Apache Requests

[frank.temi () gmail com]

Hi there, since last Thursday my site has been getting some wierd homepage requests and I hope someone could help me 
understand what is happening for it is almost like a DOS since it is causing major issues.

I have a load balancer that balances the load between 3 servers.  Each of the servers run mod perl and apache.  

Here are the logs:

24.A.A.A - - [04/Jul/2005:01:15:17 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1; .NET CLR 1.1.4322; Hotbar 4.6.1)"
24.A.A.A - - [04/Jul/2005:01:15:17 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1; .NET CLR 1.1.4322; Hotbar 4.6.1)"
24.A.A.A - - [04/Jul/2005:01:15:17] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; 
SV1)"
24.B.B.B - - [04/Jul/2005:01:15:47 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1)"
24.B.B.B - - [04/Jul/2005:01:15:47 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1)"
24.B.B.B - - [04/Jul/2005:01:15:48 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1)"
207.C.C.C - - [04/Jul/2005:01:15:49 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 
NT 5.1)"
207.C.C.C - - [04/Jul/2005:01:15:49 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 
NT 5.1)"
207.C.C.C - - [04/Jul/2005:01:15:49 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 
NT 5.1)"
207.C.C.C - - [04/Jul/2005:01:15:49 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 
NT 5.1)"
207.C.C.C - - [04/Jul/2005:01:15:49 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 
NT 5.1)"
24.D.D.D - - [04/Jul/2005:01:15:51 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1)"
24.D.D.D - - [04/Jul/2005:01:15:51 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1)"
24.D.D.D - - [04/Jul/2005:01:15:51 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1; SV1)"
24.D.D.D - - [04/Jul/2005:01:15:51 -0600] "GET / HTTP/1.1" 200 24920 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 
5.1;

As you can see there are 4 different people calling the homepage however each request is not done just once but 
multiple times at the same exact time.  The page uses a database and connections are getting maxed out.

Does anyone recognize this issue at all?  Should I be concerned with it?


Thanks a lot