8:smbmount

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      smbmount - mount an smbfs filesystem
      
      smbmount {service} {mount-point} [-ooptions]

Contents

DESCRIPTION

      smbmount  mounts  a Linux SMB filesystem. It is usually invoked as mount.smbfs by the mount(8) command when using
      the "-t smbfs" option. This command only works in Linux, and the kernel must support the smbfs filesystem.
 
      Options to smbmount are specified as a comma-separated list of key=value pairs. It is possible  to  send  options
      other than those listed here, assuming that smbfs supports them. If you get mount failures, check your kernel log
      for errors on unknown options.
 
      smbmount is a daemon. After mounting it keeps running until the mounted smbfs is umounted.  It  will  log  things
      that  happen  when  in  daemon  mode  using  the "machine name" smbmount, so typically this output will end up in
      log.smbmount. The
       smbmount process may also be called mount.smbfs.
 
      Note
      smbmount calls smbmnt(8) to do the actual mount. You must make sure that smbmnt is in the path so that it can  be
      found.

OPTIONS

      username=<arg>
         specifies the username to connect as. If this is not given, then the environment variable
          USER is used. This option can also take the form "user%password" or "user/workgroup" or "user/workgroup%pass-
         word" to allow the password and workgroup to be specified as part of the username.
 
      password=<arg>
         specifies the SMB password. If this option is not given then the environment variable PASSWD is  used.  If  it
         can find no password smbmount will prompt for a passeword, unless the guest option is given.
 
         Note that passwords which contain the argument delimiter character (i.e. a comma ',') will failed to be parsed
         correctly on the command line. However, the same password defined in the PASSWD environment variable or a cre-
         dentials file (see below) will be read correctly.
 
      credentials=<filename>
         specifies a file that contains a username and/or password. The format of the file is:


         username = <value>
         password = <value>
 
         This  is preferred over having passwords in plaintext in a shared file, such as /etc/fstab. Be sure to protect
         any credentials file properly.
 
      krb
         Use kerberos (Active Directory).
 
      netbiosname=<arg>
         sets the source NetBIOS name. It defaults to the local hostname.
 
      uid=<arg>
         sets the uid that will own all files on the mounted filesystem. It may be specified as either a username or  a
         numeric uid.
 
      gid=<arg>
         sets the gid that will own all files on the mounted filesystem. It may be specified as either a groupname or a
         numeric gid.
 
      port=<arg>
         sets the remote SMB port number. The default is 445, fallback is 139.
 
      fmask=<arg>
         sets the file mask. This determines the permissions that remote files have in the local  filesystem.  This  is
         not a umask, but the actual permissions for the files. The default is based on the current umask.
 
      dmask=<arg>
         Sets the directory mask. This determines the permissions that remote directories have in the local filesystem.
         This is not a umask, but the actual permissions for the directories. The  default  is  based  on  the  current
         umask.
 
      debug=<arg>
         Sets  the  debug  level.  This is useful for tracking down SMB connection problems. A suggested value to start
         with is 4. If set too high there will be a lot of output, possibly hiding the useful output.
 
      ip=<arg>
         Sets the destination host or IP address.
 
      workgroup=<arg>
         Sets the workgroup on the destination
 
      sockopt=<arg>
         Sets the TCP socket options. See the smb.conf(5) socket options option.
 
      scope=<arg>
         Sets the NetBIOS scope
 
      guest
         Don't prompt for a password
 
      ro mount read-only
 
      rw mount read-write
 
      iocharset=<arg>
         sets the charset used by the Linux side for codepage to charset translations (NLS).  Argument  should  be  the
         name of a charset, like iso8859-1. (Note: only kernel 2.4.0 or later)
 
      codepage=<arg>
         sets  the codepage the server uses. See the iocharset option. Example value cp850. (Note: only kernel 2.4.0 or
         later)
 
      ttl=<arg>
         sets how long a directory listing is cached in milliseconds (also affects visibility of  file  size  and  date
         changes).  A  higher  value  means that changes on the server take longer to be noticed but it can give better
         performance on large directories, especially over long distances. Default is 1000ms but something like 10000ms
         (10 seconds) is probably more reasonable in many cases. (Note: only kernel 2.4.2 or later)

ENVIRONMENT VARIABLES

      The  variable  USER may contain the username of the person using the client. This information is used only if the
      protocol level is high enough to support session-level passwords. The variable can be used to set  both  username
      and password by using the format username%password.
 
      The variable PASSWD may contain the password of the person using the client. This information is used only if the
      protocol level is high enough to support session-level passwords.
 
      The variable PASSWD_FILE may contain the pathname of a file to read the password from. A single line of input  is
      read and used as the password.

OTHER COMMANDS

      File  systems  that  have been mounted using the smbmount can be unmounted using the smbumount or the UNIX system
      umount command.

BUGS

      Passwords and other options containing , can not be handled. For passwords an alternative way of passing them  is
      in a credentials file or in the PASSWD environment.
 
      The credentials file does not handle usernames or passwords with leading space.
 
      One smbfs bug is important enough to mention here, even if it is a bit misplaced:
 
      •
         Mounts  sometimes  stop working. This is usually caused by smbmount terminating. Since smbfs needs smbmount to
         reconnect when the server disconnects, the mount will eventually go dead. An umount/mount normally fixes this.
         At least 2 ways to trigger this bug are known.

Note that the typical response to a bug report is suggestion to try the latest version first. So please try doing that first, and always include which versions you use of relevant software when reporting bugs (minimum: samba, kernel, dis- tribution)

RELATED

      Documentation/filesystems/smbfs.txt  in  the linux kernel source tree may contain additional options and informa-
      tion.
 
      FreeBSD also has a smbfs, but it is not related to smbmount
 
      For Solaris, HP-UX and others you may want to look at smbsh(1) or at other solutions, such as Sharity or  perhaps
      replacing the SMB server with a NFS server.

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