Such as Android’s built-in APIs or popular third-party libraries, to connect toĪ host. Network logging records an event when an app calls standard network libraries, The value is the millisecond interval between the connection and midnight, JanuUTC. The package name of the app that connected.Ī timestamp recording when the network connection happened. The TCP port number the device connected to. This might be an IPv4 or an IPv6 address. Table 2 below describes the fieldsĪnd typical values recorded into a ConnectEvent. Network activity logging APIs present each connection as aĬonnectEvent instance. The logs capture successful and failed TCPĬonnections-UDP transfers aren't recorded. Network logging records an event for each attempted connection that's part of a Avoiding a DNS query by connecting to a fixed IP address.Calling a Java DNS library to make DNS queries.Communicating directly with a DNS name server.Here are some DNS tasks an app might do that aren't logged: While DNS lookups can help IT admins track network connections ( seeīelow), network logging isn't a general-purpose DNS recording
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Available in Android 9.0 (API level 28) or higher. The value is the millisecond interval between the DNS lookup and midnight, JanuUTC.Ī monotonically increasing numeric ID. The package name of the app that made the DNS query.Ī timestamp recording when the DNS lookup happened. A value of 0 (zero) means the hostname didn't resolve to an IP address. Use this to find out if the IP addresses logged are a subset of the results. The number of IP addresses returned from the DNS query resolution. To keep the log size manageable, the results might not include all the IP addresses-see address count below. Table 1 below describes the fields and typicalĪ list of IPv4 or IPv6 addresses the DNS query resolved for the hostname. Network activity logging APIs present each DNS lookup as aĭnsEvent instance. Other supporting DNS queries, such as name server discovery, aren't
The logs capture each DNS request that resolves a hostname to an IPĪddress. Network logging records an event for DNS lookups that are part of system network Network logging records two types of events: When network logging is active, Android records each event from apps using the OnUserAdded(), and affiliate the user or work profile. Listen for broadcasts or callbacks, such as Recommend that you affiliate new profiles as soon as your DPC or the device userĬreates them. While waiting for new users to becomeĪffiliated, the system discards logs once the internal buffer is full. Caution: Your DPC can't retrieve network logs if the device has any unaffiliated The users and profiles to enable network logging. If theĭevice has more than a single user, your DPC should affiliate The same organization manages all the users and profiles on the device. You can't use this feature from a work profile.īecause network logging records activity device-wide, it's only available when The admin component of a fully managed device (sometimes called a device owner)Ĭan log network activity. For example, you could set up DNS denylists to detect and alert ITĪdmins about suspicious behavior. You might want to process the logs further on your server or locally on theĭevice. Typically, your DPC delivers logs to a server for presentation to an IT admin. These on-device logging APIs canĬomplement network-layer reporting by associating requests with an app, device, Reporting gives coverage, associating a request's IP address with an app,ĭevice, or user is sometimes difficult. Gateway or firewall, if they need absolute monitoring. IT admins can report at the network layer, such as a corporate VPN Note: Some apps might bypass the logged network APIs by connecting directly to Your DPC can call network logging APIs to report TCPĬonnections and DNS lookups from system networking calls. Logging network activity can help enterprises detect and track the spread of
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Continue reading to learn how to add network logging to your DPC. This document explains how a device policy controller (DPC) logs networkĪctivity.
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