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how to run a vulnerability test on a domain

HELLO,

i want to run some tests and expose the vulnerabilities of our domain from the internet. We dont want to install any tools yet on our servers but we can install any tool needed or run anything from the internet against out domain.
I would like to see if there is any way someone from the internet to see servers on our domain, or connect , or see if we have any ports open , or if anybody from the internet can see if we have ports open..etc
are there any tools or sites i can run these programs or tools ?

i run a re[port from the http://www.dnsreport.com/  which is really nice...

is there anything else ? (it is very important to us)

thanks.
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c_hockland
Asked:
c_hockland
1 Solution
 
mahe2000Commented:
you can run nmap (port mapper) or nessus (vulnerability checks) if you want, that will help you and they have good reports. you will need a pc outside your network with this two tools to run them.
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c_hocklandAuthor Commented:
note :  the "target" network is Windows 2003 based
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Here2HelpCommented:
Hey,

Maybe the Microsoft Baseline Security Analyzer can help.

http://www.microsoft.com/technet/security/tools/mbsa2/default.mspx
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paradoxengineCommented:
MBSA2 will just tell you some basic informations. I agree with mahe: the tools of the trade are nessus and nmap, if you want to stay on the freeware side of the moon.
If you want some commercial tools, best in my opinions are CoreImpact and Retina.

Some examples:
nmap -n -A -P0 -p- -T Agressive -iL nmap.targetlist -oX nmap.syn.results.xml
nmap -sU -P0 -v -O -p 1-30000 -T polite -iL nmap.targetlist > nmap.udp.results
nmap -sV -P0 -v -p 21,22,23,25,53,80,443,161 -iL nmap.targets > nmap.version.results


These examples come from http://www.vulnerabilityassessment.co.uk/Penetration%20Test.html . You may find this site interesting.
Anyway, if you are really concerned about your security you should hire some security consultants, since doing it yourself might leave you with the wrong assumption you're safe. A professional pentest or security assessment is more than "a run of nessus" :D
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deaditeCommented:
In additon to MBSA and nmap, you can use tenable newt which can scan a class C network for free.  This will tell you known vulnerabilities and open ports:
http://www.tenablesecurity.com/products/newt.shtml

MBSA is good for checking for passwords and security patches

Symantec offers a free online scan of your system here(individual only):
http://security.symantec.com/

If you are looking more into an Intrusion Detection System IDS) check out SNORT:
http://www.snort.org/

Here is a decent whitepaper from Verisign that outlines some important steps for vulnerability testing:
https://www.verisign.com.au/guide/mss/vulnerabilitytest.pdf

CERT - Has all the info you'll ever need on security, tools, documents on how to secure systems etc
http://www.cert.org/

HERE ARE SOME CERT RECOMMENDATIONS FOR SCANNING
SiLK
http://silktools.sourceforge.net/

AirCERT
http://aircert.sourceforge.net/

OCTAVE:
http://www.cert.org/octave/

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