Improvements

[jgmdev]

I did the following improvements for those who still use this script to block minor attacks.

• Moved configuration files to /etc/ddos/
• Whitelist hostnames, via /etc/ddos/ignore.host.list.
• The script can run as a daemon with monitoring frequency in seconds defined by DAEMON_FREQ
• Auto-detection of available firewall for use.
• Added support for CSF firewall.
• Added man page.
• Added init.d script.
• Added systemd service support.
• Added support for DESTDIR and a Makefile for easier packaging.
• Added command option to list whitelisted addresses.
• Added --view|-v option.
• Added logging.
• Improved installer and uninstaller.
• Installer does not overrides configuration files.
• New configuration option FIREWALL (see man ddos).
• New configuration option CONN_STATES (see man ddos).
• Check ip of local interfaces and whitelist them to prevent self bans.
• Improved netstat command to support ipv6 (experimental, not tested).
• Removed .cron extension of generated cron file because it seems to cause issues.
• Removed KILL from conf (use -v|--view instead).

Here is the repo: https://github.com/jgmdev/ddos-deflate