Network Security

I am new to networking and have just been given the task to migrate our old email server to Exchange 2010.  Part of the process requires opening ports 25 and 443 for an the ip of the new machine.. Can anyone help with what I am hoping to be an easy w...

What would be the easiest way to do the upgrade?  I think I would have to do two interim upgrades first so is it possible to just reimage the device with 8.0(4) and apply the configurations from there?  Sorry for the newb question but I don't ever de...

Hi,   We have replaced our PIX with ASA 5510 and are running, ASA Version 8.3(1) & asdm-631.bin.    We have 1 ASA and 2 WAN's. So I have configured Failover, so that if primary WAN fails secondary will be active, which works fine. Only problem is NAT...

Hello all,I have follow structurelan - asa - router - internet.And I would like to give internet access to machines inside my network.with actual conf I from inside I can ping inside interface on cisco router, and stops there.Follow my confs about wh...

Hi,I have an AIP-SSM-10 running inside an ASA-5520. the sensor CPU usage is 57-90%. What cause the problem might have occured?. please help me.

Hi,Is there a command line command reference available for NACFor example I want to see the certificates for NACWhich debug command shall I use in NAC   ? ( for eg  , If it is ipsec i will use debug cry isa and debug cry ipsec )And in what files , wh...

Hello everyone,I am setting up a multi context on the Cisco ASA. We are allowing multiple customers to come into their via their context from the Internet. The QoS would be done on the switches below. Ini such a situation what is the ideal configurat...

I have a PIX506E (version 6.3(5)) that interfaces with our main network.  The main network contains our call manager (version 7).  Behind the PIX506E I have two networks.  One network is for the IP Phones and the other network is for the workstations...

AllI am looking for assistance on a problem that I believe could be on the firewall. I have an ASA5540 connected to a DMZ via switch A. Switch A connects to Switch B. There are servers in the DMZ but 4 of these become unreacheable all at the same tim...

Hello I would like to police the output from a web server.Requests are made from external to port 80 and I would like to limit what can be requested to 50Mb/s, however i'm not sure whether to put this setting on the outside on inside interface for po...