波少散记

今天遇到一个问题：每次ubuntu12.04重启后，/etc/resolv.conf被重写为空或127.0.0.1 经过网上查资料以及本人验证，一下方法是可行的： 1.编辑/etc/resolvconf/resolv.conf.d/tail （如果没有该文件，则建立一个文件名为tail的文本文件即可） 2.在里面添加：nameserver xxx.xxx.xxx.xxx xxx替换为你要的实际dns地址（我设置的是192.168.1.1） 这样每次重启后，它会将你所编辑添加的dns服务器写入/etc/resolv.conf中 使resolv.conf不至于每次都重置成空白或只剩127.0.0.1。  

 安装mysql5.7备份出现上面报错 需要给账号权限 GRANT PROCESS ON *.* TO '数据库用户'@'localhost'; flush privileges;

ERROR: The certificate of `url' is not trusted. ERROR: The certificate of `url' hasn't got a known issuer. If you are using Debian or Ubuntu, install the ca-certificates package: $ sudo apt-get install ca-certificates If you don't care about checking the validity of the certificate, use the --no-check-certificate option: $ wget --no-check-certificate https://download/url Note: The second option is not recommended because of the possibility of a man-in-the-middle attack.