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A powerful network security tool, easy, safe and totally free.
...The following versions, as well having automatic detection of network cards, only run on large capacity media, such as hard disk (HD).
Versions in Development:
* 2.33.x: Uses kernel 2.4.x and is developed by Marcinho Samurai.
* 3.x: Uses kernel 4.x and is developed by WoshMan
OpenVoucher is an open source voucher management / hotspot system for authenticating guests in your wifi or cable network. It is designed to be easy to use for anyone who wants to issue vouchers.
For further information and installation how to's, see the project's homepage.
The source code is maintained on Github.
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Easily turn a Ubuntu-based computer into a full linux router, complete with dhcpd, named/bind, iptables firewall, and packet inspection of the network traffic being routed.
Deep packet inspection for layer 2 (mac), layer 3 (ipv4, ipv6), layer 4 (icmp, tcp, udp), and layer 7 (application-specific). Summary of network flows and all layers of inspected traffic is stored in a database at 1-second intervals. This database is then mined to drive the Apache/PHP web interface.
Enables tunneling of network connections through restrictive HTTP proxies. Features: Portmapping, SOCKS4, SOCKS5, web-based admin interface, possibility to use standalone server (perl) or hosted server (PHP), optional authorization from LDAP or MySQL
This product is no longer maintained:
The author created alternative tools: https://databunker.org/ and https://privacybunker.io/
GreenSQL is a database firewall engine used to protect Open Source Databases from SQL injection attacks. It works in proxy mode. Application logic is based on evaluating of SQL commands using risk score factors, as well as blocking of sensitive commands
Server/client suite which provides per-user access control/firewall/QOS. Robust and high speed implementation is secure against MAC/IP spoofing, and can scale to large networks with many clients. Options for additional monitoring and captive portal.
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The WiFi Guard Dog project is a complete and embeddable captive portal solution for wireless community groups or individuals who wish to open free HotSpots while preventing abuse of their connection. Go to dev.wifidog.org to download the latest version.
M0n0wall currently doesn't support IPSEC VPN where one or both ends are dynamic IP addresses. This PHP script along with the dynamic DNS service built into m0n0wall, auto-updates the remote gateway IP address in the VPN configuration.
What are the packets rejected by your Netfilter based firewall today ? How often this suspicious host try to connect to your box ? What are the most rejected domains ? Who is this strange host which scan your ports ?
The responses are in the iptables log
The Plague provides a web UI to a MySQL db of parsed syslog data. The focus has been security reporting. The logs supported (so far) are NetScreen firewalls, Cisco routers and switches and PIXen, Gauntlet firewalls.
brutesshd is an application written in c/php in order to prevent bruteforce attacks through ssh. Brutesshd uses iptables/pfctl tools to block this type of attacks
The goal of WallFire is to build a very general and modular firewalling application based on netfilter or any kind of low-level framework. It will provide a multi-language API, command line and interactive tools as well as X11 or HTML front-ends.
Pothos is an iptables log analyzer. It is used to interpret, in a user-friendly fashion, the logs that ulogd creates with it's MySQL plugin. It's main objective is to be efficient, leaving as small a foot-print as possible.
Security-Tools Database is an easy to use tool to manage tool-tipps (e.g. from the SecurityFocus.com Newsletters and other sources). Simply copy + paste tipps from the newsletter or enter tipps manually. Finds tools by any combinations of search criteria.