DBMMANAGE(1)							     dbmmanage							      DBMMANAGE(1)

NAME

       dbmmanage - Manage user authentication files in DBM format

SYNOPSIS

       dbmmanage [ encoding ] filename add|adduser|check|delete|update username [ encpasswd [ group[,group...] [ comment ] ] ]

       dbmmanage filename view [ username ]

       dbmmanage filename import

SUMMARY

       dbmmanage is used to create and update the DBM format files used to store usernames and password for basic authentication of HTTP users via
       mod_authn_dbm. Resources available from the Apache HTTP server can be restricted to just the users listed in the files created  by  dbmman-
       age. This program can only be used when the usernames are stored in a DBM file. To use a flat-file database see htpasswd.

       Another tool to maintain a DBM password database is htdbm.

       This  manual  page only lists the command line arguments. For details of the directives necessary to configure user authentication in httpd
       see the httpd manual, which is part of the Apache distribution or can be found at http://httpd.apache.org/.

OPTIONS

       filename
	      The filename of the DBM format file. Usually without the extension .db, .pag, or .dir.

       username
	      The user for which the operations are performed. The username may not contain a colon (:).

       encpasswd
	      This is the already encrypted password to use for the update and add commands. You may use a hyphen (-) if you want to get  prompted
	      for  the	password,  but	fill in the fields afterwards. Additionally when using the update command, a period (.) keeps the original
	      password untouched.

       group  A group, which the user is member of. A groupname may not contain a colon (:). You may use a hyphen (-) if you don't want to  assign
	      the  user  to  a	group,	but fill in the comment field. Additionally when using the update command, a period (.) keeps the original
	      groups untouched.

       comment
	      This is the place for your opaque comments about the user, like realname, mailaddress or such things. The server	will  ignore  this
	      field.

   Encodings
       -d     crypt encryption (default, except on Win32, Netware)

       -m     MD5 encryption (default on Win32, Netware)

       -s     SHA1 encryption

       -p     plaintext (not recommended)

   Commands
       add    Adds an entry for username to filename using the encrypted password encpasswd. dbmmanage passwords.dat add rbowen foKntnEF3KSXA

       adduser
	      Asks for a password and then adds an entry for username to filename. dbmmanage passwords.dat adduser krietz

       check  Asks  for  a  password  and  then  checks if username is in filename and if it's password matches the specified one. dbmmanage pass-
	      words.dat check rbowen

       delete Deletes the username entry from filename. dbmmanage passwords.dat delete rbowen

       import Reads username:password entries (one per line) from STDIN and adds them to filename. The passwords already have to be crypted.

       update Same as the adduser command, except that it makes sure username already exists in filename. dbmmanage passwords.dat update rbowen

       view   Just displays the contents of the DBM file. If you specify a username, it displays  the  particular  record  only.  dbmmanage  pass-
	      words.dat view

BUGS

       One  should  be	aware that there are a number of different DBM file formats in existence, and with all likelihood, libraries for more than
       one format may exist on your system. The three primary examples are SDBM, NDBM, the GNU project's GDBM, and Berkeley DB	2.  Unfortunately,
       all  these  libraries use different file formats, and you must make sure that the file format used by filename is the same format that dbm-
       manage expects to see. dbmmanage currently has no way of determining what type of DBM file it is looking at. If used against the wrong for-
       mat,  will simply return nothing, or may create a different DBM file with a different name, or at worst, it may corrupt the DBM file if you
       were attempting to write to it.

       dbmmanage has a list of DBM format preferences, defined by the @AnyDBM::ISA array near the beginning of the program. Since  we  prefer  the
       Berkeley  DB  2	file  format,  the order in which dbmmanage will look for system libraries is Berkeley DB 2, then NDBM, then GDBM and then
       SDBM. The first library found will be the library dbmmanage will attempt to use for all DBM file transactions. This  ordering  is  slightly
       different than the standard @AnyDBM::ISA ordering in Perl, as well as the ordering used by the simple dbmopen() call in Perl, so if you use
       any other utilities to manage your DBM files, they must also follow this preference ordering. Similar care must be taken if using  programs
       in other languages, like C, to access these files.

       One can usually use the file program supplied with most Unix systems to see what format a DBM file is in.

Apache HTTP Server						    2018-07-06							      DBMMANAGE(1)