docker run -d --restart always --name ntp --cap-add SYS_TIME -p 123:123/udp tiroso/ntp-server
이 컨테이너는 NTP 서비스를 구성합니다.
docker-compose 설정 파일로 다음과 같이 설정합니다.
version: '2'
services:
ntp:
image: mcchae/ntp-server
container_name: ntp_server
ports:
- "123:123/udp"
ntptest:
image: mcchae/ntp-server
container_name: ntp_client
links:
- ntp
command: /bin/sleep 1000
$ docker-compose exec ntp bash
/# tcpdump -i any -nn udp
$ docker-compose exec ntptest bash
root@149fd306800e:/# apt update && apt install -y iputils-ping ntpdate
root@149fd306800e:/# ntpdate -q -o 2 -dv -p 1 -t 1 ntp
1 Apr 08:47:26 ntpdate[624]: ntpdate [email protected] (1)
Looking for host ntp and service ntp
192.168.160.2 reversed to ntp_server.docker-ntp-server_default
host found : ntp_server.docker-ntp-server_default
transmit(192.168.160.2)
receive(192.168.160.2)
server 192.168.160.2, port 123
stratum 5, precision -17, leap 00, trust 000
refid [192.168.160.2], delay 0.02611, dispersion 0.00000
transmitted 1, in filter 1
reference time: e04c4e9d.3e582d5b Mon, Apr 1 2019 8:47:25.243
originate timestamp: e04c4e9e.3e5a2943 Mon, Apr 1 2019 8:47:26.243
transmit timestamp: e04c4e9e.3e45168b Mon, Apr 1 2019 8:47:26.243
filter delay: 0.02611 0.00000 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: -0.00013 0.000000 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.02611, dispersion 0.00000
offset -0.000137
1 Apr 08:47:26 ntpdate[624]: adjust time server 192.168.160.2 offset -0.000137 sec
Content type
Image
Digest
Size
13.1 MB
Last updated
almost 6 years ago
docker pull tiroso/ntp-server