Current File : //proc/self/root/usr/local/sbin/configurar_red_privada.sh

#!/bin/bash

config_network_debian() {
    test -f /etc/network/interfaces.d/eth1 || {
        cat > /etc/network/interfaces.d/eth1 <<EOF
allow-hotplug eth1
iface eth1 inet dhcp
EOF
        ifup eth1
    }
}

config_network_sysconfig() {
    test -f /etc/sysconfig/network-scripts/ifcfg-eth1 || {
        cat > /etc/sysconfig/network-scripts/ifcfg-eth1 <<EOF
DEVICE=eth1
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=no
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF=no
IPV6_DEFROUTE=no
IPV6_FAILURE_FATAL=no
NAME=eth1
ONBOOT=yes
EOF
        ifup eth1
    }
}

config_network_NetworkManager() {
    nmcli connection delete eth1 2> /dev/null
    nmcli connection add connection.interface-name "eth1" type ethernet connection.id "eth1" ipv4.method "auto" ipv4.never-default "yes" ipv6.method "disabled"
    nmcli connection up eth1
}

config_network_netplan() {
    test -f /etc/netplan/02-eth1.yaml || {
        cat > /etc/netplan/02-eth1.yaml <<EOF
network:
  version: 2
  renderer: networkd
  ethernets:
    eth1:
      dhcp4: yes
EOF
        chmod 600 /etc/netplan/02-eth1.yaml
        netplan apply
    }
}

if grep -qw eth1 /proc/net/dev ; then
    ## Debian 8, 9 y 10, Ubuntu 16.04
    grep -qs "Debian GNU/Linux " /etc/os-release && config_network_debian
    grep -qs "Ubuntu 16\.04" /etc/os-release && config_network_debian
    ## CentOS 6 y 7
    grep -qs "CentOS Linux release 7\." /etc/redhat-release && config_network_sysconfig
    grep -qs "CentOS release 6\." /etc/redhat-release && config_network_sysconfig
    ## CentOS/Alma/Rocky 8
    egrep -qs "(CentOS |Alma|Rocky )Linux release 8" /etc/redhat-release && config_network_netplan
    ## CentOS/Alma/Rocky 9
    egrep -qs "(CentOS |Alma|Rocky )Linux release 9" /etc/redhat-release && config_network_NetworkManager
    ## Ubuntu 18, 20, 22, y 24
    egrep -qs "Ubuntu (18|20|22|24)\.04" /etc/os-release && config_network_netplan
else
    rm -vf /etc/network/interfaces.d/eth1 /etc/sysconfig/network-scripts/ifcfg-eth1 /etc/netplan/02-eth1.yaml
fi