User:Nebumt

htpasswd - Manage user files for basic authentication
htpasswd is used to create and update the flat-files used to store usernames and password for basic authentication of HTTP users. If htpasswd cannot access a file, such as not being able to write to the output file or not being able to read the file in order to update it, it returns an error status and makes no changes.

Resources available from the Apache HTTP server can be restricted to just the users listed in the files created by htpasswd. This program can only manage usernames and passwords stored in a flat-file. It can encrypt and display password information for use in other types of data stores, though. To use a DBM database see dbmmanage.

htpasswd encrypts passwords using either a version of MD5 modified for Apache, or the system's crypt routine. Files managed by htpasswd may contain both types of passwords; some user records may have MD5-encrypted passwords while others in the same file may have passwords encrypted with crypt.

Synopsis
htpasswd [ -c ] [ -m ] [ -D ] passwdfile username

htpasswd -b [ -c ] [ -m | -d | -p | -s ] [ -D ] passwdfile username password

htpasswd -n [ -m | -d | -s | -p ] username

htpasswd -nb [ -m | -d | -s | -p ] username password

Options
-b Use batch mode; i.e., get the password from the command line rather than prompting for it. This option should be used with extreme care, since the password is clearly visible on the command line. -c Create the passwdfile. If passwdfile already exists, it is rewritten and truncated. This option cannot be combined with the -n option. -n Display the results on standard output rather than updating a file. This is useful for generating password records acceptable to Apache for inclusion in non-text data stores. This option changes the syntax of the command line, since the passwdfile argument (usually the first one) is omitted. It cannot be combined with the -c option. -m Use MD5 encryption for passwords. On Windows, Netware and TPF, this is the default. -d Use crypt encryption for passwords. The default on all platforms but Windows, Netware and TPF. Though possibly supported by htpasswd on all platforms, it is not supported by the httpd server on Windows, Netware and TPF. -s Use SHA encryption for passwords. Facilitates migration from/to Netscape servers using the LDAP Directory Interchange Format (ldif). -p Use plaintext passwords. Though htpasswd will support creation on all platforms, the httpd daemon will only accept plain text passwords on Windows, Netware and TPF. -D Delete user. If the username exists in the specified htpasswd file, it will be deleted. passwdfile Name of the file to contain the user name and password. If -c is given, this file is created if it does not already exist, or rewritten and truncated if it does exist. username The username to create or update in passwdfile. If username does not exist in this file, an entry is added. If it does exist, the password is changed. password The plaintext password to be encrypted and stored in the file. Only used with the -b flag.

--Nebu Thomas 07:19, 3 February 2007 (UTC)