Abstract: Techniques for delivering a distributed network security service providing isolation of customer data are described. One example method includes assigning a first node in a distributed network to a first customer; assigning a second node in the distributed network to a second customer; configuring the assigned first node to process network traffic only from the first customer; configuring the assigned second node to process network traffic only from the second customer; processing, by the assigned first node, network traffic associated with the first customer; and processing, by the assigned second node, network traffic associated with the second customer, wherein the network traffic of the first customer is isolated from the network traffic of the second customer, wherein the network traffic of the customers is kept isolated from one another.

Abstract: A client device is configured to receive user-input and provide user-output to a client-user. A service provider is configured to serve a network-provided service for authorized users. An identity provider is configured to: maintain authorization information for the network-provided service and generate a permission-object that i) specifies that the client-user is an authorized user of the network-provided service and ii) may include an access-override field that specifies a network address of a remote browser isolation (RBI) host. The system also includes the RBI host configured to access the network-provided service; run the network-provided service in an isolation environment to generate a graphic user interface (GUI); provide a visual reproduction of the GUI to the client device; receive browser-input from the client device; and apply the browser-input to the running network-provided service.

Abstract: A server of a distributed computing system that is at least partially hosted on a particular access network receives a plurality of messages from a plurality of devices over a network, each of the messages associated with a corresponding source address. For each of the plurality of devices, a current access network is determined for the device. For each of the devices with a current access network being the particular access network, a first network policy is applied to the device. For each of the devices with a current access network being other than the particular access network, a second network policy is applied to the device, the second network policy defining a second encryption requirement.

Abstract: This present disclosure generally relates to managing encrypted network traffic using Domain Name System (DNS) responses. One example includes requesting an address; receiving a response from the resolution server including one or more addresses associated with the domain name; associating with the domain name a particular address selected from the received one or more addresses; receiving a request to resolve the domain name; sending a response to the request to resolve the domain name, the sent response including the particular address associated with the domain name; receiving a secure request for a resource, the secure request directed to the particular address associated with the domain name; and determining that the secure request is directed to the domain name based on the association between the particular address and the domain name.

Abstract: Techniques for delivering a distributed network security service providing isolation of customer data are described. One example method includes configuring a first node to participate in a node cluster, wherein the first node is hosted by a first cloud service provider, and wherein participating in the node cluster includes performing one or more processing actions specific to the node cluster on data received by the node; configuring a second node to participate in the node cluster, the second node hosted by a second cloud service provider; receiving a status indication from the first node over a network; determining a synchronization mechanism for the first node based on a network configuration of the first node, wherein the determined synchronization mechanism is configured to allow the first node to acquire synchronization data from other nodes in the node cluster; and transmitting the synchronization mechanism to the first node over the network.

Abstract: Techniques for delivering a distributed network security service providing isolation of customer data are described. One example method includes assigning a first node in a distributed network to a first customer; assigning a second node in the distributed network to a second customer; configuring the assigned first node to process network traffic only from the first customer; configuring the assigned second node to process network traffic only from the second customer; processing, by the assigned first node, network traffic associated with the first customer; and processing, by the assigned second node, network traffic associated with the second customer, wherein the network traffic of the first customer is isolated from the network traffic of the second customer, wherein the network traffic of the customers is kept isolated from one another.

Abstract: This specification generally relates to methods and systems for applying network policies to devices based on their current access network. One example method includes identifying a proxy connection request sent from a particular client device to a proxy server over a network, the proxy connection request including a hostname and configured to direct the proxy server to establish communication with the computer identified by the hostname on behalf of the client device; determining an identity of the client device based on the proxy connection request; identifying a domain name system (DNS) response to a DNS request including the hostname from the proxy connection request; and updating DNS usage information for the particular client based on the identified DNS response including the hostname from the proxy connection request.

Abstract: A client device is configured to receive user-input and provide user-output to a client-user. A service provider is configured to serve a network-provided service for authorized users. An identity provider is configured to: maintain authorization information for the network-provided service and generate a permission-object that i) specifies that the client-user is an authorized user of the network-provided service and ii) may include an access-override field that specifies a network address of a remote browser isolation (RBI) host. The system also includes the RBI host configured to access the network-provided service; run the network-provided service in an isolation environment to generate a graphic user interface (GUI); provide a visual reproduction of the GUI to the client device; receive browser-input from the client device; and apply the browser-input to the running network-provided service.

Abstract: A server of a distributed computing system that is at least partially hosted on a particular access network receives a plurality of messages from a plurality of devices over a network, each of the messages associated with a corresponding source address. For each of the plurality of devices, a current access network is determined for the device. For each of the devices with a current access network being the particular access network, a first network policy is applied to the device. For each of the devices with a current access network being other than the particular access network, a second network policy is applied to the device, the second network policy defining a second encryption requirement.

Abstract: This specification generally relates to methods and systems for applying network policies to devices based on their current access network. One example method includes identifying a proxy connection request sent from a particular client device to a proxy server over a network, the proxy connection request including a hostname and configured to direct the proxy server to establish communication with the computer identified by the hostname on behalf of the client device; determining an identity of the client device based on the proxy connection request; identifying a domain name system (DNS) response to a DNS request including the hostname from the proxy connection request; and updating DNS usage information for the particular client based on the identified DNS response including the hostname from the proxy connection request.

