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hI,<br />
Setting up a DMZ (Internet-ASA-DMZ-ASA-LAN)<wbr /> as we are looking allow external access. (The DMZ will only host an SMTP relay server and some mail content inspection boxes at this point.)<br />
Usres will use SSL VPN (Cisic ASA) to access some web based apps on the LAN and probabaly ACS radius (or TACACS+) for AAA against a W2003 AD.<br />
I belive the ACS is installed on a windows server but I believe the server must be a member of the AD.<br />
So in that respect, in terms of device placement, I believe that the internt connects to external ASA interface, the ACS box sits in the internal lan as a domain member (?), so the ASA must communicate some how with the ACS box over a particular port (?).<br />
On the right track here? Thanks<br />

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hI,
Setting up a DMZ (Internet-ASA-DMZ-ASA-LAN) as we are looking allow external access. (The DMZ will only host an SMTP relay server and some mail content inspection boxes at this point.)
Usres will use SSL VPN (Cisic ASA) to access some web based apps on the LAN and probabaly ACS radius (or TACACS+) for AAA against a W2003 AD.
I belive the ACS is installed on a windows server but I believe the server must be a member of the AD.
So in that respect, in terms of device placement, I believe that the internt connects to external ASA interface, the ACS box sits in the internal lan as a domain member (?), so the ASA must communicate some how with the ACS box over a particular port (?).
On the right track here? Thanks


RADIUS or TACACS+ Placement

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

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

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.