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doc/TOR.md: Add missing instructions to add user to Tor group.

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Fixes: #4208
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ZmnSCPxj jxPCSnmZ 2020-11-19 09:15:53 +08:00 committed by neil saitug
parent e4cd5eac28
commit ff090ecfe6
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@ -69,6 +69,54 @@ Uncomment those in, then restart `tor` (usually `systemctl restart tor` or
Debian and Ubuntu, or just restart the entire computer if you cannot figure
it out).
On some systems (such as Arch Linux), you may also need to add the following
setting:
```
DataDirectoryGroupReadable 1
```
You also need to make your user a member of the Tor group.
"Your user" here is whatever user will run `lightningd`.
On Debian-derived systems, the Tor group will most likely be `debian-tor`.
You can try listing all groups with the below command, and check for a
`debian-tor` or `tor` groupname.
```
getent group | cut -d: -f1 | sort
```
Alternately, you could check the group of the cookie file directly.
Usually, on most Linux systems, that would be `/run/tor/control.authcookie`:
```
stat -c '%G' /run/tor/control.authcookie
```
Once you have determined the `${TORGROUP}` and selected the
`${LIGHTNINGUSER}` that will run `lightningd`, run this as root:
```
usermod -a -G ${TORGROUP} ${LIGHTNINGUSER}
```
Then restart the computer (logging out and logging in again should also
work).
Confirm that `${LIGHTNINGUSER}` is in `${TORGROUP}` by running the
`groups` command as `${LIGHTNINGUSER}` and checking `${TORGROUP}` is listed.
If the `/run/tor/control.authcookie` exists in your system, then log in as
the user that will run `lightningd` and check this command:
```
cat /run/tor/control.authcookie > /dev/null
```
If the above prints nothing and returns, then C-Lightning "should" work
with your Tor.
If it prints an error, some configuration problem will likely prevent
C-Lightning from working with your Tor.
Then make sure these are in your `${LIGHTNING_DIR}/config` or other C-Lightning configuration
(or prepend `--` to each of them and add them to your `lightningd` invocation
command line):