TCP Wrapper refuses connection, Banner Message Needed

TCP Wrapper refuses connection, Banner Message Needed

Post by thomas.cornel.. » Sat, 09 Jul 2005 23:50:09



Hi all,

i have a Problem with the TCP Wrapper which is shipped with Solaris 9.
In a previous Version of Solaris (x-8) i had to create Banner Messages
(eg. tcp_wrappers_7.6/Banners.Makefile) which are displayed, if the
wrapper refused a connection. Is this still needed with the TCP Wrapper
witch is shipped with Solaris 9? And if so, how can i create this
Banner Messages?

Thanks a lot!

-Tom-

 
 
 

TCP Wrapper refuses connection, Banner Message Needed

Post by Martin Pau » Tue, 12 Jul 2005 16:25:09



> i have a Problem with the TCP Wrapper which is shipped with Solaris 9.
> In a previous Version of Solaris (x-8) i had to create Banner Messages
> (eg. tcp_wrappers_7.6/Banners.Makefile) which are displayed, if the
> wrapper refused a connection. Is this still needed with the TCP Wrapper
> witch is shipped with Solaris 9? And if so, how can i create this
> Banner Messages?

You only need to create banner messages if you actually want to display
information on the client on why the connection was refused. If you
just want to deny the connection, no banners are needed. To use banners,
use a rule like this in /etc/hosts.deny:

  in.telnetd: ALL: banners /banners: DENY

And put the message to be shown into /banners/in.telnetd. It's all
detailed in `man -M /usr/sfw/man hosts_options`.

hth, mp.
--
Systems Administrator | Institute of Scientific Computing | Univ. of Vienna

 
 
 

1. tcp wrappers and tcp banners.....HELP

I have a redhat 6.0 setup with tcp wrappers.
This is a section of my /etc/inetd.conf

# These are standard services.
#
#ftp     stream  tcp     nowait  root    /usr/sbin/tcpd  in.ftpd -l -a
#telnet  stream  tcp     nowait  root    /usr/sbin/tcpd  in.telnetd    

we've commented out these services, however we would like to log
attempts to access these services....what can we do?

Also, we've heard of something called tcp banners, which will display
a banner when attempting to access a service, however, can't find
howto docs on it. Does anyone know where these docs are?
--
Scott Grocott
System Administrator/IT Manager
C2ON

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