centos不是自带服务器的,安装方法:首先在root操作下新增oper用户;然后将oper用户加入到sudoers中;接着切换到oper重新登录;最后创建常用目录即可。
centos不是自带服务器的,安装方法:
1. 新增oper用户(root下操作)
useradd oper # 修改密码:根据提示输入两次密码 passwd oper
将oper用户加入到sudoers中(可使用sudo命令)
vi /etc/sudoers # 找到类似地方并加入 oper ALL=(ALL) ALL
切换到oper重新登录(重要)
创建常用目录
sudo mkdir /data sudo chown -R oper data cd /data mkdir apps
2. 安装数据库mysql5.7
# Step0:安装所需的yum命令 sudo yum -y install yum-utils # Step1: 检测系统是否自带安装mysql sudo yum list installed | grep mysql # Step2: 删除系统自带的mysql及其依赖命令: sudo yum -y remove mysql-libs.x86_64 # Step3: 给CentOS添加rpm源,并且选择较新的源命令: wget dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm sudo yum localinstall mysql-community-release-el7-5.noarch.rpm sudo yum repolist all | grep mysql sudo yum-config-manager --disable mysql55-community sudo yum-config-manager --disable mysql56-community sudo yum-config-manager --enable mysql57-community-dmr sudo yum repolist enabled | grep mysql # Step4:安装mysql 服务器命令: sudo yum install mysql-community-server # Step5: 启动mysql命令: service mysqld start # Step6: 查看mysql是否自启动,并且设置开启自启动命令: chkconfig --list | grep mysqld chkconfig mysqld on # Step7: mysql安全设置命令: # 获取root临时密码 grep 'temporary password' /var/log/mysqld.log # 修改root密码 mysql_secure_installation # 根据提示修改root密码 ... # 登录命令(根据提示输入root密码登录): mysql -u root -p # 创建数据库: create database clouds_business; 创建用户: create user yunch identified by 'Yunch!2#$5^'; # 授权数据库给用户 grant all on clouds_business.* to yunch;
3. 安装jdk1.8
# 1、在Oracle官方网址下载linux-64位的jdk的RPM包,如:jdk-8u121-linux-x64.rpm # 2、使用SFTP工具将jar包上传至 /data/apps目录下 # 3、执行上传的rpm文件,如:rpm -ivh jdk-8u***-linux-x64.rpm # 4、配置环境变量(下面代码中版本根据实际情况调整) vi /etc/profile JAVA_HOME=/usr/java/jdk1.8.0_191-amd64 JRE_HOME=/usr/java/jdk1.8.0_191-amd64/jre PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib export JAVA_HOME JRE_HOME PATH CLASSPATH # 退出vi,使环境变量生效 source /etc/profile
4. 安装zookeeper
# 下载zookeeper安装包(建议3.4及以下版本) wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz # 解压 tar -xvf zookeeper-3.4.14.tar.gz rm -f *.gz cd zookeeper-3.4.14 cd conf # 将sample配置文件重命名成正式文件 mv zoo_sample.cfg zoo.cfg # 启动zookeeper ../bin/zkServer.sh start # 执行lsof命令观察 lsof -i 2181
5. 安装redis
wget http://download.redis.io/redis-stable.tar.gz tar -xvf ... mv redis-stable redis cd redis vi redis.conf # 修改密码和端口号 sudo make && sudo make install # 运行redis nohup redis-server redis.conf & # 日志在 nohup.out里面
6. 安装nginx
sudo yum -y install nginx # 修改权限 sudo chown -R oper /etc/nginx # 修改/etc/nginx/nginx.conf配置 #在 conf.d里面增加.conf文件 # 重启命令 sudo nginx -s reload
相关教程推荐:centos教程
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CentOS is the first choice for server and enterprise environments for its superior security, stability and performance. 1) Security provides forced access control through SELinux to improve system security. 2) Stability is supported by the LTS version for up to 10 years to ensure the stability of the system. 3) Performance significantly improves system response speed and resource utilization by optimizing kernel and system configuration.

CentOS alternatives should have the characteristics of stability, compatibility, community support and package management. 1.AlmaLinux provides 10 years of support, 2. RockyLinux is initiated by the founder of CentOS to ensure compatibility with CentOS. Migration cost and performance optimization should be considered when choosing.

CentOS is an open source distribution based on RedHatEnterpriseLinux, focusing on stability and long-term support, suitable for a variety of server environments. 1. The design philosophy of CentOS is stable and suitable for web, database and application servers. 2. Use YUM as the package manager to release security updates regularly. 3. Simple installation, you can build a web server with a few commands. 4. Advanced features include enhanced security using SELinux. 5. Frequently asked questions such as network configuration and software dependencies can be debugged through nmcli and yumdeplist commands. 6. Performance optimization suggestions include tuning kernel parameters and using a lightweight web server.

CentOS is widely used in server management and web hosting. Specific methods include: 1) using yum and systemctl to manage the server, 2) install and configure Nginx for web hosting, 3) use top and mpstat to optimize performance, 4) correctly configure the firewall and manage disk space to avoid common problems.

CentOS is a stable, enterprise-grade Linux distribution suitable for server and enterprise environments. 1) It is based on RedHatEnterpriseLinux and provides a free, open source and compatible operating system. 2) CentOS uses the Yum package management system to simplify software installation and updates. 3) Support advanced automation management, such as using Ansible. 4) Common errors include package dependency and service startup issues, which can be solved through log files. 5) Performance optimization suggestions include the use of lightweight software, regular cleaning of the system and optimization of kernel parameters.

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