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8.2

Solution did NOT work, regretfully.

Asked by joetac in Bourne Shell (sh), Red Hat Linux

Tags: Simple shell script, checking a list for a match from a

When testing just now, I discovered that the solution did not work.

Here's a summary:

The /root/xahost.txt  file contains this short list:

googlebot.com
google.com
msn.com
verisign.net

Here's the test version of the script, it is named "xfindhost.sh":

--------------------
#!/bin/bash
ACCEPTED=/root/xahost.txt

if [ $# -ne 1 ]
then
   echo "Usage: $(basename $0) [IP address]" >&2
   exit 1
fi

if ! host $1 | grep -qf $ACCEPTED
then
#   /etc/csf/csf.pl -td $1 600
echo "blocked"
fi

--------------------

I can put in a google.com IP, like this:
./xfindhost.sh 74.125.45.100

Or I can put in the IP address of s spammer in Korea, like this:
./xfindhost.sh 61.247.221.92

And I get the exact same result, that is, the script does not give me the "blocked" echo, so the IP would never be blocked, no matter what.
 
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[+][-]06/11/09 09:09 PM, ID: 24609062Expert Comment

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[+][-]06/11/09 10:17 PM, ID: 24609315Author Comment

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[+][-]06/11/09 11:13 PM, ID: 24609578Accepted Solution

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About this solution

Zones: Bourne Shell (sh), Red Hat Linux
Tags: Simple shell script, checking a list for a match from a
Sign Up Now!
Solution Provided By: joetac
Participating Experts: 2
Solution Grade: A
 
[+][-]06/11/09 11:18 PM, ID: 24609612Expert Comment

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