mod_fcgid error reading data from FastCGI server

I'm getting this error on one of my websites suddenly while this website has been working fine for years. The website gives a 500 error right now.

Code:

[Wed Jul 28 12:51:05.877221 2021] [fcgid:warn] [pid 4566] (104)Connection reset by peer: [client **********:12150] mod_fcgid: error reading data from FastCGI server
[Wed Jul 28 12:51:05.877277 2021] [core:error] [pid 4566] [client **********] End of script output before headers: index.php

I read somewhere to use this setting for the virtualhost:
FcgidBusyTimeout 3600
So i changed that in the Options pane under Apache directives but it didn't help.

I also checked the permissions of folders and they have the proper client/web ownership.

Any suggestions here? I need to get this resolved quickly.

 

I tried an ubuntu apt update and apt upgrade but now even more is broken, ISPconfig can't run the server.sh script anymore:

 

Looks like the apt update and upgrade changed it to PHP8:

In System>System>Web>PHP i see paths pointing to PHP 7.1

What do you recommend? I can also rollback this machine to a snapshot before i updated.

 

Thanks! That helped.

I have some additional PHP issues and warnings now but i think i'll be able to fix those myself. If not i will post back. Thanks again for the quick support!

 

After i thought this was solved Wordpress was complaining that i was using an insecure version of PHP so i changed it to PHP7.4 again and no problems until i found out today the website was giving a 500 error again so i had to revert back again to the default PHP version. Any idea how i can fix the above error?

 

If you install the additional PHP versions from Ondrej Sury repository, they have the security fixes backported. So ignore what Wordpress complains about insecure versions, it only looks at the PHP version number, not what security faults have been fixed.

 

What i posted above is the error i found in the log.

I'm confused about my system now regarding PHP. When i look in System>Additional PHP versions it says i have 7.4 and 5.6 available.
But i only see them for some sites as options in the dropdown PHP version field to set and for others they are not in the dropdown.

Then i have another website is not working now because of this error:

When i change the PHP version for the site with this error. I don't get an error about redis but i get one about ioncube loader missing. Of course i can install that but what would be the correct install path for each PHP version when installing or removing modules like redis and ioncube?

 

You must set PHP to PHP-FPM in website settings for the PHP version dropdown to appear.
The needed PHP modules must be installed for all additional PHP versions, too. But redis and ioncube I would install only for the OS default PHP, and run that for those websites that need them.

 

an ioncube install should add the libraries needed for each installed php version.
you'll need to manually append the relevant path into each php.ini,
eg

Code:

zend_extension = /usr/lib/php/20190902/ioncube_loader_lin_7.4.so

for /etc/php/7.4/*/php.ini

Code:

zend_extension = /usr/lib/php/20180731/ioncube_loader_lin_7.3.so

for /etc/php/7.3/*/php.ini

there are no ioncube loaders for php8.0 yet though....

 

It looks like my system default is PHP 7.2:

This is what the server paths are:

What i find confusing is when i look in ISPConfig>System>Web>PHP setting



I see 7.1 paths, is that unrelated.

I guess i have to install the missing modules in /usr/lib/php/20170718, what is the command to do so when installing a module?

Looking at my own notes i had previously installed ioncube like this:

But when i try to do this for PHP 7.4 i don't see a cli or cgi directory under

 

ok, you're adding the ioncube details in a file in conf.d, that's ok, but is that you're full install?
i would expect to see the same for /etc/php/7.2/apache2/conf.d/00-ioncube.ini and /etc/php/7.2/fpm/conf.d/00-ioncube.ini

if 7.2 is the system default, i would have expected those paths to have been updated. was an ispconfig_update ran after the dist-upgrade?
(maybe it doesn't need to change them since the default handler is disabled)

as for php7.4, have you actually added it? if so how? i would expect to see at least one of the folders apache2/cli/cgi/fpm in /etc/php/7.4 if it was installed from the sury/ondrej php repo.

 

I just ran ispconfig_update.sh but it didn't update the paths i showed in the screenshot if you mean those.
But yeah, maybe it's not relevant.

What i would expect to find under /etc/php/7.4 is more folders like cli, conf.d and php.ini but all i have there is mods-available, see my ls command in the previous post.

I used this guide to install PHP 7.4: https://www.howtoforge.com/tutorial/how-to-compile-and-install-php-7.4-on-ubuntu-18-04/#comments

 

did you change the prefix path when you ran the ./configure command from that guide?
if not, then you've installed it to /opt/php-7.4 and you need to change any additional php settings in ispconfig and for your ioncube ini files accordingly.

 

You are completely right, the guide didn't mention it so i didn' t change the path. How do i install redis, ioncube etc now for php 7.4?

 

for ioncube, just change the location you place the ini files to /opt/php7.4/*/conf.d/

for redis, i assume just installing and enabling php7.4-redis would be enough.