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Hierarchy Level

Release Information

Statement introduced in Junos OS Release 19.1R1.


Configure a Juniper Entropy Beacon (JEB) server. JEB can be used to feed high quality entropy over the network from a SRX345 Services Gateway to entropy-starved clients.


max-seed-sizeMaximum allowed size in bytes for a requested entropy seed

Default: 4096

Range: 1 through 65536

portPort to use for JEB service

Default: 57005

Range: 1025 through 65535

rbgType of random bit generator (RBG) to use for generating entropy seeds


  • default-rng—Default cryptographically secure pseudorandom number generator (CSPRNG)

  • hmac-drbg—Deterministic RBG detailed in NIST SP 800-90A


If you want to use hmac-drbg, it must be configured under the [edit system rng] hierarchy before being configured for the JEB server.

TLSConfigure TLS attributes for JEB services
cert-bundlePath to the certificate bundle that is used by the server to authenticate the client
certificatePath to the server certificate
keyPath to the server key

Required Privilege Level