CentOS7 Base Install

Linux Base Package

echo "PS1='\033[1;33m\D{%F} \t \033[1;33m[\u@\H] \033[1;35m\w\033[0;0m\n#'" >> /root/.bashrc

. .bashrc

rm -f anaconda-ks.cfg

yum -y install epel-release

# For Physical Server
yum -y install htop dmidecode wget screen net-tools net-snmp perl \
  perl-libwww-perl vim sysstat iftop zip unzip lsof nc bash-completion \
  bind-utils nfs-utils telnet bzip2

# for Centos7
yum -y install yum-utils ntp  curl lsof bridge-utils pciutils \
  git ipmi qemu-guest-agent deltarpm

#for Centos8
yum -y install chrony

systemctl stop firewalld

systemctl disable firewalld

yum -y remove firewalld* 

systemctl stop NetworkManager ; systemctl disable NetworkManager

yum -y erase NetworkManager ; systemctl stop postfix ;yum -y remove postfix 

systemctl stop chronyd ; yum -y remove chrony

chmod +x /etc/rc.d/rc.local 

# set NTP sed -i '/server 0.centos.pool.ntp.org iburst/c server 202.170.119.19' /etc/ntp.conf
sed -i '/server 1.centos.pool.ntp.org iburst/c server 202.170.119.9' /etc/ntp.conf 
sed -i '/server 2.centos.pool.ntp.org iburst/c server 103.246.188.99' /etc/ntp.conf 
sed -i '/server 3.centos.pool.ntp.org iburst/c #' /etc/ntp.conf 
systemctl enable ntpd
systemctl restart ntpd

# set NTP sed -i '/server 0.centos.pool.ntp.org iburst/c server 202.170.119.19' /etc/chronyd.conf
sed -i '/server 1.centos.pool.ntp.org iburst/c server 202.170.119.9' /etc/chronyd.conf
sed -i '/server 2.centos.pool.ntp.org iburst/c server 103.246.188.99' /etc/chronyd.conf
sed -i '/server 3.centos.pool.ntp.org iburst/c #' /etc/chronyd.conf
systemctl enable chronyd
systemctl restart chronyd

# sshd config
sed -i '/Defaults    requiretty/c #Defaults    requiretty' /etc/sudoers
sed -i '/#UseDNS yes/c UseDNS no' /etc/ssh/sshd_config
systemctl restart sshd

# set SELINUX=permissive
setenforce 0
sed -i '/SELINUX=enforcing/c SELINUX=disabled' /etc/sysconfig/selinux
sed -i '/SELINUX=enforcing/c SELINUX=disabled' /etc/selinux/config

echo "export EDITOR=\"vim\"" >> .bashrc
echo "alias vi='vim'"  >> .bashrc
sed -i '/alias rm/d' /root/.bashrc
sed -i '/alias cp/d' /root/.bashrc
sed -i '/alias mv/d' /root/.bashrc


# Update to Lastest version 
yum -y update 

## Set snmpd
SNMPNAME=ProenCloud
echo "com2sec mynetwork 0.0.0.0/0 $SNMPNAME" > /etc/snmp/snmpd.conf
echo "group MyROGroup any mynetwork" >> /etc/snmp/snmpd.conf
echo "view all included .1 80" >> /etc/snmp/snmpd.conf
echo "access MyROGroup \"\" any noauth 0 all none none" >> /etc/snmp/snmpd.conf
echo "syslocation Thailand" >> /etc/snmp/snmpd.conf
echo "syscontact IT <[email protected]>" >> /etc/snmp/snmpd.conf
echo "" >> /etc/snmp/snmpd.conf
systemctl enable snmpd
systemctl start snmpd


# Set Hostname
HOSTNAMETODO="HOSTNAME"
hostnamectl set-hostname $HOSTNAMETODO --static


# Restart to Lastest
reboot


# Remove unuse kernel
yum -y remove kernel


# Set up Firewall

# Looping through the content of a file in Bash

while read p; do
  echo "$p"
done <peptides.txt

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