[APPM]NTP Configuration

SecureKi OTP use Time-based One-Time Passwords (TOTP) which require precise time synchronization between the server and the authentication system.

Steps

1. Access the APPM server.

2. Check current time status

timedatectl status

Expected Output:

System clock synchronized: yes
NTP service: active

3. Verify NTP Service Status

systemctl status chronyd

4. Enable and Start NTP Synchronization

# Enable NTP synchronization
sudo timedatectl set-ntp true

# Enable chrony:
sudo systemctl enable chronyd
sudo systemctl start chronyd

5. Configure NTP Servers

Using chrony:

# Edit chrony configuration
sudo vi /etc/chrony.conf

Add or modify NTP servers:

# Put hosted NTP server or Public NTP servers (choose one or multiple)
server 192.168.227.131 iburst
server time.google.com iburst
pool 2.rocky.pool.ntp.org iburst

Save and restart:

sudo systemctl restart chronyd

6. Verify Network Connectivity to NTP Servers

# Test connectivity to NTP servers
ping -c 192.168.227.131
ping -c 4 time.google.com

# Test NTP port connectivity
nc -zuv 192.168.227.131 123
nc -zuv time.google.com 123

# For chrony, check sources
chronyc sources -v

7. Monitor Time Synchronization Progress

# Watch time synchronization status
watch -n 1 "timedatectl status"

# Alternative monitoring commands
chronyc tracking    # For chrony
ntpq -p             # For ntp

8. Timezone Configuration

# Check current timezone
timedatectl | grep "Time zone"

# List available timezones
timedatectl list-timezones

# Set correct timezone (example for Asia/Kuala_Lumpur)
sudo timedatectl set-timezone Asia/Kuala_Lumpur