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Barry-xlovecam · 10-18-2017, 09:56 PM

I thought to a fast way to get an IP CIDR

Code:

$ whois  173.208.249.226 |grep 'CIDR:'|cut -d':' -f2|sed -e 's/^/ufw deny from /g' -e 's/            / /g' -e 's/$/  to any;/g'

#returns
ufw deny from 173.208.249.224/29  to any;
ufw deny from 173.208.128.0/17  to any;

Use the smaller CIDR (narrower) of just the ip's if you dont want to block the whole datacenter (/18 to /24)

10-18-2017, 09:56 PM
Barry-xlovecam It's 42 Industry Role: Join Date: Jun 2010 Location: Global Posts: 18,083	I thought to a fast way to get an IP CIDR Code: $ whois 173.208.249.226 \|grep 'CIDR:'\|cut -d':' -f2\|sed -e 's/^/ufw deny from /g' -e 's/ / /g' -e 's/$/ to any;/g' #returns ufw deny from 173.208.249.224/29 to any; ufw deny from 173.208.128.0/17 to any; Use the smaller CIDR (narrower) of just the ip's if you dont want to block the whole datacenter (/18 to /24)