Free to port software for linux

TCP port scanner is a network scanner for Linux.

Installation:

1. Install - become root and gunzip/tar tcpscan-X-Y-Z.tar.gz.
2. Type ./confugure , make
3. Type install
4. Enjoy and try type tcpscan localhost
5. To get help - run tcpscan without parametres.

Usage:

tcpscan [-f] [hostname || IP_address]
tcpscan [-f] [first_IP_address] [last_IP_address]

Just Another Port Scanner (JAPS) is an easy to use, bare-bones TCP port scanner. JAPS requires the GTK+ library to run. I created JAPS because I felt it would be a fun project and I wanted to learn GTK+ programming basics.

To compile an install JAPS just type make.

Todo
Add subnet scanning
Add progress bar
Display service name next to port number in results box
If you have any suggestions please contact me. 1

Active port forwarder is a software tool for secure port forwarding. Active port forwarder uses SSL to increase security of communication between a server and a client. Originally, it was developed to forward data point to point.
However, the need for bypassing firewalls in order to connect to internally located computers influenced the further development of the project.
AF is dedicated for people, who dont have an external ip number and want to make some services available across the net.
Moreover, zlib is used to compress the transferred data.
Using one, permanent data/control channel with flow control / packet buffering provides good performance and reasonably small latency.
Running afserver does not require root priviledges, nor does it use threads or other processes.
Enhancements:
- The bug in the ip_listen function (visible on the systems without IPv6 support) has been fixed.

Port forward is a java application which gives you the ability to open tunnels between your local computer and a remote ssh server. With Port forward, tunnels can be created both local or remote.

Examples:

1. Open a local tunnel to reach a remote mysql database

- Your application needs to connect to a remote database server (mysql for example), but the database server (remote.server.example) is not configured to expose mysql to internet directly.
- Port forward will open a local port (3306) and redirect the connections to remote.server.example ssh server
- The remote.server.example ssh server will connect to its local mysql server

2. Open a local tunnel to use a remove VNC desktop

- You want to connect to your home computer which has a vnc server but from work, the firewall blocks vnc connections (generally on port 5901)
- If you have a ssh server at home, you could use it as bridge to connect to a client in your home:

Your position internet your linux ssh server ->>
-->> you client with vnc (192.168.0.40)

you office
internet >

3. Open a remote tunnel to pilot a remote linux server non reachable through internet
In this example, you will create a remote tunnel, this will give the remote man to connect to and reach you.

I used this example if I have to pilot a remote pc, but this pc has no static IP or is behind a firewall
The good solution is to activate port forward on the pc to be piloted and to connect it to a server we can access.


PC 1 (to be piloted) --||||-- firewall ----- internet ----- accessible-server

Installation:

Be sure java is in you classpath
tar zxvf portforward.tar.gz
cd portForward
sh run_linux.sh

iogen is an I/O generator. iogen forks child processes that each run a mix of reads and writes. The idea is to generate heavily fragmented files to make the hardware suffer as much as possible.
This tool has been used to test filesystems, drivers, firmware, and hardware devices. It is by no means meant as a performance measuring tool since it tries to recreate the worst case scenario I/O.
This code was developed and tested on OpenBSD 3.8-current Dec 6 2005. This code should be POSIX compliant and therefore should compile on all well behaving UNIXi. If you are inclined to port this to another OS send me a diff and if it is good Ill merge it with the actual code.
Please note that I will not generate additional makefiles besides the example in the current version. The official Makefile is part of the OpenBSD ports tree and is non-portable. I will publish, ONLY under a BSD license, makefiles and diffs that enable iogen to run on other OSs on this website.
Enhancements:
- The Linux makefile was fixed.

NAT and blocking all but Port 22 is a simple iptables firewall script.

Sample:

# Internal and External Devices
dev_world=ppp0
dev_int=eth0

# Firewall IP
addr_int=192.168.1.1

# Internal Net
net_int=192.168.1.0/24

###################################################
# Load Modules
insmod ip_tables
insmod ip_conntrack
insmod ip_conntrack_ftp
insmod ipt_state
insmod iptable_nat
insmod ipt_MASQUERADE

###################################################
# Delete all Rules in Filtertable
iptables -F

###################################################
# Define new chains
iptables -N BLOCK
iptables -N EXT-INT
iptables -N INT-EXT
iptables -N ICMP-DENY
iptables -N INT-IF
iptables -N EXT-IF

###################################################

iptables -A BLOCK -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A BLOCK -m state --state NEW -i ! $dev_world -j ACCEPT
iptables -A BLOCK -j DROP

iptables -A INPUT -j BLOCK
iptables -A FORWARD -j BLOCK

###################################################
# Point to chains
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -i $dev_int -s $net_int -j INT-IF
iptables -A INPUT -d ! $addr_int -i $dev_world -s ! $net_int -j EXT-IF
iptables -A INPUT -j DROP

iptables -A FORWARD -d ! $net_int -i $dev_world -s $net_int -j INT-EXT
iptables -A FORWARD -d $net_int -i $dev_int -s ! $net_int -j EXT-INT
iptables -A FORWARD -j DROP

iptables -A OUTPUT -j ACCEPT

###################################################
# Chain Rules
iptables -A EXT-INT -j DROP

iptables -A EXT-IF -i ! $dev_world -j DROP
iptables -A EXT-IF -p tcp --dport 22 -j ACCEPT
iptables -A EXT-IF -p tcp --dport 5901 -j ACCEPT
iptables -A EXT-IF -p tcp --dport 1024: -j ACCEPT
iptables -A EXT-IF -p udp --dport 1024: -j ACCEPT
iptables -A EXT-IF -j DROP

iptables -A INT-IF -j ACCEPT

###################################################
# NAT Rules
# Standard Routing
iptables -A POSTROUTING -t nat -o $dev_world -j MASQUERADE -s $net_int

# Port Forwarding
#iptables -A PREROUTING -t nat -p tcp -d 192.168.1.1 --dport 5901 --to 192.168.1.2:5901 -j DNAT

##################################################
# Enable IP-Forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward)

CppUnit is a C++ unit testing framework. CppUnit project started its life as a port of JUnit to C++ by Michael Feathers.
Main features:
- XML output with hooks for additional data
- Compiler-like text output to integrate with an IDE
- Helper macros for easier test suite declaration
- Hierarchical test fixture support
- Test registry to reduce recompilation need
- Test plug-in for faster compile/test cycle (self testable dynamic library)
- Protector to encapsulate test execution (allow capture of exception not derived from std::exception)
- MfcTestRunner
- QT based graphic test runner