Installing required APT packages
/usr/bin/perl bin/perldeps.pl apt-install

Which RDBMS do you plan to use as backend: [mysql|Pg]? Pg

We need to add a temporary repository of Netdot dependencies until all packages are in Debian/Ubuntu official repositories.
Would you like to continue? [y/n] y
Use of uninitialized value $debian_version in pattern match (m//) at bin/perldeps.pl line 171, <STDIN> line 2.
Updating package indexes from sources
Hit:1 http://deb.debian.org/debian buster InRelease
Hit:2 http://deb.debian.org/debian buster-updates InRelease
Hit:3 http://security.debian.org/debian-security buster/updates InRelease
Ign:4 https://netdot.apt.nsrc.org unstable/ InRelease       
Get:5 https://netdot.apt.nsrc.org unstable/ Release [1,578 B]
Ign:6 https://netdot.apt.nsrc.org unstable/ Release.gpg
Ign:6 http://netdot.apt.nsrc.org unstable/ Release.gpg
Reading package lists... Done
E: The repository 'http://netdot.apt.nsrc.org unstable/ Release' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
There was a problem running apt-get update
make: *** [Makefile:82: apt-install] Error 25

index 475386d3..9597279f 100755
--- a/bin/perldeps.pl
+++ b/bin/perldeps.pl
@@ -152,6 +151,8 @@ if ( $action eq 'test' ){
            if ( $distro =~ /(debian)/io ){
                if ( $distro =~ /(squeeze)/io ){
                    $debian_version = lc($1);
+               } elsif ( $distro =~ /(buster)/io ){
+                   $debian_version = lc($1);
                }
                $distro = 'debian';
            }elsif ( $distro =~ /(ubuntu)/io ){
@@ -166,13 +167,13 @@ if ( $action eq 'test' ){
                open(FILE, ">$file")
                    or die "Cannot open $file for writing";
                my $str = "\n## Added by Netdot install\n".
-                   "deb http://netdot.apt.nsrc.org/ unstable/\n".
-                   "deb-src http://netdot.apt.nsrc.org/ unstable/\n\n";
+                   "deb [trusted=yes] http://netdot.apt.nsrc.org/ unstable/\n".
+                   "deb-src [trusted=yes] http://netdot.apt.nsrc.org/ unstable/\n\n";
                if ( $debian_version =~ /(wheezy|squeeze)/ ){
                     my $target = $1;   
                    $str .= "\n".
-                       "deb http://netdot.apt.nsrc.org/ $target/\n".
-                       "deb-src http://netdot.apt.nsrc.org/ $target/\n\n";
+                       "deb [trusted=yes] http://netdot.apt.nsrc.org/ $target/\n".
+                       "deb-src [trusted=yes] http://netdot.apt.nsrc.org/ $target/\n\n";
                }
                print FILE $str;
                close(FILE);

# make apt-install
...
W: --force-yes is deprecated, use one of the options starting with --allow instead.
E: Unable to locate package dnssec-tools

cpan[1]> i /Net::DNS::ZoneFile::Fast/
Reading '/root/.cpan/Metadata'
  Database was generated on Mon, 22 Feb 2021 07:55:58 GMT
No objects found of any type for argument /Net::DNS::ZoneFile::Fast/

--- a/bin/perldeps.pl
+++ b/bin/perldeps.pl
@@ -63,7 +63,6 @@ my @DEPS = (
     {cpan=>'Carp::Assert', apt=>'libcarp-assert-perl', rpm=>'perl-Carp-Assert'},
     {cpan=>'Digest::SHA', apt=> 'libdigest-sha-perl', rpm=>'perl-Digest-SHA1'},
     {apt=> 'libssl-dev', rpm=>'openssl-devel'}, # needed by Net::DNS::ZoneFile::Fast
-    {cpan=>'Net::DNS::ZoneFile::Fast', apt=> 'dnssec-tools', rpm=>''},
     {cpan=>'Socket6', apt=> 'libsocket6-perl', rpm=>'perl-Socket6'},
     {cpan=>'XML::Simple', apt=>'libxml-simple-perl', rpm=>'perl-XML-Simple'},
     {apt=>'snmp'},