root@craptop:~# dnswalk virtualteen.org.
Checking virtualteen.org.
Getting zone transfer of virtualteen.org. from ns.dotservant.com...done.
SOA=ns.dotservant.com   contact=fweikeon.dotservant.com
WARN: calendar.virtualteen.org CNAME ghs.GOOGLE.com: CNAME (to ghs.l.GOOGLE.com)
WARN: docs.virtualteen.org CNAME ghs.GOOGLE.com: CNAME (to ghs.l.GOOGLE.com)
WARN: google.virtualteen.org CNAME ghs.GOOGLE.com: CNAME (to ghs.l.GOOGLE.com)
WARN: mail.virtualteen.org CNAME ghs.GOOGLE.com: CNAME (to ghs.l.GOOGLE.com)
WARN: www.mail.virtualteen.org CNAME ghs.GOOGLE.com: CNAME (to ghs.l.GOOGLE.com)
WARN: sites.virtualteen.org CNAME ghs.GOOGLE.com: CNAME (to ghs.l.GOOGLE.com)
0 failures, 6 warnings, 0 errors.
root@craptop:~# nmap -T2 -P0 virtualteen.org -O

Starting Nmap 4.20 ( http://insecure.org ) at 2008-04-12 20:30 EDT
Insufficient responses for TCP sequencing (0), OS detection may be less accurate
Insufficient responses for TCP sequencing (0), OS detection may be less accurate
Interesting ports on host25.dotservant.com (63.247.140.14):
Not shown: 1678 closed ports
PORT     STATE    SERVICE
1/tcp    open     tcpmux
21/tcp   open     ftp
22/tcp   open     ssh
25/tcp   filtered smtp
53/tcp   open     domain
80/tcp   open     http
110/tcp  open     pop3
111/tcp  open     rpcbind
139/tcp  filtered netbios-ssn
143/tcp  open     imap
443/tcp  open     https
445/tcp  filtered microsoft-ds
465/tcp  open     smtps
593/tcp  filtered http-rpc-epmap
631/tcp  open     ipp
993/tcp  open     imaps
995/tcp  open     pop3s
1040/tcp open     netsaint
3306/tcp open     mysql
Device type: general purpose|media device
Running (JUST GUESSING) : Linux 2.6.X|2.4.X (88%), OpenBSD 3.X (86%), Pace embedded (86%)
Aggressive OS guesses: Linux 2.6.5 - 2.6.11 (88%), OpenBSD 3.6 x86 with pf "scrub in all" (86%), Pace digital cable TV receiver (86%), Linux 2.4.18 - 2.4.27 (85%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 10 hops

OS detection performed. Please report any incorrect results at http://insecure.org/nmap/submit/ .
Nmap finished: 1 IP address (1 host up) scanned in 764.127 seconds
root@craptop:~#