iredmail-doc/en_US/upgrade/0-upgrade.ubuntu.18.04-20.0...

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# Upgrade Ubuntu from 18.04 to 20.04
[TOC]
!!! warning
THIS IS A DRAFT DOCUMENT, DO NOT APPLY IT.
## Packages
Install required Python-2 packages:
```
apt install python2-dev
pip2 install uwsgi web.py==0.51 pycurl netifaces
ln -sf /usr/local/bin/uwsgi /etc/alternatives/uwsgi
echo "SQL_DB_DRIVER = 'pymysql'" >> /opt/iredapd/settings.py
```
If you're running OpenLDAP backend:
```
pip2 install python-ldap
```
### Upgrade iRedAPD to the latest release
Please follow this tutorial to upgrade iRedAPD:
- [Upgrade iRedAPD](./upgrade.iredapd.html)
### Upgrade mlmmjadmin to the latest release
Please follow this tutorial to upgrade mlmmjadmin:
- [Upgrade mlmmjadmin](./upgrade.mlmmjadmin.html)
## Configurations
* `/etc/php/7.4/fpm/pool.d/www.conf`
```
[inet]
user = www-data
group = www-data
listen = 127.0.0.1:9999
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
; IP addresses must be separated by comma, and no space between comma and ip.
listen.allowed_clients = 127.0.0.1
pm = dynamic
pm.max_children = 200
pm.start_servers = 10
pm.min_spare_servers = 5
pm.max_spare_servers = 10
pm.max_requests = 500
pm.status_path = /php-fpm-status
ping.path = /php-fpm-ping
request_terminate_timeout = 60s
access.log = /var/log/php-fpm/access.log
slowlog = /var/log/php-fpm/slow.log
request_slowlog_timeout = 10s
```