This disclosure describes techniques for providing a distributed scalable architecture for Network Address Translation (NAT) systems with high availability and mitigations for flow breakage during failover events. The NAT servers may include functionality to serve as fast-path servers and/or slow-path servers. A fast-path server may include a NAT worker that includes a cache of NAT mappings to perform stateful network address translation and to forward packets with minimal latency. A slow-path server may include a mapping server that creates new NAT mappings, depreciates old ones, and answers NAT worker state requests. The NAT system may use virtual mapping servers (VMSs) running on primary physical servers with state duplicated VMSs on different physical failover servers. Additionally, the NAT servers may implement failover solutions for dynamically allocated routeable address/port pairs assigned to new sessions by assigning new outbound address/port pairs when a session starts and broadcasting pairing information.

The technology disclosed relates to detection and resolution of conflicts between requested internet services and package of internet services associated with a domain. The method disclosed includes receiving a request from a client to add a requested internet service to a package of internet services. The method includes searching a domain name system (DNS) database for DNS records or a DNS server for external domains having attribute fields indicating attributes of the internet services in the package of internet services. The method includes comparing attributes of the requested internet service to attribute fields for the internet services in the package of internet services using a set of conflict definitions to identify attributes of the internet service requested conflicting with attributes of the package of internet services. When conflicting attributes are identified, the method includes invoking a resolution process to resolve the conflict.

Systems, methods, and apparatus to monitor mobile Internet activity are disclosed. An example apparatus includes at least one memory, machine-readable instructions, programmable circuitry to execute the machine-readable instructions to at least assign a first port of a proxy server to a mobile device associated with a panelist, cause transmission of configuration data to the mobile device to instruct the mobile device to transmit future requests the first port of the proxy server, obtain a first request for media on the first port originating from the mobile device, and after a determination that the first request originated from an Internet Protocol (IP) address associated with an IP address range representative of devices on a cellular network, service the first request, generate a data association, request the media from an Internet media provider identified in the first request, and cause transmission of the media to the mobile device.