1， 未能保存“hosts”: User did not grant permission. windows出现，如何解决
解决方案：修改hosts文件无法保存/只能另存为txt_Repuuunzel的博客-CSDN博客
2，未能保存“hosts”: User did not grant permission. windows出现，如何解决
解决方案：修改hosts文件无法保存/只能另存为txt_Repuuunzel的博客-CSDN博客
查询当前用户 net user
3，repo源镜像仓库
centos7常用的国内yum源整理_centos7 官方源-CSDN博客
4， centos配置ntpd时间同步服务
centos 配置ntp时间同步服务_ntpdate 0.centos.pool.ntp.org-CSDN博客
5， ES) Enter current password for root (enter for none): ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) Enter current password for root (enter for none): ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) Enter current password for root (enter for none):
解决： 解决mysql：ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO/YES) - Winton-H - 博客园 (cnblogs.com)
旧版命令： SET PASSWORD FOR 'root'@'localhost' = PASSWORD('123456');
6，ERROR 1290 (HY000): The MariaDB server is running with the --skip-grant-tables option so it cannot execute this statement
The MariaDB server is running with the --skip-grant-tables option so it cannot execute this statemen_Gopher2035的博客-CSDN博客
7， Sep 12 02:16:22 master systemd[1]: Unit mariadb.service entered fa Sep 12 02:16:22 master systemd[1]: mariadb.service failed. Sep 12 02:16:22 master polkitd[50603]: Unregistered Authentication Sep 12 02:16:22 master sudo[122715]: pam_unix(sudo:session): sessi
启动mariadb/mysql报错Job for mariadb.service failed because the control process exited with error code解决_河北强商网络科技有限公司的博客-CSDN博客
sudo kill 124996
8， windows系统弹出U盘提示“进程正在使用中”解决方法
U盘/移动硬盘拔出提示被占用情况的处理办法_sangforpwex_twocanis的博客-CSDN博客
- openstack在web页面中创建镜像时出现“错误: 无法获取镜像。”
openstack无法获取镜像问题 - 简书 (jianshu.com)
