Dear Sirs
I want to replace ping command to tcping or nslookup for link test in following script.who is can?Please help me.Our ISP was denied for ping

Best Regds
Please

#!/bin/bash
# Time between checks in seconds
SLEEPTIME=10

#IP Address or domain name to ping. The script relies on the domain being
#pingable and always available
TESTIP=203.81.71.69

#Ping timeout in seconds
TIMEOUT=2

# External interfaces
EXTIF1=eth1
EXTIF2=eth2

#IP address of external interfaces. This is not the gateway address.
IP1=10.243.49.4
IP2=10.160.65.233

#Gateway IP addresses. This is the first (hop) gateway, could be your router IP
#address if it has been configured as the gateway
GW1=10.243.49.1
GW2=10.160.64.1

# Relative weights of routes. Keep this to a low integer value. I am using 4
# for TATA connection because it is 4 times faster
W1=1
W2=1

# Broadband providers name; use your own names here.
NAME1=ADSL1
NAME2=ADSL2

#No of repeats of success or failure before changing status of connection
SUCCESSREPEATCOUNT=4
FAILUREREPEATCOUNT=1

# Do not change anything below this line

# Last link status indicates the macro status of the link we determined. This is down initially to force routing change

upfront. Don't change these values.
LLS1=1
LLS2=1

# Last ping status. Don't change these values.
LPS1=1
LPS2=1

# Current ping status. Don't change these values.
CPS1=1
CPS2=1

# Change link status indicates that the link needs to be changed. Don't change these values.
CLS1=1
CLS2=1

# Count of repeated up status or down status. Don't change these values.
COUNT1=0
COUNT2=0

while : ; do
ping -W $TIMEOUT -I $IP1 -c 1 $TESTIP > /dev/null 2>&1
RETVAL=$?

if [ $RETVAL -ne 0 ]; then
echo $NAME1 Down
CPS1=1
else
CPS1=0
fi

if [ $LPS1 -ne $CPS1 ]; then
echo Ping status changed for $NAME1 from $LPS1 to $CPS1
COUNT1=1
else
if [ $LPS1 -ne $LLS1 ]; then
COUNT1=`expr $COUNT1 + 1`
fi
fi

if [[ $COUNT1 -ge $SUCCESSREPEATCOUNT || ($LLS1 -eq 0 && $COUNT1 -ge $FAILUREREPEATCOUNT) ]]; then
echo Uptime status will be changed for $NAME1 from $LLS1
CLS1=0
COUNT1=0
if [ $LLS1 -eq 1 ]; then
LLS1=0
else
LLS1=1
fi
else
CLS1=1
fi

LPS1=$CPS1

ping -W $TIMEOUT -I $IP2 -c 1 $TESTIP > /dev/null 2>&1
RETVAL=$?

if [ $RETVAL -ne 0 ]; then
echo $NAME2 Down
CPS2=1
else
CPS2=0
fi

if [ $LPS2 -ne $CPS2 ]; then
echo Ping status changed for $NAME2 from $LPS2 to $CPS2
COUNT2=1
else
if [ $LPS2 -ne $LLS2 ]; then
COUNT2=`expr $COUNT2 + 1`
fi
fi

if [[ $COUNT2 -ge $SUCCESSREPEATCOUNT || ($LLS2 -eq 0 && $COUNT2 -ge $FAILUREREPEATCOUNT) ]]; then
echo Uptime status will be changed for $NAME2 from $LLS2
CLS2=0
COUNT2=0
if [ $LLS2 -eq 1 ]; then
LLS2=0
else
LLS2=1
fi
else
CLS2=1
fi

LPS2=$CPS2

if [[ $CLS1 -eq 0 || $CLS2 -eq 0 ]]; then
if [[ $LLS1 -eq 1 && $LLS2 -eq 0 ]]; then
echo Switching to $NAME2
ip route replace default scope global via $GW2 dev $EXTIF2
elif [[ $LLS1 -eq 0 && $LLS2 -eq 1 ]]; then
echo Switching to $NAME1
ip route replace default scope global via $GW1 dev $EXTIF1
elif [[ $LLS1 -eq 0 && $LLS2 -eq 0 ]]; then
echo Restoring default load balancing
ip route replace default scope global nexthop via $GW1 dev $EXTIF1 weight $W1 nexthop via $GW2 dev

$EXTIF2 weight $W2
fi
fi
sleep $SLEEPTIME
done

What is it that you want to do again ???

Linux Archive

I don`t know how to replace ping to tcping
can U?

If you just want to replace ping by tcping you can use

Regards,
VIKAS

Hi

Thanks for your reply
I will be came back if not OK.

Please

hi

anybody can`t help me?

Thanks

did you try vikas027's suggestion?
If yes, what went wrong?
errors....

You could search another ip to ping.
I also would increase the sleeptime, to prevent abuse

Hi
Thanks for your advice

My ISP is stupid ISP.I can`t ping any IP they was denied for Dos virus attack.tcping can replace with your command but tcping can`t support with
ping option.Do you see in this configuration?I thought you all can help me so I posted.Do you have other way ?
I appreciate your help

Thanks
Please

Hi,

If you ping the IP every 10 seconds, it will block you.
The ISP is not stupid.

Hi repo

10 seconds is we wrote for load balancing
Our ISP not allowed just 1 second.
see?

ping 10.240.3.1
PING 10.240.3.1 (10.240.3.1) 56(84) bytes of data.
From 10.240.3.1 icmp_seq=1 Packet filtered
From 10.240.3.1 icmp_seq=2 Packet filtered
From 10.240.3.1 icmp_seq=3 Packet filtered
From 10.240.3.1 icmp_seq=5 Packet filtered
From 10.240.3.1 icmp_seq=6 Packet filtered
From 10.240.3.1 icmp_seq=7 Packet filtered
From 10.240.3.1 icmp_seq=8 Packet filtered
From 10.240.3.1 icmp_seq=9 Packet filtered
From 10.240.3.1 icmp_seq=10 Packet filtered
From 10.240.3.1 icmp_seq=12 Packet filtered
From 10.240.3.1 icmp_seq=13 Packet filtered
^C
--- 10.240.3.1 ping statistics ---
17 packets transmitted, 0 received, +11 errors, 100% packet loss, time 16132ms