Oracle

Oracle 服务器优化指南

Posted by liuxu379 on March 4, 2020
CATALOG

    配置 Root 账户登录

    image-20210830141111633

    创建服务器时选择 粘贴 cloud-init 脚本，默认密码为 password

    #!/bin/bash
echo root:password |sudo chpasswd root
sudo sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config;
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config;
sudo service sshd restart

    卸载无用程序

    systemctl stop rpcbind
systemctl stop rpcbind.socket
systemctl disable rpcbind
systemctl disable rpcbind.socket

systemctl stop oracle-cloud-agent
systemctl disable oracle-cloud-agent
systemctl stop oracle-cloud-agent-updater
systemctl disable oracle-cloud-agent-updater

    使用 BBR 加速

    更换内核

    yum -y update
wget https://raw.githubusercontent.com/chiakge/Linux-NetSpeed/master/bbrplus/centos/7/kernel-4.14.129-bbrplus.rpm
yum -y install kernel-4.14.129-bbrplus.rpm
grub2-mkconfig -o /boot/grub2/grub.cfg
grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
grub2-set-default 0
reboot

    开启 BBR & 优化

    运行脚本后，选择 7，再选择 10

    wget -N --no-check-certificate "https://raw.githubusercontent.com/chiakge/Linux-NetSpeed/master/tcp.sh" && chmod +x tcp.sh && ./tcp.sh

    配置科学上网

    服务端安装

    wget --no-check-certificate -O shadowsocks-all.sh https://raw.githubusercontent.com/teddysun/shadowsocks_install/master/shadowsocks-all.sh

chmod +x shadowsocks-all.sh

./shadowsocks-all.sh 2>&1 | tee shadowsocks-all.log

    客户端配置

    Download

    MacOS、Android、Windows、obfs

    ​

    客户端添加配置时，注意以下两栏内容：

    插件 ： obfs-local

    插件选项 ： obfs=http;obfs-host=item.taobao.com

    Windows 客户端需要下载 obfs 混淆插件，下载插件后，放入 Shadowsocks 根目录下。obfs-host 是待伪装的网站，可以自定义。

    image-20210114112025711