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The default rule in this file actually sent mail to root as its default

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action when denying access to a service.  Unfortunately, this also makes
a dandy denial-of-service attack possible.  Change to just log the event
and shoot a "go away" response back down the socket.
This commit is contained in:
Jordan K. Hubbard 2000-02-17 04:52:23 +00:00
parent 7b5629bcec
commit b1be9320f3
1 changed files with 2 additions and 3 deletions
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5
etc/hosts.allow
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@ -65,8 +65,7 @@ fingerd : ALL \
/usr/bin/mail -s "tcpd\: %u@%h[%a] fingered me!" root) & \
: deny
# The rest of the daemons are protected. Backfinger and log by email.
# The rest of the daemons are protected.
ALL : ALL \
: severity auth.info : spawn (/usr/bin/finger -l @%h | \
/usr/bin/mail -s "tcpd\: %u@%h[%a] tried to use %d (denied)" root) & \
: severity auth.info \
: twist /bin/echo "You are not welcome to use %d from %h."