Zscaler, Inc.

Vikas Mahajan

Abhinav Bansal

Purvi J Desai

Srikanth Devarajan

Ajit Singh

Chenglong Zheng

Sandeep Kamath

John A Chanak

Chakkaravarthy Periyasamy Balaiah

Pankaj Chhabra

Vivek Raman

Vladimir Stepanenko

Rohit Goyal

Sreedhar Pampati

David Creedy

Sandeep Kumar

Kunal Pankaj Shah

Amit Sinha

Patrick Foxhoven

Rishabh Gupta

Vijay Bulusu

Sandeep Kamath Voderbet

Victor Pavlov

Amandeep Singh

Andrey Tverdokhleb

Charles Huang

Vamshi Palkonda

Gregory Rybinski

Barrett Hostetter-Lewis

Xiang Yu

Ramesh Kumar Somasundaram

Anjali Anjali

Sindhura Mandava

Ramesh Badam

Yun Ling

Huiju Wu

Roy Rajan

Systems and methods implemented by a user device include receiving a request, from an application executed on the user device, to identify a network path for a destination; determining the network path to the destination including ports, addresses, and inline proxies; and providing details of the network path to the application.

Rest API provided by a local agent to detect network path of a request

Systems and methods implemented via a broker in a cloud-based system include steps of, responsive to a user and associated user device executing a client connector being authenticated, receiving a notification from the client connector; determining private applications accessible by the user based on policy, wherein the private applications are located in one of a public cloud, a private cloud, and an enterprise network; and sending a Top-Level Domain+1 (TLD+1) list of the accessible private applications to the user device, wherein the TLD+1 includes a TLD and a domain name.

Systems and methods for providing scalable per-client private application access directories

Systems and methods include receiving a request, in a cloud system from a first device, to access a second device; determining if the first device is permitted to access the second device; if the first device is not permitted to access the second device, notifying the first device the second device does not exist; and, if the first device is permitted to access the second device, stitching together connections between the cloud system, the first device, and the second device to provide access to the second device for the first device, wherein the connections are implemented through the cloud-based system.

Systems and methods for providing private application access via client to client and server to client communication through a cloud-based system

Techniques for processing web probes for monitoring user experience including use of caching to prevent a surge of web probes on destination servers and for detecting web probe traffic. A method implemented by a connector includes intercepting a Hypertext Transfer Protocol Secure (HTTPS) web probe request to a server, identifying a cache hit associated with the request in a cache, generating a synthetic Hypertext Transfer Protocol (HTTP) response based on information from the identified cache hit, wherein the generated synthetic HTTP response includes an extension header containing collected statistics, and sending the synthetic HTTP response. The method can further include simulating a Secure Socket Layer (SSL) handshake to estimate SSL cost.

Systems and methods for reducing server load with HTTPS cache

Systems and methods include obtaining trusted network rules for a plurality of networks, wherein the trusted network rules include whether a network is untrusted or one of a plurality of trusted networks; obtaining policy configurations for each of the trusted network rules, wherein the policy configurations define configurations for a cloud-based system to use with a user device based on a corresponding network where the user device is connected; communicating with the user device and determining which network of the plurality of network the user device is connected; and applying the configurations in the cloud-based system for the user device based on the network the user device is connected. The steps can further include obtaining forwarding policies for each of the plurality of networks; and providing the forwarding policies to a connector application executed on the user device.

Cloud policy enforcement based on network trust

Systems and methods include intercepting traffic on the user device; forwarding the traffic to a cloud-based system for security processing therein; and, responsive to unavailability of the cloud-based system preventing the forwarding, performing local security processing of the traffic at the user device including determining whether the traffic is allowed based on a cache at the user device, forwarding the traffic separate from the cloud-based system when it is allowed, and blocking the traffic when it is not allowed.

Disaster recovery for a cloud-based security service

Systems and methods include establishing a control channel of a tunnel utilizing a first encryption technique, wherein the tunnel is between a local node including one or more processors and a remote node, and wherein the control channel includes a session identifier; establishing a data channel of the tunnel utilizing a second encryption technique, wherein the data tunnel is bound to the control channel based on the session identifier; performing, over the control channel, device authentication and user authentication of one or more users associated with the remote node, wherein each of the one or more users includes a user identifier; and, subsequent to the device authentication and the user authentication, exchanging data packets over the data channel with each data packet including a corresponding user identifier. The first encryption technique can be one of TLS and SSL, and the second encryption technique can be one of TLS and DTLS.

