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Wednesday, March 12, 2014

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How to add telnet SSH warning/logging banner/message in solaris 10

We can add our system warning/logging banner/message by editing /etc/motd file. This message will appear once after we are logging in to system using Telnet/SSh/..etc. methord. (displayed after login)


# vi /etc/motd
"/etc/motd" 1 line, 57 characters
#########################################################################
#                   ----Sri Lanka XXXX PVT. LTD.----                 
# This system is for the use of authorized users only.             
# Individuals using this computer system without authority, or                     
# in excess of their authority, are subject to having all of                         
# activities on this system monitored and recorded by system personnel.
#########################################################################

Eg:

login as: dara
Using keyboard-interactive authentication.
Password:
Access denied
Using keyboard-interactive authentication.
Password:
Last login: Wed Mar 12 11:43:09 2014 from 172.16.0.6
#########################################################################
#                   ----Sri Lanka XXXX PVT. LTD.----                 
# This system is for the use of authorized users only.             
# Individuals using this computer system without authority, or                     
# in excess of their authority, are subject to having all of                         
# activities on this system monitored and recorded by system personnel.
#########################################################################
-bash-3.00$


For telnet we can place a banner to display while trying to access server by editing /etc/default/telnetd file.


# vi /etc/default/telnetd
"/etc/default/telnetd" [Read only] 20 lines, 652 characters
#ident  "@(#)telnetd.dfl        1.1     01/11/01 SMI"
#
# Copyright (c) 2001 by Sun Microsystems, Inc.
# All rights reserved.
#
# /etc/default/telnetd
#
# telnetd default settings processed via telnetd(1M).
#
# BANNER defines the connection banner which is displayed before the
# telnet login prompt, see telnetd(1M) for details.  The following
# commented line shows the default value.
#
#BANNER="\\r\\n\\r\\n`uname -s` `uname -r`\\r\\n\\r\\n"
#
#
# Suppress the telnet banner by supplying a null definition.
#
BANNER="**********************Warning************************\\r\\n\\r\\n uthorized uses only.All activity may be monitored and reported\\r\\n\\r\\n"


For SSH:



# vi /etc/ssh/sshd_config
.
.
.
# Banner to be printed before authentication starts.
Banner /etc/issue
.
.

.

Eg:
>telnet 172.16.0.4
**********************Warning************************

 uthorized uses only.All activity may be monitored and reported

login:

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