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Project Description

Arno's IPTABLES Firewall Script is a secure stateful firewall for both single and multi-homed machines. It supports NAT and SNAT, port forwarding, ADSL ethernet modems with both static and dynamically assigned IPs, MAC address filtering, stealth port scan detection, DMZ support, protection against SYN/ICMP flooding, experimental IPv6 support, multi-interface/aliased-IP support, and extensive user definable logging with rate limiting to prevent log flooding. It has plugin support to add extra features (like SSH Brute Force protection and (Racoon) IPSEC support). It is easy to configure and highly customizable. A filter script that makes your firewall log more readable is also included.
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2012-03-13 22:41

The LAN_INET_OPEN_xxx, LAN_INET_HOST_OPEN_xxx, DMZ_INET_OPEN_xxx, and DMZ_INET_HOST_OPEN logic and handling was changed, and handling of some of the sysctl kernel settings was tweaked. It is now possible to disable setting/resetting of some settings (like forwarding). The default UDP connection timeout is now 60 seconds. Support for a new LOCAL_CONFIG_DIR variable was added. It defaults to "/etc/arno-iptables-firewall/conf.d". Documentation was improved. Miscellaneous tweaks were made for arno-fwfilter.
Tags: Stable

2011-12-23 22:53

This release removes DNS_FAST_FAIL and RESOLV_IPS, since they are both obsolete. It adds miscellaneous tweaks.
Tags: Stable

2011-10-15 00:43

This release fixes the kernel_ver_chk() function to properly handle kernel 3, fixes variables containing REJECT_UDP with IPv6 enabled (it should use "icmp6-addr-unreachable" for IPv6), parses AIF variables with a common function, and logs missing fields with a warning.
Tags: Unstable

2011-09-16 23:41

This release calls insserv during configure, when available. This is required, for example, on Debian/Ubuntu systems which use dependency-based booting. It fixes MULTICAST jumping, which should be done at the end of EXT_INPUT_CHAIN, not at the beginning, or users won't be able create "normal" rules for it. It updates several plugins.
Tags: Stable

2011-03-29 17:54

Kernel support check is performed when IPv6 support is enabled. Several bash-isms were fixed. A workaround was provided for a Busybox 'ash' bug when IPV6_SUPPORT is enabled. A pptp-vpn plugin was provided for local PPTP server support. An incorrect URL for location lookup in arno-fwfilter was fixed. All IPv6 packets with Routing Header Type 0 are dropped when the new IPV6_DROP_RH_ZERO variable is set. Handling of HOST_OPEN_ICMP, HOST_DENY_ICMP_NOLOG, and HOST_DENY_ICMP variables with IPv6 addresses was fixed. There were several other tweaks and fixes.
Tags: Stable

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