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Fixes you need after upgrading Ubuntu to 16.04 from 14.04

[TOC]

Postfix

postconf -e daemon_directory='/usr/lib/postfix/sbin
postconf -e shlib_directory='/usr/lib/postfix'
  • Incorrect daemon_directory causes Postfix cannot start.
  • Incorrect shlib_directory causes Postfix cannot find pcre/mysql/pgsql/ldap modules.

PHP [OPTIONAL]

NOTE: This step is toally optional if you're fine with old PHP release.

php was not upgraded to 7.0 automatically, have to install them manually:

apt-get install php-json php-gd php-mcrypt php-curl mcrypt php-intl php-xml php-mbstring php-mysql libapache2-mod-php