When we use the date command to change system DateTime:
date -s '2021-03-04 11:21:13'
to change system time, the system return
Thu Mar 4 11:21:13 CST 2021
It looks like the time have already changed successfully, but run the date command again and found the time still the old.
The reason is most modern Linux system has ntp running by default, we can use timedatectl command to check
Local time: Thu 2021-03-04 09:45:24 CST
Universal time: Thu 2021-03-04 01:45:24 UTC
RTC time: Thu 2021-03-04 01:45:24
Time zone: Asia/Shanghai (CST, +0800)
Network time on: yes
NTP synchronized: no
RTC in local TZ: no
As we can see, the Network time is on, so if we want to change the system time manually, we should shut down the ntp by using the following command:
timedatectl set-ntp false
Then you can change the system time.
Posted in Linux
Tagged Linux, ntp
Docker is a very powerful tool to deploy application, no need to worry about the Operation System, docker app delivered with runtime, it means you don’t need prepare the runtime and dependencies and just load the docker images and run it as a container:
First, let’s search the phpmyadmin image from dockerhub,just run the following command:
docker search phpmyadmin
(base) root@iZj6chew62f61q6kwc6ogsZ:/home/wwwroot/tech.ipv6center.org/wp-includes/js# docker search phpmyadmin
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
phpmyadmin/phpmyadmin A web interface for MySQL and MariaDB. 1106 [OK]
phpmyadmin phpMyAdmin - A web interface for MySQL and M… 136 [OK]
nazarpc/phpmyadmin phpMyAdmin as Docker container, based on off… 61 [OK]
bitnami/phpmyadmin Bitnami Docker Image for phpMyAdmin 22 [OK]
Then ,chose the first image and run the following command:
docker run --name phpmyadmin4 -d -e PMA_HOST=rm-desh38b2h3b7vo.mysql.rds.aliyuncs.com -p 13306:80 phpmyadmin/phpmyadmin
-e PMA_HOST specify the host you want to connect, here is the aliyun RDS mysql server
-p Port mapping, map the host 13306 to the container phpmyadmin4’s 80 port, you can just http://host:133306 got the phpmyadmin login page
Docker is easy to use, you just need run a command and we got the phpmyadmin for mysql.