Timezone/Timesync

Set the TimeZone

    vi /etc/localtime 

Available timezone configs can be found in the /usr/share/zoneinfo directory

Install NTP

For RHEL, CentOS, Fedora, etc.

    sudo yum install ntp ntpdate ntp-doc -y 

For Debian, Ubuntu

    sudo apt install ntp ntpdate ntp-doc

Load (enable) NTP Service

NTP Service

    service ntpd * 
    status 
    enable 
    disable 
    start 
    stop 
    restart 
    
    systemclt * ntpd.service 
    status 
    enable 
    disable 
    start 
    stop 
    restart 
    
    mask 
    unmask 

Set NTP Sync

    ntpdate pool.ntp.org 

Edit NTP Pool Servers

    vi /etc/ntp.conf 

    server 0.centos.pool.ntp.org iburst 
    server 1.centos.pool.ntp.org iburst 
    server 2.centos.pool.ntp.org iburst 
    server 3.centos.pool.ntp.org iburst 
    
    server 0.europe.pool.ntp.org 
    server 1.europe.pool.ntp.org 
    

Start Service