sshd opening thousands of connections

When I start sshd on my linux server I am having thousands of connections opened.  This in turn is overwhelming my firewall and causing web requests to be denied.  When I stop sshd all of the connections go away and the site operates as normal.  Below is an example of the thousands of lines that appear when I run a netstat -ao.  

This is my first post here so if I am missing details I apologize in advance and would be more than happy to provide any details requested.

Thanks in advance for your assistance.
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:17923 TIME_WAIT   timewait (49.01/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18179 TIME_WAIT   timewait (43.08/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18944 FIN_WAIT2   timewait (51.41/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18688 TIME_WAIT   timewait (43.52/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18432 TIME_WAIT   timewait (49.14/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:17152 TIME_WAIT   timewait (30.96/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:16896 TIME_WAIT   timewait (30.90/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18176 TIME_WAIT   timewait (49.07/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:17920 TIME_WAIT   timewait (49.00/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:17408 TIME_WAIT   timewait (31.01/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18945 FIN_WAIT2   timewait (51.44/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18433 TIME_WAIT   timewait (43.13/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:18689 TIME_WAIT   timewait (40.21/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:16897 TIME_WAIT   timewait (6.89/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:17153 TIME_WAIT   timewait (30.89/0/0)
tcp        0      0 mydomain.com:ssh           72.d4.1343.static.the:17921 TIME_WAIT   timewait (42.94/0/0)

Open in new window

lucideousAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ravenplCommented:
Looks like somebody tries simple DoS from 72.d4.1343.static.the... address
run netstat -an
to get the real, IP. Block it within Your firewall, get IP responsible from www.ripe.net whois, report abuse.
Also read http://www.linux-noob.com/forums/index.php?showtopic=1829
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
lucideousAuthor Commented:
Thanks - this is the issue.  I have a new problem now.  I will post a new question.  Thank you so much.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux

From novice to tech pro — start learning today.