With psad 3.0 I get on startup
Dec 4 17:47:40 cyberguerrilla psad[20978]: Subroutine main::tmpnam redefined at /usr/share/perl/5.24/Exporter.pm line 66. Dec 4 17:47:40 cyberguerrilla psad[20978]: at /usr/sbin/psad line 139.
Perl version v5.24.1
Operating system | Debian Linux 9
Kernel and CPU | Linux 4.9.0-8-amd64 on x86_64
ip6tables v1.6.0 | iptables v1.6.0