Archive for the ‘Network’ Category

SSH and SCP over alternate ports

Saturday, May 5th, 2007

For an internet facing SSH server, it is probably common practice to have sshd listening on a non-standard port. Coupled with key pair authentication, this reduces the profile you present to simple brute force attacks. Connecting to a SSH server on a non standard port is relatively simple: ssh -p username@servername.com You ...

Faking it! (UDP packets that is…)

Thursday, May 3rd, 2007

An associate of mine recently wanted a load script that could simulate thousands of UDP packets carrying a custom payload coming from different IP addresses. They were implementing a customised RFID solution that needed to simulate load from a lot of sources (think active RFID tags). There are many different ways ...