= zmq_plain(7)


== NAME
zmq_plain - clear-text authentication


== SYNOPSIS
The PLAIN mechanism defines a simple username/password mechanism that 
lets a server authenticate a client. PLAIN makes no attempt at security 
or confidentiality. It is intended for use on internal networks where 
security requirements are low. The PLAIN mechanism is defined by this 
document: <http://rfc.zeromq.org/spec:24>.


== USAGE
To use PLAIN, the server shall set the ZMQ_PLAIN_SERVER option, and the 
client shall set the ZMQ_PLAIN_USERNAME and ZMQ_PLAIN_PASSWORD socket 
options. Which peer binds, and which connects, is not relevant.


== SEE ALSO
* xref:zmq_setsockopt.adoc[zmq_setsockopt]
* xref:zmq_null.adoc[zmq_null]
* xref:zmq_curve.adoc[zmq_curve]
* xref:zmq.adoc[zmq]


== AUTHORS
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read the 0MQ Contribution Policy at <https://zeromq.org/how-to-contribute/>.