[Oracle DataBase Server 12.2 Installation on Oracle Linux 7.4]: Configuring Network Interfaces


Configure network interfaces and network service parameters.


# cd /etc/sysconfig/network-scripts/
# cp ifcfg-enp0s3 ifcfg-enp0s3.orig
# cp ifcfg-enp0s8 ifcfg-enp0s8.orig

in

# vi ifcfg-enp0s3
# vi ifcfg-enp0s8


In the last line I replaced

ONBOOT=no

with

ONBOOT=”yes”

And restarted the network service

# service network restart



# ping ya.ru (OK)


No network utilities. Installing.

# yum install -y net-tools



# ifconfig enp0s3
returns that my IP is 192.168.56.101


Now I connect to the server via SSH and work with it remotely:

$ ssh root@192.168.56.101


Continue configuring network environment parameters

You need to choose a suitable name for the server that reflects its role and purpose on the network.

# hostnamectl set-hostname oracle12serv.localdomain

Check:

# hostnamectl



# vi /etc/hosts


Add:

## IPs Public Network (hosts file, DNS)
192.168.56.101 oracle12serv.localdomain oracle12serv


Allow connections to ports

# firewall-cmd --permanent --add-port=1521/tcp
# firewall-cmd --permanent --add-port=5500/tcp
# firewall-cmd --reload