Can I use Orport 443 for my Tor Relay?

[agnusdei]

Hello,
Instead of 9001 ?
I saw on the Tor FAQ that 443 was better (9001 being too blocked)

For Tor Exit Node

Thanks

[NTH]

Hi,

The port doesn’t matter (much) for a Tor exit relay. 9001 is fine for a exit relay unless your AS/network provider blocks this port. For guard relays in general it’s best to use often used encrypted ports such as 443.

Cheers,

tornth

[agnusdei]

Hi, thanks for the response.
So I can keep 443 ? it doesn’t change anything anyway?

Two more questions if I may:

• I put a Reverse DNS on the panel of my host, do I need to change anything on the server itself?

• Do I need to restart the Linux server after installing NTP?

Thanks

[NTH]

Yup, you can use 443 perfectly well. Do note that this will make it impossible to also run a website with TLS on the same IP address though. But most exit relay operators run their Tor notice website pages on port 80 anyway.

Other answers:

• Nope. Make sure you have the DNS A record set before you set the PTR record. It also helps to use the same name as the FQDN/hostname.
• Nope. But you will need to start and enable (so it starts at boot) the NTP service. And also restart it after every configuration change to NTP (which shouldn’t happen often). I don’t use Linux myself, but if you use systemd then I think these should work (if nothing changed in the past years):

# start at boot
systemctl enable ntpd
# start
systemctl start ntpd
# restart
systemctl restart ntpd
# enable and start in one command
systemctl enable --now ntpd

Just replace ntpd with whatever ntp daemon you use (OpenNTPD, Chrony etc.). There should be many online guides for configuring NTP on Linux based distros.