Chinese AI Infrastructure: Really good analysis of the AI infrastructure in China. It is easy to see news all about USA infra (and a little bit in EU) but this one shows the reach and capacity in China. Same struggles about space and energy and how different regions are winning specific battles.
EDA (Electronic Design Automation) tools landscape: I remembered this article after reading the Chip Wars. It is an example of small/critical bottleneck. Three companies (Synopsys, Cadence, and Siemens EDA) dominate the market. Enough competition to push progress (I want to believe) and enough margin to make profit. I was surprised that some companies pay around 150k per user to use these products. And all the companies in HW have to use them. Nobody is free.
33: Choose Something in Life Worth Struggling For. Everything in life is hard, one way or the other.
Maia 300: In the rack pictures, you can see Arista switches… I can’t recognize the model but doesnt have any fiber connected. Still interesting
QFX5252: Nice to see the inside of a switch. Tomahawk6 (no custom silicon), Liquid cooled. I was surprised of so much copper… and as the article mentions, you need CPO
AWS Networks Lab: Very nice report, from the hollow fiber, different switches, but nothing about firewalls and loadbalancers…
APT autoupdate: Because the php security issue, I had to update the php package and when I checked it was already updated. I thought it was a friend but turns out that I had apt autoupdate… and i didnt know, I think it is by default in the image provided by cloud provider? because I am pretty sure I didnt set that up.
root@vps442956:/home/thomarite# dpkg -s unattended-upgrades | grep -E '^(Status|Version):'
Status: install ok installed
Version: 2.12
root@vps442956:/home/thomarite# dpkg -s unattended-upgrades
Package: unattended-upgrades
Status: install ok installed
Priority: optional
Section: admin
Installed-Size: 317
Maintainer: Michael Vogt <mvo@debian.org>
Architecture: all
Version: 2.12
Depends: debconf (>= 0.5) | debconf-2.0, debconf, python3, python3-apt (>= 1.9.6~), python3-dbus, python3-distro-info, ucf, lsb-release, lsb-base, xz-utils
Recommends: systemd-sysv | cron | cron-daemon | anacron
Suggests: bsd-mailx, default-mta | mail-transport-agent, needrestart, powermgmt-base, python3-gi
Conffiles:
/etc/init.d/unattended-upgrades 290829a5efc55b7c435de0bb769f217b
/etc/kernel/postinst.d/unattended-upgrades 21f0ac567d9738d1a017fc16e0150a35
/etc/logrotate.d/unattended-upgrades e45049ee847f069a99e3e6ec39155d4a
/etc/pm/sleep.d/10_unattended-upgrades-hibernate 0f5d54aa2dd322c805c90e409fc2724a
/etc/update-motd.d/92-unattended-upgrades afa7546d3fe561e1f5783f7b9cf72096
Description: automatic installation of security upgrades
This package can download and install security upgrades automatically
and unattended, taking care to only install packages from the
configured APT source, and checking for dpkg prompts about
configuration file changes.
.
This script is the backend for the APT::Periodic::Unattended-Upgrade
option.
root@vps442956:/home/thomarite# cat /etc/apt/apt.conf.d/20auto-upgrades
APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Unattended-Upgrade "1";
root@vps442956:/home/thomarite#
root@vps442956:/home/thomarite# systemctl is-active unattended-upgrades.service
systemctl is-enabled unattended-upgrades.service
active
enabled
root@vps442956:/home/thomarite# systemctl is-active unattended-upgrades.service
active
root@vps442956:/home/thomarite# systemctl is-enabled unattended-upgrades.service
enabled
root@vps442956:/home/thomarite# systemctl is-enabled apt-daily.timer apt-daily-upgrade.timer
enabled
enabled
root@vps442956:/home/thomarite# 400G FEC: This at work a colleague ask me about advice about constant increment of corrected FEC errors (without traffic in the llnk…) And checking online, found that NANOG thread that was spot on in our situation. I learnt something today!
Subsea cables down. Nice site reporting issues with subsea cables. Very handy!