NAME    [Toc]    [Back]

       rhosts,  .rhosts, shosts, .shosts - Specifies remote users
       who can use a local user account

SYNOPSIS    [Toc]    [Back]

       $HOME/.rhosts

       $HOME/.shosts

DESCRIPTION    [Toc]    [Back]

       The file contains a list  of  remote  users  who  are  not
       required  to  supply  a  login  password when they use the
       local user account and execute the rcp,  rlogin,  and  rsh
       commands.

       The  file  contains  a  list  of  remote users who are not
       required to supply a login  password  when  they  use  the
       local  user  account and execute the scp2, sftp2, and ssh2
       Secure Shell commands or the rcp, rlogin, and rsh commands
       when they are configured to use a Secure Shell connection.
       See Security Administration  for  more  information  about
       configuring  these  commands to use a Secure Shell connection.


       The file is read by the rlogind, rshd,  and  Secure  Shell
       sshd  daemons.  The file is read only the the Secure Shell
       sshd daemon.  If both files exist, the Secure Shell daemon
       reads  the  file first, then the file.  If either of these
       files allows access for a particular connection, a  Secure
       Shell  connection  is used, even if the other file forbids
       it.

       The file and file are a hidden  files  in  a  user's  home
       directory.   These  files must be owned by the user or the
       root user and must not be writable by group or world, otherwise,
  it  is not used.  Although it is not required, it
       is recommended to set the permissions of  these  files  to
       600, so the file is not readable by group or world.

       Each entry in the file and file is of the following form:

       host [user]


       where: The fully qualified domain name of the remote host.
       The login name of the remote user. This field is optional.
       If a user name is not specified, any user on the specified
       remote host is exempt from providing a  password,  and  is
       assumed  to  have  the same username on both the local and
       remote hosts.

       Optionally, in the and file you can specify a NIS netgroup
       name for the host name, user name, or both.

       Entries  in  the and file are either positive or negative.
       Positive  entries  allow  access;  negative  entries  deny
       access. The following entries are positive:

       hostname username +@netgroup

       The following entries are negative:

       -hostname -username -@netgroup

       In  addition, in the file you can use the plus sign (+) in
       place of the host name or user name. In place of the  host
       name, it means any remote host. In place of the user name,
       it means any user.  The use of the plus sign in  this  way
       is not supported in the file or in the file if you configured
 the rcp, rlogin, and rsh commands  to  use  a  Secure
       Shell  connection.  See  Security  Administration for more
       information about configuring  these  commands  to  use  a
       Secure Shell connection.

EXAMPLES    [Toc]    [Back]

       The  following entries in the /u/chen/.rhosts file on host
       zeus  allow  users  moshe  and  pierre  at   remote   host
       venus.ne.corp.com  and  user robert at the hosts specified
       in the NIS netgroup chicago to log in to user chen's  home
       directory on host zeus:

       venus.ne.corp.com moshe venus.ne.corp.com pierre +@chicago
       robert

       The following entry in the /u/peter/.shosts file  on  host
       zeus allow the user evan at remote host saturn.ne.corp.com
       to log in to user peter's home directory on host zeus:

       saturn.ne.corp.com evan

FILES    [Toc]    [Back]

       Specifies remote users who can use a local  user  account.
       Specifies remote users who can use a local user account.

SEE ALSO    [Toc]    [Back]

       Commands:  rcp(1),  rlogin(1),  rsh(1), scp2(1), sftp2(1),
       ssh2(1)

       Functions: ruserok(3), rcmd(3)

       Files: hosts.equiv(4), netgroup(4)

       Guides: Security Administration



                                                        rhosts(4)