阿里云服务器发送邮件:Connection could not be established with host smtp.qq.com [Connection timed out #110] 一.总结 一句话总结: 端口号port 改成 465,加密方式 encryption 改用 ssl 二.Connection could not be established with host smtp.163.com 转自或参考:Connection could not be established
今天安装完带图形界面的CentOS 7后,在Terminal中运行yum安装命令时报了以下错误: Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock32 error was 14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error&