.rhosts

NAME

hosts.equiv, .rhosts - trusted remote host name and user data base

DESCRIPTION

The hosts.equiv and .rhosts files contain information about trusted hosts and users on the network. For each host, a single line should be present that uses either a simple or verbose format.

Simple format:

hostname [username]

Verbose format:

[+-][hostname|@netgroup] [[+-][username|@netgroup]]

An at symbol (@) indicates a hostname by netgroup or username by netgroup. A single plus sign (+) matches all hosts or users. A host name with a leading minus sign (-) will reject all matching hosts and all their users. A user name with a leading minus sign (-) will reject all matching users from matching hosts.

Items are separated by any number of blanks, tab characters, or both. A pound sign (#) indicates the beginning of a comment; characters up to the end of the line are not interpreted by routines that search the file.

Host names are specified in the conventional dot (.) notation using the inet_addr() routine from the Internet address manipulation library, inet(). Host names can contain any printable character other than a field delimiter, newline, or comment character.

For security reasons, a user's .rhosts file will be ignored if it is not a regular file, if it is not owned by the user, or if it is writable by anyone other than the user.

EXAMPLES

somehost kim

Trust user kim from host somehost.

+@allclient

Trust all hosts from netgroup allclient.

+@allclient -@dau

Trust all hosts from netgroup allclient and their users except users from netgroup dau.

FILES

/etc/hosts.equiv

The hosts.equiv file resides in /etc.

$HOME/.rhosts

.rhosts file resides in $HOME.

SEE ALSO

rlogin(1)

rcp(1)

rsh(1)

gethostbyname(3)