11
votes
1answer
477 views

What is an open DNS resolver, and how can I protect my server from being misused by hackers?

I don't have the strongest background in computer security, but yesterday one of my company servers was shut down by our host. It's a server assigned a public IP where I host several web-service ...
1
vote
3answers
353 views

Possible DNS hack or Unknown reason causing some users to redirect to a porn website?

I have website, which is a very popular website, but from last two weeks several customers complain to me that my site was hacked and redirected to a porn website, but whenever i check the website i ...
2
votes
1answer
78 views

why does adding a DNS root zone to the URL sometimes result in security errors?

Disclaimer: I've only witnessed this behaviour on chrome. adding the rightmost dot to a URL as in facebook.com. should result in a fully qualified domain name (FQDN) and hence I wouldn't expect any ...