Transmission

Issue: Transmission Remote GUI 403 Forbidden

Package: transmission-daemon
Version: 2.94-2+deb10u1

find / -xdev -name settings.json -exec ls -l {} \;

-rw-rw---- 1 debian-transmission debian-transmission 2407 Sep  2  2020 /etc/transmission-daemon/settings.json
-rw------- 1 debian-transmission debian-transmission 2249 Apr 14 11:23 /home/debian-transmission/.config/transmission-daemon/settings.json
lrwxrwxrwx 1 root root 38 Jul 16  2020 /var/lib/transmission-daemon/.config/transmission-daemon/settings.json -> /etc/transmission-daemon/settings.json

Symptom

Settings from /etc/transmission-daemon/settings.json don't using

grep '"rpc-whitelist"' /etc/transmission-daemon/settings.json /home/debian-transmission/.config/transmission-daemon/settings.json

/etc/transmission-daemon/settings.json:    "rpc-whitelist": "127.0.0.1,192.168.*.*",
/home/debian-transmission/.config/transmission-daemon/settings.json:    "rpc-whitelist": "127.0.0.1",

journalctl -u transmission-daemon.service -f

Oct 30 17:11:14 srv.domain.com transmission-daemon[312]: [2020-10-30 17:11:14.566] Using settings from "/home/debian-transmission/.config/transmission-daemon" (daemon.c:528)
Oct 30 17:11:14 srv.domain.com transmission-daemon[312]: [2020-10-30 17:11:14.566] Saved "/home/debian-transmission/.config/transmission-daemon/settings.json" (variant.c:1271)

Solution

https://github.com/transmission/transmission/blob/main/docs/Editing-Configuration-Files.md

Make changes in /home/debian-transmission/.config/transmission-daemon/settings.json, when service is active and reload it.

# Make changes
vim /home/debian-transmission/.config/transmission-daemon/settings.json 

# reload and restart 
systemctl reload transmission-daemon
systemctl restart transmission-daemon

# Checking 
# grep whitelist /home/debian-transmission/.config/transmission-daemon/settings.json
    "rpc-host-whitelist": "",
    "rpc-host-whitelist-enabled": true,
    "rpc-whitelist": "127.0.0.1,192.168.*.*",
    "rpc-whitelist-enabled": true,
#  Testing 
curl -I 192.168.1.11:9091

HTTP/1.1 301 Moved Permanently
Server: Transmission
Location: /transmission/web/
Date: Fri, 30 Oct 2020 15:44:41 GMT

Issue: umask

umask Get current value for active process:

# grep -i umask /proc/721/status
Umask:  0022

grep umask /home/debian-transmission/.config/transmission-daemon/settings.json
    "umask": 18,

Convert decimal value to octet for checking

echo 'obase=8; 18' | bc
22

Set value 2 to get "002":

sed -i 's/"umask".*/"umask": 2,/g' /home/debian-transmission/.config/transmission-daemon/settings.json

Reload service

systemctl reload transmission-daemon
systemctl restart transmission-daemon

Checking result for new process `bash grep -i umask /proc/8777/status Umask: 0002