绝大多数服务器出于安全考虑一般都禁止了使用 root 账户登录系统，一般都是通过普通用户远程连接到服务器后，再使用 su 命令切换到 root 执行一些需要超级权限的工作。但是这样的操作流程也会存在不安全因素，如果系统有多个普通用户，每个用户都需要执行一些需要 root 权限的操作，如果都使用 s...

云服务器 ECS Linux 服务器 umount 数据盘提示：device is busy

在云服务器 ECS Linux 服务器上，卸载数据盘挂载时，有时会出现如下错误信息： device is busy

云服务器 ECS Linux 服务器判断磁盘分区格式化

云服务器 ECS Linux 在挂载磁盘或者分区之前，需要对磁盘获取分区进行格式化。如果没有格式化，进行挂载会报错： mount /dev/xvdc /mnt/ mount: you must specify the filesystem type

云服务器 ECS Linux 服务器 nginx 禁止空主机头配置

如果 Nginx 配置了空主机头，那么任意域名解析指向到服务器IP，都可以访问站点，为了防止域名解析恶意指向主机，可以将 Nginx 默认的空主机头禁止，方法是通过修改 Nginx 的主配置文件 nginx.conf ，使其主机头返回错误信息 500

云服务器 ECS Linux 服务器 message 日志报错：kernel: TCP: time

云服务器 ECS ping 外部 IP 丢包，ping 出现错误： ping: sendmsg: Operation not permitted 同时，查询服务器 /var/log/message 日志，发现大量类似如下错误信息： Aug 4 17:25:37 static1 kernel: ...

共有128条

< 2 3 4 5 ... 13 >

跳转至： GO

更新时间 2024-05-01 20:51:53

本页面内关键词为智能算法引擎基于机器学习所生成，如有任何问题，可在页面下方点击"联系我们"与我们沟通。

产品推荐

{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1zI1mn8FR4u4jSZFPXXanzFXa-232-232.png","contentLink":"https://www.aliyun.com/product/alinux","title":"Alibaba Cloud Linux 2","des":"Alibaba Cloud Linux 2(原Aliyun Linux 2) 是阿里云推出的下一代 Linux 发行版，它为云上应用程序环境提供 Linux 社区的最新增强功能，在提供云上最佳用户体验的同时，也针对阿里云基础设施做了深度的优化。","link1":"https://ecs.console.aliyun.com/#/home","btn1":"产品控制台","link2":"https://ecs-buy.aliyun.com/buyRedirect?spm=5176.cnalinux.0.0.549a6fc5YgcSNe&regionId=cn-beijing&imageId=aliyun-2.1903-x64-20G-alibase-20190327.vhd","btn2":"立即使用","btn3":"产品文档","link3":"https://help.aliyun.com/document_detail/111881.html?spm=5176.cnalinux.0.0.549a6fc5YgcSNe","infoGroup":[{"infoName":"产品入门","infoContent":{"firstContentName":"用户指导","firstContentLink":"https://help.aliyun.com/document_detail/111881.html","lastContentLink":"https://help.aliyun.com/document_detail/156214.html","lastContentName":"常见问题"}},{"infoName":"最新动态","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/154951.html","firstContentName":"产品动态","lastContentLink":"","lastContentName":""}},{"infoName":"相关产品","infoContent":{"firstContentLink":"https://www.aliyun.com/product/ecs","firstContentName":"云服务器 ECS","lastContentName":"","lastContentLink":""}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"mPaaS 小程序","bannerContent":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。<br>不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","contentTitle":"提供即开即用的端上体验","homePageLink":"https://common-buy.aliyun.com/?spm=5176.14673561.J_8751524360.2.56702709BussF3&commodityCode=mpaas_beta#/open","homePageName":"免费试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"mPaaS","subtitle":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","linkUrl":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1zI1mn8FR4u4jSZFPXXanzFXa-232-232.png","contentLink":"https://www.aliyun.com/product/alinux","title":"Alibaba Cloud Linux 2","des":"Alibaba Cloud Linux 2(原Aliyun Linux 2) 是阿里云推出的下一代 Linux 发行版，它为云上应用程序环境提供 Linux 社区的最新增强功能，在提供云上最佳用户体验的同时，也针对阿里云基础设施做了深度的优化。","link1":"https://ecs.console.aliyun.com/#/home","btn1":"产品控制台","link2":"https://ecs-buy.aliyun.com/buyRedirect?spm=5176.cnalinux.0.0.549a6fc5YgcSNe&regionId=cn-beijing&imageId=aliyun-2.1903-x64-20G-alibase-20190327.vhd","btn2":"立即使用","btn3":"产品文档","link3":"https://help.aliyun.com/document_detail/111881.html?spm=5176.cnalinux.0.0.549a6fc5YgcSNe","infoGroup":[{"infoName":"产品入门","infoContent":{"firstContentName":"用户指导","firstContentLink":"https://help.aliyun.com/document_detail/111881.html","lastContentLink":"https://help.aliyun.com/document_detail/156214.html","lastContentName":"常见问题"}},{"infoName":"最新动态","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/154951.html","firstContentName":"产品动态","lastContentLink":"","lastContentName":""}},{"infoName":"相关产品","infoContent":{"firstContentLink":"https://www.aliyun.com/product/ecs","firstContentName":"云服务器 ECS","lastContentName":"","lastContentLink":""}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"mPaaS 小程序","bannerContent":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。<br>不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","contentTitle":"提供即开即用的端上体验","homePageLink":"https://common-buy.aliyun.com/?spm=5176.14673561.J_8751524360.2.56702709BussF3&commodityCode=mpaas_beta#/open","homePageName":"免费试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"mPaaS","subtitle":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","linkUrl":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}}