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Tag Archives: information security

Forward-confirmed reverse DNS (FCrDNS) Tool

24 Tuesday May 2016

Posted by egarcia in Data Mining, Human-Computer Interaction, Internet Engineering, IR Tools, Programming, Queries, Search Engines Architecture Course, Web Mining Course

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Tags

data miners, information security, miner, minerazzi, tools

This tool is available at

http://www.minerazzi.com/tools/fcrdns/lookups.php

The tool allows you to do Forward and Reverse DNS lookups. Given a host name, the tool finds its IP. Conversely, given an IP the tool finds the corresponding host.

Forward DNS lookup resolves a host name to an IP address (A record). The process of reverse resolving an IP address uses the pointer DNS record type (PTR record).

Thus, the tool does Forward-confirmed reverse DNS (FCrDNS) lookups. This is a networking parameter configuration where a given IP address has both forward (name-to-address) and reverse (address-to-name) Domain Name System (DNS) entries that match each other.

Unlike similar tools which do Forward/Reverse DNS lookups on a single host, our tool does lookups on multiple hosts, saving users time and effort.

To use the tool, enter one host name (or IP) per line, ending each line by pressing the Enter key.

Forward DNS lookups are faster than Reverse DNS lookups so for the latter you may want to do a few checks at once.

Depending on DNS server configurations, lookups with or without the www alias can produce dissimilar results. For instance yahoo.com with and without www returns different results.

Applications

Our tool can be used to identify Internet service providers (ISPs) who do not provide properly matching DNS and rDNS records. It can also be used to find shared hosting and, when misconfigured, forwarders information leaks.

FCrDNS verification can also be used for whitelisting purposes because spammers and phishers cannot usually by-pass this verification when they use zombie computers for email spoofing. That is, the reverse DNS might verify, but it will usually be part of another domain than the claimed domain name.

Revamping MUST tool with DIRA

28 Monday Dec 2015

Posted by egarcia in Data Mining, Human-Computer Interaction, IR Tools, New Information Retrieval Paradigms, Programming, Queries, Scripts, Search Engines Architecture Course, Software, Web Mining Course

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Tags

Algorithms, data miners, Data Mining, DIRA, Dynamic Indexing, Dynamic Retrieval, information retrieval, information security, ir, miner, minerazzi, miners, news, text mining, tools

We have redesigned our Minerazzi URL Scoring Tool (MUST) with a novel algorithm, initially implemented with the IANA TLD Checker another of our recent tools.

MUST checks the initial and final status response codes, urls, and ips upon redirections and whether the target resource is accessible.

The tool uses our Dynamic Indexing and Retrieval Algorithm (DIRA) which so far avoids program timeout errors, allowing the processing of a large number of URLs, while letting users monitor its progress. All this is done without resourcing to JQuery, JavaScript, or cron jobs.

These tools demonstrate that DIRA solves an important productivity-blocking problem that plagues many processes and software tools written with scripting languages like PHP: How to avoid PHP timeout errors while allowing the processing of a large number of Web resources and letting users monitor its progress.

We believe that DIRA can be a game changer in a production and database development setting.

As retrieval time is slaved to the response time of remote hosts, you may want to do other tasks while the tool is working, particularly if submitting a large number of URLs.

To avoid abuses, we have limited URLs to a maximum of 100 per submission. You may also want to run one web browser instance of the tool at a time per machine IP, to avoid unexpected results.

Enjoy these tools and Happy Holidays!

 

MTU, MSS, and IP Packet Fragmentation Legacy Tutorials are Back!

15 Tuesday Dec 2015

Posted by egarcia in Data Mining, Hacking, Homeland Security, IR Tutorials, Legacy Posts, Miscellaneous, News, Programming

≈ 3 Comments

Tags

Data Mining, information security, IP Packet Fragmentation, IT tutorials, minerazzi, miners, MTU and MSS

Two new legacy tutorials aimed at those data mining information security and written way back, in 2009, are now available at
http://www.minerazzi.com/tutorials/

MTU and MSS Tutorial

This tutorial covers maximum transmission unit (MTU), maximum segment size (MSS), PING, NETSTAT, and fragmentation.

IP Packet Fragmentation Tutorial

This tutorial covers IP fragmentation, data payloads, IP packet and header lengths, maximum transmission unit (MTU), and fragmentation offset (FO).

Enjoy them!

The Intelligence, Security, and Assurance (ISA) Miner

05 Thursday Mar 2015

Posted by egarcia in Data Mining, Graduate Courses, Homeland Security, IR Tools, News, Programming, Software

≈ Leave a comment

Tags

Data Mining, information assurance, information intelligence, information security, minerazzi, miners

The Intelligence, Security, and Assurance (ISA) collection is a new miner built with Minerazzi (http://www.minerazzi.com).

Use it to find resources relevant to information intelligence, security, and assurance.

Search by software tools, companies, and government agencies, or by graduate school programs offering courses on these subjects.

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