OpenVPN 2 is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port.
Discussion forums and project wiki can be found here:
https://forums.openvpn.net/
https://community.openvpn.net/
A java wrapper for popular "libpcap" and "WinPcap" libraries. Accurate full API translation. Packet buffers delivered with no copies. Send custom packets, gather statistics. Comprehensive and easily extensible DPI engine.
Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. It is available for Linux, FreeBSD, Unix, and Windows95/98/2000.
VTun is the easiest way to create Virtual Tunnels over TCP/IP networks with traffic shaping, compression, and encryption.
It supports IP, Ethernet, PPP and other tunnel types. VTun is easily and highly configurable.
VPN, Mobile IP, Shaping, etc
Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.
Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
tgcd is a simple Unix network utility to extend the accessibility of TCP/IP based network services beyond firewalls. This can also be used by network analysts and security experts for penetration testing and analyze the security of their network.
It's written in C Language.
A simple NAT(network address translator) for IPv6 (Linux only). Make sure if you really need it before using it. Functions: 1. IPv6 auto configuration; 2. TCP, UDP and ICMP-Echo port forwarding; 3. static port mapping for TCP and UDP.
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.
PHANTUM - Punch-Hole Access for NAT Traversal of UDP in a Module; Built on top of Samy Kamkar's 'chownat' script, PHANTUM allows for pure client-agnostic TCP services to be tunneled over UDP and hosted behind NAT infrastructures.
sshh allows you to make a persistent tcp connection (tunnel) over an http proxy. Once you have it set up, you can make new connections from either end. Similar in concept to httptunnel but more versatile and scalable.
A lightweight, compact, stand-alone, platform-independent application to forward TCP (over IPv4 or IPv6) connections to another host. Possible uses include - but not limited to - firewall hacking, tunneling, proxying, fortifying ADSL, creating multi-plat
[not maintained anymore] Jay's Iptables Firewall is a script with support for multiple (external/internal) interfaces, TCP/UDP/ICMP control, masquerading, synflood control, spoofing control, port forwarding, VPNs (vtund), ToS, denying hosts, ZorbIPTraff
Packet Auth. Sniffer (or Sequence) Allows you to set on your server this little daemon (pasmal) monitoring tcp/ip & icmp, and on the exact good sequence (the one you only know) run processes (a firewall) - such as access list update, iptables,ipchains.
Bored of having HTTP-only connection to the Internet?
Tired of being unable to connect to irc through a HTTP proxy?
desproxy (a TCP tunnel for HTTP proxies) just makes you able to tunnel all your TCP traffic through a HTTP proxy!
Keywords: HTTP pr
JavaTunnel is a java, free, tunneling program.
It can function in two ways: 1 It can open TCP/IP tunnel between two computers, using HTTP as a transport(not yet). 2 It can open a connection directly, witht he help of a SSL-HTTP proxy(avaible now).
Packit is a network auditing tool that allows you to monitor, manipulate, and inject customized IP traffic into your network. This can be valuable for testing firewalls, intrusion detection systems, port scanning, and general TCP/IP auditing.
Alfandega is a strong and Modular IpTables Firewall. It provides NAT, port-forwarding, spoofing list, blacklist of crackers and spywares sites, protection for tcp/udp scans, DOS/DDOS and Smurf attacks, TCP tuning, DHCP and PPP support and much more.
Krome Shield is designed to fool remote fingerprinting tools (using ICMP & TCP), making them think you're running a different OS. It runs under Linux, using the netlink device and ipchains. In the future it will act like an IDS too, detecting attacks a
Libconnect is a simple library wrapper written in
assembly language that intercepts the calls
applications make to establish TCP connections and
transparently proxies them as necessary.
libpal is an easy-to-use, straightforward packet assembly library that allows programmers to forge any kind of IP, TCP, UDP, ICMP and application layer packages.
Voodoo Exchange Networking Library is a D library that provides a simple API for creating streaming, peer-to-peer TCP connections between two clients, even if they are behind NATs or firewalls, by attempting multiple NAT traversal algorithms.