Too many server errors

Although this blog is hosted on blogger.com I also have many blogs/forums/other sites that are hosted on my VPS at servint. From yesterday evening I am getting too many errors from the server and I had 3 downtimes since then. May be I have done something stupid or the server is being bombarded from some hackers.

Few of my blogs got hacked about an year ago and since that time my blogs are constant target. This may be another attack on my server.

Servint has been really good at helping me out of the downtimes and now they are checking what is the actual cause of my servers being behaving like this.

Lets hope there is nothing serious.