Versionsinformation

root@devel:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.4 LTS
Release:        18.04
Codename:       bionic

Export

''dpkg --get-selections> packages.lst''

Import

''dpkg --merge-avail <(apt-cache dumpavail)
dpkg --clear-selections
dpkg --set-selections <packages.lst
apt-get dselect-upgrade''

abschalten per dpkg-reconfigure cloud-init

Beispiel yaml für proxmox VM:

network:
  version: 2
  renderer:  networkd
  ethernets:
    ens18:
      dhcp4:  no
      addresses:  [138.201.52.38/26]
      gateway4:  138.201.52.41
      nameservers:
        addresses:  [213.133.98.98,213.133.99.99,213.133.100.100]
      routes:
        - to:  0.0.0.0/0
          via:  138.201.52.41
          on-link:  true

https://unix.stackexchange.com/questions/304050/how-to-avoid-conflicts-between-dnsmasq-and-systemd-resolved

Lösung: systemd-resolvd über /etc/systemd/resolved.conf abschalten:

''# disabled 15.10.18 thr DNSStubListener=no

easyrsa: crl neu erzeugen, rüberkopieren. Siehe https://www.jobishmathew.me/openvpn-crl-has-expired/

https://www.64-bit.de/dokumentationen/netzwerk/iptables/DE-IPTABLES-HOWTO-3.html

in /etc/sysctl.conf

net.ipv6.conf.all.disable_ipv6 = 1

Danach sysctl -p