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Month: February 2020

[DNS MX] Verifying email records

Posted on 02/23/2020 By firstdns
Non classé

Hi im trying to use python to verify if email exists (using this code as base) import re import smtplib import dns.resolver ​ # Address used for SMTP MAIL FROM command fromAddress = ‘corn@bt.com’ ​ # Simple Regex for syntax checking regex = ‘^[_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,})$’ ​ # Email address to verify inputAddress = input(‘Please enter the … Read More “[DNS MX] Verifying email records” »

How to turn on the 2ndary DNS automatically?

Posted on 02/21/2020 By firstdns
Non classé

Hey guys I need your help! Our Office got 2 Servers. A Main Server and a Second one just to resolve the DNS, when the first one don‘t run. My Problem is that if the Main Server don‘t run, my Computer don‘t change the DNS Server automatically. I have to change it manually to get … Read More “How to turn on the 2ndary DNS automatically?” »

DNS server change by type of query

Posted on 02/21/2020 By firstdns
Non classé

Hi there, it’s possible to change dns server consulted by the type of query? I mean if it is IN A to a server and if it is to AAAA to another. Nice regards, submitted by /u/redeltaglio [link] [comments] Powered by WPeMatico

I got my own VPS and Nameservers now I have some questions

Posted on 02/19/2020 By firstdns
Non classé

Hello Guys I am an IT apprentice and have little bit more than basic knowledge in webserver, dns and that stuff. So I’ve been creating websites for the past 2-3 years and always used to get the client a shared hosting account and I also have/had one for myself. Now I decided I want my … Read More “I got my own VPS and Nameservers now I have some questions” »

CloudFlare vs DNSimple?

Posted on 02/18/2020 By firstdns
Non classé

I need a dns service because godaddy can not do alias records, I am using heroku. What dns manager do you recommend and why? Has anyone had issues with either CloudFlare or DNSimple? submitted by /u/y92a [link] [comments] Powered by WPeMatico

tool like cachecheck.opendns.com but with multiple hostnames input

Posted on 02/18/2020 By firstdns
Non classé

Do you guys know a tool that inputs a list of multiple domain names and output a list of associated server IPs ? For now I use cachecheck.opendns.com but entering hostnames one by one is time consuming. EDIT: Found it ! Get-Content C:hotnames.txt | Resolve-DNSName | Format-Table -Property “IPAddress” -HideTableHeaders | out-file IPslist.txt Note that … Read More “tool like cachecheck.opendns.com but with multiple hostnames input” »

Alias dns -breaking internet?

Posted on 02/17/2020 By firstdns
Non classé

I am using heroku and trying to use let’s encrypt for my ssl/Tls certificate. Herku is pushing me to switch my dns from godaddy to a dns provider that can support Alias records. I read this article … https://iwantmyname.com/blog/why-alias-type-records-break-the-internet And a bit concerned. 1) would using alias be bad? Is this article correct? 2) if … Read More “Alias dns -breaking internet?” »

Multiple DNS for a website

Posted on 02/14/2020 By firstdns
Non classé

Hello, Need some guidance (I’m almost noob). Domain is registered at Godaddy. DNS is managed using Cloudflare, with DNSSEC. Godaddy has Cloudflare nameservers and DS records for the website. Now, can I copy ALL dns records to Google Cloud DNS, and then add google nameservers along with Cloudflare’s in Godaddy records for my website? Can … Read More “Multiple DNS for a website” »

I wrote new DNS stress/performance testing utility with support for UDP, TCP DNS and DNS over TLS.

Posted on 02/13/2020 By firstdns
Non classé

submitted by /u/no-good-ones-left [link] [comments] Powered by WPeMatico

Internet’s safe-keepers forced to postpone crucial DNSSEC root key signing ceremony – no, not a hacker attack, but because they can’t open a safe

Posted on 02/13/2020 By firstdns
Non classé

submitted by /u/7yearlurkernowposter [link] [comments] Powered by WPeMatico

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