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12fa03b660
A tool to check dead domain in blocklist or deadlist Thanks to: https://gist.github.com/chrisdavidmiles/5aa1b3c7194bde4c7aa34895c1e497d6
33 lines
1.3 KiB
Bash
33 lines
1.3 KiB
Bash
#!/bin/bash
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# Bulk DNS Lookup
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# Credit: https://gist.github.com/chrisdavidmiles/5aa1b3c7194bde4c7aa34895c1e497d6
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# Generates a CSV of DNS lookups from a list of domains.
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## Command to format your blacklist properly
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## cat blacklist.txt | grep -v '^#' | tr -s '\n' '\n' | grep -Ev "^$" | grep -o '^[^#]*' > tmp_blacklist
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# File name/path of domain list:
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domain_list='blacklist.txt' # One FQDN per line in file.
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#
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# IP address of the nameserver used for lookups:
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ns_ip='1.0.0.1' # Is using Cloudflare's 1.1.1.1.
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#
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# Seconds to wait between lookups:
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loop_wait='1' # Is set to 1 second.
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echo "Domain name, IP Address, IP PTR, IP NetName (WHOIS)"; # Start CSV
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echo > invalid.txt
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for domain in `cat $domain_list | grep -v '^#' | tr -s '\n' '\n' | grep -Ev "^$" | grep -o '^[^#]*' ` # Start looping through domains
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do
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ip=`dig @$ns_ip +short $domain |tail -n1`; # IP address lookup
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if [ ! -n "$ip" ] # If the IP is null (expired or invalid domain)
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then # Then
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echo "$domain,No DNS,," >> invalid.txt; # Write "No DNS" in the IP column
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else # And if an IP is found perform a PTR and NetName lookup
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echo -en "$domain,$ip,"`dig @$ns_ip +short -x $ip |xargs`",";
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whois $ip |grep -i 'netname' |awk '{print $NF}'|xargs;
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fi
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sleep $loop_wait # Pause before the next lookup to avoid flooding NS
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done;
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