


Detailed graphic and text explanation of the steps to install CentOS6.x (6.8) on ESXI6.5
The following column centos system tutorial will introduce to you the method to solve the Initial setup of CentOS Linux 7 prompt when booting Centos7 for the first time. I hope it will be helpful to friends in need!
Preface
Three versions of VMware
workstation: stand-alone level, used in personal desktop systems, requires operating system support
servier: workgroup level , used for servers, requires operating system support
esxi: enterprise-level, used for servers, does not require operating system support
Exsi is a virtualization system, different from VMware, VirtualBox, it It does not need to be installed on other operating systems and runs directly on bare metal; it takes up very little system resources and is easy to manage, so it is used by most small and medium-sized companies;
About the client vshpere client
Because ESXi no longer supports the client, our image can only be uploaded to the server first (you can use workstation to connect to the server, which will not be explained here)
Vmware Workstation installation It's basically the same as this, you can refer to my installation steps for installation. Only the way to create the virtual machine is different at the beginning
Installation diagram:
The image has been uploaded to the server, CentOS-6.8-x86_64-bin-DVD1.iso
Create a new virtual machine
Select a name and guest operating system
Select storage
Custom settings
is about to be completed and your virtual machine configuration will be displayed
If the configuration is not enough, you can modify it
Load the image into the newly created virtual machine, and select the data storage ISO file for the CD/DVD drive
Browse and select the required iso
Now start running, first turn on the power and open the console
Restart, or press Enter
The following interface will appear
Interface description
Install or upgrade an existing system 安装或升级现有的系统 install system with basic video driver 安装过程中采用 基本的显卡驱动 Rescue installed system 进入系统修复模式 Boot from local drive 退出安装从硬盘启动 Memory test 内存检测Then enter the following interface. A question will appear whether to test the CD media. Select "Skip" here to skip the test.
Storage device warning, select the first item, ignore all data, create a new one, there is nothing
Set the host The name
can be changed according to your own needs. You can use the default host name
Select the time zone and uncheck System clock users UTC (set daylight saving time)
Set root password
If your password is too simple, the system will automatically prompt you to choose to use it no matter what
Select Create Custom Layout for disk layout
#You can see the capacity of the hard drive. What I show here is 16G. Now customize the partition. Note: Before partitioning, you must first plan how to partition
Basic requirements for Linux system partitions
Now start creating disk partitions and select Standard Partition Create
Follow the settings in my picture step by step
Then create and select Free ->Create
Still ->Create
Then->swap
Repeat Following the above steps to create a partition, the rest is allocated to / Note: Select Fill to maximum allowable size here
##Base System
##Development
After checking, then->Next
Start the installation
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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.

Alternatives to CentOS include RockyLinux, AlmaLinux, OracleLinux, and SLES. 1) RockyLinux and AlmaLinux provide RHEL-compatible binary packages and long-term support. 2) OracleLinux provides enterprise-level support and Ksplice technology. 3) SLES provides long-term support and stability, but commercial licensing may increase costs.

Alternatives to CentOS include UbuntuServer, Debian, Fedora, RockyLinux, and AlmaLinux. 1) UbuntuServer is suitable for basic operations, such as updating software packages and configuring the network. 2) Debian is suitable for advanced usage, such as using LXC to manage containers. 3) RockyLinux can optimize performance by adjusting kernel parameters.

The CentOS shutdown command is shutdown, and the syntax is shutdown [Options] Time [Information]. Options include: -h Stop the system immediately; -P Turn off the power after shutdown; -r restart; -t Waiting time. Times can be specified as immediate (now), minutes ( minutes), or a specific time (hh:mm). Added information can be displayed in system messages.

The key differences between CentOS and Ubuntu are: origin (CentOS originates from Red Hat, for enterprises; Ubuntu originates from Debian, for individuals), package management (CentOS uses yum, focusing on stability; Ubuntu uses apt, for high update frequency), support cycle (CentOS provides 10 years of support, Ubuntu provides 5 years of LTS support), community support (CentOS focuses on stability, Ubuntu provides a wide range of tutorials and documents), uses (CentOS is biased towards servers, Ubuntu is suitable for servers and desktops), other differences include installation simplicity (CentOS is thin)

Steps to configure IP address in CentOS: View the current network configuration: ip addr Edit the network configuration file: sudo vi /etc/sysconfig/network-scripts/ifcfg-eth0 Change IP address: Edit IPADDR= Line changes the subnet mask and gateway (optional): Edit NETMASK= and GATEWAY= Lines Restart the network service: sudo systemctl restart network verification IP address: ip addr


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