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Duc Tran
Duc Tran

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Simple tool check informations from domain name with golang

#go #ip #tooling #docker

LOOKUP

LOOKUP is a simple tool check IP informations, CNAME, NS(Name Server), A records, MX records, TXT records with Go.

 /\/| __ /\/| __ |/\/ /_/ |/\/ /_/ ___ ___ / _ \  / _ \ | (_) | | (_) | \___/ \___/
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Full source code in here

Fundamental

  • CNAME: is a Canonical Name Record or Alias Record. A type of resource record in the Domain Name System (DNS), that specifies that one domain name is an alias of another canonical domain name.

  • A and AAAA Record: An A and AAAA record are actually primary DNS records. They associate a domain name with a specific IP address.

  • TXT Record : A TXT record (short for text record) is a type of resource record in the Domain Name System (DNS) used to provide the ability to associate arbitrary text with a host or other name, such as human readable information about a server, network, data center, or other accounting information.

  • MX(Mail Exchanger) Record: A mail exchanger record (MX record) specifies the mail server responsible for accepting email messages on behalf of a domain name. It is a resource record in the Domain Name System (DNS). It is possible to configure several MX records, typically pointing to an array of mail servers for load balancing and redundancy.

  • NameServer: Nameserver is a server on the internet specialized in handling queries regarding the location of a domain name's various services. Nameservers are a fundamental part of the Domain Name System (DNS). They allow using domains instead of IP addresses.

Install

First, install golang.

Then, clone from soucre code and setup:

git clone https://github.com/ductnn/lookup.git cd lookup go get
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Usage

Without docker

Run command:

go run main.go # Enter domain you want to check. # Example google.com
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Check result:

CNAME



TXT records



IP informations



Name Servers



MX records



With docker

Check Dockerfile and build with command:

docker build -t <your-image> -f Dockerfile .
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or pulls my image in here, and run container

docker run -it ductn4/loo
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With file binary

You can down file binary in here for running tool:

# Download file bin to your local chmod +x loo ./loo # And check result ...
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Test with facebook.com:

➜ bin git:(master) ✗ ./loo /\/| __ /\/| __ |/\/ /_/ |/\/ /_/ ___ ___ / _ \  / _ \ | (_) | | (_) | \___/ \___/ Enter subdomain or domain name: facebook.com CNAME +---------------------+--------------+---------------+ | DOMAIN OR SUBDOMAIN | DOMAIN | CNAME | +---------------------+--------------+---------------+ | facebook.com | facebook.com | facebook.com. | +---------------------+--------------+---------------+ TXT records +--------------+----------------------------------------------------------------------+ | DOMAIN | TXT RECORDS | +--------------+----------------------------------------------------------------------+ | facebook.com | google-site-verification=A2WZWCNQHrGV_TWwKh6KHY90tY0SHZo_RnyMJoDaG0s | + +----------------------------------------------------------------------+ | | v=spf1 | | | redirect=_spf.facebook.com | + +----------------------------------------------------------------------+ | | google-site-verification=sK6uY9x7eaMoEMfn3OILqwTFYgaNp4llmguKI-C3_iA | + +----------------------------------------------------------------------+ | | google-site-verification=wdH5DTJTc9AYNwVunSVFeK0hYDGUIEOGb-RReU6pJlY | +--------------+----------------------------------------------------------------------+ IP Informations +--------------+------------------------------------+------------------+------------------+------------------------+ | DOMAIN | IP | CITY AND COUNTRY | LOCATION | ORGANIZATION | +--------------+------------------------------------+------------------+------------------+------------------------+ | facebook.com | 31.13.75.35 | Hong | 22.2783,114.1747 | AS32934 Facebook, | | | | Kong, HK | | Inc. | + +------------------------------------+------------------+------------------+ + | | 2a03:2880:f15a:83:face:b00c:0:25de | Dublin, | 53.3331,-6.2489 | | | | | IE | | | +--------------+------------------------------------+------------------+------------------+------------------------+ Name Servers +--------------+--------------------+ | DOMAIN | NAME SERVERS | +--------------+--------------------+ | facebook.com | b.ns.facebook.com. | + +--------------------+ | | d.ns.facebook.com. | + +--------------------+ | | a.ns.facebook.com. | + +--------------------+ | | c.ns.facebook.com. | +--------------+--------------------+ MX Records +--------------+-----------------------------+ | DOMAIN | MX RECORDS | +--------------+-----------------------------+ | facebook.com | smtpin.vvv.facebook.com. | | | 10 | +--------------+-----------------------------+
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Okkk! Thank you for reading 😍 🤩 🥳

Top comments (2)

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blakegates profile image
blakegates •

This is awesome! Love the idea.

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ductnn profile image
Duc Tran •

Thank you :D