12-20-2004 11:24 PM - edited 02-20-2020 11:49 PM
Hi all ,
I config the acl in my PIX now , how can i know no another port is open ? have any software can ping 1-65536 port status?
pls advise , thx
Stanley
12-21-2004 12:41 AM
Stanley,
Goto www.grc.com and try 'ShieldsUP', this will probe your pix to check for any open ports and will give you a report. You can also make your pix invisible to the outside world or any port scanners by applying: icmp deny any outside - do this after you have tested with 'ShieldsUP'.
Hope this helps and let me know how you get on, pls rate this post if it helps you as others maybe looking for a similar answer.
Jay
12-21-2004 06:29 AM
Hi Jay ,
I visit your suggest site , but i found that only can scan the port up to 64 , have any advise ? thx
Stanley
12-21-2004 06:37 AM
Why not use NMAP, it's open source and free and runs and many platforms including Windows
HTH
PD
12-21-2004 07:06 AM
Hi PD ,
I download it the nmap , but what command can scan the IP with the port range?
Stanley
12-21-2004 06:48 AM
Stanley,
If you click onto the 'All Service Port' buton this will scan up 1056 ports.
Jay
PS. You can also use NMAP as the other post suggested.
12-21-2004 07:08 AM
Hi Jay ,
Thanks for your advise , but i want scan all ports .
Stanley
12-21-2004 07:32 AM
try
nmap -p T:1-,U:1- -v
PD
12-21-2004 08:46 AM
Hi PD ,
i got the error message :
C:\1>nmap -P0 -p T:1-,U:1- -v www.yahoo.com
Starting nmap 3.75 ( http://www.insecure.org/nmap ) at 2004-12-22 00:32 中國標準
時間
Initiating SYN Stealth Scan against p16.www.scd.yahoo.com (66.94.230.47) [65535
ports] at 00:32
SYN Stealth Scan Timing: About 0.31% done; ETC: 04:14 (3:41:11 remaining)
after only wait long no feed back , what error?
Stanley
12-21-2004 10:02 AM
You did not enter a port to scan. Entering T:4,U:4 will scan much faster but you may lose some data depending on the network.
To scan the entire range you may want to scan with T5,U5. This may set off any IDS's you have.
nmap -sS -P0 -p 1-65535 -T5 host.
Use -v or -vv only if you need additional info.
C:\nmap-3.50>nmap -P0 -T4,U4 -p 80 www.yahoo.com
Starting nmap 3.50 ( http://www.insecure.org/nmap ) at 2004-12-21 11:56 Central Standard Time
Interesting ports on p21.www.re2.yahoo.com (68.142.226.52):
PORT STATE SERVICE
80/tcp filtered http
Nmap run completed -- 1 IP address (1 host up) scanned in 3.095 seconds
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