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.\"     Title: zmq_plain
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 10/23/2023
.\"    Manual: 0MQ Manual
.\"    Source: 0MQ 4.3.5
.\"  Language: English
.\"
.TH "ZMQ_PLAIN" "7" "10/23/2023" "0MQ 4\&.3\&.5" "0MQ Manual"
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.SH "NAME"
zmq_plain \- clear\-text authentication
.SH "SYNOPSIS"
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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: \m[blue]\fBhttp://rfc\&.zeromq\&.org/spec:24\fR\m[]\&.
.SH "USAGE"
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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\&.
.SH "SEE ALSO"
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\fBzmq_setsockopt\fR(3) \fBzmq_null\fR(7) \fBzmq_curve\fR(7) \fBzmq\fR(7)
.SH "AUTHORS"
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This page was written by the 0MQ community\&. To make a change please read the 0MQ Contribution Policy at \m[blue]\fBhttp://www\&.zeromq\&.org/docs:contributing\fR\m[]\&.