network:Country-Code:US
network:Tech-Contact;I:ipadmin@llnw.com
network:Created:20070117
network:Updated:20070117
network:Updated-By:rwhois@llnw.com
%ok
จะทำให้เราทราบกลุ่มของ IP ชุดนี้ พร้อมกับผู้ที่ดูแล