大致参考
https://doc.owncloud.org/server/9.0/admin_manual/installation/source_installation.html#ubuntu-
installation-label
国内可能安装 libapache2-mod-php5 出错
E: Package 'libapache2-mod-php5' has no installation candidate
编辑 /etc/apt/sources.list 加上
deb http://ftp.es.debian.org/debian stable main contrib non-free
deb-src http://ftp.es.debian.org/debian stable main contrib non-free
deb http://ftp.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.debian.org/debian/ wheezy-updates main contrib non-free
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free
再运行 sudo apt-get update
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安装 mysql
安装中设置mysql的root账号和密码
sudo apt-get install mysql-server
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Exchange 2010/2013 安装完邮箱服务角色，默认自带一���数据库 "Mailbox Database xxxxxxxx"
如果需要删除，首先需新建一个数据库，再将自带数据库中的系统邮箱(审批助理、Federation)、发现搜索邮箱迁移到新建数据库，才可删除。
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迁移发现搜索邮箱
查看发现搜索邮箱
Get-Mailbox -Filter {RecipientTypeDetails -eq "DiscoveryMailbox"} 获取邮箱名
建立迁移请求
New-MoveRequest -Identity "DiscoverySearchMailbox {XXXXX}" -TargetDatabase DBName
迁移完成删除请求
Get-MoveRequest -MoveStatus Completed | Remove-MoveRequest （也有可能是CompletedWithWarning）
验证
Get-Mailbox -Filter {RecipientTypeDetails -eq "DiscoveryMailbox"} | select Name,Database
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