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158 Lotus Security Handbook 7. Data Access to Data Access zone policies Table 4-7 Data Access to Data Access zone (Site-to-Site) Application Protocol Port DataAccess DataAccess Comments HTTP TCP 80 X X Inter-site Admin / XML Non-Confidential Data) HTTPS (SSL) TCP 443 X X Inter-site Admin / XML (Confidential Data) LDAP TCP 389 X X Master and Replicas (Non Confidential Data) LDAP (SSL) TCP 636 X X Master and Replicas (Confidential Data) Domino Replication TCP 1352 X X Master and Replicas (Non Confidential Data) H - host specific filters X - network filters 8. Data Access to Internet zone policies Table 4-8 Data Access to Internet zone flows (Outbound) - NAT/PAT Application Protocol Port DataAccess Internet Comments HTTP TCP 80 H X Via NAT/PAT on Data Access to Proxy firewall. HTTPS (SSL) TCP 443 H X Via NAT/PAT on Data Access to Proxy firewall. H - host specific filters X - network filters 9. Intranet to Internet zone policies The Intranet to Internet flow policies are data services that are not part of providing external access to internal resources, but are used for internal network clients accessing external resources. These are generally workstations in the Intranet zone that need to access external servers. Your policies may vary widely from what we allow within <strong>IBM</strong>. For example, some organizations only permit HTTP connections from their Intranet zone to a Proxy zone where a forward HTTP proxy resides. In this case, only the forward HTTP proxy would be permitted to connect on ports 80 and 443 to a resource in the Internet zone.
Table 4-9 is valid assuming there is no forward proxy requirement. Also note that more than a single firewall will be traversed in this flow, so the firewall interfaces referenced are not on the same firewall. Table 4-9 Intranet to Internet zone flows (Outbound) Application Protocol Port Intranet Internet Comments SMTP TCP 25 X X Corporate access of Internet SMTP resources. DNS UDP 53 X X Corporate access of Internet (public) DNS. HTTP TCP 80 X X Corporate access of Internet Web resources. HTTPS TCP 443 X X Corporate access of Internet Web resources. H - host specific filters X - network filters 4.3 Design validation We have now described three types of access models and our data flow rules. The last part of the secure architecture model is procedural. No matter how carefully we specify our zone placement guidelines and data flow rules, every design should be carefully analyzed and validated to ensure that it satisfies the security policy. This validation step should be mandated as part of your overall security policy. The data flows between our four different zone categories need to have some general rules that we can then use to determine both system placement and system connectivity requirements and options. In fact, we have two methods with which we can apply these data flow rules: 1. In the case of a new application system, we can use them to determine where each subsystem or component can reside. 2. In the case of an existing application system, we can determine if we can implement the required controls, or if some of the components need to be relocated to a different zone. We’ll look at the first of these scenarios in the next section. Chapter 4. Security components and layers 159
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478 Lotus Security Handbook databas
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Action name Description Change rout
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12.3 Domino Web Access (iNotes) 12.
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* Notes SDK include files */ #inclu
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} /*--- * filter termination */ uns
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*/ if (authData->userName && authDa
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goto NoUnlockExit; pLookup = (char
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* *********************************
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Hostname="localhost.dotnsf.com" Por
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Other publications Online resources
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and WebSphere Portal 622 benefits 2
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Lotus Security Handbook Key securit
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