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Recursive directory encryption with GnuPG
gpgdir is a perl script that uses the CPAN GnuPG::Interface module
to encrypt and decrypt directories using a gpg key specified in ~/.gpgdirrc.
通过 xterms 和 ssh 同时控制多台主机
ClusterSSH 通过单个图形的控制窗口来控制许多的 xterm 窗口，以便通过一个 ssh 连接
在多台服务器上交互地运行命令。
Application mapper
Amap is a next-generation scanning tool, it identifies applications
and services even if they are not listening to the default port
by creating a bogus-communication.
Flexible port-knocking server and client
knockd is a port-knock server. It listens to all traffic on an ethernet
(or PPP) interface, looking for special "knock" sequences of port-hits.
A client makes these port-hits by sending a TCP (or UDP) packet to a
port on the server. This port need not be open -- since knockd listens
at the link-layer level, it sees all traffic even if it's destined for
a closed port. When the server detects a specific sequence of port-hits
port-hits, it runs a command defined in its configuration file. This
can be used to open up holes in a firewall for quick access.
Multi-cipher cryptographic library (used in PHP)
libmcrypt is a cryptographic library that conveniently brings together
a variety of ciphers for convenient use.
In particular, having libmcrypt allows you to build PHP with
encryption.
Python bcrypt module
py-bcrypt is a Python wrapper of OpenBSDs Blowfish password hashing code,
as described in A Future-Adaptable Password Scheme by Niels Provos and
David Mazieres.
Perl5 module to provide simple Radius client facilities
The Authen::Radius module provides a simple class that allows you to
send/receive Radius requests/responses to/from a Radius server.
Perl5 anti-virus file scanning package
File::Scan allows users to make multiplatform virus scans which
can detect Windows/DOS/Mac viruses.
It includes a virus scanner and a signature database.
Perl extension for ElfHash hash algorithm
Digest::Elf provides an XS based implementation of the ElfHash algorithm.
ElfHash generates resonably 32 bit integer value from a string in a
reasonably short period of time.
PECL extension to the libssh2 library
PHP bindings to the libssh2 library which provide access to resources
(shell, remote exec, tunneling, file transfer) on a remote machine using a
secure cryptographic transport.