Script to Install CentOS Server on a system with one ethernet card

centos-install-eth.txt

yum install -y wget net-tools e2fsprogs http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/v/vnstat-1.15-2.el7.x86_64.rpm 
systemctl enable vnstat && systemctl start vnstat
wget casjay.us/vm-settings/base-eth.tar.gz -O /tmp/base-eth.tar.gz 
mkdir -p /tmp/base && tar xfvz /tmp/base-eth.tar.gz -C /tmp/base && cp -Rfv /tmp/base/root/.bashrc /root/ && exit
cp -Rfv --no-preserve=mode,ownership /tmp/base/* / && chattr +i /etc/resolv.conf

timedatectl set-timezone America/New_York
sed -i "s#myserverdomainname#$(echo $HOSTNAME)#g" /etc/sysconfig/network
sed -i "s#mydomain#$(echo $HOSTNAME |awk -F. '{$1="";OFS="." ; print $0}' | sed 's/^.//')#g" /etc/sysconfig/network 
domainname $(hostname -f |awk -F. '{$1="";OFS="." ; print $0}' | sed 's/^.//') && echo "kernel.domainname=$(domainname)" >> /etc/sysctl.conf

rpm -ev --nodeps chrony cronie-anacron sendmail sendmail-cf ; yum remove -y chrony libvirt* virt*
rm -Rfv /etc/tuned* /etc/chrony* anaconda-ks.cfg /var/log/anaconda
reboot

yum clean all && yum update -y 
reboot

yum install -y $(cat rpms-default.txt )

rm -Rfv /etc/named* /var/named/* /etc/ntp* /etc/cron*/0* /etc/cron*/dailyjobs /var/ftp/uploads /etc/httpd/conf.d/ssl.conf
wget casjay.us/vm-settings/default-eth.tar.gz -O /tmp/default-eth.tar.gz
mkdir -p /tmp/default && tar xfvz /tmp/default-eth.tar.gz -C /tmp/default && cp -Rfv --no-preserve=mode,ownership /tmp/default/* /
mkdir -p /var/log/named && chown -Rfv named:named /etc/named* /var/named /var/log/named && chown -Rfv apache:apache /var/www /usr/share/httpd && chmod 664 /etc/cron.d/* 
openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/pki/tls/private/localhost.key -out /etc/ssl/certs/localhost.crt

munin-node-configure --shell | sh
git clone https://github.com/CasjaysDev/system-scripts.git /tmp/system-scripts
rm -Rf /tmp/system-scripts/doc /tmp/system-scripts/CODE_OF_CONDUCT.md /tmp/system-scripts/LICENSE /tmp/system-scripts/README.md /tmp/system-scripts/.git /tmp/system-scripts/version.txt
cp -Rf /tmp/system-scripts/* /
find /root/bin /etc/casjaysdev /usr/share/system-scripts -type f -iname "*.sh" -exec chmod +x {} \;
chmod 755 /etc/sysconfig/system-scripts.sh /etc/rc.d/init.d/systemmail

systemctl enable munin-node httpd named postfix uptimed php-fpm netdata fail2ban shorewall shorewall6 proftpd rsyslog ntpd
systemctl disable firewalld auditd kdump 

rm -Rfv /tmp/*.tar.gz /tmp/base /tmp/default 
ifconfig
echo "Edit and run /root/bin/changeip.sh"
#vim /root/bin/changeip.sh
/root/bin/changeip.sh

echo "run certbot certonly --dns-rfc2136 --dns-rfc2136-credentials /etc/named/certbot-update.conf -d $(domainname)"
echo "run certbot -a webroot -i apache -w /var/www/casjay -d $(domainname) -d *.$(domainname)"
systemctl reboot