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closing unwanted open ports using scripts

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# 1  
Old 11-14-2010
closing unwanted open ports using scripts
i have a text file i.e file1.txt which shows open ports on particular system. i have another text file i.e file2.txt which shows a list of allowed ports on a system. for eg:
file2.txt
22/tcp ssh
23/tcp telnet.
can i have a script which would compare these text files ,file1 and file2 and close out all ports which r not allowed. i know only one way off turning off particular port or sevice i.e by commenting out particular service in etc/inetd.conf file on linux system. Image
# 2  
Old 11-14-2010
I posted an answer in the other thread:
https://www.unix.com/shell-programmin...xt-file.html#5
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