tBKwtWS
/
netfilter-config


			
				
					
						
						
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							# Well known ports      0:1023
# Registered ports      1024:49151
# Goldielocks zone      32768:65535
# Dynamic/Private       49152:65535
#
# WAN			86.83.121.29
# vps			185.66.250.42
# tor-exit		185.87.185.45

*filter

:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:clutter - [0:0]

# Local loopback
-A INPUT ! -i lo -d 127.0.0.0/8 -m limit --limit 5/min -j LOG --log-prefix "iptables dropped 127.0.0.0/8, from non localhost: " --log-level 7
-A INPUT ! -i lo -d 127.0.0.0/8 -j DROP
-A INPUT -i lo -j ACCEPT
-A OUTPUT -o lo -j ACCEPT

# Active connections
-A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A OUTPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT

# Ping
-A OUTPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT

# FTP
#-A OUTPUT -p tcp -m tcp --sport ? --dport 21 -j ACCEPT
#-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 49152:65535 -j ACCEPT

# SSH
#-A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -m recent --set --name SSH --mask 255.255.255.255 --rsource
#-A INPUT -p tcp -m tcp --dport 22 -m limit --limit 5/min -m recent --rcheck --seconds 40 --hitcount 4 --rttl --name SSH --mask 255.255.255.255 --rsource -j LOG --log-prefix "iptalbes dropped SSH flood: "
#-A INPUT -p tcp -m tcp --dport 22 -m recent --update --seconds 40 --hitcount 4 --rttl --name SSH --mask 255.255.255.255 --rsource -j DROP
#-A INPUT -p tcp -m tcp --sport 1024:65535 --dport 22 -j ACCEPT
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 22 -j ACCEPT

# Telnet
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 23 -j ACCEPT

# SMTP(s)
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 25 -j ACCEPT
-A OUTPUT -p tcp -m tcp --sport 49152:65535 --dport 465 -j ACCEPT
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 587 -j ACCEPT

# WHOIS
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 43 -j ACCEPT

# DNS
-A OUTPUT -p udp -m udp --sport 1024:65535 --dport 53 -j ACCEPT
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 53 -j ACCEPT

# DNS for VM
-A INPUT -p udp -m udp --sport 1024:65535 --dport 53 -j ACCEPT
-A INPUT -p tcp -m tcp --sport 32768:65535 --dport 53 -j ACCEPT

# DHCP client
-A INPUT -d 255.255.255.255 -p udp -m udp --sport 67 --dport 68 -j ACCEPT
-A OUTPUT -p udp -m udp --sport 68 --dport 67 -j ACCEPT

# DHCP for VM
-A INPUT -s 0.0.0.0 -d 255.255.255.255 -p udp -m udp --sport 68 --dport 67 -j ACCEPT
-A OUTPUT -p udp -m udp --sport 67 --dport 68 -j ACCEPT

# HTTP & HTTPS
#-A INPUT -p tcp -m tcp --dport 80 -m state --state NEW -m recent --set --name HTTP --rsource
#-A INPUT -p tcp -m tcp --dport 80 -m recent --rcheck --seconds 30 --hitcount 20 --rttl --name HTTP --rsource -j LOG --log-prefix "iptables dropped HTTP flood: " --log-level 4
#-A INPUT -p tcp -m tcp --dport 80 -m recent --update --seconds 30 --hitcount 20 --rttl --name HTTP --rsource -j DROP
#-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT -m comment --comment "Tor dir port"
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 80 -j ACCEPT
#-A INPUT -p tcp -m tcp --dport 443 -m state --state NEW -m recent --set --name HTTPS --rsource
#-A INPUT -p tcp -m tcp --dport 443 -m recent --rcheck --seconds 30 --hitcount 20 --rttl --name HTTPS --rsource -j LOG --log-prefix "iptables dropped HTTPS flood: " --log-level 4
#-A INPUT -p tcp -m tcp --dport 443 -m recent --update --seconds 30 --hitcount 20 --rttl --name HTTPS --rsource -j DROP
#-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT -m comment --comment "Tor OR port"
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 443 -j ACCEPT

# HTTP & HTTPS for VM
-A FORWARD -p tcp -m tcp --sport 32768:65535 --dport 80 -j ACCEPT
-A FORWARD -p tcp -m tcp --sport 80 --dport 32768:65535 -j ACCEPT
-A FORWARD -p tcp -m tcp --sport 32768:65535 --dport 443 -j ACCEPT
-A FORWARD -p tcp -m tcp --sport 443 --dport 32768:65535 -j ACCEPT

# NTP
#-A OUTPUT -p udp -m udp --sport 123 --dport 123 -j ACCEPT
-A OUTPUT -p udp -m udp --sport 32768:65535 --dport 123 -j ACCEPT

# Samba
#-A OUTPUT -p tcp -m tcp --sport 49152:65535 --dport 139 -j ACCEPT

# IMAPs
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 143 -j ACCEPT
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 993 -j ACCEPT

# PIP
#-A OUTPUT -d 185.31.17.223 -p tcp -m tcp --sport 32768:65535 --dport 443 -j ACCEPT -m comment --comment "pip"

# Socks5
#-A OUTPUT -p tcp -m tcp --sport 57448:65535 --dport 1080 -j ACCEPT

# OpenVPN
#-A OUTPUT -p udp -m udp --sport 32768:65535 --dport 1194 -j ACCEPT -m comment --comment "OpenVPN"

# XMPP
#-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 5223 -j ACCEPT -m comment --comment "xmpps"
#-A OUTPUT -p udp -m udp --sport 32768:65535 --dport 1900 -j ACCEPT -m comment --comment "xmpp?"

