https://www.inet.no/dante/

apt install dante-server

Можно использовать совместно с решением: Протокол автоматической настройки прокси (WPAD).

/etc/danted.conf

internal: eth0 port = 1080
external: ВНЕШНИЙ_IP
 
user.privileged: root
user.notprivileged: nobody
user.libwrap: nobody
 
#socksmethod: none
method: none
clientmethod: none
logoutput: /var/log/danted.log
connecttimeout: 60
 
client pass {
        from: 0.0.0.0/0 port 1-65535 to: 0.0.0.0/0
}
 
client block {
        from: 0.0.0.0/0 to: 0.0.0.0/0
        log: connect error
}
 
pass {
        from: 0.0.0.0/0 to: 0.0.0.0/0
        protocol: tcp udp
        log: connect error
}

/etc/danted.conf

internal: eth0 port = 1080
external: ВНЕШНИЙ_IP
 
user.privileged: root
user.notprivileged: nobody
user.libwrap: nobody
 
method: none
clientmethod: none
logoutput: /var/log/danted.log
timeout.connect: 60
 
client pass {
        from: 0.0.0.0/0 port 1-65535 to: 0.0.0.0/0
}
 
client block {
        from: 0.0.0.0/0 to: 0.0.0.0/0
        log: connect error
}
 
socks pass {
        from: 0.0.0.0/0 to: 0.0.0.0/0
        protocol: tcp udp
        log: connect error
}

http://wiki.kartbuilding.net/index.php/Dante_Socks_Server

Цинизм в IT: Установка Socks5 прокси сервера на Debian 4