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userdoc:tt_firewall_plugins [2014/09/15 09:47] abelbeck [sip-user-agent] |
userdoc:tt_firewall_plugins [2017/07/28 10:29] abelbeck |
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AstLinux provides an IPv4 / IPv6 Stateful Filtering Firewall, based on the excellent [[http:// | AstLinux provides an IPv4 / IPv6 Stateful Filtering Firewall, based on the excellent [[http:// | ||
- | A feature of **AIF** is firewall plugins that can add specific functionality outside of the core script. | + | A feature of **AIF** is firewall plugins that can add specific functionality outside of the core script. |
+ | \\ | ||
+ | {{: | ||
{{: | {{: | ||
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==== dyndns-host-open ==== | ==== dyndns-host-open ==== | ||
- | This implements support to open ports for DynDNS | + | This plugin provides EXT-> |
+ | Should the hostname resolve to multiple IPv4 addresses, a rule for each address will be opened. | ||
- | If you allow common services, in particular SIP or SSH, from public dynamic IPv4 addresses, it is highly recommended to enable this plugin and don't allow these services from the public by default. | + | If you allow common services, in particular SIP or SSH, only from public dynamic IPv4 addresses, it is highly recommended to enable this plugin and don't allow these services from the public by default. |
(IPv4-only) | (IPv4-only) | ||
+ | |||
+ | |||
+ | ==== dyndns-ipv6-forward ==== | ||
+ | !!Note: this plugin is not available until AstLinux 1.2.10 and later.!!\\ | ||
+ | This plugin provides EXT->LAN firewall ' | ||
+ | Should the hostname resolve to multiple IPv6 addresses, a rule for each address will be opened. | ||
+ | |||
+ | !!Tip ->!! A custom ddclient config may be used to publish local servers with dynamic DNS AAAA records. | ||
+ | |||
+ | (IPv6-only) | ||
+ | |||
+ | |||
+ | ==== dyndns-ipv6-open ==== | ||
+ | !!Note: this plugin is not available until AstLinux 1.2.10 and later.!!\\ | ||
+ | This plugin provides EXT-> | ||
+ | Should the hostname resolve to multiple IPv6 addresses, a rule for each address will be opened. | ||
+ | |||
+ | If you allow common services, in particular SIP or SSH, only from public dynamic IPv6 addresses, it is highly recommended to enable this plugin and don't allow these services from the public by default. | ||
+ | |||
+ | !!Tip ->!! Similar functionality as the IPv4 dyndns-host-open plugin except using IPv6 with AAAA DNS records. | ||
+ | |||
+ | (IPv6-only) | ||
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(IPv4-only) | (IPv4-only) | ||
+ | |||
+ | ==== net-prefix-translation ==== | ||
+ | !!Note: this plugin is not available until AstLinux 1.3.0 and later.!!\\ | ||
+ | Commonly used with static assigned ULA (Unique Local IPv6 Unicast Addresses) | ||
+ | (RFC4193) prefixes on local networks and perform a 1:1 mapping to a | ||
+ | GUA (IPv6 Global Unicast Address) (RFC3587) prefix provided by your ISP. | ||
+ | Should the GUA prefix change, the local ULA prefix can remain the same. | ||
+ | |||
+ | |||
+ | (IPv6-only) | ||
==== openvpn-server ==== | ==== openvpn-server ==== | ||
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(IPv4-only) | (IPv4-only) | ||
+ | |||
+ | ==== parasitic-net ==== | ||
+ | !!Note: this plugin is not available until AstLinux 1.3.0 and later.!!\\ | ||
+ | |||
+ | (IPv4-only) | ||
+ | |||
+ | ==== pptp-vpn-passthrough ==== | ||
+ | !!Note: this plugin is not available until AstLinux 1.2.5 and later.!!\\ | ||
+ | This plugin loads the required kernel modules for PPTP VPN Clients to access remote PPTP VPN Server(s) when NAT is enabled. | ||
+ | |||
+ | (IPv4-only) | ||
==== pptp-vpn ==== | ==== pptp-vpn ==== | ||
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This plugin adds SIP User-Agent filtering, no packets are allowed by this plugin, only denied. This plugin monitors inbound (EXT-> | This plugin adds SIP User-Agent filtering, no packets are allowed by this plugin, only denied. This plugin monitors inbound (EXT-> | ||
- | If SIP_USER_AGENT_PASS_TYPES is defined with a list of space separated User-Agent matches, non-matching User-Agent' | + | If SIP_USER_AGENT_PASS_TYPES is defined with a list of space separated User-Agent matches, non-matching User-Agent |
- | If SIP_USER_AGENT_DROP_TYPES is defined with a list of space separated User-Agent matches, matching User-Agent' | + | Otherwise if SIP_USER_AGENT_DROP_TYPES is defined with a list of space separated User-Agent matches, matching User-Agent |
- | Of course this will have no effect on TLS encrypted SIP sessions, only unencrypted SIP. | + | This plugin |
==== sip-voip ==== | ==== sip-voip ==== | ||
This plugin attempts to track the RTP ports used in a SIP dialog and automatically open the necessary RTP ports when needed. | This plugin attempts to track the RTP ports used in a SIP dialog and automatically open the necessary RTP ports when needed. |