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Ji <br />Elk River ^~-~ <br />Municipal Utilities <br />13069 Orono Parkway <br />Elk River, MN 55330 <br />Apri14, 2006 <br />To: Elk River Municipal Utilities commission <br />Jerry Takle <br />Jim Tralle <br />John Dietz <br />From: Theresa Slominski <br />Re: Internet Access <br />phone: 763.441.2020 <br />Fax: 763.441.8099 <br />Preliminary discussions were held with Bob Pearson, Bryan Adams, and Theresa <br />Slominski regarding email and internet access for all of Elk River Municipal Utilities <br />employees. Bob will be available at the meeting to discuss more and to address questions <br />but a summarization is presented here for your review. <br />Currently, we have two physically separate networks; computers on the one network have <br />complete and unrestricted Internet and email access. Bryan, Theresa and two other <br />machines in the office are on this unrestricted network. The other network is isolated <br />from the Internet and email. All other office computers and the utility billing server are <br />on the isolated network. The reasoning behind the isolated network was to have complete <br />assurances that the billing server would never be exposed to Internet related security <br />risks. <br />Bob made the following recommendations: <br />1. Combine the two internal utility networks. <br />2. Connect the utility network to the City network with a router that has an access <br />control list (ACL) configured as follows: <br />a. Allow all users on the utility network to access a mailbox on the Cities <br />email server. <br />b. Allow the computers that were on the unrestricted network to access the <br />Internet. <br />c. Deny all traffic that originates outside of the utility network access to the <br />Utility network. <br />3. We would eliminate the utilities current Internet connection. <br />