vps install ss

1.install ss

yum install python-setuptools
easy_install pip
pip install shadowsocks

2.config ss (single user)

vim /etc/shadowsocks.json

{
    "server":"my-server",
    "server_port":8338,
    "local_port":8888,
    "password":"password0",
    "timeout":600,
    "method":"aes-256-cfb",
    "auth": true,
    "fast_open"：true
}

server:hostname or ip
fast_open：true for Linux core 3.7+

3.optimize ss

vim /etc/security/limits.conf

add 2 line

* soft nofile 51200
* hard nofile 51200

bash

ulimit -n 51200

4.start ss

vim /usr/lib/systemd/system/ss.service

[Unit]
Description=Shadowsocks Server
After=network.target

[Service]
PermissionsStartOnly=true
ExecStartPre=/bin/mkdir -p /run/shadowsocks
ExecStartPre=/bin/chown nobody:nobody /run/shadowsocks
ExecStart=/usr/bin/ssserver -c /etc/shadowsocks.json
Restart=on-abort
User=nobody
Group=nobody
UMask=0027

[Install]
WantedBy=multi-user.target

systemctl start ss

systemctl enable ss

5.firewall

firewall-cmd --zone=public --add-port=8388/tcp --permanent

firewall-cmd --zone=public --add-port=8388/udp --permanent

firewall-cmd --reload

reference:https://blog.csdn.net/finishx/article/details/79039362