DBMMANAGE2(1)                     dbmmanage2                     DBMMANAGE2(1)



NAME
       dbmmanage2 - Manage user authentication files in DBM format


SYNOPSIS
       dbmmanage2 [ encoding ] filename add|adduser|check|delete|update
       username [ encpasswd [ group[,group...] [ comment ] ] ]


       dbmmanage2 filename view [ username ]


       dbmmanage2 filename import



SUMMARY
       dbmmanage2 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 dbmmanage2.
       This program can only be used when the usernames are stored in a DBM
       file. To use a flat-file database see htpasswd2.


       This manual page only lists the command line arguments. For details of
       the directives necessary to configure user authentication in httpd2 see
       the httpd2 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. dbmmanage2 passwords.dat add rbowen
              foKntnEF3KSXA

       adduser
              Asks for a password and then adds an entry for username to
              filename. dbmmanage2 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. dbmmanage2
              passwords.dat check rbowen

       delete Deletes the username entry from filename. dbmmanage2
              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. dbmmanage2 passwords.dat update
              rbowen

       view   Just displays the contents of the DBM file. If you specify a
              username, it displays the particular record only. dbmmanage2
              passwords.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
       dbmmanage2 expects to see. dbmmanage2 currently has no way of
       determining what type of DBM file it is looking at. If used against the
       wrong format, 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.


       dbmmanage2 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 dbmmanage2 will look
       for system libraries is Berkeley DB 2, then NDBM, then GDBM and then
       SDBM. The first library found will be the library dbmmanage2 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                2004-12-10                     DBMMANAGE2(1)
