sudo apt install libtommath1 mc

sudo ln -s /usr/lib/x86_64-linux-gnu/libtommath.so.1 /usr/lib/x86_64-linux-gnu/libtommath.so.0

http://firebirdsql.org

wget https://github.com/FirebirdSQL/firebird/releases/download/R3_0_3/Firebird-3.0.3.32900-0.amd64.tar.gz

sudo apt-get install apache2 php7.2 php7.2-interbase ssl-cert libapache2-mod-php7.2 php7.2-mbstring

/opt/firebird/bin/gsec -user SYSDBA -pass sysdba

/opt/firebird/bin/gbak -C ac_2018-05-27.fbk ac.fdb -v

sudo chown -R firebird:firebird /db

sudo nano /opt/firebird/databases.conf

ac = /db/ac.fdb

sudo a2enmod ssl 
sudo a2dissite 000-default.conf
sudo mkdir /var/www/ssl
sudo mkdir /var/www/w80
sudo chown root:www-data /var/www/ssl
sudo chown root:www-data /var/www/w80
sudo mkdir /etc/apache2/ssl/


sudo nano /etc/apache2/sites-available/ssl.conf
NameVirtualHost *:443
<VirtualHost *:443>
        ServerAdmin webmaster@localhost
        SSLEngine On
        SSLCertificateFile /etc/apache2/ssl/apache.pem
        DocumentRoot /var/www/ssl
        <Directory />
                Options FollowSymLinks
                AllowOverride None
                AddDefaultCharset WINDOWS-1251
                Order allow,deny
                allow from all
        </Directory>
        ErrorLog /var/log/apache2/error.log
        LogLevel warn
        CustomLog /var/log/apache2/access.log combined
        ServerSignature On
</VirtualHost>

sudo a2ensite ssl
systemctl reload apache2


sudo cp config.inc /var/www/ssl
sudo cp index.php /var/www/ssl
редактируем

/opt/ac/web/config.inc.php

В /etc/php5/apache2/php.ini можно задать время жизни сессии в секундах

sudo phpenmod interbase
sudo phpenmod pdo_firebird
sudo phpenmod mbstring
sudo service apache2 reload

возможно нужно будет поправить кодировку в /etc/php/7.2/apache2/php.ini строка 691

default_charset = "windows-1251"