# Linux sync connected to server but can't access files
**URL:** https://forum.pydio.com/t/linux-sync-connected-to-server-but-cant-access-files/6490
**Category:** Sync Client
**Tags:** linux
**Created:** [January 28, 2025, 10:44pm UTC](https://forum.pydio.com/t/linux-sync-connected-to-server-but-cant-access-files/6490 "2025-01-28T22:44:50Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@4ctiv](https://forum.pydio.com/u/4ctiv)
#### Post date: [January 28, 2025, 10:44pm UTC](https://forum.pydio.com/t/linux-sync-connected-to-server-but-cant-access-files/6490/1 "2025-01-28T22:44:50Z")
Hello,
It looks like my problem is quite simmilar to post 2161and post 4429 (sadly can not link them here, sync-client\>linux)
I am using the linux **cells-sync** (0.9.4),
my **pydio cells** (4.4.9) is hosted via docker and accessed via a cloudflare tunnel (8050 |-\> 443 on example.url).
> What **works** :
>
> - Android Sync client
> - ~~Windows Sync client~~
> - Linux sync client: Connecting to server (login)
What is **broken** :
- Linux sync client create sync task fails
- “authorization error 403 : unexpected HTTP status code” is displayed when opening remote folder view.
[2025-01-28\_pydio\_403.png - Google Drive](https://drive.google.com/file/d/1oGmFo3G7IXLrXaCBQj1cCPvwcheKblaN/view?usp=drive_link)
My docker setup:
```yaml
services:
pydio:
image: lscr.io/linuxserver/pydio-cells
restart: unless-stopped
environment:
- PUID=1000
- PGID=1000
- TZ=Europe/Berlin
- SERVER_IP=https://example.url # Same as externalurl to fix linux sync client connect
- EXTERNALURL=https://example.url:443
- FILE__MYVAR=./.env
# - CELLS_GRPC_EXTERNAL=8080
# - CELLS_SITE_NO_TLS=1
networks:
- default
- cloudflare
- pydio-internal
ports:
- "8050:8080" # https frontend
- "8051:33060" # gRpc
links:
- "db"
depends_on:
- "db"
volumes: # https://forum.pydio.com/t/cannot-add-storages-in-pydio-cells/4000
-
db:
...
networks:
pydio-internal:
internal: true
cloudflare:
external: true # Cloudflare proxy
```
```auto
$ cat sync.log | tail -n 20
2025-01-28T23:32:26.730+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (4.999930 failures of 5.000000), restarting: true, error: "{%!s(*control.StdInner=&{0xc00083e240}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
2025-01-28T23:32:26.730+0100 INFO scanner Use 'quit' or Ctrl+C to exit, type 'resync', 'dry', 'loop' to control syncs, 'pause' or 'resume'
2025-01-28T23:32:26.730+0100 INFO supervisor Entering the backoff state.
2025-01-28T23:32:26.730+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (5.999895 failures of 5.000000), restarting: false, error: "{%!s(*control.StdInner=&{0xc0008727e0}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
2025-01-28T22:39:56.015+0100 INFO update.service Starting Updater Service
2025-01-28T23:32:33.038+0100 ERROR systray http://localhost:3636/static/js/main.3fb97077.chunk.js? __WB_REVISION__ =8fb4a698405c9655fc00:1:142766: CONSOLE LOG [object Object]
2025-01-28T23:32:45.503+0100 INFO supervisor Exiting backoff state.
2025-01-28T23:32:45.503+0100 INFO scanner Use 'quit' or Ctrl+C to exit, type 'resync', 'dry', 'loop' to control syncs, 'pause' or 'resume'
2025-01-28T23:32:45.504+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (1.000000 failures of 5.000000), restarting: true, error: "{%!s(*control.StdInner=&{0xc0005c2750}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
2025-01-28T23:32:45.504+0100 INFO scanner Use 'quit' or Ctrl+C to exit, type 'resync', 'dry', 'loop' to control syncs, 'pause' or 'resume'
2025-01-28T23:32:45.504+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (1.999993 failures of 5.000000), restarting: true, error: "{%!s(*control.StdInner=&{0xc0008728a0}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
2025-01-28T23:32:45.504+0100 INFO scanner Use 'quit' or Ctrl+C to exit, type 'resync', 'dry', 'loop' to control syncs, 'pause' or 'resume'
2025-01-28T23:32:45.504+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (2.999981 failures of 5.000000), restarting: true, error: "{%!s(*control.StdInner=&{0xc00083e300}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
2025-01-28T23:32:45.504+0100 INFO scanner Use 'quit' or Ctrl+C to exit, type 'resync', 'dry', 'loop' to control syncs, 'pause' or 'resume'
2025-01-28T23:32:45.505+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (3.999960 failures of 5.000000), restarting: true, error: "{%!s(*control.StdInner=&{0xc0005c2810}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
2025-01-28T23:32:45.505+0100 INFO scanner Use 'quit' or Ctrl+C to exit, type 'resync', 'dry', 'loop' to control syncs, 'pause' or 'resume'
2025-01-28T23:32:45.505+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (4.999935 failures of 5.000000), restarting: true, error: "{%!s(*control.StdInner=&{0xc00083e3c0}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
2025-01-28T23:32:45.505+0100 INFO scanner Use 'quit' or Ctrl+C to exit, type 'resync', 'dry', 'loop' to control syncs, 'pause' or 'resume'
2025-01-28T23:32:45.505+0100 INFO supervisor Entering the backoff state.
