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6的不易姿势

2019-06-21 02:38 来源:未知

咱俩对service和chkconfig多少个指令都不面生,systemctl 是治本服务的基本点工具, 它结合了chkconfig 与 service功能于一体。

我们对service和chkconfig四个指令都不不熟悉,systemctl 是治本服务的第一工具, 它结合了chkconfig 与 service功用于一体。

systemctl is-enabled iptables.service
systemctl is-enabled servicename.service #询问服务是还是不是开机运转
systemctl enable *.service #开机械运输转服务
systemctl disable *.service #打消开机械运输转
systemctl start *.service #起步服务
systemctl stop *.service #甘休服务
systemctl restart *.service #重启服务
systemctl reload *.service #重复加载服务配置文件
systemctl status *.service #询问服务运作境况
systemctl --failed #来得运营失利的劳务

systemctl is-enabled iptables.service
systemctl is-enabled servicename.service #询问服务是或不是开机运维
systemctl enable *.service #开机械运输转服务
systemctl disable *.service #注销开机运维
systemctl start *.service #起步服务
systemctl stop *.service #甘休服务
systemctl restart *.service #重启服务
systemctl reload *.service #再度加载服务配置文件
systemctl status *.service #询问服务运作情形
systemctl --failed #显示运行败北的劳务

注:*新京葡娱乐场网址,代表有些服务的名字,如http的劳务名字为httpd

注:*代表某些服务的名字,如http的劳务名称为httpd

例如在CentOS 7 上安装http

例如在CentOS 7 上安装http

[root@CentOS7 ~]# yum -y install httpd
运营服务(等同于service httpd start)
systemctl start httpd.service
终止服务(等同于service httpd stop)
systemctl stop httpd.service
重启服务(等同于service httpd restart)
systemctl restart httpd.service
查看服务是或不是运营(等同于service httpd status)
systemctl status httpd.service
开机自运转服务(等同于chkconfig httpd on)
systemctl enable httpd.service
开机时禁用服务(等同于chkconfig httpd on)
systemctl disable httpd.service
查阅服务是还是不是开机运转 (等同于chkconfig --list)

 

越来越多CentOS相关消息见CentOS 专项论题页面 http://www.linuxidc.com/topicnews.aspx?tid=14

[root@CentOS7 ~]# yum -y install httpd
开头服务(等同于service httpd start)
systemctl start httpd.service
甘休服务(等同于service httpd stop)
systemctl stop httpd.service
重启服务(等同于service httpd restart)
systemctl restart httpd.service
查阅服务是或不是运行(等同于service httpd status)
systemctl status httpd.service
开机自运维服务(等同于chkconfig httpd on)
systemctl enable httpd.service
开机时禁用服务(等同于chkconfig httpd on)
systemctl disable httpd.service
查阅服务是不是开机运营 (等同于chkconfig --list)

