# Maximum value for nginx proxy\_buffer

**URL:** <https://forum.keycloak.org/t/maximum-value-for-nginx-proxy-buffer/17806>\
**Category:** Getting advice\
**Tags:** authentication\
**Created:** [October 6, 2022, 7:37am UTC](https://forum.keycloak.org/t/maximum-value-for-nginx-proxy-buffer/17806 "2022-10-06T07:37:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vfolk30](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/vfolk30/32/6721_2.png) [@vfolk30](https://forum.keycloak.org/u/vfolk30)\
**Post date:** [October 6, 2022, 7:37am UTC](https://forum.keycloak.org/t/maximum-value-for-nginx-proxy-buffer/17806/1 "2022-10-06T07:37:41Z")

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I am getting **502 bad gateway** issue, while trying to login.  
In nginx ingress " **proxy\_buffer\_size"** is set to **256k.**  
I would appreciate if you can guide me what is the max value i can set in ingress to resolve 502 bad gateway issue

keycloack: 16  
k8s: 1.20