I am an avid follower of the great http://www.orablogs.com - (broken link) Orablogs site and was saddened to notice that it has not been reachable for the last couple of days. I don't know if this is a global issue or a local one (I am UK based). I also noticed that someone had posted a question on comp.databases.oracl.server today asking http://groups-beta.google.com/group/comp.databases.oracle.server/browse_frm/thread/7a6c4852c519666b/3f771d58c22f030b?q=orablogs&rnum=1&hl=en#3f771d58c22f030b - (broken link) orablogs down?. I replied to that post on C.D.O.S. that it seems to be a DNS issue and also I suggested an alternate way to see Brian's site. I have emailed Brian to ask what the issue is as well.
The problem seems to be with DNS servers. But first some security background. I like my posts to at least have some security content! - I thought I would check into Brian's site and see if i could see where the problem lies. I did a
ping from my PC on www.orablogs.com and got no results. I then tried
tracert, to see if I could see where the problem lies, again no result. So I next thought about accessing orablogs by using instead the IP Address instead of the domain name. First I need the IP address. I like
the Netcraft site as it gives some great info about sites. Kevin Mitnick mentions this site in his book
The Art of Intrusion : The Real Stories Behind the Exploits of Hackers, Intruders & Deceivers
- this is where i found it from a while ago. Netcraft.com has a search box in the top left corner where you can check out a site�s hosting details. I entered orablogs.com and found out the IP address and also noted that orablogs has had its server details changed a few times this year. It is interesting to note that the
nameserver,
DNS admin and
reverse DNS are marked as not known. I checked my own site and saw these details are present. This confirmed my suspicions. So i tried to access orablogs with
http://83.170.75.145/orablogs/ and found that it works. I was able to view orablogs. Then i thought about DNS issues and used the site www.dnsreport.com and entered orablogs.com, the report shows some warnings and failures. As I said I have asked Brian what the problems are.
This is a good issue to look into; the moral of the story is that there are plenty of sites out there on the net that can divulge huge amounts about your own site or about anyone else�s. This information is effectively public. If you run a site or host an Oracle database to the Internet then beware of what can be found out about it.