Tag Archives: dns

Whitelist your own computer in fail2ban

Fail2ban is a great "dynamic" firewall for servers that is installed by default on many of our VPSs, and we can install it on your VPSs at your request. It protects against brute-force attacks, where an attacker is trying to … Continue reading

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DNS amplification DoS attacks

If you are running a DNS server, then you need to check it is not being co-opted into 'DNS amplification attacks'. Random nasty servers (typically part of virus created bot-nets) send your DNS server a short request but use a … Continue reading

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Setting up Domains Keys (DKIM) on Postfix

This is a quick and fairly painless way of setting up DKIM, on a postfix server. DomainKeys Identified Mail (DKIM) is a method for associating a domain name to an email message, thereby allowing a person, role, or organization to … Continue reading

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Wildcard DNS queries added to our DNS API

We are updating our DNS API (Zonomi and RimuHosting) to support a name/host argument of **.example.com (where example.com is your DNS zone).  This will find any DNS records ending with example.com. This could be used, for example, in providing your … Continue reading

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Migrating VPS with virtualmin – Multiple DNS changes

We have had a customer move from one host to a new one with Virtualmin, this is usually ok, except in this case he had DNS hosted on his own VPS, most of it pointing to his old IP address. … Continue reading

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Pingability Facelift

While I was kicking back camping in Yosemite Justin here has been 'messing about' with CSS on our Pingability web check and alert service.  Bringing it from my 2003 design to something a little more contemporary.  Thanks, Justin. -- Pingability … Continue reading

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66% off .org domain name registration anyone?

We use gandi.net internally for some of the domains we have.  Gandi have given me a few 'promo codes' for 66% off .org domains.

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Did you know we have a DNS API?

Seems some cool features get lost, and only staff know about them rather than the customers. I thought I'd point out to people we have an API for our DNS. This can be used by scripts for adding domains to … Continue reading

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DNS import script project. Any takers?

A bit of a cheeky request... I'm looking for something that will import a BIND zone file in our name servers. Anyone interested in having a crack at that? I'm imagining something like a bash/perl/ruby/python script that parses a BIND … Continue reading

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Remember to Check Domain Expiration Dates

Today's post isn't anything technical; it's somewhat of a public service announcement instead. Your domain registrar likely emails you when your domain is nearing the end of its life (at least the end of its life in your possession). What … Continue reading

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