Cannot connect to server from ios

I've downloaded bedrock server for linux. Installed it on debian linux, opened the ports, and run the server according to the instructions.

I can connect from a bedrock client running on win10, but not from ios?

Is IOS supported?

How can I further debug this issue.

 

NO LOG FILE! - Failed to up file descriptor limit Operation not permitted
NO LOG FILE! - setting up server logging...
[2020-07-13 20:28:24 INFO] Starting Server
[2020-07-13 20:28:24 INFO] Version 1.16.1.2
[2020-07-13 20:28:24 INFO] Session ID 1ce623d7-df70-46c0-bd8f-1df88d2fa0f4
[2020-07-13 20:28:24 INFO] Level Name: Bedrock level
[2020-07-13 20:28:24 INFO] Game mode: 0 Survival
[2020-07-13 20:28:24 INFO] Difficulty: 1 EASY
[2020-07-13 20:28:24 INFO] opening worlds/Bedrock level/db
[2020-07-13 20:28:26 INFO] IPv4 supported, port: 19132
[2020-07-13 20:28:26 INFO] IPv6 supported, port: 19133
[2020-07-13 20:28:26 INFO] IPv4 supported, port: 42788
[2020-07-13 20:28:26 INFO] IPv6 supported, port: 57325
[2020-07-13 20:28:27 INFO] Server started.
[2020-07-13 20:45:36 INFO] Player connected: verdigris, xuid: 2533274870819227
[2020-07-13 20:45:56 INFO] Player disconnected: verdigris, xuid: 2533274870819227