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TippingPoint (HP)<br />
SourceFire<br />
IBM ISS Proventia<br />
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They are all appliances, are expensive and you need to look at your requirements and features &nbsp;that each one provides to ensure it meets your needs.
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TippingPoint (HP)
SourceFire
IBM ISS Proventia

They are all appliances, are expensive and you need to look at your requirements and features  that each one provides to ensure it meets your needs.

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I am using IPS as opposed to IDS
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@gheist &nbsp; &nbsp;IPS and IDS are different and I am reconsidering using both. &nbsp;However, IPS appears to be embracing more and more IDS functionality but just isn't there yet. &nbsp;I'm currently looking at SO (Security Onion) as the IDS as well as a separate IPS. <br />
<a href="http://blogs.cisco.com/security/ids_and_ips/" rel="ugc">http://blogs.cisco.com/security/ids_and_ips/</a>&nbsp;<br />
<a href="http://www.networkworld.com/weblogs/security/005784.html" rel="ugc">http://www.networkworld.com/weblogs/security/005784.html</a>
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@gheist    IPS and IDS are different and I am reconsidering using both.  However, IPS appears to be embracing more and more IDS functionality but just isn't there yet.  I'm currently looking at SO (Security Onion) as the IDS as well as a separate IPS.
http://blogs.cisco.com/security/ids_and_ips/ [http://blogs.cisco.com/security/ids_and_ips/] 
http://www.networkworld.com/weblogs/security/005784.html [http://www.networkworld.com/weblogs/security/005784.html]

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Do you trust compromised IDS to D the I?
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You can Deploy complete monitoring software in you network which will audit your all severs like AD, Exchange and file server in order to get alert for any security breach with in a network
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You can Deploy complete monitoring software in you network which will audit your all severs like AD, Exchange and file server in order to get alert for any security breach with in a network

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I'm researching Intrusion Detection Software for an SBS 2011 server. &nbsp;Has anyone utilized a particular IDS for SBS 2011 for more than or close to a couple of years since SBS 2011's release successfully and if so, what brand and version? &nbsp;Thanks.
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I'm researching Intrusion Detection Software for an SBS 2011 server.  Has anyone utilized a particular IDS for SBS 2011 for more than or close to a couple of years since SBS 2011's release successfully and if so, what brand and version?  Thanks.

Intrusion Protection software recommendations...

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.

Security

Network security consists of the policies adopted to prevent and monitor authorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, and covers a variety of computer networks; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access.

Network Security

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.