Abstract: A network manager configures a first node to participate in a node cluster that spans at least a first cloud service provider and the second cloud service provider. The network manager configures a second node to participate in the node cluster. The network manager configures a third node to participate in the node cluster. The network manager initiates the first node as a virtual machine. The network manager initiates the second node as a containerized program. The network manager initiates the third node as a containerized program. The network manager sends messages into the first cloud serves and into the second cloud service to cause the containerized program of the second node and the containerized program of the third node to synchronize data such that the containerized program of the second node and the containerized program of the first node perform the same network security actions.

Abstract: A server of a distributed computing system that is at least partially hosted on a particular access network receives a plurality of messages from a plurality of devices over a network, each of the messages associated with a corresponding source address. For each of the plurality of devices, a current access network is determined for the device. For each of the devices with a current access network being the particular access network, a first network policy is applied to the device. For each of the devices with a current access network being other than the particular access network, a second network policy is applied to the device, the second network policy defining a second encryption requirement.

Abstract: Techniques for delivering a distributed network security service providing isolation of customer data are described. One example method includes configuring a first node to participate in a node cluster, wherein the first node is hosted by a first cloud service provider, and wherein participating in the node cluster includes performing one or more processing actions specific to the node cluster on data received by the node; configuring a second node to participate in the node cluster, the second node hosted by a second cloud service provider; receiving a status indication from the first node over a network; determining a synchronization mechanism for the first node based on a network configuration of the first node, wherein the determined synchronization mechanism is configured to allow the first node to acquire synchronization data from other nodes in the node cluster; and transmitting the synchronization mechanism to the first node over the network.

Abstract: An execution of a data object is identified by a computing device. In response to identifying the execution of the data object, it is determined that the data object has requested a sensitive action of the computing device before interacting with a user of the computing device. In response to determining that the data object has requested the sensitive action, the data object is classified as a high-risk data object.

Abstract: Techniques for delivering a distributed network security service providing isolation of customer data are described. One example method includes assigning a first node in a distributed network to a first customer; assigning a second node in the distributed network to a second customer; configuring the assigned first node to process network traffic only from the first customer; configuring the assigned second node to process network traffic only from the second customer; processing, by the assigned first node, network traffic associated with the first customer; and processing, by the assigned second node, network traffic associated with the second customer, wherein the network traffic of the first customer is isolated from the network traffic of the second customer, wherein the network traffic of the customers is kept isolated from one another.

Abstract: This present disclosure generally relates to managing encrypted network traffic using Domain Name System (DNS) responses. One example includes requesting an address; receiving a response from the resolution server including one or more addresses associated with the domain name; associating with the domain name a particular address selected from the received one or more addresses; receiving a request to resolve the domain name; sending a response to the request to resolve the domain name, the sent response including the particular address associated with the domain name; receiving a secure request for a resource, the secure request directed to the particular address associated with the domain name; and determining that the secure request is directed to the domain name based on the association between the particular address and the domain name.

Abstract: Techniques for delivering a distributed network security service providing isolation of customer data are described. One example method includes assigning a first node in a distributed network to a first customer; assigning a second node in the distributed network to a second customer; configuring the assigned first node to process network traffic only from the first customer; configuring the assigned second node to process network traffic only from the second customer; processing, by the assigned first node, network traffic associated with the first customer; and processing, by the assigned second node, network traffic associated with the second customer, wherein the network traffic of the first customer is isolated from the network traffic of the second customer, wherein the network traffic of the customers is kept isolated from one another.

Abstract: An execution of a data object is identified by a computing device. In response to identifying the execution of the data object, it is determined that the data object has requested a sensitive action of the computing device before interacting with a user of the computing device. In response to determining that the data object has requested the sensitive action, the data object is classified as a high-risk data object.

Abstract: The present disclosure generally relates to managing encrypted network traffic using Domain Name System (DNS) responses. One example method includes requesting an address associated with the a domain name included in a predetermined set of domain names for which secure requests are to be identified; receiving a response from the resolution server including one or more addresses associated with the domain name; associating with the domain name a particular address selected from the received addresses; receiving a request to resolve the domain name; sending a response to the request to resolve the domain name including the particular address associated with the domain name; receiving a secure request for a resource, the secure request directed to the particular address associated with the domain name; and determining that the secure request is directed to the domain name based on the association between the particular address and the domain name.

Abstract: A device within the network receives a domain name service (DNS) request for an address of a first resource outside the network, the first resource associated with a security policy of the network. An address of a second resource within the network is returned to the device within the network in response the DNS request, the second resource address having previously been associated with the first resource address. A first encrypted connection is established between the device and the second resource, and a second encrypted connection is established between the second resource and the first resource, to facilitate encrypted communication traffic between the device and the first resource. The encrypted communication traffic passing between the device and the first resource is selectively decrypted and inspected depending on the address of the first resource.