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ginsbach 2004-11-25 03:11:17 +00:00
parent 5a55e0c902
commit 9edd582697
1 changed files with 14 additions and 9 deletions
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23
share/man/man5/hosts.equiv.5
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@ -1,4 +1,4 @@
.\" $NetBSD: hosts.equiv.5,v 1.5 2002/01/21 17:41:01 wiz Exp $
.\" $NetBSD: hosts.equiv.5,v 1.6 2004/11/25 03:11:17 ginsbach Exp $
.\"
.\" Copyright (c) 1997 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -81,7 +81,8 @@ wildcard (allow all remote users).
If a
.Em username
is specified, only that user from the specified host may login to the
local machine. If a
local machine.
If a
.Em username
is not specified, any user may login with the same user name.
.Sh EXAMPLES
@ -97,7 +98,8 @@ The user
.Em username
on
.Em somehost
may login to the local host. If specified in
may login to the local host.
If specified in
.Em /etc/hosts.equiv ,
the user may login with only the same user name.
.Ed
@ -113,17 +115,19 @@ may login to the local host from any machine listed in the netgroup
+ +
.Ed
.Bd -filled -offset indent -compact
Two severe security hazards. In the first case, allows a user on any
machine to login to the local host as the same user name. In the second
case, allows any user on any machine to login to the local host (as any
user, if in
Two severe security hazards.
In the first case, allows a user on any
machine to login to the local host as the same user name.
In the second case, allows any user on any
machine to login to the local host (as any user, if in
.Em /etc/hosts.equiv ) .
.Ed
.Sh WARNINGS
The username checks provided by this mechanism are
.Em not
secure, as the remote user name is received by the server unchecked
for validity. Therefore this mechanism should only be used
for validity.
Therefore this mechanism should only be used
in an environment where all hosts are completely trusted.
.Pp
A numeric host address instead of a host name can help security
@ -148,7 +152,8 @@ Logins as root only check root's
.Em .rhosts
file; the
.Em /etc/hosts.equiv
file is not checked for security. Access permitted through root's
file is not checked for security.
Access permitted through root's
.Em .rhosts
file is typically only for
.Xr rsh 1 ,