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FreeBSD 11.0 - man page for rhosts (freebsd section 5)

HOSTS.EQUIV(5)						      BSD File Formats Manual						    HOSTS.EQUIV(5)

hosts.equiv, .rhosts -- trusted remote host and user name data base
The hosts.equiv and .rhosts files contain information regarding trusted hosts and users on the network. For each host a single line should be present with the following information: simple hostname [username] or the more verbose [+-][hostname|@netgroup] [[+-][username|@netgroup]] A ``@'' indicates a host by netgroup or user by netgroup. A single ``+'' matches all hosts or users. A host name with a leading ``-'' will reject all matching hosts and all their users. A user name with leading ``-'' will reject all matching users from matching hosts. Items are separated by any number of blanks and/or tab characters. A ``#'' indicates the beginning of a comment; characters up to the end of the line are not interpreted by routines which search the file. Host names are specified in the conventional Internet DNS dotted-domains ``.'' (dot) notation using the inet_addr(3) routine from the Inter- net address manipulation library, inet(3). Host names may 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, or if it is not owned by the user, or if it is writable by anyone other than the user.
/etc/hosts.equiv The hosts.equiv file resides in /etc. $HOME/.rhosts .rhosts file resides in $HOME.
EXAMPLES foo Trust user ``foo'' from host ``''. +@allclient Trust all hosts from netgroup ``allclient''. +@allclient -@dau Trust all hosts from netgroup ``allclient'' and their users except users from netgroup ``dau''.
rcp(1), rlogin(1), rsh(1), gethostbyname(3), inet(3), innetgr(3), ruserok(3), netgroup(5), ifconfig(8), yp(8)
This manual page is incomplete. For more information read the source in src/lib/libc/net/rcmd.c or the SunOS manual page.
December 25, 2013 BSD

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