208 lines
5.5 KiB
Markdown
208 lines
5.5 KiB
Markdown
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* * *
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- [1.开机自启](#1开机自启)
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* [1.配置Nginx开机自启](#1配置Nginx开机自启)
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* [2.配置v2ray_ws_tls开机自启](#2配置v2ray_ws_tls开机自启)
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* [3.测试开机自启是否成功](#3测试开机自启是否成功)
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- [2.开启Centos bbr拥塞控制算法[我的测试机是centos 7]](#27开启centos-bbr拥塞控制算法我的测试机是centos-7)
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* [1.检查是否安装bbr](#1检查是否安装bbr)
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* [2.yum更新](#2yum更新)
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* [3.查看系统版本](#3查看系统版本)
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* [4.安装elrepo并升级内核](#4安装elrepo并升级内核)
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* [5.更新grud文件并重启](#5更新grud文件并重启)
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* [6.开机后检查内容是否为4.9及以上版本](#6开机后检查内容是否为4.9及以上版本)
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* [7.开启bbr](#7开启bbr)
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* [8.验证bbr是否开启成功](#8验证bbr是否开启成功)
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+ [测试方法1](#测试方法1)
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+ [测试方法2](#测试方法2)
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* * *
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# 1.开机自启
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## 1.配置Nginx开机自启
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- 创建service文件
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```
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cd /etc/systemd/system&&touch nginxReboot.service
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```
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- 将下面内容复制到/etc/systemd/system/nginxReboot.service
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```
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[Unit]
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Description=nginx - high performance web server
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After=network.target remote-fs.target nss-lookup.target
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[Service]
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Type=forking
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PIDFile=/run/nginx.pid
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Environment=PATH=/root/.nvm/versions/node/v12.8.1/bin:/usr/bin/v2ray/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
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ExecStartPre=/usr/sbin/nginx -t -c /etc/nginx/nginx.conf
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ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf
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ExecReload=/usr/sbin/nginx -s reload
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ExecStop=/usr/sbin/nginx -s stop
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ExecQuit=/usr/sbin/nginx -s quit
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PrivateTmp=true
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[Install]
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WantedBy=multi-user.target
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```
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- 设置开机自启
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```
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sudo systemctl enable nginxReboot.service
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```
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- 可能出现的错误
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```
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# 可能会出现 (13: Permission denied) while connecting to upstream:[nginx]
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// 解决方法 执行下面的命令
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setsebool -P httpd_can_network_connect 1
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```
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## 2.配置v2ray_ws_tls开机自启
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- 创建service文件
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```
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cd /etc/systemd/system&&touch v2ray_ws_tls.service
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```
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- 将下面内容复制到/etc/systemd/system/v2ray_ws_tls.service
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```
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[Unit]
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Description=V2Ray WS TLS Service
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After=network.target
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Wants=network.target
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[Service]
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Type=simple
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PIDFile=/run/v2rayWSTLS.pid
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ExecStart=/usr/bin/v2ray/v2ray -config /root/config_ws_tls.json
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Restart=on-failure
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# Don't restart in the case of configuration error
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RestartPreventExitStatus=23
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[Install]
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WantedBy=multi-user.target
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```
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- 设置开机自启
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```
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sudo systemctl enable v2ray_ws_tls.service
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```
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## 3.测试开机自启是否成功
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- 重启vps
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```
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reboot
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```
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- 重启后查看程序是否正常启动
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```
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# 执行下方命令查看v2ray是否启动
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ps -ef|grep v2ray
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root 4533 1 0 03:03 ? 00:00:00 /usr/bin/v2ray/v2ray -config /root/config_ws_tls.json
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root 4560 1287 0 03:04 pts/0 00:00:00 grep --color=auto v2ray
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# 执行下方命令查看nginx是否启动，
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ps -ef|grep nginx
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``
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root 762 1 0 02:20 ? 00:00:00 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
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nginx 763 762 0 02:20 ? 00:00:00 nginx: worker process
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root 4562 1287 0 03:04 pts/0 00:00:00 grep --color=auto nginx
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```
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# 2.开启Centos bbr拥塞控制算法[我的测试机是centos 7]
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## 1.检查是否安装bbr
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- 有一些vps会自带bbr模块 比如搬瓦工的某些机器，执行下面命令
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```
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lsmod | grep bbr
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```
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- 如果输出类似内容则已经开启bbr 到这里就可以结束了
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```
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tcp_bbr 20480 28
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```
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## 2.yum更新
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```
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yum update
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```
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## 3.查看系统版本
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- 执行下面命令
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```
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cat /etc/redhat-release
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```
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- 如果release后面的数字大于7.3即可
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```
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CentOS Linux release 7.7.1908 (Core)
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```
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## 4.安装elrepo并升级内核
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- 分别依次执行下面命令
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```
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rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
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rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
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yum --enablerepo=elrepo-kernel install kernel-ml -y
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```
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- 正常情况下会输出下面内容
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```
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Transaction Summary
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================================================================================
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Install 1 Package
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Total download size: 39 M
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Installed size: 169 M
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Downloading packages:
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kernel-ml-4.9.0-1.el7.elrepo.x86_64.rpm | 39 MB 00:00
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Running transaction check
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Running transaction test
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Transaction test succeeded
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Running transaction
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Warning: RPMDB altered outside of yum.
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Installing : kernel-ml-4.9.0-1.el7.elrepo.x86_64 1/1
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Verifying : kernel-ml-4.9.0-1.el7.elrepo.x86_64 1/1
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Installed:
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kernel-ml.x86_64 0:4.9.0-1.el7.elrepo
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Complete!
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```
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## 5.更新grud文件并重启
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- 依次执行下面的命令，重启后需要等待数秒重新使用ssh连接
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```
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egrep ^menuentry /etc/grub2.cfg | cut -f 2 -d \'
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grub2-set-default 0
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reboot
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```
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## 6.开机后检查内容是否为4.9及以上版本
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- 执行下面的命令
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```
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uname -r
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```
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- 输出结果
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```
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5.3.7-1.el7.elrepo.x86_64
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```
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## 7.开启bbr
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- 执行下面的命令
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```
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vim /etc/sysctl.conf
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```
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- 添加如下内容
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```
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net.core.default_qdisc = fq
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net.ipv4.tcp_congestion_control = bbr
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```
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- 加载系统参数
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```
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sysctl -p
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```
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## 8.验证bbr是否开启成功
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### 测试方法1
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- 执行下面的命令
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```
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sysctl net.ipv4.tcp_available_congestion_control
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```
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- 输出下面内容即为成功
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```
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net.ipv4.tcp_available_congestion_control = bbr cubic reno
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```
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### 测试方法2
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- 执行下面的命令
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```
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lsmod | grep bbr
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```
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- 输出下面内容即为成功
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```
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tcp_bbr 20480 28
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```
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