Hedef Sistem Hakkında Temel Bilgileri Toplama

Hedef sistem hakkında bilgi toplama istiyoruz ama iz bırakmamamız lazım.Bundan dolayı sisteme doğrudan girmek yerine dolaylı yollarla (whois) bilgi edinilebilir.

1)Whois Komutunun Kullanımı

root@bt:~# whois facebook.com
The Registry database contains ONLY .COM, .NET, .EDU domains andRegistrars.Domain Name: facebook.comRegistry Domain ID: Registrar WHOIS Server: whois.markmonitor.comRegistrar URL: http://www.markmonitor.comUpdated Date: 2013-06-06T04:00:37-0700Creation Date: 2010-04-01T11:56:37-0700Registrar Registration Expiration Date: 2020-03-29T21:00:00-0700Registrar: MarkMonitor, Inc.Registrar IANA ID: 292Registrar Abuse Contact Email: compliance@markmonitor.comRegistrar Abuse Contact Phone: +1.2083895740Domain Status: clientUpdateProhibitedDomain Status: clientTransferProhibitedDomain Status: clientDeleteProhibitedRegistry Registrant ID: Registrant Name: Domain AdministratorRegistrant Organization: Facebook, Inc.Registrant Street: 1601 Willow Road, Registrant City: Menlo ParkRegistrant State/Province: CARegistrant Postal Code: 94025Registrant Country: USRegistrant Phone: +1.6505434800Registrant Phone Ext: Registrant Fax: +1.6505434800Registrant Fax Ext: Registrant Email: domain@fb.comRegistry Admin ID: Admin Name: Domain AdministratorAdmin Organization: Facebook, Inc.Admin Street: 1601 Willow Road, Admin City: Menlo ParkAdmin State/Province: CAAdmin Postal Code: 94025Admin Country: USAdmin Phone: +1.6505434800Admin Phone Ext: Admin Fax: +1.6505434800Admin Fax Ext: Admin Email: domain@fb.comRegistry Tech ID: Tech Name: Domain AdministratorTech Organization: Facebook, Inc.Tech Street: 1601 Willow Road, Tech City: Menlo ParkTech State/Province: CATech Postal Code: 94025Tech Country: USTech Phone: +1.6505434800Tech Phone Ext: Tech Fax: +1.6505434800Tech Fax Ext: Tech Email: domain@fb.comName Server: a.ns.facebook.comName Server: b.ns.facebook.comURL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/>>> Last update of WHOIS database: 2014-03-02T05:44:22-0800 <<<

2)Whois ile IP adres aralığı belirleme

root@bt:~# ping facebook.com
PING facebook.com (173.252.110.27) 56(84) bytes of data.
64 bytes from edge-star-shv-13-frc1.facebook.com (173.252.110.27): icmp_seq=1 ttl=128 time=202 ms
64 bytes from edge-star-shv-13-frc1.facebook.com (173.252.110.27): icmp_seq=2 ttl=128 time=201 ms
^C
--- facebook.com ping statistics ---
3 packets transmitted, 2 received, 33% packet loss, time 2001ms
rtt min/avg/max/mdev = 201.955/202.167/202.379/0.212 ms