Hello,

Using another project built on this one, I periodically received the following notification by email:

/etc/cron.daily/logrotate:
error: /etc/logrotate.conf:22 duplicate log entry for /var/log/wtmp
error: /etc/logrotate.conf:29 duplicate log entry for /var/log/btmp
run-parts: /etc/cron.daily/logrotate exited with return code 1

After investigating, I notice that duplicates are introduced by your logrotate.conf, installed at the end of syslog-ng.sh, which contains btmp and wtmp sections. This doubles with files /etc/logrotate.d/btmp and /etc/logrotate.d/wtmp, which are already installed by the official package, just one line above in your script.