Also,
Don't forget to comment out the entry for
telnet from /etc/inetd.conf and restart the
inetd. That will only stop the telnet connection
to the server.
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Question
How to implement SSH in Solaris system
We have two Solaris 8 servers in our lab. School asks us to stop telnet to these servers from the intranet dailup but instead we are given access to SSH.
I know little on OS. What I need to do to implement SSH into systems? Patching files? Thanks!
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Answers
Unfortunately, you have to do some manual configurattion by hand. (You need to download all the package from the site I specified, and installed them, then EDIT the configuration files, and generate keys). This only enable you to use ssh to get accese to other box with sshd runing.
You make you sshd automatically startup on reboot.
Here's the startup script for sshd, save it as /etc/rc2.d/S99sshd
#!/sbin/sh
# This script is for start and stop the OpenSSH daemon -- sshd
# Written By: Greg Yu, Date: 21/11/2001
#
# OpenSSH configuration files location: /usr/local/etc
# OpenSSH key files location: /etc/ssh2
#
# Generic script used to start and stop a service
case "$1" in
'start')
# Start the sshd server
if [ -f /usr/local/sbin/sshd ]; then
/usr/local/sbin/sshd &
fi
;;
'stop')
pid=`ps -ef | grep sshd | grep -v grep | awk '{print $2} ' `
if test "$pid" ; then
/usr/bin/kill $pid
else
echo "No PID file. Process may not be running"
fi
;;
*)
echo "Usage: /etc/init.d/sshd { start | stop }"
;;
esac
exit 0
#=========================
Modify the about script to suit your secure shell installaton.
To disable telnet, ftp you need to vi /etc/inetd.conf
and comment out the service.
and then restart inted
ps -ef | grep intetd | grep -v grep
kill -HUP process_id
restart the inted deamon
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by: yuzhPosted on 2002-12-04 at 20:53:20ID: 7534965
You need to download secure ssh for your version of OS from the following site and install it:
http://sunfreeware.com/
Here's something I wrote sometime ago from my previous installation:
Openssh configuration files:
Solaris: /usr/local/etc/ssh_config
1) Install the following packages:
openssl-0.9.6c
openssh-3.1p1
prngd-0.9.23
zlib-1.1.4
perl-5.6.1
2) Setup the Pseudo Random Number Generator Daemon
mkdir /var/spool/prngd
write a script to auto start and stop the prngd daemon (S98prngd), put it in
/etc/rc2.d, make it start before the sshd startup script
3) cd /usr/local/etc, edit ssh_config and sshd_config file.
I put the keys in /etc/ssh2
4) create the ssh keys use the following commands:
ssh-keygen -t rsa1 -f /etc/ssh2/ssh_host_key -N ""
ssh-keygen -t dsa -f /etc/ssh2/ssh_host_dsa_key
ssh-keygen -t rsa -f /etc/ssh2/ssh_host_rsa_key
5) cp ~/bin/start-ssh.sh /etc/rc2.d/S99sshd
change the permissions for /etc/rc2.d/S99sshd
/etc/rc2.d/S99sshd start
Note: you can forgot about perl 5.x if you are not using it.
Here's a sample script for Setup the Pseudo Random Number Generator Daemon (I call it /etc/rc2.d/S98prngd
#!/bin/sh
# Start up script for Pseudo Random Number Generator Daemon
#
# placed in /etc/init.d with file name prngd and then as root run
# This daemon must run before the sshd start
#
# chown root /etc/init.d/prngd
# chgrp sys /etc/init.d/prngd
# chmod 555 /etc/init.d/prngd
# ln -s /etc/init.d/prngd /etc/rc2.d/S98prngd
# /etc/rc2.d/S98prngd stop
# /etc/rc2.d/S98prngd start
pid=`/usr/bin/ps -e | /usr/bin/grep prngd | /usr/bin/sed -e 's/^ *//' -e 's/ .*//'`
case $1 in
'start')
/usr/local/bin/prngd /var/spool/prngd/pool
;;
'stop')
if [ "${pid}" != "" ]
then
/usr/bin/kill ${pid}
fi
;;
*)
echo "usage: /etc/init.d/prngd {start|stop}"
;;
esac
#---------------End of Script--------------------
All you need to do is download the package, and follow my notes, to make it up and running.
You can find more instructions and the sshd startup stript from the following site:
http://sunfreeware.com/ope
Good luck!
==========
yuzh
PS: if you need more help, please let me know.