First of all, if this server is available on the 'net, it's a bad idea -
don't do it. If it is only accessable to your internal network, you have
less to worry about but you probably still do not want just anyone able to
add/change users.
That being said, you have a few options (I'd go with #3):
Hi,
I'm trying to build CGI application that adds user to linux users database and
set quotas by:
system("$useradd -o -g users -d $userhome -m -c \"$FirstName $Surname\" -p
$Password $Nickname") || die "can't $useradd $Nickname: $!";
system("$setquota / -u $block_soft $block_hard $inode_soft $in