Tag Archives: DNS

Certificate Transparency and unauthorized certificates

I own a domain which was bought a few months back which is managed by CloudFlare’s service in DNS-only mode. As I intended to only use CloudFlare’s DNS service, I disabled every option except the DNS related features. You can imagin the surprise to see certificates issued for my domain without my knowledge. Continue reading

Posted in Security, Web technologies | Tagged , , , , , | 1 Comment

Migrate Baikal with minimal downtime

Baikal is a CalDAV and CardDAV implementation based on PHP and MySQL. This post will explain how to migrate a Baikal installation from one server to another with minimum downtime. DNS entries can take up to 24 hours to be propagated to all DNS servers around … Continue reading

Posted in DNS | Tagged , , | Comments Off on Migrate Baikal with minimal downtime

Migrate WordPress site with minimal downtime

Migrating a Wordpress installation from one server to the other sounds like a simple task. Just move the files, copy the database for Wordpress and lets go. But when you start dealing with the DNS entries the whole story gets tricky. Continue reading

Posted in DNS, Security | Tagged , , , | Comments Off on Migrate WordPress site with minimal downtime

SPF and multiple domain mailserver

We all hate spam, right? I think you all know the annoying emails, but what is worse than receiving emails? How about when emails you send to someone are for some reason detected as spam? This happened to me recently. … Continue reading

Posted in DNS, Linux Administration, Mailserver | Tagged , , , , , | 1 Comment