Network Security

Hi,I would like to limit scanning and syn flooding on ASA. I am thinking I can restrict any outside host to only be able to initiate maximum 500 tcp connections total to inside host at a given time it would help prevent syn flood and port scan attack...

Hi,I have configured threat-detection on ASA and it does not seem to be doing shun to IP addresses that are doing scanning or syn flooding. I have the following config. Any suggestions why this may not be working? I have  excluded my internal public ...

I'm trying to set a NAT rule to allow traffic from ports 20000-21000 to a server on the Inside. When I apply the changes in ASDM I receive this warning:   [WARNING] nat (Inside,Outside) after-auto 1 source static [host object] interface service PAS...

Hi All, I have got an new ASA 5505 and trying to config with ASDM, following all the procedure in the startup guide, but still cannot connect to ASDM, the firefox showing "ssl_error_no_cypher_overlap", and the CLI config show below, please help: cisc...

Hello,I was wondering if there was a way to have two syslog hosts configured on a cisco asa and have diff. severity of logs go to one host.. and another severity of logs to the other host.any info would be helpful.Thanks.

I have an unused 5525-X , what is the best version to use? The download page seems to recommend either 9.1.6 or 9.2.3. Is there a reason to not go with the latest, 9.4.1? Thanks.

Cisco asa5512 with:Cisco Adaptive Security Appliance Software Version 9.4(1)Device Manager Version 7.4(2) We can access the gui but the asdm process on the Mac spikes and the application hangs.i have attached screenshots of the steps before the gui h...

Hi, I am trying to block a Web page, I have followed this guide. http://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/100513-ASARegexp.htmlBut unfortunately that blocks (almost) all web pages. What I mean wit...

Hi,i'm new here and i'm peased to join your community.I've an issue on a pair of PIX 5525 8.0(3)12 in Failover Active/Standby Config.If i do a show failover state mi output is the following:                       State                         Last Fa...

Hi All,I am newbie on ASA configuration. The network topology should be below Internet -- (Outside) ASA 5520 (Inside) -- Router -- MPLS Connection In my case, there is a solarwind server at MPLS connection side and responsible to collecting syslog of...

Hi,I want to forward Security Intelligence Events to Syslog server, is it possible to do from Virtual Defense Center.I also wanted to forward system logs to Syslog server but it seems you cant forward it to syslog server and how to access Sourcefire ...

Dears,I have ASA 5540 which was working absolutely perfect all of the sudden it went power off , i disconnected from the network and i saw any physical failures  but i couldn't found anything and i kept it ON under observation for 12 hrs out of the n...