This is, for what I’v read about, the two main things that we need to have updated…
Check them trought uname -r and dmesg | grep microcode
[[email protected] www]# systemctl status microcode -l
● microcode.service - Load CPU microcode update
Loaded: loaded (/usr/lib/systemd/system/microcode.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Fri 2018-01-05 17:43:08 CET; 1 weeks 6 days ago
Process: 692 ExecStart=/usr/bin/bash -c grep -l GenuineIntel /proc/cpuinfo | xargs grep -l -E "model[[:space:]]*: 79$" > /dev/null || echo 1 > /sys/devices/system/cpu/microcode/reload (code=exited, status=0/SUCCESS)
Main PID: 692 (code=exited, status=0/SUCCESS)
Jan 05 17:43:08 sd-56969 systemd: Starting Load CPU microcode update...
Jan 05 17:43:08 sd-56969 systemd: Started Load CPU microcode update.
letsencrypt topic about this issue: https://community.letsencrypt.org/t/solution-client-with-the-currently-selected-authenticator-does-not-support-any-combination-of-challenges-that-will-satisfy-the-ca/49983/2
This is due to a security incident with LetsEncrypt
Incident Status Security Issue
Components acme-v01.api.letsencrypt.org (Production), acme-staging.api.letsencrypt.org (Staging), acme-staging-v02.api.letsencrypt.org (Staging)
Locations High Assurance Datacenter 1, High Assurance Datacenter 2
Soundcloud recently changed their streaming format from 128kbps MP3 to 64kbps Opus. This drastically reduces the audio quality and can introduce strange artifacts. I made & released a Chrome Extension to restore the 128kbps MP3s. Give it a try.
Let’s see what support says…
[Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
yum clean all
rm -rf /var/cache/yum