Edit NGINX config or prevent it from resetting to default

V3NTUS

• August 13, 2025 09:47

I need to add the following lines to my nginx.conf 

proxy_buffering off;

proxy_request_buffering off;

proxy_max_temp_file_size 0;

client_max_body_size 0;

 

But from time to time, the configuration resets to default.

 

I tried to edit conf.d/includes-optional/cpanel-proxy.conf or /etc/nginx/conf.d/users/user.conf

 

Either way, the file resets to default configuration after a few days or so. I've been doing this for months (manually editing the files) but honestly I'm looking for a PERMANENT solution, thank you.

 

I don't care if global or domain-specific, I'd like those settings to be placed and to NOT be removed by software updates, thank you.

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  cPRex Jurassic Moderator

  • August 13, 2025 14:08

  Hey there!  Are you able to create one of the custom include files as outlined here?

  https://docs.cpanel.net/knowledge-base/nginx/customize-reverse-proxy-nginx-configurations/

  I would expect custom files to *not* be overwritten at any point.

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  V3NTUS

  • August 13, 2025 14:43

  Hi cPRex,

  first of all thank you for what you do here, you're very active and your help is not unnoticed.

  I tried to add a server or a location block in a custom file as per instructions, but nginx doesn't rebuild succesfully as it indicates a duplicate entry whenever I do so.

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  cPRex Jurassic Moderator

  • August 13, 2025 15:19

  Thanks for the kind words!

  I'm wondering if these are defined somewhere else on your system already, as the following worked well for me:

  -created a "custom.conf" file in /etc/nginx/conf.d
  -added the values you included above
  -rebuilt with the"/scripts/ea-nginx config --all" command

  and things restarted normally.

  Can you try this command to see if you've already added one of those values in another file?

  grep -Ri "proxy_buffering" /etc/nginx/*

  since our default installation of Nginx is not including that, at least on a test machine.

  Note: if your duplicate entry isn't the proxy_buffering value you may need to alter that search to find the specific one you're looking for, but it wouldn't take long to try all four.

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  Bill Williams

  • August 13, 2025 15:32

  I ran the command and got the result

  $ grep -Ri "client_max_body_size" /etc/nginx/*
  /etc/nginx/conf.d/ea-nginx.conf:client_max_body_size 128m;
  /etc/nginx/ea-nginx/settings.json:   "client_max_body_size" : "0"
  /etc/nginx/ea-nginx/ea-nginx.conf.tt:client_max_body_size [% settings.client_max_body_size %];
  /etc/nginx/ea-nginx/settings.json.rpmsave:   "client_max_body_size" : "128m"

   

  Which of these will take precedence?

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  cPRex Jurassic Moderator

  • August 13, 2025 15:38

  .tt and .rpmsave aren't "active" configuration files, so those don't matter for us.

  ea-nginx.conf is likely the one you manually added at some point, correct?  And that will get overwritten at some point.

  Personally - I would manually remove *both* of the entries from ea-nginx.conf and settings.json and create the custom conf file and that should stay put forever.

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  Bill Williams

  • August 14, 2025 04:54
  • Edited

  ... my bad ...

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