db_nmap metasploit 3.0

[onedayillpay]

I have search the forums and found nothing so I hope i can get some tips
hxxp://blog.metasploit.com/2006/09/metasploit-30-automated-exploitation.html

I dont understand db_create so maybe if i could see some examples this could be the fix to my problem...

~metasploit 3.0 console~
msf > load db_postgres
[*] Successfully loaded plugin: db_postgres
>> db_connect
>> help
Command ---------- Description
db_add_host ------- Add one or more hosts to the database
db_nmap ----------- Executes nmap and records the output automatically
msf > db_nmap -P0 -p 445 192.168.254.2
Error-Error-Error-Error
~metasploit 3.0 console~

any time i try to db_add_host or db_nmap i get that long error, i hope i can get some help on this...

[onedayillpay]

I know my writing skills are bad... Can i get a reply

[thorin]

You loaded the postgres db driver, didn't create a DB, and then tried to connect to ______ ? Nothing.

Keep readin @ the link you provided it even tells you how to test the DB etc....

[onedayillpay]

Ok i have been doing alot of reading and looking around, I think i understand now... (please correct me) So you have to have a server running on a network such as Mysql or postgres befor you can connect to a database...But im not running any kind of sql server...

I can Host a private/public server that i use to play games with my little sister.
Would it be possible to connect to that database...

I would probably have to script a plugin, Right?