• Self-hosted ShadowSocks often fails to utilize full bandwidth, resulting in slow downloads for large files
• Having multiple shadowsocks servers but only using one wastes resources

HAProxy provides a solution for these scenarios

Installing HAProxy (Fedora as example)

sudo dnf install haproxy

Configuring HAProxy

1. Enter configuration directory

ls /etc/haproxy/

2. Backup configuration file (optional)

sudo cp haproxy.cfg haproxy.cfg.bak

3. Edit configuration file (/etc/haproxy)

defaults
    mode tcp
    option dontlognull
    timeout connect 10s
    timeout client 1m
    timeout server 1m

#---------------------------------------------------------------------

frontend shadowsocks-in
    bind *:8388
    default_backend shadowsocks-out

#---------------------------------------------------------------------

backend shadowsocks-out
    balance roundrobin
    server server1_name 104.224.152.169:2000
    server server2_name 67.218.134.185:2000
    # replace with your own IPs and ports

Modify ShadowSocks password

ShadowSocks servers behind HAProxy must use the same password

Configure ShadowSocks client

• IP address: Set to 127.0.0.1
• Port: HAProxy’s port

Enable auto-start on boot

sudo setsebool -P haproxy_connect_any=1
sudo systemctl enable haproxy

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