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Assessment Title
Rule Text
The Infoblox system must prohibit or restrict unapproved services, ports, and protocols.
Description
Discussion Text
To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems.
Infoblox systems provide DNS, Dynamic Host Configuration Protocol (DHCP), and IP Address Management (DDI) services. Some of the functions and services provided may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., DNS and DHCP); however, doing so increases risk over limiting the services provided by any one component. This risk may be increased depending on placement in the network. Internal systems often provide DNS and DHCP; however, external systems or those in a DMZ provide only DNS.
Infoblox systems provide DNS, Dynamic Host Configuration Protocol (DHCP), and IP Address Management (DDI) services. Some of the functions and services provided may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., DNS and DHCP); however, doing so increases risk over limiting the services provided by any one component. This risk may be increased depending on placement in the network. Internal systems often provide DNS and DHCP; however, external systems or those in a DMZ provide only DNS.
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