Network Security

Hello all,We have a few VLANs that need to block all web access except for a few approved URLs.  Little diagram never hurt.Corp users should have full access to everything web.  But the test lab only needs access to just a few 10 or so URLs.  Here is...

I'm getting a lot of 5474/0 alarms (SQL query in HTTP request) due to people surfing to Yahoo. Is there a good way to set a filter on the IDS so the alarm is not generated from certain sites?

Hello,I'm a networking novice seeking assistance with the following issue:Recently rehosted my company website with another provider.  Changed A record to point to new provider.  Now cannot access new site from private vlan.Details:1 Managed Cisco 28...

Here is an odd one. This happened at work a couple of weeks ago and today at home. We were using an ASA 5505 connected to a cable broadband connection for guest Internet services. Rogers cable notified us that they needed to swap our existing modem w...

Hello,i am using cisco asa in gns 3 simulator ,unable find out the ASDM image or .bin file in ASA flash .If not how can i Uploade the ASDM image onto the ASA flash.Please help me out

Hi,We have a cisco ASA 5510 running on Software Version 8.0(4)28.Recently we are seeing high cpu usage as below ABC-ASA# show cpu usage CPU utilization for 5 seconds = 53%; 1 minute: 43%; 5 minutes: 45%ABC-ASA# and I have notice its becuase of dispat...

  Hi,I cant ssh to inside interface access of ASA5505 firewall wihile ASDM and telnet are working. I have opened SSH access along with telnet and ASDM.I can ssh to outside interface. Its very wied problem that SSH on inside interface is not working.B...

this is probably an easy question for most..It seems that my exchange server or a client on my network has been compromised and my exchange server or an outlook client being used to send spam. Our IP has landed on a couple blacklists. In an attempt t...

Is there a way to preserve the source port for UDP packets that use a PAT pool?Here is what I need:The client (1.1.1.1) sends a UDP packet from port 5060 to port 5060 on our external 2.2.2.2. This packet is port forwarded to our internal server 10.10...

Hello ,There are many personal pc's which i dont want to be in company's network. I have tried to stop them via their mac-address by putting access-list command but it didnt work. Can you guys plz help me out which this thing. I am using cisco 2900 s...

Hello,I have problem with Cisco ASDM proxy settings. I need to connect directly without proxy. I turned off proxy in Java settings and also in Internet explorer, but ASDM is still connecting via proxy. I didn't find any proxy settings in ASDM. Any su...