xshell连接centos失败的解决办法:1、打开虚拟机,设置子网IP;2、设置网关IP;3、修改网卡文件内容;4、通过“systemctl restart network”重启网络即可。
本文操作环境:CentOS 7系统、DELL G3电脑
xshell连接centos失败怎么办?
Xshell连接CentOS失败,记录一次CentOS7.6网络连接的步骤(笔记)
问题:本来在公司可以正常连接网络,回到学校换了学校的无线网络之后连接不上网络,Xshell连接Linux失败,CentOSping外网不通,这里记录一下解决办法(通过设置Linux静态Ip)。
打开虚拟机-编辑-虚拟网络编辑器-设置子网IP
上图打开NAT设置之后,设置网关IP(要和子网IP在一个网段)
-
修改网卡文件内容,使用vim模式打开网卡文件
打开网卡文件命令:
vi /etc/sysconfig/network-scripts/ifcfg-ens33
如果不知道网卡文件名,可以使用以下命令查看:ll /etc/sysconfig/network-scripts/ | grep ifcfg-en
打开之后修改和添加如下:
BOOTPROTO=static ONBOOT=yes IPADDR=192.168.25.73 GATEWAY=192.168.25.2 NETMASK=255.255.255.0 DNS1=114.114.114.114 DNS2=8.8.8.8
- IPADDR:为设置的IP,更改为和子网IP在同一网段的自定义IP
- GATEWAY:为虚拟网络编辑器设置的网关IP,这个要与自己的网关IP一致(注意)
- NETMASK:子网掩码
- 其它都一致即可
查看网关IP:
- 设置完成之后,保存退出,重启网络
systemctl restart network
- 查看CentOS中的IP,通过
ip addr
命令查看 - 打开WIndows下的命令行,输入cmd进入命令行,然后输入
ipconfig
命令查看IP,确保和CentOS下的IP在同一个网段即为设置成功 设置成功之后,本机pingCentOS,CentOSping本机,CentOSping外网都可以成功!!!
推荐:《centos使用教程》
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CentOS is an open source operating system based on RedHatEnterpriseLinux, suitable for server environments. 1. Select the appropriate media and options during installation and configure network, firewall and user permissions. 2. Use useradd, usermod and systemctl commands to manage users and services, and update software packages regularly. 3. Basic operations include using yum installation software and systemctl management services, and advanced features such as SELinux to enhance security. 4. Check the system log to solve common errors. Optimizing performance requires monitoring resources and cleaning of unnecessary files.

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.

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.


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