Who should attend: System and network administrators who will implement or maintain a firewall; site managers charged with selecting and setting site security requirements.

What you will learn: The ins and outs of connecting to the Internet using firewalls.

Connecting to the Internet is an exciting event for every organization, but the security implications can often cause hesitation. You will hear about the problems and solutions sur round ing interconnection and security of functional intracompany and internetwork con nec tions using firewalls. You will learn about the differences between packet filtering and proxy firewalls. In addition, there will be details and examples of bastion host security using UNIX, and Internet gateway connectivity issues, including Sendmail and Domain Name System (DNS) configurations for your fire walled site. The tutorial concludes with a complete example Internet firewall configuration.

Tina Darmohray is a consultant in the area of Internet firewalls and network connections. She has over a decade of experience managing and networking UNIX systems. Previously, she was the lead for the UNIX Systems Admin is tra tion team at a large national laboratory. She was a founding board member of SAGE and edits the SAGE section of ;login:.

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