NTP client on 3CX v20 on Debian 12

[Alain.R.]

I try to configure NTP on a 3CX v20 on Debian 12. I just run the command timedatectl status and I get :
System clock synchronized: no
NTP service: n/a

how to proceed ?

thanks
Alain Rime

 

[Alphabetic]

It's weird actually, cos I've been having a problem with the NTP client on a debian install with the ISO and i've just had to resolve manually.

sudo nano /etc/ntp.conf

stick your NTP server in there "server uk.pool.ntp.org" for example
save it out.

sudo systemctl enable ntp
sudo systemctl restart ntp

 

[Alain.R.]

Hello,

I tried the command :
sudo systemctl enable ntp

I get the error :
Failed to enable unit: Unit file ntp.service does not exist.

I have installed this 3CX v20 from the official ISO : https://downloads-global.3cx.com/downloads/debian12iso/debian-amd64-netinst-3cx.iso

I have the version Version 20.0 Update 1 (Build 731 Release).

I also check on another system that I installed in v20, same issue.

Best Regards,
Alain

 

[Alphabetic]

sudo apt-get update sudo apt-get install ntp

 

[Alain.R.]

I installed it and use the following command:
sudo systemctl enable ntp

I get :
Failed to enable unit: Refusing to operate on alias name or linked unit file: ntp.service

 

[Alphabetic]

try sudo systemctl enable ntp.service

 

[Alain.R.]

Still an error :
sudo systemctl enable ntp.service
Failed to enable unit: Refusing to operate on alias name or linked unit file: ntp.service

I also observe that there is no /etc/ntp.conf but only /etc/ntpsec/ntp.conf
So it seems that your repository is not installing ntp but ntpsec.
Could you provide more info about the exact procedure to configure it ?
Thanks.

 

[Alphabetic]

https://reintech.io/blog/configuring-ntp-client-debian-12

There's nothing more really to it.

 

[MrChips]

ntp out of the box seems to be working fine! Its nftables that is the issue!

add udp 123 to the /etc/nftables.conf file.

I just included it into the existing 3cx udp ports! (in bold below!)

# 3CX PhoneSystem specific
tcp dport { 80,443,5000,5001,5015,5060,5061,5062,5090 } ct state new counter accept comment "Accept 3CX PhoneSystem TCP ports"
udp dport { 69,123,5060,5090,7000-10999 } counter accept comment "Accept 3CX PhoneSystem UDP ports"

The ntp conf that pertains to above!

/etc/ntpsec/ntp.conf

# By default, exchange time with everybody, but don't allow configuration.
restrict default kod nomodify nopeer noquery limited