2025-01-28T23:32:45.505+0100 INFO supervisor cells-sync: Failed service '&control.StdInner{ctx:context.Context(nil)}' (5.999916 failures of 5.000000), restarting: false, error: "{%!s(*control.StdInner=&{0xc000872960}) &control.StdInner{ctx:context.Context(nil)}} returned unexpectedly", stacktrace: [unknown stack trace]
```
> Server logs display error (don’t know if that is related):
> [2025-01-28\_pydio\_403\_server.png - Google Drive](https://drive.google.com/file/d/18ct_8mUx5TGTGeBc7G0j81Ma5-tRZn4h/view?usp=sharing)
My first time here, hope I described everything ok’ish.
I added the images as google drive links as I can not (yet) post images.
Greetings, L.
---
### Author:  [@4ctiv](https://forum.pydio.com/u/4ctiv)
#### Post date: [January 29, 2025, 5:21pm UTC](https://forum.pydio.com/t/linux-sync-connected-to-server-but-cant-access-files/6490/2 "2025-01-29T17:21:16Z")
Hi, me again.
So I really tried to get this to work today and stumbled across [post 5943](https://forum.pydio.com/t/how-to-configure-pydio-cloudflare-tunnel-to-support-cellssync/5943/2)
This is working for me after I had regenerated my local certificat.
I also specified a way to host pydio as http, you would need to add a second entry in cloudflare using http2 on your grpc port for pydio sync. Though using tls works for me so I would recommend using that.
> Cloudflare (see above post):
>
> - Enabled gRPC:
> - Dashboard/Domain/Network/gRPC |-\> On
>
> - Enable HTTP2,NoTLSVerify:
> - Dashboard/Zero Trust/Networks/Tunnels/Configure/Public Hostname/Edit/Create/Additional app settings/TLS |-\> On (required type: https)
> Local/Docker:
>
> - Allow port (tcp) via firewall
> - Docker:
> - Add `--protocol http2` to cloudflare
> - using docker compose: cloudflare-tunnel-service \> `command: tunnel run --protocol http2 ...`
My working compose file:
```yaml
services:
cloudflare-tunnel:
container_name: cloudflare-tunnel
image: cloudflare/cloudflared:latest
restart: unless-stopped
command: tunnel run --protocol http2
env_file:
# env requires: `TUNNEL_TOKEN=...` (also make this `chmod 600`)
- ./envionment.env
networks:
- default
- cloudflare
services:
pydio:
image: lscr.io/linuxserver/pydio-cells:latest
hostname: pydio
container_name: pydio
restart: unless-stopped
environment:
# Linuxserver docs: https://docs.linuxserver.io/images/docker-pydio-cells/#docker-cli-click-here-for-more-info
- PUID=1000
- PGID=1000
# - TZ=Europe/Berlin
- SERVER_IP=0.0.0.0:8080
- EXTERNALURL=https://cloudflare.domain
- CELLS_LOG_DIR=/config/log
- CELLS_WORKING_DIR=/config
- CELLS_DATA=/config/data
# Uncomment following env and grpc port to use http (no TLS)
# - CELLS_BIND=0.0.0.0:8080
# - CELLS_EXTERNAL=https://cloudflare.domain
# - CELLS_NO_SSL=1
# - CELLS_GRPC_EXTERNAL=50051
networks:
- cloudflare
- pydio
ports:
- "8080:8080" # http (frontend)
# - "50051:50051" # gRPC, cloudflare fix: https://forum.pydio.com/t/how-to-configure-pydio-cloudflare-tunnel-to-support-cellssync/5943/2
depends_on:
- "db"
volumes:
# fix storage issues: https://forum.pydio.com/t/cannot-add-storages-in-pydio-cells/4000
- ${PYDIO_ROOT}:/config
- ${PYDIO_DATA}:/config/data
- ${PYDIO_SHARED}:/config/shared-media:z # Shared media => use "existing data import"
deploy:
resources:
limits:
cpus: '2.0' # max 100% on 2 cores
memory: 2G
mysql:
image: mysql:latest
hostname: pydio-db
container_name: pydio-db
restart: unless-stopped
environment:
MYSQL_ROOT_PASSWORD: ${MSQL_PWD}
MYSQL_DATABASE: ${PYDIO_DB}
MYSQL_USER: ${PYDIO_DB_USR}
MYSQL_PASSWORD: ${PYDIO_DB_PWD}
command: [mysqld, --character-set-server=utf8mb4, --collation-server=utf8mb4_unicode_ci]
volumes:
- ${MYSQL_DATA}:/var/lib/mysql
networks:
- pydio
networks:
cloudflare:
name: cloudflare
internal: true
pydio:
name: pydio
internal: true
```
Note: When I had cert issues, I regenerated the config after deleting `config/certs`, then restart the docker container.
```bash
$ docker exec -it --user=1000 pydio bash
1000@pydio:/# cells configure sites
The following sites are currently defined:
+---+----------------------+-------------+------------------------+
| # | BIND(S) | TLS | EXTERNAL URL |
+---+----------------------+-------------+------------------------+
| 0 | https://0.0.0.0:8080 | Self-signed | https://cloudflare.dom |
+---+----------------------+-------------+------------------------+
> Quit
```