Install libauthen-libwrap-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libauthen-libwrap-perl
Description:
module providing access to the TCP Wrappers library
The Authen::Libwrap module allows you to access the hosts_ctl() function from Wietse Venema's popular TCP Wrappers security package. This allows validation of network access from Perl programs against the system-wide hosts.allow file. . If any of the parameters to hosts_ctl() are not known (i.e. username due to lack of an identd server), the constant STRING_UNKNOWN may be passed to the function.
Homepage: https://metacpan.org/release/Authen-Libwrap
Version: 0.23-1build2
Section: universe/perl