If you are seeing queries for this domain, than you are likely participating in DNS Amplification attacks and your DNS server is probably reachable from the internet and has recursion enabled.
If you are seeing responses for this domain.. unlucky. You are currently beeing DDOS-ed! Good luck.
IPtables:
There are two iptable rules available. If your distribution supports Iptables 'u32' module pick this one, otherwise use the 'string' rule.
U32:
iptables --insert INPUT -p udp --dport 53 -m u32 --u32 "0x28&0xFFDFDFDF=0x0547544d && 0x2c&0xDFFFFFDF=0x4c320343 && 0x30&0xDFDFFF00=0x4f4d0000" -j DROP -m comment --comment "DROP DNS Q gtml2.com"
More U32 rules can be found here:
https://github.com/smurfmonitor/dns-iptables-rules/blob/master/domain-blacklist.txt
String:
iptables --insert INPUT -p udp --dport 53 -m string --from 40 --to 51 --algo bm --hex-string '|0567746d6c3203636f6d00|' -j DROP -m comment --comment "DROP DNS Q gtml2.com"
More Iptables rules for the STRING module can be found here:
https://github.com/smurfmonitor/dns-iptables-rules/blob/master/domain-blacklist-string.txt
Source:
No IP source for this domain
Name server:
;; ANSWER SECTION:
gtml2.com. 3600 IN NS ns1.namecity.com.
gtml2.com. 3600 IN NS ns2.namecity.com.
;; ADDITIONAL SECTION:
ns1.namecity.com. 172800 IN A 62.128.193.35
ns2.namecity.com. 172800 IN A 84.22.161.171
Response:
A 2
MX 253
NS 2
SOA 1
TXT 1
Rsize 6260
Whois
Whois Server Version 2.0
Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.
Domain Name: GTML2.COM
Registrar: TUCOWS DOMAINS INC.
Whois Server: whois.tucows.com
Referral URL: http://domainhelp.opensrs.net
Name Server: NS1.NAMECITY.COM
Name Server: NS2.NAMECITY.COM
Status: clientTransferProhibited
Status: clientUpdateProhibited
Updated Date: 18-apr-2013
Creation Date: 21-may-2007
Expiration Date: 21-may-2014
>>> Last update of whois database: Sat, 19 Oct 2013 21:17:32 UTC <<<
NOTICE: The expiration date displayed in this record is the date the
registrar's sponsorship of the domain name registration in the registry is
currently set to expire. This date does not necessarily reflect the expiration
date of the domain name registrant's agreement with the sponsoring
registrar. Users may consult the sponsoring registrar's Whois database to
view the registrar's reported date of expiration for this registration.
The Registry database contains ONLY .COM, .NET, .EDU domains and
Registrars.
Registrant:
CommuniGator Ltd
The old Byre
Peper Harow
Godalming, SURREY GU8 6BQ
GB
Domain name: GTML2.COM
Administrative Contact:
Yates, Aaron aaron.yates@communigator.co.uk
The old Byre
Peper Harow
Godalming, SURREY GU8 6BQ
GB
+44.1483411911
Technical Contact:
Yates, Aaron aaron.yates@communigator.co.uk
The old Byre
Peper Harow
Godalming, SURREY GU8 6BQ
GB
+44.1483411911
Registration Service Provider:
Internetters Ltd, hostmaster@internetters.co.uk
+44.3701709170
+44.1419316785 (fax)
http://www.internetters.co.uk
Registrar of Record: TUCOWS, INC.
Record last updated on 18-Apr-2013.
Record expires on 21-May-2014.
Record created on 21-May-2007.
Registrar Domain Name Help Center:
http://tucowsdomains.com
Domain servers in listed order:
NS1.NAMECITY.COM
NS2.NAMECITY.COM
Domain status: clientTransferProhibited
clientUpdateProhibited
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