The "NFL - Network Functions Library" includes a set of network tools which can ping a host, trace routes to a host, resolve hostnames from IP adresses, send echo-requests to corresponding hosts, ...
The "NFL - Network Functions Library" includes a set of network tools which can ping a host, trace routes to a host, resolve hostnames from IP adresses, send echo-requests to corresponding hosts, send discard-requests to corresponding hosts, return systat-informations of a specific host, return daytime-informations of a host, receive qotd messages (quote of the day - messages) from corresponding hosts, return chargen-datas from corresponding hosts, return time-informations of a host, set system date and time settings, receive whois-informations of a host, receive finger-informations about an user of a specific host and return HTTP-header or whole files of a given host. It is absolutely free for non-commercial use (contact the author for commercial use).