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You would want do a port scan from the other side of your firewall. nmap is a popular program for this: <a href="http://www.insecure.org/nmap/" rel="ugc">http://www.insecure.org/nmap/</a><br />
<br />
You can also Google for &quot;linux port scan&quot; to find others.<br />

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You would want do a port scan from the other side of your firewall. nmap is a popular program for this: http://www.insecure.org/nmap/ [http://www.insecure.org/nmap/]

You can also Google for "linux port scan" to find others.


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How can I scan from the outside if I am on the inside ? &nbsp;<br />
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I need to telnet into something and hack back. <br />
<br />

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How can I scan from the outside if I am on the inside ?  

I need to telnet into something and hack back.



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r-k &nbsp;<br />
<br />
I clearly did not explain this very well. &nbsp;I was distracted at the time. <br />
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My home system has one IP and I am behind the firewall. &nbsp;I need to test the firewall from the &quot;front side&quot; because that is how others are going to test it. &nbsp;<br />
<br />

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r-k  

I clearly did not explain this very well.  I was distracted at the time.

My home system has one IP and I am behind the firewall.  I need to test the firewall from the "front side" because that is how others are going to test it.  



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You can not do better than that to answer this questions. &nbsp;This is just the greatest. &nbsp;<br />
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I just have a few things to shut down. 
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You can not do better than that to answer this questions.  This is just the greatest.  

I just have a few things to shut down.

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I want to check out my own security and I am a home linux user. &nbsp;<br />
<br />
is there somewhere I can get an account or how can I check the inbound firewall <br />
<br />
I would prefer not to spend much or any money 
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I want to check out my own security and I am a home linux user.  

is there somewhere I can get an account or how can I check the inbound firewall 

I would prefer not to spend much or any money 

One connection and I want to hack my own firewall

Software firewalls, also known as host-based firewalls, provide a layer of software on one host that controls network traffic in and out of that single machine. Most operating systems now include firewall software, but many available software firewalls include central distribution, antivirus systems and disaster recovery.

Software Firewalls

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.