[cobalt-security] nmap temporarily down the server

[Siao Yuan Tan <sy.tan@xxxxxxxxxx>]

Has anyone try doing a nmap port scanning to the Cobalt Raq4 server.  I try 
nmapping my own Raq4 server from a Linux box and get no response from the 
nmap program and the server hang as well until I stop the nmap process on 
my workstation.

If I install nmap on the Raq4 server, I can do a nmap localhost wihtout a 
hitch.  But when nmap is run from other Linux machine, the Raq4 will 
temporarily hang.  I can't access the server web admin site, virtual site, 
ssh, ftp, telnet, everything is down until I press Ctrl-C or Ctrl-Z on the 
Linux workstation.

Please, anyone, help...this is a big secuirty issue if some hacker simply 
run nmap non stop on the server.

Siao Yuan Tan
Senior Development Engineer
PDX Computers Sdn Bhd