Message À Caractère Informatique #12 - 30% Des News Du Kernel Seront Reversées Aux Hackers Russes

from Message à caractère informatique · host Clever Cloud

Toutes les notes sont disponibles sur https://www.clever-cloud.com/fr/podcast/episode12 Avec par ordre d’apparition : @waxzce @juuduu @keruspe @gcouprie Des infos sur Mozilla et sa restructuration : https://twitter.com/jwajsberg/status/1295401144936738816 Et la création de la fondation Rust : https://blog.rust-lang.org/2020/08/18/laying-the-foundation-for-rusts-future.html Cette épisode est un spécial kernel et systemd Dans l’intro sur le low level GNU - linux - systemd Série de blog post sur le binaire : https://twitter.com/fasterthanlime/status/1216435739157835776?s=20 Le kernel : https://kernelnewbies.org/LinuxChanges https://linuxfr.org/tags/kernel/public https://www.phoronix.com/scan.php?page=article&item=linux-58-features&num=1 https://lwn.net/ Kernel 5.8 en condensé: Meilleur algo de reclaim de ram / swap (LRU, refault, IO cost) Swapiness 200 Swap perf, defrag, reclaim Cgroup memory.swap.high KCSAN (needs gcc/clang 11 unreleased) / KTSAN : Kernel Concurrency Sanitizer “data race detector for the kernel” Event pipes + gnome Virtio mem hotplug Btw, depuis Linux 5.6 on a wireguard, le VPN le plus simple du monde : 1 algo de chiffrement, 1 algo de KEX, 1 format de clé. Pidfd + setns 1.6. Shadow Call Stack and Branch Target Identification for improved security on ARM64 1.8. Introduce CAP_BPF and CAP_PERFMON security capabilities (Ça permet de donner accès à certaines features BPF sans donner accès à tout le reste du système.) https://perf.wiki.kernel.org/index.php/Main_Page http://www.brendangregg.com/blog/2019-01-01/learn-ebpf-tracing.html https://ebpf.io/ https://www.youtube.com/watch?v=tDacjrSCeq4 ← shouting in the datacenter Btrfs improvements (ENOSPC, xattr/chown pour send, repair perfs) Ext4 ENOSPC race io_uring https://github.com/cloud-hypervisor/cloud-hypervisor/releases/tag/v0.9.0 POWER10 Private procfs instances Inline encryption for block devices Systemd 246: https://lwn.net/Articles/827675/ https://systemd.io Cgroup freezer (unit suspend) Cpuaffinity numa (expliquer numa ? en gros, on choisit ses cœurs cpus pour rester près de la RAM) Tmpfs limits Noauto swap SNI for DNS over TLS Zstd Fido2 + fixes for homed systemd versions in various distributions: ArchLinux: 246 Centos/RHEL (Oracle Linux): 7: 219 8: 239 EPEL (unsupported DIY): 245 Amazon Linux 2: 219 (derived from Centos 7) Debian: stable, Debian buster: 241; buster-backports: 245 testing, Debian bullseye: 246 Fedora: stable, Fedora 32: systemd 245 upcoming (october), Fedora 33: systemd 246 OpenSUSE / SLES: OpenSUSE Tumbleweed (rolling): 245 SLES (Enterprise) 15.2: 234 Ubuntu: stable, Ubuntu 20.04 (LTS)...Hébergé par Ausha. Visitez ausha.co/politique-de-confidentialite pour plus d'informations.

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This episode was published on August 22, 2020.

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