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The Spectre attack could leverage the Linux kernel's eBPF interpreter or JIT compiler to extract data from other kernel processes. [11] A JIT hardening feature in the kernel mitigates this vulnerability. [12] Chinese computer security group Pangu Lab said the NSA used BPF to conceal network communications as part of a complex Linux backdoor. [13]
The Linux Network Administrator's Guide is a book on setting up and running Unix and Linux networks. [1] The first and second editions are freely available in electronic form under the GFDL . It was originally produced by Olaf Kirch and others as part of the Linux Documentation Project with help from O'Reilly .
XDP (eXpress Data Path) is an eBPF-based high-performance data path used to send and receive network packets at high rates by bypassing most of the operating system networking stack. It is merged in the Linux kernel since version 4.8. [2] This implementation is licensed under GPL. Large technology firms including Amazon, Google and Intel ...
eBPF is a technology that can run programs in a privileged context such as the operating system kernel. [5] It is the successor to the Berkeley Packet Filter (BPF, with the "e" originally meaning "extended") filtering mechanism in Linux and is also used in non-networking parts of the Linux kernel as well.
On 9 December 2019, David Miller – primary maintainer of the Linux networking stack – accepted the WireGuard patches into the "net-next" maintainer tree, for inclusion in an upcoming kernel. [30] [31] [32] On 28 January 2020, Linus Torvalds merged David Miller's net-next tree, and WireGuard entered the mainline Linux kernel tree. [33]
iproute2 utilities communicate with the Linux kernel using the netlink protocol. Some of the iproute2 utilities are often recommended over now-obsolete net-tools utilities that provide the same functionality. [4] [5] Below is a table of obsolete utilities and their iproute2 replacements.
ethtool is the primary means in Linux kernel-based operating systems (primarily Linux and Android) for displaying and modifying the parameters of network interface controllers (NICs) and their associated device driver software from application programs running in userspace.
David Stephen Miller (born November 26, 1974) is an American software developer working on the Linux kernel, where he is the primary maintainer of the networking subsystem [1] [2] and individual networking drivers, [3] the SPARC implementation, [4] [5] and the IDE subsystem. [6]