# IRC
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 6667 -j ACCEPT
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 6697 -j ACCEPT -m comment --comment "ircs"

# Privoxy
#-A OUTPUT -p tcp -m tcp --sport ? --dport 8118 -j ACCEPT -m comment --comment "Privoxy"

# Bitcoin
#-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 8333  -j ACCEPT -m comment --comment "Bitcoin"

# MagnaVersum Gogs git SSH
#-A OUTPUT -d 138.201.205.221 -p tcp -m tcp --sport 32768:65535 --dport 10022 -j ACCEPT -m comment --comment "MagnaVersum Gogs git SSH"

# OpenPGP HTTP Key servers
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 11371 -j ACCEPT -m comment --comment "OpenPGP HTTP key servers"

# Torrents
#-A OUTPUT -p udp -m udp --sport 51413 -j ACCEPT -m comment --comment "Torrents"
#-A OUTPUT -p tcp -m tcp --dport 51413 -j ACCEPT -m comment --comment "Torrents"
#-A OUTPUT -p tcp -m tcp --sport 51413 --dport 1024:65535 -j ACCEPT -m comment --comment "Torrents"
#-A INPUT -p udp -m udp --dport 51413 -j ACCEPT -m comment --comment "Torrents"
#-A INPUT -p tcp -m tcp --dport 51413 -j ACCEPT -m comment --comment "Torrents"

# Traceroute
-A OUTPUT -p udp -m udp --sport 32768:65535 --dport 6881:33534 -j ACCEPT -m comment --comment "Traceroute"

# KDE Connect
-A INPUT -p tcp -m tcp --sport 1716 --dport 59442 -j ACCEPT -m comment --comment "KDE Conect"
-A INPUT -d 255.255.255.255 -p udp -m udp --sport 32768:65535 --dport 1716 -j ACCEPT -m comment --comment "KDE Connect"
-A INPUT -d 224.0.0.1 -j ACCEPT -m comment --comment "Multicast: All hosts, used by KDE Connect"
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 1716 -j ACCEPT -m comment --comment "KDE Connect"
#-A INPUT -p udp -m udp --sport 57621 --dport 57621 -j ACCEPT
#-A INPUT -d 224.0.0.251 -p udp -m udp --sport 5353 --dport 5353 -j ACCEPT -m comment --comment "KDE Connect"
#-A OUTPUT -p udp -m udp --sport 1716 --dport 1716
-A OUTPUT -p tcp -m tcp --sport 32768:65535 --dport 1739 -j ACCEPT -m comment --comment "KDE Connect" 

# Attacks, crawls, scans, etc to clutter chain
-A INPUT -p icmp -j clutter
-A INPUT -s 0.0.0.0 -d 255.255.255.255 -j clutter -m comment --comment "Broadcast messages"
-A INPUT -d 224.0.0.1 -p igmp -j clutter -m comment --comment "Multicast: All hosts"
-A OUTPUT -d 224.0.0.22 -p igmp -j clutter -m comment --comment "Multicast"
-A INPUT -p udp -m udp --dport 19 -j clutter -m comment --comment "Character generator, looping to echo = DDoS"
-A INPUT -p tcp -m tcp --dport 23 -j clutter
-A INPUT -p udp -m udp --dport 53 -j clutter
-A INPUT -p udp -m udp --dport 111 -j clutter -m comment --comment "Probe/fingerprint Nix OS"
-A INPUT -p udp -m udp --sport 137 --dport 137 -j clutter -m comment --comment "NETBIOS Name Service"
-A INPUT -p udp -m udp --sport 138 --dport 138 -j clutter -m comment --comment "NETBIOS Datagram Service"
-A INPUT -p tcp -m tcp --dport 445 -j clutter -m comment --comment "MS-DS active directory"
-A INPUT -p tcp -m tcp --dport 2323 -j clutter -m comment --comment "3d-nfsd"
-A INPUT -p udp -m udp --dport 5060 -j clutter
-A OUTPUT -d 224.0.0.251 -p udp -m udp --sport 5353 --dport 5353 -j clutter -m comment --comment "Multicast: mDNS"
-A INPUT -p tcp -m tcp --dport 3389 -j clutter -m comment --comment "MS terminal server RDP"
-A INPUT -p udp -m udp --sport 57621 --dport 57621 -j clutter -m comment --comment "Spotify client P2P"

#-A INPUT -d 255.255.255.255 -p tcp -m tcp --sport 67 --dport 68 -j clutter -m comment --comment "DHCP"
#-A INPUT -m iprange --dst-range 185.66.250.254-185.66.250.255 -j clutter
#-A INPUT -m mac --mac-source d4:ca:6d:74:87:0d -j clutter
#-A INPUT -p udp -m udp --dport 3076 -j clutter -m comment --comment "orbix-config"

# Log & drop
-A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables dropped: " --log-level 7
-A INPUT -j DROP
-A FORWARD -m limit --limit 5/min -j LOG --log-prefix "iptables forward dropped: " --log-level 7
-A FORWARD -j DROP
-A OUTPUT -m limit --limit 5/min -j LOG --log-prefix "iptables rejected: " --log-level 7
-A OUTPUT -j REJECT --reject-with icmp-port-unreachable
-A clutter -m limit --limit 5/min -j LOG --log-prefix "iptables clutter dropped: " --log-level 7
-A clutter -j DROP

COMMIT