I got zenmap, just for the sake of lazyness(I usually do use cli's, but I started using it when still on windows, and meh)
Command: nmap -p 22 -T4 -A -v 192.168.15.244
PHP Code:
Starting Nmap 6.00 ( http://nmap.org ) at 2012-12-22 23:18 EST
NSE: Loaded 93 scripts for scanning.
NSE: Script Pre-scanning.
Initiating Ping Scan at 23:18
Scanning 192.168.15.244 [2 ports]
Completed Ping Scan at 23:18, 0.00s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 23:18
Completed Parallel DNS resolution of 1 host. at 23:18, 0.04s elapsed
Initiating Connect Scan at 23:18
Scanning 192.168.15.244 [1 port]
Completed Connect Scan at 23:18, 0.00s elapsed (1 total ports)
Initiating Service scan at 23:18
NSE: Script scanning 192.168.15.244.
Initiating NSE at 23:18
Completed NSE at 23:18, 0.00s elapsed
Nmap scan report for 192.168.15.244
Host is up (0.0015s latency).
PORT STATE SERVICE VERSION
22/tcp closed ssh
NSE: Script Post-scanning.
Read data files from: /usr/bin/../share/nmap
Service detection performed. Please report any incorrect results at http://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 0.29 seconds