Anpassen der Virtuellen Maschinen Netzwerk und Serveradministration

Hostname

• hostnamectl set-hostname servername.it2XX.int

Netzwerk

• cat /etc/network/interfaces

1. This file describes the network interfaces available on your system
2. and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

1. The loopback network interface

auto lo iface lo inet loopback

1. The primary network interface

auto enp0s3 iface enp0s3 inet static

address 10.88.2XX.2/24
gateway 10.88.2XX.1

Namerserver

• cat /etc/resolv.conf

nameserver 10.88.2XX.21
search it2XX.int

Hosts

• cat /etc/hosts

127.0.0.1	localhost
127.0.1.1	servername.it2XX.int servername

# The following lines are desirable for IPv6 capable hosts
::1      localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Reboot

• systemctl reboot

JumpHost

Auf dem KIT Host anfügen

• vim ~/.ssh/config

Host servername
 Hostname 10.88.2XX.2
 ProxyJump kit@fw

PubKey Übertragung

• ssh-copy-id servername

Danach könnt ihr euch mit ssh servername passswortlos einlogen