Does DSM have a /etc/sysctl.d directory?

Synology
1

Hello,

Am setting up subnet routing via Tailscale on a NAS. The instructions say

  1. your Linux system has a /etc/sysctl.d directory, use:
echo 'net.ipv4.ip_forward = 1' | sudo tee -a /etc/sysctl.d/99-tailscale.conf
echo 'net.ipv6.conf.all.forwarding = 1' | sudo tee -a /etc/sysctl.d/99-tailscale.conf
sudo sysctl -p /etc/sysctl.d/99-tailscale.conf

Otherwise, use:

echo 'net.ipv4.ip_forward = 1' | sudo tee -a /etc/sysctl.conf
echo 'net.ipv6.conf.all.forwarding = 1' | sudo tee -a /etc/sysctl.conf
sudo sysctl -p /etc/sysctl.conf

Could someone please advise me if the upper command is appropriate or the lower on Synology?

Thank you