Abstract: A method for data management is described. The method may include generating a first snapshot of a first state of a data object, generating, using metadata associated with the first snapshot of the first state, a first hash value, and storing the first hash value to a blockchain. If the data object or device or system supporting the data object fails, then a failover procedure may be used to recover the data object. The method may include receiving an instruction to recover the first state of the data object using the first snapshot, retrieving the first hash value from the blockchain, comparing the first hash value retrieved from the blockchain to a second hash value of the metadata associated with the first snapshot, and determining, based at least in part on a result of the comparing, whether the first snapshot stored in the data management system is unmodified.

Abstract: Techniques for secure transparent switching between modes of a virtual private network (VPN) are provided. A principal, via a client, establishes a VPN session in a first mode of operation with a server. The principal subsequently requests a second mode of operation during the same VPN session. The VPN session is transparently transitioned to the second mode of operation without any interaction being required on the part of the principal and without terminating the original VPN session.

Abstract: Techniques for high availability of virtual private networks (VPN's) are provided. VPN gateways are organized as a virtual ring of VPN gateways. A client seeking to establish VPN communications with a destination resource is assigned one of the VPN gateways as a primary gateway and one VPN gateway as a secondary gateway. When a client's primary fails, the client seamless transitions to its designated secondary and the VPN gateways reconfigure themselves to account for the primary's failure.

Abstract: Techniques for secure transparent switching between modes of a virtual private network (VPN) are provided. A principal, via a client, establishes a VPN session in a first mode of operation with a server. The principal subsequently requests a second mode of operation during the same VPN session. The VPN session is transparently transitioned to the second mode of operation without any interaction being required on the part of the principal and without terminating the original VPN session.

Abstract: Techniques for secure transparent switching between modes of a virtual private network (VPN) are provided. A principal, via a client, establishes a VPN session in a first mode of operation with a server. The principal subsequently requests a second mode of operation during the same VPN session. The VPN session is transparently transitioned to the second mode of operation without any interaction being required on the part of the principal and without terminating the original VPN session.

Abstract: Apparatus, systems, and methods may operate to establish a virtual private network (VPN) connection between a server in a private network and a client in a public network. Additional activities include intercepting a socket call from the client requesting resolution of a network address associated with a domain name in the private network, searching a local linked list for the network address, returning the network address to the client if the network address is found in the local linked list, and, if the network address is not found in the local linked list, sending a request to resolve the network address to a domain name system (DNS) server in the private network. Additional apparatus, systems, and methods are disclosed.

Abstract: Techniques for automatic discovery and update of client environmental information in a virtual private network (VPN) are provided. Vendor adapters dynamically monitor information produced by software vendors for change information associated with software products. The change information is transformed into policy rules that are dynamically pushed to client agents on clients. The client agents acquire client information for the policy rules from their clients and report back to a VPN server. The VPN server in cooperation with the client agents then decide whether VPN sessions are permissible between the clients and the VPN server.

Abstract: Techniques for secure transparent switching between modes of a virtual private network (VPN) are provided. A principal, via a client, establishes a VPN session in a first mode of operation with a server. The principal subsequently requests a second mode of operation during the same VPN session. The VPN session is transparently transitioned to the second mode of operation without any interaction being required on the part of the principal and without terminating the original VPN session.

Abstract: Techniques for high availability of virtual private networks (VPN's) are provided. VPN gateways are organized as a virtual ring of VPN gateways. A client seeking to establish VPN communications with a destination resource is assigned one of the VPN gateways as a primary gateway and one VPN gateway as a secondary gateway. When a client's primary fails, the client seamless transitions to its designated secondary and the VPN gateways reconfigure themselves to account for the primary's failure.

Abstract: Apparatus, systems, and methods may operate to establish a virtual private network (VPN) connection between a server in a private network and a client in a public network. Additional activities include intercepting a socket call from the client requesting resolution of a network address associated with a domain name in the private network, searching a local linked list for the network address, returning the network address to the client if the network address is found in the local linked list, and, if the network address is not found in the local linked list, sending a request to resolve the network address to a domain name system (DNS) server in the private network. Additional apparatus, systems, and methods are disclosed.