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Network Security Management at Jesus College, Oxford John Ireland, IT Manager <email@example.com> Fitting Into Oxford Conference Council Committees Colleges Academic Administrative Divisions Departments Network Topology Physics MIS OUCS Jesus Coll. What Do We See? Avoiding and Detecting Trouble • Education of users – Induction talks for all new starts – Reminders by weekly email – Clear statement of usage policy (AUP) – Clear investigatory procedure, including penalties that may be imposed • Technology – Registration for network access: web scripts + dhcp – Firewalls (policy?): Linux iptables – Anti-virus software + updates Sophos CID – Windows Update links on web site – Traffic monitoring / network scanning iptables, NetBrute – Secure, well designed systems Switches, Linux, iptables,… – Physical network segmentation Approach for Internal Abuse • Penalties should mean that it is on the student’s record • Discussion is better than penalisation in terms of actually preventing further abuse: seeing a human being (even if it’s the network manager) reminds them that this is not a ‘pay-per view’ service • Get them on our side – one night of drunken stupidity doesn’t deserve revenge (or counter-revenge) • Recruit them as security evangelists: tell others A Final Thought What would you do if you track down an abuse and find that the miscreant is…. YOUR BOSS!
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