That error would be the problem but it's a little hard to say what the problem is specifically. The part that jumps out at me is "upstream: "fastcgi://xxx.xxx.xxx.xxx:80" that should be the port that php-fpm is running on and that shouldn't be port 80. It makes it seem like its trying to connect to nginx instead of php-fpm. What does you php-fpm config look like?

Hi, SKaero.

I just tried to load the webmail again, and the php-fpm log (/var/log/php-fpm/php-fpm.log) hasn't recorded anything new (latest entry is from an hour ago).

The nginx error log (/var/log/nginx/error.log) shows a new entry:

*6886 upstream sent unsupported FastCGI protocol version: 72 while reading response header from upstream, client: xxx.xxx.xxx.xxx(IP), server: _, request: "GET /mail/ HTTP/2.0", upstream: "fastcgi://xxx.xxx.xxx.xxx:80", host: "mail.website.com"

I'm not sure if the version of FastCGI protocol can be specified somewhere, of if server should be something other than _. Is this a useful log entry?

Thanks.

A fix for Roundcube master (which supports PHP >= 8.1) might be to remove all ->done() calls from the 'ldap' driver code, but I can't test it.

I suggest to try the ldap_simple driver instead of ldap for the password plugin.

The fatal error is Net_LDAP2 issue. https://github.com/pear/Net_LDAP2/issues/15.

Quote from: SKaero on November 21, 2025, 01:29:55 AMRoundcube supports ssha512 in the password plugin but does require hashing support in PHP. I'm not sure what that error message means or exactly where that would come from, is that an error that you added for debugging?

I found that error in the file /var/www/roundcube/logs/password.log

Roundcube supports ssha512 in the password plugin but does require hashing support in PHP. I'm not sure what that error message means or exactly where that would come from, is that an error that you added for debugging?

Quote from: SKaero on November 20, 2025, 01:14:58 PMIn what context are you asking about the hash support? Roundcube supports ssha512 in the password plugin for changing passwords. The hash type doesn't matter when using normal Roundcube operations.

I enabled the password hash in the configuration file of Roundcube as follows.

$config['password_algorithm'] = 'ssha512';

$config['password_ldap_encodage'] = 'ssha512';
 
Still, I could not change the password of mailbox on Roundcube webmail and found the error in the log file as follows.


[21-Nov-2025 10:10:39 +0800]: <3tcldptb> PHP Error: HIT ssha (POST /?_task=settings&_action=plugin.password-save)


Do Roundcube and php support ssha512?

In what context are you asking about the hash support? Roundcube supports ssha512 in the password plugin for changing passwords. The hash type doesn't matter when using normal Roundcube operations.

Does Roundcube support ssha512 password hash?