HTTP协议(HyperText Transfer Protocol,超文本传输协议):是一种发布和接收 HTML页面的方法. HTTPS(Hypertext Transfer Protocol over Secure Socket Layer)简单讲是HTTP的安全版,在HTTP下加入SSL层. SSL(Secure Sockets Layer 安全套接层)主要用于Web的安全传输协议,在传输层对网络连接进行加密,保障在Internet上数据传输的安全. HTTP的端口号为80, HTTPS的…

1.升级docker compose ,docker官方安装方法 $ sudo curl -L "https://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose 这个下载过程会比较慢 修改权限 $ sudo chmod +x /usr/local/bin/docker-compose 查看…

系统环境 # cat /etc/redhat-release Red Hat Enterprise Linux release 8.0 (Ootpa) 安装依赖 # yum install -y yum-utils device-mapper-persistent-data lvm2 Last metadata expiration check: 0:33:56 ago on Tue 18 Feb 2020 12:30:53 AM UTC. Dependencies resolved. ====…

CISCO运维记录之3650堆叠设备升级IOS(Version 03.03.02.SG版本存在bug) 1. 问题详情 思科45系列交换机使用Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL-M), Version 03.03.02.SG RELEASE SOFTWARE (fc1)版本存在bug,提示使用内存不足10% ,以下是监控系统告警记录: 2. 问题分析: sh tech ( if unable to collect show t…

说明: 1.此环境为未安装过docker服务的环境, 如果已经安装,则自行卸载. 2.以下环境中上传的包及离线yum源默认为/home目录下,如无特殊说明,以此目录为准 步骤一:下载docker离线安装包,下载地址 链接:https://pan.baidu.com/s/13nzMoQJ6A4ZCbW2D8han9Q 提取码:4rod 步骤二:将下载的包上传服务器,并解压到/home目录下,配置离线yum源 [root@localhost home]# tar xvf docker-.tar.gz…

Centos8安装Docker提示:package docker-ce-3:19.03.8-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed centos8默认使用podman代替docker,所以需要containerd.io 执行命令: yum install https://download.docker.com/linux/fedora/30/x86_64/…

一,下载docker 1,说明:docker的打包对于fedora的支持很及时, 所以在fedora 30/31上都可以直接使用官方的rpm包 下载地址: https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/ 2,下载docker所需的三个安装包到source目录 [root@localhost source]# wget https://download.docker.com/linux/fedora/30/x8…

systemctl stop docker rpm -qa | grep docker 看到那个删除那个yum erase docker \ docker-client \ docker-client-latest \ docker-common \ find /etc/systemd -name '*docker*' -exec rm -f {} \; find /lib/systemd -name '*docker*' -exec rm -f {} \; #删除以前已有的镜像和容器rm -r…

1.错误内容 package docker-ce-3:19.03.2-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed - cannot install the best candidate for the job - package containerd.io-1.2.2-3.3.el7.x86_64 is excluded - package container…

执行 yum install docker-ce docker-ce-cli containerd.io 提示: 错误: 问题: package docker-ce-3:19.03.8-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed 解决方法: 进入阿里云镜像地址:https://mirrors.aliyun.com/docker-ce/linux/centos/…