ciphermethod.com

1. Download latest OPENSSH
2. Unpack tar file
3. CD to openssh source directory
3. vi version.h and remove VERSION_SSH information (if desired)
example: #define SSH_VERSION “OpenSSH”
4. run ./configure –with-tcp-wrappers
5. resolve any missing dependencies
6. login via a telnet session
7. disable ssh and remove existing SSH packages
8. run “make install” from openssh source directory
9. cp opensshd.init to /etc/init.d/sshd
10. add the following chkconfig information to top of ../init.d/sshd file:
# chkconfig: 2345 55 25
# description: OpenSSH server daemon
11. run chkconfig –add sshd

12 create sftponly group
groupadd sftponly

14. edit /usr/local/etc/sshd_config
update sftp subsystem to internal-sftp
# override default of no subsystems
#Subsystem sftp /usr/local/libexec/sftp-server
Subsystem sftp internal-sftp

add section to bottom of file:
Match group sftponly
ChrootDirectory %h
X11Forwarding no
AllowTcpForwarding no
ForceCommand internal-sftp

15. create sftp “jail” directory
mkdir /sftpusers
chown root:root /sftpusers
chmod 755 /sftpusers

16. create sftponly user accounts
useradd -g sftponly -d /sftpusers/user user
mkdir -p /sftpusers/user/data
chown root:root /sftpusers/user
chmod 755 /sftpusers/user
chown user:sftponly /sftpusers/user/data
chmod 700 /sftpusers/user/data
passwd user

user will now have complete control of the data directory, read access to /sftpusers/user, and be unable to cd past the root of /sftpusers/user.

If Adobe Flash is not working in FireFox, verify that the nspluginwrapper was installed.

nspluginwrapper
nspluginwrapper is an Open Source compatibility plugin for Netscape 4 (NPAPI) plugins. It enables you to use plugins on platforms they were not built for. For example, you can use the plugins compiled for i386 in Mozilla on Linux/x86_64 or other architectures.

#!/bin/sh
# dacprobe - monitor/audit daemon (drive space and rootkits)
# 20040830 - created by jamey hopkins
#
# 20050425 jah - added -x option to ssh command in order to speed up ssh call
# 20050811 jah - added SSH fail notice
# 20060425 jah - use -P on linux df to prevent drive space being placed on second line
#                shows up on servers with logical volumes

# spaces at start/end required
TEST=" lenxintq1 tto xto tlv qlv qto xlv "
PROD=" cvs dacadmin dacbup1 dacedip1 dacxextp1 dlv dms dto dxr fax1 fax2 ibb ibmtransp1 ibmxextp1 icc imserv1 lencextp1 lencometp1 lenpsp1 lentransp1 lenxintp1 ncc ns1 ns2 ticket toshcometp1 "
ALL="$PROD $TEST"
DLIMIT=90
MAILA="user@server.com"
MAILB="user@server.com pager@myairmail.com"

# check drive space
echo
echo -n "Checking Disk Space->"
echo >space.list
for HOST in `echo $ALL`
do
   echo -n " $HOST"
   if [ "$HOST" = "dacedip1" -o "$HOST" = "lenpsp1" ]
   then
      ssh -x $HOST df -k >dacprobe.$$ 2>/dev/null
      [ $? -ne 0 ] && FAIL="$FAIL $HOST"
   else
      ssh -x $HOST df -P >dacprobe.$$ 2>/dev/null
      [ $? -ne 0 ] && FAIL="$FAIL $HOST"
   fi