Cloud-based tunnel protocol systems and methods for multiple ports and protocols

Techniques for using web probes for monitoring user experience including use of caching to prevent a surge of web probes on destination servers and for detecting web probe traffic through a proxy including where the traffic is encrypted. A method implemented by a proxy includes receiving a response to a first web probe to a destination server; caching data associated with the response to the first web probe in a cache; receiving a request for a second web probe to the destination server; and serving a response to the second web probe utilizing the data in the cache in lieu of forwarding the second web probe to the destination server.

Cached web probes for monitoring user experience

Techniques for using web probes for monitoring user experience including use of caching to prevent a surge of web probes on destination servers and for detecting web probe traffic through a proxy including where the traffic is encrypted. A method implemented by a proxy includes receiving encrypted traffic with an indicator in a header indicating a request for probe traffic; inspecting the request and a response for the probe traffic; and caching data associated with the response to in a cache.

Detecting web probes versus regular traffic through a proxy including encrypted traffic

Systems and methods include intercepting traffic on a mobile device based on a set of rules; determining whether a connection associated with the traffic is allowed based on a local map associated with an application; responsive to the connection being allowed or blocked based on the local map, one of forwarding the traffic associated with the connection when allowed and generating a block of the connection at the mobile device when blocked; and, responsive to the connection not having an entry in the local map, forwarding a request for the connection to a cloud-based system for processing therein. The cloud-based system is configured to allow or block the connection based on the connection not having an entry in the local map.

Enforcing security policies on mobile devices in a hybrid architecture

Systems and methods implemented by an application executed on a user device for service discovery and connectivity include, responsive to joining a new network, performing a Dynamic Host Configuration Protocol (DHCP) operation to obtain network configuration parameters; receiving a DHCP message in response with the network configuration parameters; via an application executed on the user device for service discovery and connectivity analyzing data in the DHCP message to determine one or more forwarding profiles on the new network, wherein the one or more forwarding profiles are based on a location or trust of the new network; and automatically installing the determined one or more forwarding profiles.

Use of DHCP for location information of a user device for automatic traffic forwarding

Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include receiving a request from a client to perform a reverse trace; requesting a trace to an endpoint that is one of an egress router and a tunnel client, wherein there is a tunnel between i) the destination and ii) the one of the egress router and the tunnel client; receiving a response to the trace; and sending details associated with the response to the client so that the client aggregates these details with details from one or more additional legs to provide an overall view of a service path between the client and the destination.

Detection of latency, packet drops, and network hops through a TCP tunnel using ICMP and UDP probes

Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include receiving a request, from a client, for one or more of a first trace of a tunnel and a second trace to a destination; checking a cache at the node for results from previous traces of the first trace and the second trace; responsive to the results not being in the cache, performing one or more of the first trace and the second trace; and providing the results to the client so that the client aggregates the results with details from one or more additional legs to provide an overall view of a service path between the client and the destination.

Metric computation for traceroute probes using cached data to prevent a surge on destination servers

Systems and methods implemented by an application executed on a user device for service discovery and connectivity include discovering one or more cloud services for a user associated with the user device; creating and operating an interface on the user device; and intercepting traffic at the interface from one or more client applications on the user device and splitting the traffic based on configuration to the one or more cloud services. The method can further include authenticating the user into the one or more cloud services prior to the splitting.

Systems and methods for cloud based unified service discovery and secure availability

Systems and methods in a mobile device communicatively coupled to a cloud based security system, the method for detecting and processing in-channel events associated with a network agnostic mobile application, the method includes intercepting outgoing data from the network agnostic mobile application at a tunnel interface on the mobile device; monitoring the outgoing data for network transactions from the network agnostic mobile application to maintain a context of the network transactions and intended responses for every request; transmitting the outgoing data from the tunnel interface to the cloud based security system; and receiving a response from the cloud based security system responsive to the outgoing data and processing any deviation from the intended responses.

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Ludhiana, India

Vikas Mahajan