v.: 2020-09-04
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57
Configurating RCCMD network settings
Search for this crucial entry:
➔ iface ens33 inet dhcp
➔ iface ens33inet static
Basically, these two configuration lines decide whether to use a static IP address or the appliance asks for a DHCP server.
Source /etc/network/interfaces.d/*
# The loopback network interface
Auto Io
Iface Io inet loopback
#The primary network interface
alllow-hotplug ens33
#Iface ens33 inet dhcp <- use # to disable DHCP
iface ens33 inet static <- Remove # to enable manual IP address settings
address 192.168.200.99 <- Enter static IP-address
subnet 255.255.255.0 <- Enter subnet mask
gateway 192.168.200.1 <- Enter IP address of the gateway
# dns-* options are implemented by the resolvconf package, if installed
dns-namservers 192.168.200.3 192.168.200.5 168.168.200.1 <- Enter DNS Server Ip address data
# dns-search local
After reboot, the appliance should use and display a static IP address.
Note
If you choose to enter the IP address assigned by the DHCP server during startup as a static IP, ensure this IP address will be
removed from the pool of dynamically assignable IP addresses. Alternatively, you can assign a fixed IP address via DHCP
server and enter it statically in the appliance. By doing so, RCCMD will definitely be assigned an accessible IP address, which
greatly increases resilience
Setting up an emergency user for RCCMD on VMware
2a. Setting up an emergency user
Note
You do not want it, but passwords can be lost - unfortunately always in company of big trouble:
For complex systems, a lost password can be very cumbersome and expensive, e.g. if complex scripts neet to be completly
rebuild from scratch. The emergency user is not an all-in-one Solution for these problems, but it may be very useful if something
unexpected occurs. You can configure the emergency user at any time - it is no need to do it right before initial configuration of
RCCMD.
You may skip this part in case of not using an emergency user or if you wish to configure it later.
It happens again and again that passwords are lost due to adverse circumstances:
- e.g. no proper documentation about the installed systems,
- systems and passwords have been forgotten
- systems are inherited from other companies
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