How to Set up ss (single-user and multi-user) on a VPS server )?, Vpsss

How to Set up ss (single-user and multi-user) on a VPS server )?, Vpsss

My environment is CentOS6. The commands of the CentOS7 firewall are different from those of CentOS6.

Install shadowsocks

yum updatewget --no-check-certificate https://raw.githubusercontent.com/teddysun/shadowsocks_install/master/shadowsocks.shchmod +x shadowsocks.sh./shadowsocks.sh 2>&1 | tee shadowsocks.log

Configure the password, port, and encryption method as prompted. Refer to the figure below:

Configuration File

View the configuration file:

cat /etc/shadowsocks.json

1. Single User

The default configuration information is for a single user.

 {    "server":"0.0.0.0",    "server_port":443,    "local_address":"127.0.0.1",    "local_port":1080,    "password":"aabbcc",    "timeout":300,    "method":"aes-256-cfb",    "fast_open":false}

1. Multiple users

{    "server":"0.0.0.0",    "local_address":"127.0.0.1",    "local_port":1080,    "port_password":{         "443":"pwd000",         "9001":"pwd123",         "9002":"pwd234",         "9003":"pwd345",         "9004":"pwd456"                        },    "timeout":300,    "method":"aes-256-cfb",    "fast_open": false}

After the configuration file is modified

/Etc/init. d/shadowsocks restart or service shadowsocks restart

Start:/etc/init. d/shadowsocks start

Stop:/etc/init. d/shadowsocks stop

Restart:/etc/init. d/shadowsocks restart

Status:/etc/init. d/shadowsocks status

If a multi-user configuration file is configured, some ports cannot access Google.

Open cmd to check whether the port can be connected.

Telnet ip Port

If the connection fails, open the firewall configuration file to check whether the port is opened.

cat /etc/sysconfig/iptables

If not, open the firewall port.

Edit the iptables configuration file

vi /etc/sysconfig/iptables

Add rule-a input-p tcp-m tcp -- dport port number-j ACCEPT

Add the following code to the configuration file. # Open port 9001-a input-p tcp-m tcp -- dport 9001-j ACCEPT # Open all ports between 9001-9009-a input-p tcp-m tcp -- dport 9001: 9009-j ACCEPT

Note: the rule to be added must be added to any position on the code line of the REJECT. It cannot be added to the following line of the Code; otherwise, the rule will not take effect:

Restart Firewall

Service iptables restart or/etc/init. d/iptables restart

OK. The access connection is successful.