Hostname/Network config script for Kickstart

gistfile1.txt

#!/bin/bash
#
#   https://m.reddit.com/r/sysadmin/comments/1b1ezy/hostnamenetwork_config_script_for_kickstart/
#


HWADDR=`ifconfig eth0 | grep HW | awk ' BEGIN { FS = " " } ; { print $5 } ; '`
hostn=""
mode=""
hostfile="/etc/sysconfig/network"
netfile="/etc/sysconfig/network-scripts/ifcfg-eth0"
hostname_result=""

while [[ -z $hostname_result ]] || [[ $hostname_result == "1" ]] ; do

        hostn=$(whiptail --inputbox "Enter the Server's Hostname" 10 60 3>&1 1>&2 2>&3)
        whiptail --title "Is the hostname correct?" --yesno "$hostn" 8 78 3>&1 1>&2 2>&3
        hostname_result=$? ; done

while [[ -z $mode ]] ; do
mode=$(whiptail --checklist "Static of DHCP Network configuration?" 10 60 5 Static "Static Network config" off DHCP "Dynamic Network config" off 3>&1 1>&2 2>&3) ; done

echo "DEVICE=\"eth0\"" > $netfile
echo "HWADDR=\"$HWADDR\"" >> $netfile
echo "ONBOOT=\"yes\"" >> $netfile
echo "NM_CONTROLLED=\"yes\"" >> $netfile

if [ $mode == '"DHCP"' ]
        then
                echo "BOOTPROTO=\"dhcp\"" >> $netfile
                echo "NETWORKING=yes" > $hostfile
                echo "HOSTNAME=$hostn" >> $hostfile

        else
                while [ -z $result ] || [ $result == "1" ] ; do
                        ipaddr=$(whiptail --inputbox "IP Address" 10 60  3>&1 1>&2 2>&3)
                        netmask=$(whiptail --inputbox "Network Mask" 10 60 "255.255.240.0" 3>&1 1>&2 2>&3)
                        gateway=$(whiptail --inputbox "Gateway" 10 60  3>&1 1>&2 2>&3)
                        dns1=$(whiptail --inputbox "DNS1" 10 60  3>&1 1>&2 2>&3)
                        dns2=$(whiptail --inputbox "DNS2" 10 60  3>&1 1>&2 2>&3)
                        domain=$(whiptail --inputbox "Domain" 10 60 "internal" 3>&1 1>&2 2>&3)
                        whiptail --title "Are the settings correct?" --yesno "\n IP Adress: $ipaddr \n Netmask: $netmask \n Gateway: $gateway \n DNS: $dns1,$dns2 \n Domain: $domain \n" 18 78 3>&1 1>&2 2>&3
                result=$? ; done
                        echo "BOOTPROTO=\"static\"" >> $netfile
                        echo "IPADDR=\"$ipaddr\"" >> $netfile
                        echo "NETMASK=\"$netmask\"" >> $netfile
                        echo "GATEWAY=\"$gateway\"" >> $netfile
                        echo "DNS1=\"$dns1\"" >> $netfile
                        echo "DNS2=\"$dns2\"" >> $netfile
                        echo "DOMAIN=\"$domain\"" >> $netfile
                        echo "NETWORKING=yes" > $hostfile
                        echo "HOSTNAME=$hostn.$domain" >> $hostfile

   fi