Tag Archives: firewall

Sourcefire Security Intelligence

Let’s talk a little bit about a nice capability of Sourcefire system called “Security Intelligence” (SI). With the SI we have the option to block the traffic based on its reputation, before it reaches detection engine. We had this functionality … Continue reading

Posted in ASA, Cisco, FirePOWER, Firewall, IPS, Security, Sourcefire | Tagged , , , , , | 18 Comments

Palo Alto NGFW use case three: Layer3 Mode

So far we saw two deployment modes with Palo Alto NGFW. Now we will discuss the third one – Layer3 or L3 mode. Here is our topology: As we can see, we still have our Hyper-V/ESXi host with several VMs … Continue reading

Posted in Firewall, Paloalto, Security | Tagged , | 1 Comment

Palo Alto NGFW use case two: Virtual Wire mode (vWire)

Last time we saw how to deploy the Palo Alto NGFW in a tap mode, so we could verify our security policy would work. The main drawback of this mode is that we cannot interfere with a traffic in any … Continue reading

Posted in Firewall, Paloalto, Security | Tagged , , | 1 Comment

Initial setup of Palo Alto Networks Next Generation Firewall

Ok, we just unboxed our PA-500 NG Firewall and we want to deploy it in our network for variety of purposes. Before we deploy it, there are several steps that should be taken care of, such as assigning IP parameters, registering … Continue reading

Posted in Firewall, Paloalto, Security | Tagged , , | 56 Comments

VMware vSphere Data Protection error E10055

When I tried to backup the virtual machine up using the “VMware VDP”, I receive this error: “VDP: Backup job failed to backup client. Execution error: E10055:Failed to attach disk.” Most of solutions I found on the web were dealing … Continue reading

Posted in ASA, Cisco, Security, Virtualization, VMWare | Tagged , , | 3 Comments

Installing Cisco Virtual Security Gateway–VSG

Last time we have seen why and how to install and setup a Cisco Nexus1000V distributed switch. We now want to prevent one VM to talk to another entirely or just for some protocols. We could use traditional ACLs on … Continue reading

Posted in Cisco, Cloud, Virtualization, VMWare | Tagged , , , , | Leave a comment

ASA firewall in multiple context mode

In our previous blog, we saw that the ASA can be virtualized into many virtual firewalls or contexts. Now, we will see how. We will use this topology:   We will focus on ASA1 physical box and set it up. … Continue reading

Posted in ASA, Cisco, Virtualization | Tagged , , , , | 4 Comments