本文长久更新链接地址:http://www.linuxidc.com/Linux/2014-11/109236.htm

新京葡娱乐场网址 1

[root@iZuf67u6816pmg3fc1bx5fZ ~]# rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
Retrieving http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-release-el7-5    ################################# [100%]
[root@iZuf67u6816pmg3fc1bx5fZ ~]# yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community/x86_64 MySQL Connectors Community                  42
mysql-tools-community/x86_64      MySQL Tools Community                       51
mysql56-community/x86_64          MySQL 5.6 Community Server                 344
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# yum -y install mysql-community-server
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-server.x86_64 0:5.6.37-2.el7 will be installed
--> Processing Dependency: mysql-community-common(x86-64) = 5.6.37-2.el7 for package: mysql-community-server-5.6.37-2.el7.x86_64
--> Processing Dependency: mysql-community-client(x86-64) >= 5.6.10 for package: mysql-community-server-5.6.37-2.el7.x86_64
--> Processing Dependency: perl(Data::Dumper) for package: mysql-community-server-5.6.37-2.el7.x86_64
--> Processing Dependency: perl(DBI) for package: mysql-community-server-5.6.37-2.el7.x86_64
--> Running transaction check
---> Package mariadb.x86_64 1:5.5.52-1.el7 will be obsoleted
---> Package mysql-community-client.x86_64 0:5.6.37-2.el7 will be obsoleting
--> Processing Dependency: mysql-community-libs(x86-64) >= 5.6.10 for package: mysql-community-client-5.6.37-2.el7.x86_64
---> Package mysql-community-common.x86_64 0:5.6.37-2.el7 will be installed
---> Package perl-DBI.x86_64 0:1.627-4.el7 will be installed
--> Processing Dependency: perl(RPC::PlServer) >= 0.2001 for package: perl-DBI-1.627-4.el7.x86_64
--> Processing Dependency: perl(RPC::PlClient) >= 0.2000 for package: perl-DBI-1.627-4.el7.x86_64
---> Package perl-Data-Dumper.x86_64 0:2.145-3.el7 will be installed
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.52-1.el7 will be obsoleted
---> Package mysql-community-libs.x86_64 0:5.6.37-2.el7 will be obsoleting
---> Package perl-PlRPC.noarch 0:0.2020-14.el7 will be installed
--> Processing Dependency: perl(Net::Daemon) >= 0.13 for package: perl-PlRPC-0.2020-14.el7.noarch
--> Processing Dependency: perl(Net::Daemon::Test) for package: perl-PlRPC-0.2020-14.el7.noarch
--> Processing Dependency: perl(Net::Daemon::Log) for package: perl-PlRPC-0.2020-14.el7.noarch
--> Processing Dependency: perl(Compress::Zlib) for package: perl-PlRPC-0.2020-14.el7.noarch
--> Running transaction check
---> Package perl-IO-Compress.noarch 0:2.061-2.el7 will be installed
--> Processing Dependency: perl(Compress::Raw::Zlib) >= 2.061 for package: perl-IO-Compress-2.061-2.el7.noarch
--> Processing Dependency: perl(Compress::Raw::Bzip2) >= 2.061 for package: perl-IO-Compress-2.061-2.el7.noarch
---> Package perl-Net-Daemon.noarch 0:0.48-5.el7 will be installed
--> Running transaction check
---> Package perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7 will be installed
---> Package perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================================================
 Package                                   Arch                     Version                          Repository                           Size
===============================================================================================================================================
Installing:
 mysql-community-client                    x86_64                   5.6.37-2.el7                     mysql56-community                    19 M
     replacing  mariadb.x86_64 1:5.5.52-1.el7
 mysql-community-libs                      x86_64                   5.6.37-2.el7                     mysql56-community                   2.0 M
     replacing  mariadb-libs.x86_64 1:5.5.52-1.el7
 mysql-community-server                    x86_64                   5.6.37-2.el7                     mysql56-community                    59 M
Installing for dependencies:
 mysql-community-common                    x86_64                   5.6.37-2.el7                     mysql56-community                   257 k
 perl-Compress-Raw-Bzip2                   x86_64                   2.061-3.el7                      base                                 32 k
 perl-Compress-Raw-Zlib                    x86_64                   1:2.061-4.el7                    base                                 57 k
 perl-DBI                                  x86_64                   1.627-4.el7                      base                                802 k
 perl-Data-Dumper                          x86_64                   2.145-3.el7                      base                                 47 k
 perl-IO-Compress                          noarch                   2.061-2.el7                      base                                260 k
 perl-Net-Daemon                           noarch                   0.48-5.el7                       base                                 51 k
 perl-PlRPC                                noarch                   0.2020-14.el7                    base                                 36 k

Transaction Summary
===============================================================================================================================================
Install  3 Packages ( 8 Dependent packages)

