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.TH "HTDIGEST" 1 "2026-05-08" "Apache HTTP Server" "htdigest"

.SH NAME
htdigest \- manage user files for digest authentication

.SH "SYNOPSIS"
 
.PP
\fB\fBhtdigest\fR [ -\fBc\fR ] \fIpasswdfile\fR \fIrealm\fR \fIusername\fR\fR
 

.SH "SUMMARY"
 
.PP
\fBhtdigest\fR is used to create and update the flat-files used to store usernames, realm and password for digest authentication of HTTP users\&. Resources available from the Apache HTTP server can be restricted to just the users listed in the files created by \fBhtdigest\fR\&.
 
.PP
This manual page only lists the command line arguments\&. For details of the directives necessary to configure digest authentication in \fBhttpd\fR see the Apache manual, which is part of the Apache distribution or can be found at http://httpd\&.apache\&.org/\&.
 

.SH "OPTIONS"
 
 
.TP
\fB-c\fR
Create the \fIpasswdfile\fR\&. If \fIpasswdfile\fR already exists, it is deleted first\&.  
.TP
\fB\fIpasswdfile\fR\fR
Name of the file to contain the username, realm and password\&. If \fB-c\fR is given, this file is created if it does not already exist, or deleted and recreated if it does exist\&.  
.TP
\fB\fIrealm\fR\fR
The realm name to which the user name belongs\&. See 2617 for more details\&.  
.TP
\fB\fIusername\fR\fR
The user name to create or update in \fIpasswdfile\fR\&. If \fIusername\fR does not exist is this file, an entry is added\&. If it does exist, the password is changed\&.  
 
.SH "SECURITY CONSIDERATIONS"
 
.PP
This program is not safe as a setuid executable\&. Do \fInot\fR make it setuid\&.
 
.SH "FILES"
 
.PP
The digest authentication file path is specified as an argument on the command line and may be located anywhere on the filesystem\&.
 
 
.TP
\fIpasswdfile\fR
The flat-file containing usernames, realms, and password hashes\&.