Error hosting server with a dedicated server linux build

Unity Engine
1

I created a server project and generated a dedicated server linux build. However, when I run it on a linux machine I get the following errors, and the client can’t connect to the server even though I checked that port forwarding was done correctly. Anyone know how to fix this so that the unity app can actually start on linux properly?

billgan12345@server:~/Builds$ ./server.x86_64
[UnityMemory] Configuration Parameters - Can be set up in boot.config
    "memorysetup-bucket-allocator-granularity=16"
    "memorysetup-bucket-allocator-bucket-count=8"
    "memorysetup-bucket-allocator-block-size=4194304"
    "memorysetup-bucket-allocator-block-count=1"
    "memorysetup-main-allocator-block-size=16777216"
    "memorysetup-thread-allocator-block-size=16777216"
    "memorysetup-gfx-main-allocator-block-size=16777216"
    "memorysetup-gfx-thread-allocator-block-size=16777216"
    "memorysetup-cache-allocator-block-size=4194304"
    "memorysetup-typetree-allocator-block-size=2097152"
    "memorysetup-profiler-bucket-allocator-granularity=16"
    "memorysetup-profiler-bucket-allocator-bucket-count=8"
    "memorysetup-profiler-bucket-allocator-block-size=4194304"
    "memorysetup-profiler-bucket-allocator-block-count=1"
    "memorysetup-profiler-allocator-block-size=16777216"
    "memorysetup-profiler-editor-allocator-block-size=1048576"
    "memorysetup-temp-allocator-size-main=4194304"
    "memorysetup-job-temp-allocator-block-size=2097152"
    "memorysetup-job-temp-allocator-block-size-background=1048576"
    "memorysetup-job-temp-allocator-reduction-small-platforms=262144"
    "memorysetup-temp-allocator-size-background-worker=32768"
    "memorysetup-temp-allocator-size-job-worker=262144"
    "memorysetup-temp-allocator-size-preload-manager=262144"
    "memorysetup-temp-allocator-size-nav-mesh-worker=65536"
    "memorysetup-temp-allocator-size-audio-worker=65536"
    "memorysetup-temp-allocator-size-cloud-worker=32768"
    "memorysetup-temp-allocator-size-gfx=262144"
Mono path[0] = '/home/billgan12345/Builds/server_Data/Managed'
Mono config path = '/home/billgan12345/Builds/server_Data/MonoBleedingEdge/etc'
Preloaded 'lib_burst_generated.so'
Initialize engine version: 2021.3.4f1 (cb45f9cae8b7)
[Subsystems] Discovering subsystems at path /home/billgan12345/Builds/server_Data/UnitySubsystems
Forcing GfxDevice: Null
GfxDevice: creating device client; threaded=0; jobified=0
NullGfxDevice:
    Version:  NULL 1.0 [1.0]
    Renderer: Null Device
    Vendor:   Unity Technologies
Begin MonoManager ReloadAssembly
- Completed reload, in  0.896 seconds
ERROR: Shader Hidden/Universal Render Pipeline/Blit shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/CopyDepth shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/ScreenSpaceShadows shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/Sampling shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/LutBuilderLdr shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/LutBuilderHdr shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/UberPost shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/Debug/DebugReplacement shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
WARNING: Shader Unsupported: 'Hidden/Universal Render Pipeline/StencilDeferred' - All subshaders removed
WARNING: Shader Did you use #pragma only_renderers and omit this platform?
WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
WARNING: Shader Unsupported: 'Hidden/Universal Render Pipeline/StencilDeferred' - All subshaders removed
WARNING: Shader Did you use #pragma only_renderers and omit this platform?
WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
ERROR: Shader Hidden/kMotion/CameraMotionVectors shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/kMotion/ObjectMotionVectors shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/Stop NaN shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/SubpixelMorphologicalAntialiasing shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/Bloom shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/LensFlareDataDriven shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/Scaling Setup shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/Edge Adaptive Spatial Upsampling shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Universal Render Pipeline/FinalPost shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Sprites/Default shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Sprites/Mask shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
ERROR: Shader Hidden/Internal-UIRDefaultWorld shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
WARNING: Shader Unsupported: 'Universal Render Pipeline/Lit' - All subshaders removed
WARNING: Shader Did you use #pragma only_renderers and omit this platform?
WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
ERROR: Shader Universal Render Pipeline/Lit shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
WARNING: Shader Unsupported: 'Universal Render Pipeline/Lit' - All subshaders removed
WARNING: Shader Did you use #pragma only_renderers and omit this platform?
WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
ERROR: Shader GUI/Text Shader shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
WARNING: Shader Unsupported: 'Paint1G_WAnim_Shader' - All subshaders removed
WARNING: Shader Did you use #pragma only_renderers and omit this platform?
WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
ERROR: Shader Paint1G_WAnim_Shader shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
WARNING: Shader Unsupported: 'Paint1G_WAnim_Shader' - All subshaders removed
WARNING: Shader Did you use #pragma only_renderers and omit this platform?
WARNING: Shader If subshaders removal was intentional, you may have forgotten turning Fallback off?
ERROR: Shader Hidden/Internal-UIRDefault shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
UnloadTime: 1.219971 ms
2

So it looks like the Server is runnig. At least those Errors and Warnings are still normal on Unity headless build.
What you could do to make sure if your server is running, is to call a Debug message after Server start. I actually call the Connection Address with Port to make sure the settings are right.