Install Packages
apt-get -y install sudo unzip rsync sysstat cifs-utils nmap tcpdump tmux virt-what chrony
Setup chrony
The following commands install chrony and modify the basic chrony.conf file to remove usage of the default pool and any configured servers, and replace this with the 3 (very reliable) time servers from the German PTB.
# Replace all existing servers sed -i -e "s/^server /# server /" /etc/chrony/chrony.conf # Replace pool setting sed -i -e "s/^pool /# pool /" /etc/chrony/chrony.conf # Add PTB Servers cat << EOFF >> /etc/chrony/chrony.conf # Servers to use server ptbtime1.ptb.de iburst server ptbtime2.ptb.de iburst server ptbtime3.ptb.de iburst EOFF # Enable Chrony systemctl enable chrony # Stop (just in case it was started), then start and get status systemctl stop chrony systemctl start chrony
Check chrony
systemctl status chrony chronyc sources