   COUNT=`cat dacprobe.$$ | wc -l | xargs echo`
   COUNT=`expr $COUNT - 1`
   cat dacprobe.$$ | tail -$COUNT >temp.$$ 2>/dev/null
   cat temp.$$ | grep -v cdrom >dacprobe.$$
   while read LINE
   do
      PERCENT=`echo $LINE | awk '{ print $5 }'`
      # redo PERCENT var if host is AIX
      [ "$HOST" = "lenpsp1" ] && PERCENT=`echo $LINE | awk '{ print $4 }'`
      PERCENT=`echo $PERCENT | sed 's/%//g'`
      if [ $PERCENT -gt $DLIMIT ]
      then
         PART=`echo $LINE | awk '{ print $6 }'`
	 # redo PART var if host is AIX
         [ "$HOST" = "lenpsp1" ] && PART=`echo $LINE | awk '{ print $7 }'`
	 HCAPS=`echo $HOST | tr [a-z] [A-Z]`
	 echo "${HCAPS}'s Partition $PART is ${PERCENT}% Full" >> space.list
         [ "$EMAIL" != "$MAILB" ] && EMAIL=$MAILA
	 # page if a prod server and > 98 percent full
	 echo $PROD | grep $HOST >/dev/null 2>&1
         [ $? -eq 0 -a $PERCENT -gt 98 ] && EMAIL=$MAILB
      fi
   done > space.list
	echo "WARNING - Drive Space Check Failed on the Following Servers:" >>space.list
	echo "$FAIL" >>space.list
	echo >> space.list
	echo "Please make sure dacprobe account exists and the SSH exchanges happen auto magically." >> space.list
	echo "If server is permanently down, then remove it from the list of servers to monitor." >> space.list
fi

if  [ -s space.list ]
then
   echo
   cat space.list
   {
      echo "subject: Drive Partition Exceeds ${DLIMIT}% Full Limit"
      echo "Partition Information:"
      cat space.list
      echo
      echo "Servers Checked:"
      echo "P:$PROD"
      echo "T:$TEST"
   } | /usr/sbin/sendmail -ONoRecipientAction=add-to -fdacprobe -oi "$EMAIL"
fi
rm space.list
echo

################  gather up chkrootkit output files and email

echo -n "Gather and Mail CHKROOTKIT Reports->"
PROD=" dlv dms dxr ibmpsp1 lenpsp1 lenxintp1 dacxextp1 dacxextq1 "
rm /tmp/chkrootkit.mailfile >/dev/null 2>&1
for HOST in `echo $PROD`
do
   echo -n " $HOST"
 ssh -x $HOST "cat /tmp/chkrootkit.status.*" >>/tmp/chkrootkit.mailfile 2>/dev/null
done

{
  echo "subject: CHKROOTKIT Status Report"
  echo
  echo "Servers Checked:"
  echo "P:$PROD"
  echo
  echo "Server Reports Returned:"
  cat /tmp/chkrootkit.mailfile 2>/dev/null
} | /usr/sbin/sendmail -ONoRecipientAction=add-to -fdacprobe -oi "$EMAIL"

echo 
echo

#!/bin/sh
# System Information for Linux/SCO Openserver
# Created: 07 April 2000
#      by: Jamey Hopkins
#
# 23July2002 jah - send error on uptime and ps to /dev/null to handle
#                  output of unknown HZ value linux kernel bug 
# 28July2004 jah - added CPU information / format change
#

OS=`uname`
CPU=`cat /proc/cpuinfo | grep "model name" | tail -1 | awk -F: '{ print $2 }' | xargs echo`
NCPU=`cat /proc/cpuinfo | grep "processor" | wc -l | xargs echo`
MHZ=`cat /proc/cpuinfo | grep "MHz" | tail -1 | awk -F: '{ print $2 }' | xargs echo`

echo
echo [ `uname -n | tr a-z A-Z` ]
date
printf "%s on %s %s (%s MHz)\n" "$OS" "$NCPU" "$CPU" "$MHZ"
STATS=`uptime 2>/dev/null`
echo $STATS

echo
echo "Active Processes Using >= 1% of CPU:"
echo _________________________________________________________

if [ "$OS" = "Linux" ]
then
	ps -e -o user -o pid -o c -o args 2>/dev/null | grep -v ' 0 '
elif [ "$OS" = "SCO_SV" ]
then
	ps -A -o user -o pid -o c -o args 2>/dev/null | grep -v ' 0 ' \
                 | grep -v $$ > /tmp/ps.tmp
	echo "UID\\t\\tPID\\tC\\tCMD"
	while read data
	do
		set $data
		if [ $3 -gt 4 ]
		then
			echo -n $1\\t 
			if [ `expr length $1` -lt 8 ]
				then echo -n \\t
			fi
			echo $2\\t$3\\t$4' '$5
		fi
	done < /tmp/ps.tmp
fi
echo _________________________________________________________
rm /tmp/si.tmp /tmp/usr.tmp /tmp/ps.tmp >/dev/null 2>&1
echo