http://www.digitalfaq.com/forum/guides-ispconfig/3261-how-optimize-ispconfig.html
vi /etc/postfix/main.cf
# content_filter = amavis:[127.0.0.1]:10024
# receive_override_options = no_address_mappings
/etc/init.d/postfix restart
/etc/init.d/clamav-daemon stop /etc/init.d/clamav-freshclam stop /etc/init.d/spamassassin stop
/etc/init.d/amavis stop
update-rc.d -f clamav-daemon remove update-rc.d -f clamav-freshclam remove update-rc.d -f spamassassin remove update-rc.d -f amavis remove
https://github.com/servisys/ispconfig_setup
好用
https://www.howtoforge.com/tutorial/perfect-server-debian-8-jessie-apache-bind-dovecot-ispconfig-3/
https://www.howtoforge.com/tutorial/perfect-server-debian-8-jessie-apache-bind-dovecot-ispconfig-3/2/
https://www.howtoforge.com/tutorial/perfect-server-debian-8-jessie-apache-bind-dovecot-ispconfig-3/3/
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Backup entire ispconfig 3 and restore
https://www.howtoforge.com/community/threads/ispconfig-3-move-to-another-server.41643/#post-295412
https://www.howtoforge.com/community/threads/what-to-backup-ispconfig-and-need-to-know-how.41595/
