High-speed packet transmission in Go: From net.Dial to AF_XDP
Guest Post: Pushing limits in Go — from net.Dial to syscalls, AF_PACKET, and lightning-fast AF_XDP. Benchmarking packet sending performance.
Tag: Linux
Drop early, drop often: Raw vs filter iptables packet filtering
Guest Post: Examining iptables performance when filtering traffic at different processing stages within a Linux-based router.
The who’s who of whois clients
There are many different clients you can use for whois lookups. Are they any good?
Trust, but verify: An engaged community is the best defence
The discovery of bad code deliberately inserted into the Linux kernel shows the value of an active community.
What basics do you need to know for SDN?
Guest Post: Wondered about adopting SDN, but just don’t know where to start?
Application firewall coming to Linux devices near you
Guest Post: The Linux Application Firewall Project aims to create a simple and intuitive application that can be used by non-IT people.
RHOMBUS: a new IoT malware
Guest Post: RHOMBUS is a new adaptation of the Mirai codebase with new methodologies to persist and drop different stages and updates, while also backdooring the instance.
How to: Build an XDP based BGP peering router
Guest Post: XDP allows you to build a high-performance peering router using just Linux, while leveraging various open-source routing daemons.
Detecting Linux kernel process masquerading with command line forensics
Guest Post: Learn how to use Linux command line to investigate suspicious processes trying to masquerade as kernel threads.
Kernel bypass networking with FD.io and VPP
Guest Post: Vector Packet Processing is an open-source framework that enables super fast kernel bypass packet forwarding.