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RedHat 9 (Linux i386) - man page for hosts.equiv (redhat section 5)

HOSTS.EQUIV(5)			    Linux Programmer's Manual			   HOSTS.EQUIV(5)

       /etc/hosts.equiv  - list of hosts and users that are granted "trusted" r command access to
       your system

       The hosts.equiv file allows or denies hosts and users to use the r-commands (e.g.  rlogin,
       rsh or rcp) without supplying a password.

       The file uses the following format:

       [ + | - ] [hostname] [username]

       The  hostname is the name of a host which is logically equivalent to the local host. Users
       logged into that host are allowed to access like-named user accounts  on  the  local  host
       without	supplying  a  password.   The hostname may be (optionally) preceded by a plus (+)
       sign.  If the plus sign is used alone it allows any host to access your system.	 You  can
       expicitly  deny access to a host by preceding the hostname by a minus (-) sign. Users from
       that host must always supply a password.  For security reasons you should always  use  the
       FQDN of the hostname and not the short hostname.

       The  username entry grants a specific user access to all user accounts (except root) with-
       out supplying a password. That means the user is NOT restricted	to  like-named	accounts.
       The username may be (optionally) preceded by a plus (+) sign. You can also explicitly deny
       access to a specific user by preceding the username with a minus (-) sign. This says  that
       the user is not trusted no matter what other entries for that host exist.

       Netgroups can be specified by preceding the netgroup by an @ sign.

       Be  extremely  careful  when  using  the plus (+) sign. A simple typographical error could
       result in a standalone plus sign. A standalone plus sign  is  a	wildcard  character  that
       means "any host"!


       Some systems will only honor the contents of this file when it has owner root and no write
       permission for anybody else. Some exceptionally paranoid systems even require  that  there
       be no other hard links to the file.

       rhosts(5), rshd(8), rlogind(8)

Linux					    1995-01-29				   HOSTS.EQUIV(5)

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