ubuntu, kubuntu 18.04 Wifi slow connection, drops linux Centrino Advanced-N 6235

#ux31a Asus

upgrade linux-firmware >175

cd /tmp

wget http://mirrors.edge.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.175.3_all.deb

dpkg -i linux-firmware_1.175.3_all.deb

reboot

kubuntu 19.04 remmina do not connect

ubuntu kubuntu 19.04 remmina do not connect, resolve them with:


apt-get remove remmina
 
ppa: sudo add-apt-repository ppa:remmina-ppa-team/remmina-next

apt-get install remmina


and upgrade freerdp to 2.2.. 

how to fix filesystem of a LXC container

UPDATE: open /etc/default/grub and add vsyscall=emulate to the GRUB_CMDLINE_LINUX_DEFAULT parameters, then execute grub-mkconfig -o /boot/grub/grub.cfg or update-grub on ubuntu, restart, party.

https://serverfault.com/a/897354/518578

DEBIAN – FEHLER AUS DEM SYSLOG – NAMED ERROR (NO VALID RRSIG) RESOLVING /DS/IN #53

Beispiel: Fehler bei Forward in Bind9 b.z.w named

named[4178]: error (no valid RRSIG) resolving 'google.com/DS/IN': 80.92.90.160#53

Lösung:
DNSSEC Prüfung in der /etc/bind/named.conf.options ausschalten.
dnssec-validation no;