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Easy to use tool to block unwanted network access.
The iplock tool is a simple iptables extension that allows you to run iptables commands that otherwise require root access in order to block and unblock IP addresses in your firewall.
This is particularly useful if you have a webserver such as Apache2 running a scripting language such as PHP without root permissions. When you detect that a user is likely a hacker (i.e. tries to access a folder named wp-admin on a non-Wordpress website) then you can use iplock <his-IP-address> to block...
"diptables" is short for "distributed iptables" and as the name implies, it is trying to provide a facility to manage a large "firewall system" in which many number of single firwall machines exist. In this state, it is a very simple C++ program to add
Application proxy toolkit which inherits the ideology of TIS fwtk and maintains API backwards compatibility. The design goal is to make it simple yet powerful; no performance hacks allowed in the code and library dependencies are reduced to minimum.
iplist is a list based packet handler which uses the netfilter netlink-queue library (kernel 2.6.14 or later). It filters by IP-address and is optimized for thousands of IP-address ranges.
These three tools build Checkpoint, Cisco ASA or Netscreen policys from logfiles. They write dbedit, access-list or set address, set service and set policy commands for the traffic seen in the logs, that can be cut and pasted into the firewalls. WOOT
This is the effort to make a simple small business server that provides basic infrastructure with spam and virus protection, service usage accounting and reporting, easy provisioning and password management, message board, addressbook and other.
FWInit is a simple firewall initialization utility coded in Python with Python configuration scripts with access to useful functions for manipulating the iptables filters and keeping the same state between invocations.
inundator is a tool used to anonymously inundate intrusion detection logs with false positives to obfuscate a real attack, leaving the IDS analyst feeling completely inundated.
Nodogsplash offers a simple way to provide restricted access to an internet connection. It is intended for use on wireless access points running OpenWRT (but may also work on other Linux-based devices).
A very simple to use java firewall testing tool. Ever wanted to verify that a TCP or UDP network path is actually open? This tool has both server and client modes so you can test network paths between any two computers that have the Jave JRE installed.
fli4l is a single-floppy Linux-based ISDN/DSL/ethernet-router. It features configuration with some simple ASCII-files and several possible connection-flavors (in/out/callback, raw IP/PPP, PPPoE).
This program is intended to be used by Network Administrators. It is used to test connectivity on specific ports. THis program returns a simple pass or fail. Java 6 is required.
sbills is an Internet traffic monitor. If, for example, you have a local network with a Linux server that provides users with Internet access, it allows you to control Internet traffic.
diptables is simple shell script, that through one method interactive (using dialog and iptables) create a rule of iptables for the local machine. It is very interesting for who is starting to work with iptables.
Web reverse proxy for Single Sign On (SSO). It can apply a security policy (profiles stored in a LDAP directory) to an existing set of applications, consolidate websites, encrypt all communications, rewrite simple URLs...
Netsys is a simple network management system utility for make esier the control of your network. You can control too much things like firewall, NAT, Servers, Pings, and more.
really simple (minimal) implemention for client only igd from upnp, contains just enough to allow you to open/delete ports on a upnp router. uses libcurl, libxml2 and libxslt
SSPE: Simple Security Policy Editor is a simple distributed firewall with an central ascii administration. It uses two plain manually edited ascii-files and some other, static files for each of the target-machines to generate iptables.