setup aria2 on ubuntu

install aria2

$ apt update
$ apt install aria2

config aria2

dir=/media/sda-ext/download


continue=true
disable-ipv6=true

enable-rpc=true
rpc-listen-all=true
rpc-listen-port=9800
rpc-secret=admin
rpc-allow-origin-all=true

max-concurrent-downloads=5
max-connection-per-server=16

add aria2 service

[Unit]
Description=Aria2, Download Manager
After=network.target

[Service]
Type=simple
Restart=always
ExecStart=/usr/bin/aria2c --conf-path=/root/aria2/aria2.conf

[Install]
WantedBy=multi-user.target

$ systemctl start aria2
$ systemctl enable aria2