I am terribly sorry but i posted wrong version (one from clipboard not
actually right one so again).
You can edit what you want (eg hashing or anything else). I don't know
how to stop it from init.d script gracefully (for now I have there kill
-9 pid). I thing the problem is in the loop (while /bin/true).
#!/bin/sh
#verze 2.0.0_2013-05-31
lock=/var/run/hostnames-updater.pid
shmm="/dev/shm/hosts"
clean () {
rm $lock
rm $shmm
}
trap clean SIGHUP SIGINT SIGTERM
/bin/echo $$ > $lock
while /bin/true
do
tst(){
x=0
if /usr/bin/test $3 = $(/usr/bin/ssh-keyscan -p $2 $5
2>/dev/null|/bin/sed 's/.*\ ssh-.*\ //g'|/usr/bin/whirlpooldeep)
then
x=$5
elif /usr/bin/test $1 -gt 2
then
if /usr/bin/test $3 = $(/usr/bin/ssh-keyscan -p $2 $6
2>/dev/null|/bin/sed 's/.*\ ssh-.*\ //g'|/usr/bin/whirlpooldeep)
then
x=$6
else
x=$4
fi
else
x=$4
fi
}
####################host1
tst <address count> <port> <hash> <fallback address> <address 1> ...
<addressn> 2>&1 >/dev/null
host1=$x
####################AJA
/bin/echo "# /etc/hosts: Local Host Database
#
# This file describes a number of aliases-to-address mappings for the for
# local hosts that share this file.
#
# In the presence of the domain name service or NIS, this file may not be
# consulted at all; see /etc/host.conf for the resolution order.
#
# IPv4 and IPv6 localhost aliases
127.0.0.1 $(hostname).local $(hostname) localhost
::1 localhost
#
# Imaginary network.
$host1 hostname1
# Last update $(date --rfc-3339=ns)
#
#
# According to RFC 1918, you can use the following IP networks for private
# nets which will never be connected to the Internet:
#
# 10.0.0.0 - 10.255.255.255
# 172.16.0.0 - 172.31.255.255
# 192.168.0.0 - 192.168.255.255
#
# In case you want to be able to connect directly to the Internet (i.e. not
# behind a NAT, ADSL router, etc...), you need real official assigned
# numbers. Do not try to invent your own network numbers but instead
get one
# from your network provider (if any) or from your regional registry (ARIN,
# APNIC, LACNIC, RIPE NCC, or AfriNIC.)
#
" > $shmm
/bin/mv $shmm /etc/hosts
/usr/bin/sleep 120
done
