hi,

I am testing a mail server. From my local Linux
machine
when i run "telnet myserver.com 25" it works fine.

But when I run "nmap -p 25 myserver.com" it says:

Note: Host seems down. If it is really up, but
blocking our ping probes, try -P0 Nmap run completed
--1 IP address (0 hosts up) scanned in 42 seconds

I also tried running nmap with -P0 option but still it
fails to detect that 25 remote port!

I know there is a NOKIA IP350 firewall in between and
that is the only possible reason to block my port
scans.

But then my question is how does that firewall knows
that I am doing a port scan and not a normal telnet to
port 25 of my mails server? And is there anyway to put
my nmap port scans through ??

Please guide

thanks in advance.

--vaibhav


__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free web site building tool. Try it!
http://webhosting.yahoo.com/ps/sb/


-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
linux-india-help mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/linux-india-help

Reply via email to