Underrated Dev

Flink: Failed to validate any of the configured directories to monitor

Sep 27, 20241 min read4 views

Issue: Flink Dashboard unable to startup with following error messages: + echo 'Starting Flink History Server' + exec...

Knox: Unable to access NiFi Service from Knox UI

Mar 26, 20241 min read9 views

Issue User cannot access NiFi UI from Knox Web UI with these error messages: An unexpected error has...

Knox: Failed to verify the token signature of eyJraW...o5t27A

Mar 26, 20241 min read6 views

Issue User cannot login to Knox Web UI. In knox gateway log show following messages: 2024-03-25 13:28:08,500 INFO knox.gateway...

Tmux: protocol version mismatch (client 8, server 7)

Mar 25, 20241 min read11 views

Issue After version upgrade, tmux failed with error: $ tmux protocol version mismatch (client 8, server 7) Caused There is a old tmux session which...

NGINX: Reverse proxy gives 405 Not Allowed when doing POST

Mar 18, 20241 min read21 views

Issue Flask app with UI failed to access when setup with nginx show error: 405 Not Allowed. Here is the config: location /rmbg { ...

SSSD: Child was terminated by own WATCHDOG

Feb 6, 20241 min read174 views

Issue slow ssh login sssd wrong identify group sudo access failed to AD user this error message appear in /var/log/message sssd[1149276]: tkey...