shadowsocks

安装配置

以下选择其中一个脚本即可

单用户一键安装脚本

wget -N --no-check-certificate https://raw.githubusercontent.com/ToyoDAdoubi/doubi/master/ssr.sh && chmod +x ssr.sh && bash ssr.sh

多用户一键安装脚本

wget -N --no-check-certificate https://raw.githubusercontent.com/ToyoDAdoubi/doubi/master/ssrmu.sh && chmod +x ssrmu.sh && bash ssrmu.sh

配置加速

bbr 加速

安装执行该脚本

wget --no-check-certificate https://github.com/teddysun/across/raw/master/bbr.sh && bash ./bbr.sh

锐速

更换内核

wget --no-check-certificate https://blog.asuhu.com/sh/ruisu.sh && bash ruisu.sh

安装锐速

wget -N --no-check-certificate https://raw.githubusercontent.com/91yun/serverspeeder/master/serverspeeder-all.sh && bash serverspeeder-all.sh

高级配置 (可选)

Increase the maximum number of open file descriptors

vi /etc/security/limits.conf

Add these two lines

* soft nofile 51200
* hard nofile 51200

Then

ulimit -n 51200

Tune the kernel parameters

The priciples of tuning parameters for shadowsocks are

Reuse ports and conections as soon as possible.
Enlarge the queues and buffers as large as possible.
Choose the TCP congestion algorithm for large latency and high throughput.
Here is an example /etc/sysctl.conf of our production servers:

fs.file-max = 51200
net.core.rmem_max = 67108864
net.core.wmem_max = 67108864
net.core.netdev_max_backlog = 250000
net.core.somaxconn = 4096

net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.ip_local_port_range = 10000 65000
net.ipv4.tcp_max_syn_backlog = 8192
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_fastopen = 3
net.ipv4.tcp_mem = 25600 51200 102400
net.ipv4.tcp_rmem = 4096 87380 67108864
net.ipv4.tcp_wmem = 4096 65536 67108864
net.ipv4.tcp_mtu_probing = 1
net.ipv4.tcp_congestion_control = hybla

Of course, remember to execute sysctl -p to reload the config at runtime.

References

shadowsocks