About all the things, but mainly Drupal, Ubuntu, CentOS and hosting

Sometimes you need to enable and place a Drupal 7 block in a seen region like header, content, footer, etc., and other times you need to disable it programmatically in a custom module. So to do it you just need to create two functions:

function _start_refreshing() {

db_update('block')
->fields(array(
'status' => 1,
'weight' => -10,
'region' => 'footer',
))
->condition('module', 'mymodule')
->condition('delta', 'mymodule_delta')
->execute();

}

and

function _stop_refreshing() {

One of our Ubuntu servers stopped to show properly delivered messages in user inboxes after the last kernel update (Ubuntu precise (12.04.4 LTS)). Because for some reasons DEFAULT= and ORGMAIL= in /etc/procmailrc got replaced by

DEFAULT=/var/mail/$LOGNAME
ORGMAIL=/var/mail/$LOGNAME

so we had to change it back to:

DEFAULT=$HOME/Maildir/
ORGMAIL=$HOME/Maildir/

Now everything is working fine with the following settings for procmail:

root@quiethost:/etc# cat procmailrc
LOGFILE=/var/log/procmail.log