Script to bulk check if a domain names are available (Preferably Perl)

I can help in your project, please check PMB and our ratings/reviews to get idea of our experience. Please let me know if you have any queries.

I'm interested in that project. I'm experienced perl developer and system administrator, over 15years. I was working as a dns administrator for 4 years. I can write this script using perl POE concurrent modules with queries to DNS and whois severs.

Hi, I have experience with Perl and manipulating data from results from system run commands. What I don't understand is how 'whois' ties in, can you clarify this a bit more please? How are you expecting for this to be run? cron, manually? How often will the input file be made availabe, and how? What kind of format do you envisage the output file to have? What is the status you want to report / find? Why nslookup and not dig? The initial issue that will have to be handled is the results of the nslookup with multiple entries for a domain, yet, there is a known marker/end of the output. Another consideration is the input file, will it always be the same file name? Will there be more than one input file at a time? What is the frequency of the provisioning of the input file? I'm thinking the utility that monitors a given directory and when files come in it can queue them up for processing. These questions are designed to show you that I'm familiar with Perl and that I am familiar with the output of nslookup and dig for DNS querying. Please consider my bid and I look forwarf to hearing from you soon. Regards, Sebastien

I'd create a Perl script (to be run from the shell) for domain lookups in bulk for you. Instead of using DNS/whois to determine availability, I would suggest using a reseller API from a domain registrar instead.

I understand the project, and I've done this in the past, many many times. My favorite approach is a mix of Perl and Expect (to connect to the Whois services), and I believe I can redo it pretty fast. (My code is pretty old, dating to 96-99, if I still have it in some obscure backups). One pitfall though in using the public Whois services, is that now most of the Whois lookups are IP-limited (depending on the registries it goes from 10 to 10000 lookups a day), so processing 100s of thousands per day is practically impossible using the public whois services, although something can be figured out with multiple IPs to spread the workload (depending on your daily goals). I suspect using a third-party API service from some registrar would help break this limit barrier; but it would certainly incur additional costs (service membership and/or cost per X lookups). I have a strong experience in these matters; having written my personal Whois spiders (before there ever existed the limit checks... might be my fault, sorry), limit checks are not a problem for me though; I've worked with that on many spider projects (and still do). 20 years+ experience on Unix (BSD, Linux, Solaris), and I'm pretty confident I can have it running the same on Mac or any unix flavor. Fluent in french, english and spanish, I can also handle international character sets. Your budget is quite small though; I would prefer bidding 500-800$ on such a project. But I can make do with it, if you don't require too much post-production support.

Have solved the task before Perl Dns and whois checking with glue recors tests

I can do this, perl is my chosen scripting language, also I am excellent at regex. I'd just use regex for this, parsing information and getting what you need.

Hey, I have 6 Years of experience in Perl and can deliver the script in 2 days with an additional functionality. Thanks Abhishek

I have extensive experience in Perl, and using Perl to develop high-performing network applications. Please check your PM on my thoughts about this problem.