Client Anpassen der Virtuellen Maschinen Netzwerk und Serveradministration

Hostname

• hostnamectl set-hostname client01.it1XX.int

Netzwerk

• cat /etc/network/interfaces

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

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto enp0s3
iface enp0s3 inet static 
 address 172.16.1XX.100/24
 gateway 172.16.1XX.1

Namerserver

• cat /etc/resolv.conf

nameserver 1.1.1.1
search it1XX.int

Hosts

• cat /etc/hosts

127.0.0.1	localhost
127.0.1.1	client.it1XX.int client

# 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 ip addresse
 ProxyJump kit@fw

PubKey Übertragung

• ssh-copy-id servername

Danach könnt ihr euch mit ssh servername passswortlos einlogen