rhosts, .rhosts - Specifies remote users that can use a local user account
The .rhosts file contains a list of remote users who are not required to
supply a login password when they execute the rcp, rlogin, and rsh commands
using a local user account.
The .rhosts file is a hidden file in your home directory. It must be owned
by you or the root user and it must not be writable by group or world, oth-
erwise, it is not used. Moreover, although it is not required, it is sen-
sible to set the permissions of the file to 600, so the file is not read-
able by group or world.
Each entry in the file is of the following form:
The name of the remote host. If the remote host is in a different
domain than the local host, the full domain name must be specified.
The login name of the remote user. This field is optional. If this
field 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, an NIS netgroup name can be specified for the host name, user
name, or both.
Entries in the .rhosts file are either positive or negative. Positive
entries allow access; negative entries deny access. The following entries
In addition, the plus sign (+) can be used in place of the hostname or
username. In place of the hostname, it means any remote host. In place of
the username, it means any user.
The following entries are negative:
The following sample entries in the /u/chen/.rhosts file on host zeus allow
users moshe and pierre at remote host venus and user robert at the hosts
specified in the NIS netgroup chicago to log in to user chen's home direc-
tory on host zeus:
Specifies remote users who can use a local user account.
Commands: rcp(1), rlogin(1), rsh(1).
Files: hosts.equiv(4), netgroup(4).