nmap -O engagethis.com

Starting Nmap 4.20 ( http://insecure.org ) at 2007-01-26 20:33 PST
Interesting ports on apache2-jolly.saltine.dreamhost.com (208.97.151.67):
Not shown: 1680 closed ports
PORT     STATE    SERVICE
21/tcp   open     ftp
22/tcp   open     ssh
23/tcp   open     telnet
25/tcp   open     smtp
80/tcp   open     http
111/tcp  filtered rpcbind
113/tcp  open     auth
135/tcp  filtered msrpc
136/tcp  filtered profile
137/tcp  filtered netbios-ns
138/tcp  filtered netbios-dgm
139/tcp  filtered netbios-ssn
445/tcp  filtered microsoft-ds
548/tcp  open     afpovertcp
587/tcp  open     submission
872/tcp  open     unknown
1720/tcp filtered H.323/Q.931
Device type: general purpose|VoIP gateway|security-misc|WAP|storage-misc|broadband router
Running (JUST GUESSING) : Linux 2.4.X|2.6.X (96%), Occam embedded (93%), Aladdin Linux 2.4.X (91%), Linksys Linux 2.4.X (91%), Asus Linux 2.4.X (91%), Maxtor Linux 2.4.X (91%), Netgear embedded (91%), Siemens linux (90%)
Aggressive OS guesses: Linux 2.4.31 w/grsec (x86) (96%), Linux 2.4.33 (96%), Linux 2.4.32 (x86) (93%), Occam ONT ON2342 Voice/Video over IP box (93%), Aladdin eSafe security gateway (runs Linux 2.4.21) (91%), Linux 2.4.20 - 2.4.32, Linux-based embedded device (Linksys WRT54GL WAP, Buffalo AirStation WLA-G54 WAP, Maxtor Shared Storage Drive, or Asus Wireless Storage Router) (91%), Netgear DG834 or DG834G (wireless) DSL Router (91%), Linux 2.6.15-27-686 (Ubuntu Dapper, X86) (91%), Linux 2.6.9-42.(x86, SMP) (91%), Linksys WRT54GS WAP (Linux kernel) (90%)
No exact OS matches for host (test conditions non-ideal).
Uptime: 7.495 days (since Fri Jan 19 08:42:11 2007)
Network Distance: 15 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 26.958 seconds