add firewall

add firewall

Usage

stack add firewall [action=string] [chain=string] [network=string] [output-network=string] [protocol=string] [rulename=string] [service=string] [table=string]

Description

Add a global firewall rule for the all hosts in the cluster.

Parameters

• [action=string]

  The iptables 'action' this rule should be applied to (e.g., ACCEPT, REJECT, DROP).

• [chain=string]

  The iptables 'chain' this rule should be applied to (e.g., INPUT, OUTPUT, FORWARD).

• [network=string]

  The network this rule should be applied to. This is a named network (e.g., 'private') and must be one listed by the command 'rocks list network'. To have this firewall rule apply to all networks, specify the keyword 'all'.

• [output-network=string]

  The output network this rule should be applied to. This is a named network (e.g., 'private') and must be one listed by the command 'rocks list network'.

• [protocol=string]

  The protocol associated with the rule. For example, "tcp" or "udp". To have this firewall rule apply to all protocols, specify the keyword 'all'.

• [rulename=string]

  The rule name for the rule to add. This is the handle by which the admin can remove or override the rule.

• [service=string]

  The service identifier, port number or port range. For example "www", 8080 or 0:1024. To have this firewall rule apply to all services, specify the keyword 'all'.

• [table=string]

  The table to add the rule to. Valid values are 'filter', 'nat', 'mangle', and 'raw'. If this parameter is not specified, it defaults to 'filter'

Examples

• stack add firewall network=public service="ssh" protocol="tcp" action="ACCEPT" chain="INPUT" flags="-m state --state NEW" table="filter" rulename="accept_public_ssh"

  Accept TCP packets for the ssh service on the public network on the INPUT chain in the "filter" table and apply the "-m state --state NEW" flags to the rule. If 'eth1' is associated with the public network, this will be translated as the following iptables rule: "-A INPUT -i eth1 -p tcp --dport ssh -m state --state NEW -j ACCEPT"

• stack add firewall network=private service="all" protocol="all" action="ACCEPT" chain="INPUT"

  Accept all protocols and all services on the private network on the INPUT chain. If 'eth0' is the private network, then this will be translated as the following iptables rule: "-A INPUT -i eth0 -j ACCEPT"