Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- public_v6:ubuntu [2019/06/05 10:05] – admin
+++ public_v6:ubuntu [2024/03/15 14:01] (aktuell) – [User administrieren] admin
@@ Zeile 1: / Zeile 1: @@
+====== Ubuntu ======
+===== User administrieren =====
+<code bash>
+#create new user 'newuser'
+sudo adduser newuser
+#show current groups
+groups newuser
+#Public Key in ''~/.ssh/authorized_keys'' eintragen
+#grand sudo rights (by adding user to group sudo)
+sudo usermod -aG sudo newuser
+#deletes user and removes home directory
+sudo deluser --remove-home newuser
+</code>
+===== Hostname ändern =====
+<code bash>
+sudo hostnamectl set-hostname NEUERNAME
+</code>
+===== Manuelle Netzwerkonfiguration (Netplan) =====
+. Netzwerkinterface herausfinden (:!:muss in der Config angepasst werden!):
+<code bash>
+ip link
+</code>
+. Datei ''/etc/netplan/01-netcfg.yaml'' anlegen/bearbeiten:
+<code yaml>
+network:
+  version: 2
+  renderer: networkd
+  ethernets:
+    ens3:
+      dhcp4: no
+      addresses:
+        - 141.45.184.42/25
+      routes:
+        - to: default
+          via: 141.45.184.1
+      nameservers:
+          addresses: [8.8.8.8, 9.9.9.9]
+</code>
+. Zugriff beschränken:
+<code bash>
+chmod 600 /etc/netplan/01-netcfg.yaml
+</code>
+. Netplan anwenden und Config überprüfen:
+<code bash>
+sudo netplan apply
+ip addr show dev ens3
+</code>
+===== DNS-Server konfigurieren (ohne Netplan) =====
+Create:
+<code bash>
+sudo mkdir /etc/systemd/resolved.conf.d/
+sudo vim /etc/systemd/resolved.conf.d/dns_servers.conf
+</code>
+Insert lines into ''dns_servers.conf'':
+<code bash>
+[Resolve]
+DNS=9.9.9.9 8.8.8.8
+</code>
+Restart ''systemd-resolved'':
+<code bash>
+sudo systemctl restart systemd-resolved
+</code>
+Source: https://askubuntu.com/questions/1406827/how-to-set-dns-on-ubuntu-22-04-when-you-have-no-netplan-config
 ===== Wake-on-LAN konfigurieren =====
   * https://kodi.wiki/view/HOW-TO:Set_up_Wake-on-LAN_for_Ubuntu#cite_note-1
-WoL als Systemd - Service:
+:!: WoL als Systemd - Service (16.04):
   * https://askubuntu.com/questions/764158/how-to-enable-wake-on-lan-wol-in-ubuntu-16-04
+  * [[https://apple.stackexchange.com/questions/95246/wake-other-computers-from-mac-osx|Python Script für MagicPacket]]
 ===== Verschlüsselung der Home-Partition aufheben: =====
@@ Zeile 13: / Zeile 98: @@
+===== Hardening Ubuntu: =====
+  * https://gist.github.com/lokhman/cc716d2e2d373dd696b2d9264c0287a3
+  * https://bookofzeus.com/harden-ubuntu/hardening/sysctl-conf/
 ===== IPv6 in Ubuntu manuell konfigurieren =====
 ==== Zielkonfiguration ====