Free ip works software for linux

BW whois is a modern whois client that works as a full-featured Web application or as a commandline tool. BW whois is flexible and configurable with self-detecting CGI support, multiple security options in the CGI mode, a mature TLD table, database caching (using MySQL or PostgreSQL), and many more options and features
Main features:
- Self-detecting CGI support
- Simple command-line use
- Prevents data harvesting with multiple security features for web use
- Optional result caching with an SQL database
- Database features work with either MySQL or PostgreSQL
- Support for multiple outgoing IP addresses
- Support for available/not available results
- Fully customizable HTML output
- Support for Apache-style SSI (server-side includes)
- External TLD table for support of ALL top-level domains
- Fully configurable disclaimer stripping
- Automatic support for netblocks
- Unpacks packed (single-integer) IP addresses
Enhancements:
- Multiple outgoing IP addresses are supported to help with whois servers that block based on queries per IP address.
- Support was added for PostgreSQL in addition to MySQL for database features.
- Support for mod_perl was improved, and support for non-standard whois servers (like whois.denic.de) was improved.

IPmonitor just a simple IP or url monitor, using PING command to check if the given addresses are alive.

IP::Country is a tool for fast lookup of country codes from IP addresses. Finding out the country of a client using only the IP address can be difficult.

Looking up the domain name associated with that address can provide some help, but many IP address are not reverse mapped to any useful domain, and the most common domain (.com) offers no help when looking for country.

IP::Country module comes bundled with a database of countries where various IP addresses have been assigned. Although the country of assignment will probably be the country associated with a large ISP rather than the client herself, this is probably good enough for most log analysis applications, and under test has proved to be as accurate as reverse-DNS and WHOIS lookup.

Linvpn is a secure socket layer for pppd. Linvpn project allows creation of virtual private networks by using an IP routing system between PPP network interfaces.

Cryptography is done by libgcrypts 3DES or blowfish, and Initialization Vector (IV) is changed in each packet transmission.

As linvpn works as client and server, and communication is a single TCP connection, it allows creation of secure tunnels even in complex network layouts, when one or both endpoints are behind a firewall or NAT, with or without dynamic IP addresses.
Linvpn has been tested under Linux, FreeBSD, NetBSD and OpenBSD.

IP::Anonymous is a Perl port of Crypto-PAn to provide anonymous IP addresses.

SYNOPSIS

use IP::Anonymous;
@key = (0..31);
my $object = new IP::Anonymous(@key);
print $object->anonymize("192.0.2.0")."n";

This is a Perl port of Crypto-PAn. Crypto-PAn is a cryptography-based sanitization tool for network trace or log data. The tool has the following properties:

One-to-one

The mapping from original IP addresses to anonymized IP addresses is one-to-one.

Prefix-preserving

The IP address anonymization is prefix-preserving. That is, if two original IP addresses share a k-bit prefix, their anonymized mappings will also share a k-bit prefix.

Consistent across traces

Multiple traces can be sanitized in a consistent way, over time and across locations, even though the traces might be sanitized separately at different time and/or at different locations.

Cryptography-based

To sanitize traces, trace owners provide a secret key. Anonymization consistency across multiple traces is achieved by the use of the same key. The construction of IP::Anonymous preserves the secrecy of the key and the (pseudo)randomness of the mapping from an original IP address to its anonymized counterpart.

This Perl port of Crypto-PAn uses similar logic to that found in Crypto-PAn 1.0, but most importantly maintains consistency in the process so that regardless of implementation, using the same key in each will give consistent results.

USAGE

$object = new IP::Anonymous(@key)

Initializes the electronic codebook object with a 32 8-bit decimal array. This array, consisting of 32 decimals between 0 and 255 inclusive, is the user defined private key for this anonymization session. This 256 bit key should be kept private. The key can be used across sessions to maintain consistent mappings between the original and the anonymized IP addresses.

$object->anonymize($address)

Called with a dotted quad IP address string (e.g. 192.0.2.0). Returns an anonymized version of that IP address as a dotted quad string.

IP Bandwidth Watchdog (ipband) is a pcap based IP traffic monitor. It tallies per-subnet traffic and bandwidth usage and starts detailed logging if specified threshold for the specific subnet is exceeded. If traffic has been high for a certain period of time, the report for that subnet is generated which can be appended to a file or e-mailed. When bandwidth usage drops below the threshold, detailed logging for the subnet is stopped and memory is freed.

This utility could be handy in a limited bandwidth WAN environment (frame relay, ISDN etc. circuits) to pinpoint offending traffic source if certain links become saturated to the point where legitimate packets start getting dropped.

It also can be used to monitor internet connection when specifying the range of local ip addresses (to avoid firing reports about non-local networks).