I have been working with Mojolicious for a few weeks now. My main goal is to create a ReST API to send and receive DNS…
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Published November 1, 2016
Fast-Flux domain: a very clear example
This is a very clear example of what is Fast-Flux Domains. at ANSWER SECTION 1) low TTL value (10 seconds) 2) different networks /16 3)…
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Published March 7, 2016
Net::DNS::Reputation::HoneyProject
I have been working with DNS reputation for a while, and sometimes I need to confirm my questions/doubts/issues using third party applications including Project Honey…
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Published February 29, 2016
Net::DNS::Reputation::TeamCymru
I was looking for a simple method to send DNS requests to Team-Cymru.org services. Last year, I created another “Perl module” based on Net::DNS::Dig that…
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Published February 7, 2016
Checking IP reputation on DNS Blacklists
Checking for the IP reputation is not a new idea, however it is useful when one wants to know that an IP is safe for…
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Published February 6, 2016
Net::DNS::Simple new version
Added option which allows user to specify distinct nameservers to run the name resolution. Net::DNS::Simple documentation is updated. use Net::DNS::Simple; my %config = ( …
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Published February 4, 2016
Making DNS queries using Perl really simple
That is it! #!/usr/bin/perl use Net::DNS::Simple; my $res = Net::DNS::Simple->new(“www.google.com”, “MX”); $res->print_domain(); I have been working with DNS for while using Perl and Net::DNS module.…
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Published December 6, 2009
Non-authenticated data OK: Non-authenticated data is acceptable
Geralmente as perguntas DNS são bem formadas, mas como tudo tem sua exceção, veja a seguinte consulta DNS 00:00:13.372296 IP CLIENTE_DNS.43525 > SERVIDOR_DNS.53: 14737% [1au]…
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Published November 17, 2009
DNS tcpdump hacks
O tcpdump é o verdadeiro canivete suíço de todo o administrador de sistemas e operadores de rede. A partir dos filtros de pacotes Berkley (Berkeley…
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Published June 14, 2009
SPAM quase bonitinho. Mas ainda é ordinário. Parte II final
Comentei em um post anterior sobre a utilização do registro de recurso do tipo PTR para reduzir a quantidade de mensagens não desejadas. No entanto,…
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