My server is under domain botoholic.com. I've started a dedicated hosting plan with the company Superhost.pl in Poland. My domain provider is Namecheap.com and my DNS is configured on the dedicated server with following nameservers: ns1.botoholic.com A 220.127.116.11 ns2.botoholic.com A 18.104.22.168
Everything has worked fine since the beginning until 2:00am GMT+1 13.02.2012. I woke up to see that my server is down. Probably huge CPU load prevented anyone from accessing any of it's services for 12 hours. I've remotely restarted the server and it went back up. Then I could see bandwidth usage of my server gradually going down as if it was getting less and less visits every minute.
After 2 hours I found out that my domain botoholic.com can't be resolved. From that moment it's DNS hell and it's been 18 hours since that happened and I decided to write a post about it just to see if maybe anyone can help with some advice.
Here is proof from just-ping.com that my domain can't be resolved globally:
Strange thing is my nameservers ns1.botoholic.com and ns2.botoholic.com seem to be mainly working and are being resolved, but anyone I ask say they can't resolve their IPs.
One thing is that I have currently no idea why suddenly my server went down at 2:00am and then right after it went back up, the DNS went crazy and my domain cannot be resolved globally for some reason. Could it be due to my server getting compromised, DDoS and parent nameservers blacklisting it?
www.intodns.com/botoholic.com - shows that my nameservers can't be resolved which makes no sense as I can resolve them with no problems using 'dig' from my place and they return proper records.
I haven't changed any configuration on my server for a month, so I have no idea what could have caused the DNS problems.
Do you have any idea what I should check or did you have any similiar experience?
UPDATE: I've just received information from tech support that it's the hard disk malfunction. They are backing up data and replacing hardware now. Hopefully now this nightmare will end.
UPDATE2: Ok guys, the hard disk was replaced and everything is working perfectly fine now. Who would've thought. Thanks for help!