CentOS 7.0 uses firewall as a firewall by default and uses systemctl to manage services and programs, including service and chkconfig
1. View the default firewall status (not running when turned off, running when turned on)
[root@localhost ~]# firewall-cmd --state
2. Check the status of the firewall
Added by kabucek on Fri, 03 Jul 2020 19:18:49 +0300
Modify MySqlMariaDB password
Modify the original password as soon as you know it
1 Use the SET PASSWORD command to change the password
2 UPDATE Command Modify Password
3 mysqladim change password
2 Forget the original password to modify
Modify MySql/MariaDB password
Change Passwor ...
Added by mike760534211 on Sat, 27 Jun 2020 19:43:37 +0300
1. What is PXE
2. Working process of PXE
2, Realize network manual installation
1. System environment preparation
2. Install and configure dhcp service
3. Install and configure tftp service
4. Install and configure httpd service
5. Configure PXE boot program
(1) PX ...
Added by webweever on Fri, 26 Jun 2020 09:39:26 +0300
About kolla ansible
kolla's mission is to provide production level, out of the box delivery capabilities for the openstack cloud platform. kolla's basic idea is that all services are containers. All services are run based on docker, and one container can run only one service (process), so as to run do ...
Added by randomthinker on Sat, 13 Jun 2020 11:25:04 +0300
Yum (yellow updater modified) is an open source, widely used command line and graphics based package management tool. It is used to manage RPM based Linux systems, including but not limited to RedHat Linux, CentOS, and Oracle Linux. It is used to install, update, remove, and search packages on the system.
The installation package is not limite ...
Added by veluit06 on Sat, 23 May 2020 10:19:53 +0300
Write in front
Because docker engine docker is not recommended officially, it cannot be installed, so now install docker CE.
Refer to official documents https://docs.rancher.cn/rancher2x/install-prepare/basic-environment-configuration.html#_4-1-docker%E5%AE%89%E8%A3%85
1. Turn off the firewall
Added by 2gd-2be-2rue on Thu, 21 May 2020 17:57:29 +0300
Ancient poetry is the treasure of Chinese culture. I remember that when I was an Exchange Student in South Korea, I saw that they learned our ancient poetry, including Chinese and translation versions. I was proud of myself and even remembered some familiar poems at some time.
In this paper, we will generate some ancient poetry for us through i ...
Added by Bootsman123 on Wed, 20 May 2020 20:03:35 +0300
What is a container?In life, our common containers are all kinds of bottles, jars and jars, all kinds of things that can hold other materials are called containers. The characteristics of containers are that they have a good isolation function, which makes different materials isolated from each other. In addition, containers are convenient to t ...
Added by bbbaldie on Sat, 16 May 2020 19:21:00 +0300
The tune2fs command allows system administrators to adjust, set, and view file system parameters on a Linux ext2, ext3, or ext4 file system. tune2fs -l displays only the content on the superblock. Sometimes when using the tune2fs command, you encounter an error like "Couldn't find valid filesystem superblock". This may be because you ...
Added by egroeg41 on Sun, 10 May 2020 17:14:41 +0300
Automatic text abstraction and keyword extraction belong to the category of natural language processing.One advantage of extracting a summary is that the reader can tell with minimal information whether the article is meaningful or valuable to him or her and whether he or she needs to read it in more detail. The advantage of extracting a keywor ...
Added by khaine on Fri, 08 May 2020 04:03:21 +0300