User Manuals : FOXMAN-UN Installation Guideline : System Configurations
Hitachi Energy
System Configurations
 
Steps
Procedures
1.
Check the active adapters in your system:
# nmcli
2.
Configure the networking via NetworkManager:
Red Hat Enterprise Linux provides administrators different options to configure Ethernet connections. Refer to “Red Hat Enterprise Linux 9 Configuring and managing” networking document to choose and use the proper one.
I.e., you provide a static IP address for the FOXMAN‑UN server.
Sample configurations:
Address: 172.21.22.18
Netmask: 255.255.255.0
Gateway: 172.21.22.1
DNS servers: 172.23.18.10
Select Apply > Close
3.
Modify the file /etc/hosts
# vi /etc/hosts
Or edit the file /etc/hosts in an editor like gedit.
Sample entry:
172.21.22.18 my-nem-server
127.0.0.1 localhost.localdomain localhost
Disable this line:
#::1 localhost6.localdomain6 localhost6
 
Where:
172.21.22.18 is the IPv4 address of the FOXMAN‑UN server in this sample;
my-nem-server is the hostname of the FOXMAN‑UN server in this sample.
Save and exit the file.
4.
It is strongly recommended to keep the firewall enabled. If however required, you may disable the firewall by running the following commands as “root”:
# systemctl stop firewalld
# systemctl disable firewalld
To enable and start it again:
# systemctl enable firewalld
# systemctl start firewalld
If you run your machine with firewall, please follow the instructions given in the application note “FOXMAN‑UN in Firewalled Environment [1KHW029012]” included in the FOXMAN‑UN documentation.
5.
Verify that SELinux is enabled:
# vi /etc/selinux/config
Set the parameters to (recommended):
SELINUX=enforcing
SELINUXTYPE=targeted
 
Save the file and exit from the editor.
6.
Check the network connection by executing:
$ ping <gateway ip>
$ ping <dns server ip>
 
You can stop the ping command by entering <CTRL-C>.
Sample commands:
$ ping 172.21.22.1
$ ping 172.23.18.10
The default minimum MTU size (minimum discovered path MTU) for Linux is 552. In case you need to modify the minimum MTU size in accordance with settings done for nodes to be managed (e.g., on the management VLAN interface or management PPP interface of a node of type FOX61x), the following changes are required:
 
Steps
Procedures
1.
Determine the minimum MTU size to be used in your management network. Note that 128 is the minimum that can be supported.
2.
Create the following file as user “root”:
/etc/sysctl.d/nem_min_pmtu
3.
Add the following line to the file /etc/sysctl.d/nem_min_pmtu
net.ipv4.route.min_pmtu = <min_mtu>
Where <min_mtu> is the minimum MTU size in integer format.
Example for MTU size = 128:
net.ipv4.route.min_pmtu = 128
Save and exit the file.
4.
Reload the kernel settings by entering the following command as “root”:
sysctl -p /etc/sysctl.d/nem_min_pmtu
You should now be ready to execute FOXMAN‑UN installation. Continue with section FOXMAN‑UN Installation.