Total download size: 82 M
Downloading packages:
warning: /var/cache/yum/x86_64/7/mysql56-community/packages/mysql-community-common-5.6.37-2.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Public key for mysql-community-common-5.6.37-2.el7.x86_64.rpm is not installed
(1/11): mysql-community-common-5.6.37-2.el7.x86_64.rpm                                                                  | 257 kB  00:00:00     
(2/11): mysql-community-libs-5.6.37-2.el7.x86_64.rpm                                                                    | 2.0 MB  00:00:01     
(3/11): perl-Compress-Raw-Bzip2-2.061-3.el7.x86_64.rpm                                                                  |  32 kB  00:00:00     
(4/11): perl-Compress-Raw-Zlib-2.061-4.el7.x86_64.rpm                                                                   |  57 kB  00:00:00     
(5/11): perl-Data-Dumper-2.145-3.el7.x86_64.rpm                                                                         |  47 kB  00:00:00     
(6/11): perl-IO-Compress-2.061-2.el7.noarch.rpm                                                                         | 260 kB  00:00:00     
(7/11): perl-Net-Daemon-0.48-5.el7.noarch.rpm                                                                           |  51 kB  00:00:00     
(8/11): perl-PlRPC-0.2020-14.el7.noarch.rpm                                                                             |  36 kB  00:00:00     
(9/11): perl-DBI-1.627-4.el7.x86_64.rpm                                                                                 | 802 kB  00:00:00     
(10/11): mysql-community-client-5.6.37-2.el7.x86_64.rpm                                                                 |  19 MB  00:00:07     
(11/11): mysql-community-server-5.6.37-2.el7.x86_64.rpm                                                                 |  59 MB  00:00:16     
-----------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                          4.2 MB/s |  82 MB  00:00:19     
Retrieving key from file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
Importing GPG key 0x5072E1F5:
 Userid     : "MySQL Release Engineering <mysql-build@oss.oracle.com>"
 Fingerprint: a4a9 4068 76fc bd3c 4567 70c8 8c71 8d3b 5072 e1f5
 Package    : mysql-community-release-el7-5.noarch (installed)
 From       : file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Installing : mysql-community-common-5.6.37-2.el7.x86_64                                                                                 1/13 
  Installing : perl-Data-Dumper-2.145-3.el7.x86_64                                                                                        2/13 
  Installing : mysql-community-libs-5.6.37-2.el7.x86_64                                                                                   3/13 
  Installing : mysql-community-client-5.6.37-2.el7.x86_64                                                                                 4/13 
  Installing : perl-Net-Daemon-0.48-5.el7.noarch                                                                                          5/13 
  Installing : 1:perl-Compress-Raw-Zlib-2.061-4.el7.x86_64                                                                                6/13 
  Installing : perl-Compress-Raw-Bzip2-2.061-3.el7.x86_64                                                                                 7/13 
  Installing : perl-IO-Compress-2.061-2.el7.noarch                                                                                        8/13 
  Installing : perl-PlRPC-0.2020-14.el7.noarch                                                                                            9/13 
  Installing : perl-DBI-1.627-4.el7.x86_64                                                                                               10/13 
  Installing : mysql-community-server-5.6.37-2.el7.x86_64                                                                                11/13 
  Erasing    : 1:mariadb-5.5.52-1.el7.x86_64                                                                                             12/13 
  Erasing    : 1:mariadb-libs-5.5.52-1.el7.x86_64                                                                                        13/13 
  Verifying  : perl-Compress-Raw-Bzip2-2.061-3.el7.x86_64                                                                                 1/13 
  Verifying  : perl-Data-Dumper-2.145-3.el7.x86_64                                                                                        2/13 
  Verifying  : perl-IO-Compress-2.061-2.el7.noarch                                                                                        3/13 
  Verifying  : mysql-community-libs-5.6.37-2.el7.x86_64                                                                                   4/13 
  Verifying  : mysql-community-common-5.6.37-2.el7.x86_64                                                                                 5/13 
  Verifying  : 1:perl-Compress-Raw-Zlib-2.061-4.el7.x86_64                                                                                6/13 
  Verifying  : mysql-community-server-5.6.37-2.el7.x86_64                                                                                 7/13 
  Verifying  : perl-Net-Daemon-0.48-5.el7.noarch                                                                                          8/13 
  Verifying  : perl-DBI-1.627-4.el7.x86_64                                                                                                9/13 
  Verifying  : mysql-community-client-5.6.37-2.el7.x86_64                                                                                10/13 
  Verifying  : perl-PlRPC-0.2020-14.el7.noarch                                                                                           11/13 
  Verifying  : 1:mariadb-5.5.52-1.el7.x86_64                                                                                             12/13 
  Verifying  : 1:mariadb-libs-5.5.52-1.el7.x86_64                                                                                        13/13 

Installed:
  mysql-community-client.x86_64 0:5.6.37-2.el7    mysql-community-libs.x86_64 0:5.6.37-2.el7    mysql-community-server.x86_64 0:5.6.37-2.el7   

Dependency Installed:
  mysql-community-common.x86_64 0:5.6.37-2.el7   perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7   perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7  
  perl-DBI.x86_64 0:1.627-4.el7                  perl-Data-Dumper.x86_64 0:2.145-3.el7          perl-IO-Compress.noarch 0:2.061-2.el7        
  perl-Net-Daemon.noarch 0:0.48-5.el7            perl-PlRPC.noarch 0:0.2020-14.el7             

Replaced:
  mariadb.x86_64 1:5.5.52-1.el7                                       mariadb-libs.x86_64 1:5.5.52-1.el7                                      

Complete!
[root@iZuf67u6816pmg3fc1bx5fZ ~]# systemctl enable mysqld
[root@iZuf67u6816pmg3fc1bx5fZ ~]# systemctl start mysqld
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# mysql_secure_installation



NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MySQL to secure it, we'll need the current
password for the root user.  If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

Set root password? [Y/n] Y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] Y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] Y
 ... Success!

By default, MySQL comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] Y
 - Dropping test database...
ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist
 ... Failed!  Not critical, keep moving...
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] Y
 ... Success!




All done!  If you've completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!


Cleaning up...
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# 
[root@iZuf67u6816pmg3fc1bx5fZ ~]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 14
Server version: 5.6.37 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql> show databases;
 -------------------- 
| Database           |
 -------------------- 
| information_schema |
| mysql              |
| performance_schema |
 -------------------- 
3 rows in set (0.00 sec)

mysql> 

 

 

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