kill -9 `ps -ef|grep "zhaobiao"|grep -v "grep"|awk '{print $2} '`
centos 安装 mysql管理工具：mycli
$ sudo yum install python-pip python-devel
$ sudo pip install mycli
修改 yum 源为 阿里源
$ cd /etc/yum.repos.d
$ mv CentOS-Base.repo CentOS-Base.repo.bak
$ wget -O CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
$ wget -O /epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
$ yum clean all
$ yum makecache
$ yum update
服务端创建可sudo用户，并且免密码
ssh user@ssh-server
useradd -d /home/superwen -m superwen
passwd superwen
echo "superwen ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/superwen
chmod 0440 /etc/sudoers.d/superwen
客户端允许无密码 SSH 登录，创建key
ssh-keygen -t rsa -C "[email protected]"
ssh-copy-id superwen@ssh-server
升级内核版本
$ rpm -import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
$ rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
$ yum -y --enablerepo=elrepo-kernel install kernel-ml
$ vim /etc/default/grub
GRUB_DEFAULT=0
$ grub2-mkconfig -o /boot/grub2/grub.cfg
//验证
$ grub2-editenv list
// 重启
$ shutdown -r now
// 重启后查看内核版本是不是4.11
$ uname -r
如果出现 Loaded plugins: fastestmirror Please use /usr/bin/yum --help 错误
$ vi /etc/yum/pluginconf.d/fastestmirror.conf
enabled=0 //把1改为0
$ vi /etc/yum.conf
plugins=0 #将plugins的值1修改为0
$ yum clean all
wget https://git.kernel.org/torvalds/t/linux-4.12-rc5.tar.gz --no-check-certificate tar –xvf linux-4.12-rc5.tar.gz cd linux-4.12 yum install hmaccalc zlib-develbinutils-devel elfutils-libelf-devel
// yum-config-manager --enable epel-testing // yum-config-manager --disable epel-testing // yum update --enablerepo=epel-testing // yum install --enablerepo=epel-testing // yum install epel-release
yum makecache fast