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The anonymizing relay monitor (arm) is a terminal status monitor for Tor, intended for command-line aficionados, ssh connections, and anyone with a tty terminal. This works much like top does for system usage, providing real time statistics for: * bandwidth, cpu, and memory usage * relay's current configuration * logged events * connection details (ip, hostname, fingerprint, and consensus data) * ... etc

Recog is a framework for identifying products, services, operating systems, and hardware by matching fingerprints against data returned from various network probes. Recog makes it simply to extract useful information from web server banners, snmp system description fields, and a whole lot more.

Lockdown is a script designed to harden a FreeBSD system by editing the system's configuration files and set permissions, flags and ownership on SUID, GID and "information" files. However, the main goal of lockdown is to centralize knowledge on how much you can harden the system without breaking it. Mirror: http://lockdown.loproc.dk/

SSH key-based authentication is tried-and-true, but it lacks a true Public Key Infrastructure for key certification, revocation and expiration. Monkeysphere is a framework that uses the OpenPGP web of trust for these PKI functions. It can be used in both directions: for users to get validated host keys, and for hosts to authenticate users.

Mussh 是一个 shell 脚本，让您通过 ssh 在多台主机通过一个命令就可以执行一个命令或者脚本。如果可能 mussh 会使用 ssh-agent 和 RSA/DSA 密钥来尽量减少你输入密码的次数。

The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools offering a comprehensive and powerful vulnerability scanning and vulnerability management solution. This package contains the OpenVAS Manager which provides services on top of the OpenVAS Scanner to manage scan results, configurations and user access control.

Anubis is a variable-length key, 128-bit block cipher designed by Vincent Rijmen and Paulo S. L. M. Barreto. Anubis was submitted as a NESSIE candidate. Key length can be 128, 160, 192, 224, 256, 288, or 320 bits. The default key length in this implementation is 128 bits.

This is Crypt::CBC, a Perl-only implementation of the cryptographic cipher block chaining mode (CBC). In combination with a block cipher such as DES or IDEA, you can encrypt and decrypt messages of arbitrarily long length. The encrypted messages are compatible with the encryption format used by the OpenSSL package.

Crypt::Camellia_PP is a pure perl implementation of Camellia, a 128-bit symmetrical block cipher with 128-bit, 192-bit, and 256-bit key from NTT and Mitsubishi Electric Corporation. It is one of the approved encryption methods to be used by European Union as well as specified in several Internet RFCs. See also: http://info.isl.ntt.co.jp/crypt/eng/camellia/index.html

GOST 28147-89 is a 64-bit symmetric block cipher with a 256-bit key developed in the former Soviet Union. Some information on it is available at http://vipul.net/gost/ . This module implements GOST encryption. It supports the Crypt::CBC interface, with the functions described below. It also provides an interface that is backwards- compatible with Crypt::GOST 0.41, but its use in new code is discouraged.