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Ethernet Interface Preparation
Cloud Considerations
If running Charon-PAR in a cloud environment please consider that every cloud environment has specific networking characteristics that could conflict with interface configurations made by the user of the Charon-PAR host system. Please refer to the documentation provided by the cloud provider and the network-specific sections in the Getting Started guides of your product to understand the networking behavior of your cloud instance before you change any interface settings (failing to do so may end with your cloud instance being permanently unreachable).
Red Hat and CentOS Version 7.x
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Starting with CentOS/Red Hat/Oracle Linux 8.x, the network-scripts package has been deprecated and the bridge-utils package is no longer available in the standard repositories. Network management for these Linux versions has been changed to use the NetworkManager capabilities. Network management can be handled via the Gnome GUI or , via nmcli commands, or via the nmtui utility. Please refer to the documentation of your Red Hat or CentOS version for more information.
The network-scripts package can be installed optionally to maintain the same network management methods as used in Linux version 7. However, there is no guarantee how long the package will still be available.
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Example for graphical user interface:
The following image shows a sample configuration that disables the IPv4 configuration for an interface that is to be dedicated to the emulator using the GNOME network settings.
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To make this setting permanent, add it to /etc/sysctl.conf.
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Example for non-graphical interface:
On a non-graphical interface, you can use the nmcli command-line utility to create a network connection as shown in the following example:
# nmcli conn add type ethernet autoconnect yes \con-name <physical-int-name> \ifname <pysical-int-name> ip4 0.0.0.0
Or you can use the nmtui text-based utility (separate RPM package). It provides a text-based configuration menu.
Please note: after changes via nmcli or nmtui you must restart the NetworkManager (systemctl restart NetworkManager.service).
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