甲骨文

甲骨文

cokan

2022 年 05 月 16 日

21 次浏览

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默认分类

登陆之后的操作

切换到root角色

sudo -i

1、安装相关依赖
Ubuntu：

apt-get install wget
apt-get update -y && apt-get install curl -y

2、设置root密码
passwd # 修改密码

3、开启SSH登陆

sudo -i

vi /etc/ssh/sshd_config

PermitRootLogin yes
PasswordAuthentication yes
sudo service sshd restart

Ubuntu系统

开放所有端口

iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
iptables -F

Ubuntu镜像默认设置了Iptable规则，关闭它，

apt-get purge netfilter-persistent
reboot
### 安装需要依赖
sudo apt update -y && apt-get install -y wget && apt-get install -y jq && apt-get install -y curl
### 安装docker
- docker
curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
- docker-compose
VERSION=$(curl --silent https://api.github.com/repos/docker/compose/releases/latest | jq .name -r)
DESTINATION=/usr/local/bin/docker-compose
sudo curl -L https://github.com/docker/compose/releases/download/${VERSION}/docker-compose-$(uname -s)-$(uname -m) -o $DESTINATION
sudo chmod 755 $DESTINATION

设置SWAP可以用脚本:

注意：如果VPS的内存比较小，推荐设置一下SWAP，一般为内存的1-1.5倍即可～
2048(单位MB)

wget https://www.moerats.com/usr/shell/swap.sh && bash swap.sh

开启 TCP BBR

修改系统变量：

echo net.core.default_qdisc=fq >> /etc/sysctl.conf
echo net.ipv4.tcp_congestion_control=bbr >> /etc/sysctl.conf
保存
sysctl -p
运行
sysctl net.ipv4.tcp_available_congestion_control
无效

测速图

----------------------------------------------------------------------
 Superbench.sh -- https://www.oldking.net/350.html
 Mode  : Standard    Version : 1.1.7
 Usage : wget -qO- sb.oldking.net | bash
----------------------------------------------------------------------
 CPU Model            : AMD EPYC 7551 32-Core Processor
 CPU Cores            : 2 Cores 1996.245 MHz x86_64
 CPU Cache            : 512 KB
 OS                   : Ubuntu 20.04.4 LTS (64 Bit) KVM
 Kernel               : 5.13.0-1027-oracle
 Total Space          : 2.2 GB / 49.5 GB
 Total RAM            : 163 MB / 966 MB (641 MB Buff)
 Total SWAP           : 0 MB / 0 MB
 Uptime               : 0 days 0 hour 16 min
 Load Average         : 0.31, 0.08, 0.04
 TCP CC               : cubic
 ASN & ISP            : AS31898, Oracle Corporation
 Organization         : Oracle Cloud Infrastructure (ap-chuncheon-1)
 Location             : Chuncheon, South Korea / KR
 Region               : Gangwon-do
----------------------------------------------------------------------
 I/O Speed( 1.0GB )   : 52.0 MB/s
 I/O Speed( 1.0GB )   : 51.4 MB/s
 I/O Speed( 1.0GB )   : 51.2 MB/s
 Average I/O Speed    : 51.5 MB/s
----------------------------------------------------------------------
 Node Name        Upload Speed      Download Speed      Latency
 Speedtest.net    480.97 Mbit/s     385.07 Mbit/s       6.35 ms
 Fast.com         0.00 Mbit/s       162.5 Mbit/s        -
 Nanjing 5G   CT  207.68 Mbit/s     422.60 Mbit/s       121.33 ms
 Hefei 5G     CT  93.73 Mbit/s      402.16 Mbit/s       133.36 ms
 Guangzhou 5G CT  3.29 Mbit/s       265.40 Mbit/s       105.88 ms
 Shanghai 5G  CU  484.86 Mbit/s     201.64 Mbit/s       42.38 ms
 Wuxi 5G      CM  154.10 Mbit/s     364.48 Mbit/s       112.18 ms
 Nanjing 5G   CM  303.13 Mbit/s     415.78 Mbit/s       107.88 ms
 Hefei 5G     CM  461.26 Mbit/s     280.28 Mbit/s       94.20 ms
----------------------------------------------------------------------
 Finished in  : 5 min 30 sec
 Timestamp    : 2022-05-16 18:40:04 GMT+8
 Results      : ./superbench.log
----------------------------------------------------------------------
 Share result:
 · https://www.speedtest.net/result/c/262e157b-b473-4b1b-be59-261097c4c947
 · https://paste.ubuntu.com/p/548pQ8tNhT/
----------------------------------------------------------------------

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