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New install trouble with installation page

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Hello All, 
I have been running my TNG on an older Ubuntu and need to migrate to new installation (22.04). This is self hosted.
I have everything still running well on my Ubuntu 20.10 with Nginx. 
I am trying to first setup TNG on the new server as a fresh install. I am using Nginx and I am getting an error when I click on anything in the readme.html.

So clicking the set permissions button makes a popup 502 error. I attached the screenshot.
I reinstalled this server twice thinking I may have done something wrong and it still happens.

Can someone provide some insight on what I am missing?

Thanks in advance.


Screenshot 2022-07-12 at 13.44.15.png

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I have solved this (and other issues).
Since I am self hosting, and not an expert, it took some time to figure out what was causing this. 
PHP 8.1 was installed but PHP 7.4 was required. I am not sure where this is defined, but in the error.log for Nginx, I could see the following error:  
 connect() to unix:/run/php/php7.4-fpm.sock failed

php7.4-fpm.pid was missing in /run/php

sudo apt-get install php7.4-fpm

service nginx restart
service php7.4-fpm restart

Later on the install page the mysql was kicking out an error when trying to test the database and user settings. I tested the user and database management manually and it was fine from the CLI.   It was because the php7.4-mysql was missing. 

sudo apt install php7.4-mysqli
Then I could get green on all items and the install completed and is working now.
I hope this helps anyone who is self hosting.
More info on my self hosted installation: 
Hardware: RaspberryPi 4 with 8GB
Software: Vmware ESXI ARM Edition v.1.9
OS: Ubuntu 22.04 as VM
Mysql: MariaDB v.10.6.7
TNG: v.13.1.2


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Ken Roy

What makes you say that PHP 7.4 is required for the full install?  It was successfully tested with PHP 8.1 on a hosting service during beta test.

I know nothing about nginx, so it might be a server configuration issue.   Is it possible based on the error shown

6 hours ago, rick78 said:

connect() to unix:/run/php/php7.4-fpm.sock failed

that the server needs to specify PHP 8.1 for the default 3306 port and for the MySQL socket?

I ask because on ICDSoft you need to now specify a port and socket to access MySQL 8

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8 hours ago, rick78 said:

PHP 8.1 was installed but PHP 7.4 was required

misinterpretation :
PHP 7.4.1 is installed on your machine but some files were missing.

You can now install PHP8 on your machine if you wish.

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Thank you guys for the replies. At first, I was unable to find out why my installation was wanting 7.4 only.

It is the configuration of my Nginx.  I transferred my virtual server file from my previous installation and did not know this was manually configured in my server block.
I cannot remember why I configured this manually, but I seem to remember I had an issue with the version that was installed by default at that time and I think that is why I installed 7.4 and pointed to that.


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