Scapy is a (mostly) cross-platform packet manipulation tool. This allows you to craft and edit packets that you then send to other hosts when you open a socket. This is incredibly useful for, for example, capturing a packet being sent to you, manipulating the payload, and passing the packet on to another host. This is a pretty common, albeit slightly more advanced, method of security testing. Installing Scapy is a pretty straight forward process, if a tad bit time consuming compared to something coming in from a standard package. Before you get started, make sure you have the OS X Developer Tools installed from the Mac App Store. Also, make…
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Change MTU in Windows Server
When we transfer certain amounts of data in a packet we might cause that packet to fragment. The less fragmentations without requiring a collision or a re-send of a packet, the more efficient network traffic can be. The MTU defines the packet size. Different types of data or network links respond differently. To change the MTU on a Windows Server we’re going to use the netsh command. First, we’re going to use ping to ping a host on our network, using -f and then -l which allows us to define the MTU size. In this case we’re going to use 1500: ping https://krypted.com/ -f -l 1500 We should get an…