iptables.firewall.rules

*filter

#  Allow all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0
-A INPUT -i lo -j ACCEPT
-A INPUT -d 127.0.0.0/8 -j REJECT

#  Accept all established inbound connections
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

#  Allow all outbound traffic - you can modify this to only allow certain traffic
-A OUTPUT -j ACCEPT

#  Allow HTTP and HTTPS connections from anywhere (the normal ports for websites and SSL).
-A INPUT -p tcp --dport 80 -j ACCEPT
-A INPUT -p tcp --dport 443 -j ACCEPT

# Zookeeper
-A INPUT -p tcp --dport 2181 -j ACCEPT

# Accumulo TSERVER
-A INPUT -p tcp --dport 9997 -j ACCEPT

# Accumulo TRACE
-A INPUT -p tcp --dport 12234 -j ACCEPT

# Hadoop Job Tracker
-A INPUT -p tcp --dport 50030 -j ACCEPT

# Hadoop Name Node
-A INPUT -p tcp --dport 50070 -j ACCEPT

# Hadoop Secondary Name Node. No reason to expose this.
#-A INPUT -p tcp --dport 50090 -j ACCEPT

# Accumulo GC
-A INPUT -p tcp --dport 50091 -j ACCEPT

# Accumulo
-A INPUT -p tcp --dport 50095 -j ACCEPT

#  Allow SSH connections
#
#  The -dport number should be the same port number you set in sshd_config
#
-A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT

#  Allow ping
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT

#  Log iptables denied calls
-A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7

#  Reject all other inbound - default deny unless explicitly allowed policy
-A INPUT -j REJECT
-A FORWARD -j REJECT

COMMIT