Solved

Firewall reporting a SYN attack

Posted on 2013-01-29
7
239 Views
Last Modified: 2013-02-25
We have a single sbs2011 server running exchange with AVG, and we noticed that everything, particulalry our internet service is running slowly. On checking our Firewall logs we noticed that it is reporting a SYN attack, which may explain the speed issues.

I dont know the first thing about this kind of attack, so could anyone please provide a step by step approach on how to deal with this?

Many thanks.
0
Comment
Question by:nigelbeatson
  • 4
  • 3
7 Comments
 
LVL 8

Expert Comment

by:R_Edwards
ID: 38830676
what type of firewall are you using?
0
 

Author Comment

by:nigelbeatson
ID: 38831016
it is a Cisco ASDM 6.2(1)
0
 
LVL 8

Accepted Solution

by:
R_Edwards earned 500 total points
ID: 38831416
can you post part of the log that shows the SYN attack?
0
How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

 

Author Comment

by:nigelbeatson
ID: 38888492
On site today, and will try to provide the requested info.

Many thanks.
0
 

Author Comment

by:nigelbeatson
ID: 38924794
Problem appears to have resolved itself? Ie no further problems have been encountered.

Many thanks
0
 
LVL 8

Expert Comment

by:R_Edwards
ID: 38925599
good to hear.
0
 

Author Closing Comment

by:nigelbeatson
ID: 38925608
Thanks for your assistance
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

In the event you manage a Small Business Server 2003, and you are audited for PCI compliance, there are several changes you must make in order to pass the audit. I can take no credit for discovering any of these fixes or workarounds, but there is no…
I work for a company that primarily works with small businesses as their outsourced IT vendor. As such the majority of these customers utilize some version of Small Business Server. Due to the economics of running a small business, many of these cus…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…
When you create an app prototype with Adobe XD, you can insert system screens -- sharing or Control Center, for example -- with just a few clicks. This video shows you how. You can take the full course on Experts Exchange at http://bit.ly/XDcourse.

746 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now