ZMQ_GSSAPI(7) 0MQ Manual ZMQ_GSSAPI(7) NAME zmq_gssapi - secure authentication and confidentiality SYNOPSIS The GSSAPI mechanism defines a mechanism for secure authentication and con- fidentiality for communications between a client and a server using the Generic Security Service Application Program Interface (GSSAPI). The GSSAPI mechanism can be used on both public and private networks. GSSAPI itself is defined in IETF RFC-2743: http://tools.ietf.org/html/rfc2743. The ZeroMQ GSSAPI mechanism is defined by this document: http://rfc.ze- romq.org/spec:38. CLIENT AND SERVER ROLES A socket using GSSAPI can be either client or server, but not both. To become a GSSAPI server, the application sets the ZMQ_GSSAPI_SERVER op- tion on the socket. To become a GSSAPI client, the application sets the ZMQ_GSSAPI_SER- VICE_PRINCIPAL option to the name of the principal on the server to which it intends to connect. On client or server, the application may additionally set the ZMQ_GSS- API_PRINCIPAL option to provide the socket with the name of the principal for whom GSSAPI credentials should be acquired. If this option is not set, default credentials are used. OPTIONAL ENCRYPTION By default, the GSSAPI mechanism will encrypt all communications between client and server. If encryption is not desired (e.g. on private networks), the client and server applications can disable it by setting the ZMQ_GSS- API_PLAINTEXT option. Both the client and server must set this option to the same value. PRINCIPAL NAMES Principal names specified with the ZMQ_GSSAPI_SERVICE_PRINCIPAL or ZMQ_GSS- API_PRINCIPAL options are interpreted as "host based" name types by de- fault. The ZMQ_GSSAPI_PRINCIPAL_NAMETYPE and ZMQ_GSSAPI_SERVICE_PRINCI- PAL_NAMETYPE options may be used to change the name type to one of: ZMQ_GSSAPI_NT_HOSTBASED The name should be of the form "service" or "service@hostname", which will parse into a principal of "service/hostname" in the local realm. This is the default name type. ZMQ_GSSAPI_NT_USER_NAME The name should be a local username, which will parse into a sin- gle-component principal in the local realm. ZMQ_GSSAPI_NT_KRB5_PRINCIPAL The name is a principal name string. This name type only works with the krb5 GSSAPI mechanism. SEE ALSO zmq_setsockopt(3) zmq_null(7) zmq_curve(7) zmq(7) AUTHORS This page was written by the 0MQ community. To make a change please read the 0MQ Contribution Policy at http://www.zeromq.org/docs:contributing. 0MQ 4.3.5 10/09/2023 ZMQ_GSSAPI(7)
NAME | SYNOPSIS | CLIENT AND SERVER ROLES | OPTIONAL ENCRYPTION | PRINCIPAL NAMES | SEE ALSO | AUTHORS
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