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Tiny SHell is a lightweight client/server clone of the standard remote shell tools (rlogin, telnet, ssh, etc.). It provides remote shell execution and file transfers. It is 8-bit clean, has full support for pseudo-terminal pairs (pty/tty), and uses simple xor encryption. Most Unix platforms are currently supported (Linux, BSD, OSF, SunOS, and IRIX).
The FreeRADIUS Server Project is an attempt to create a high-performance and highly configurable RADIUS server. While the server is conceptually similar to many of the Livingston server variants, it has many more features, and is much more configurable. It includes plug-in modules with support for MySQL, PostgreSQL, Oracle, IODBC, IBM DB2, LDAP, Kerberos, PAM, MS-CHAP, and many more. It allows the administrator to fully customize the behaviour of authentication, accounting, and logging.
SysOrb is a client/server package that can monitor servers remotely (such as Web servers), or monitor devices on servers (such as disks, memory, load, etc.). It will alert the administrators via e-mail or pager if a server is entering a critical condition, and has its own database backend, allowing for massive collection of system statistics.
Email sends email to remote SMTP servers via the command line, which makes it useful in cron jobs. It will send to any RFC standard remote ESMTP server, and will allow you to encrypt, sign, and design your message on the fly. It has the capability to use signature files with dynamic options, address book functionality, and users can also attach pictures, binary files, documents, or whatever they want. It is completely compatible with GNUPG for encryption and signing, and is easy to configure and use.
ccrypt is a commandline utility for encrypting and decrypting files and streams. It was designed as a replacement for the standard Unix crypt utility, which is notorious for using a very weak encryption algorithm. ccrypt is based on the Rijndael cipher, which is the U.S. government's chosen candidate for the Advanced Encryption Standard (AES). This cipher is believed to provide very strong security. A compatibility mode is included for decrypting legacy "unix crypt" files.
Ups shutdown script
Ups shutdown script is a set of bash scripts that can be used to monitor a SNMP UPS and shut down servers if the power goes out. One of the scripts can run on a monitoring server and will report back when a UPS has gone offline.
BeeCrypt is an ongoing project to provide strong and fast cryptography in the form of a toolkit usable by commercial and open source projects. Included in the library are entropy sources, random generators, block ciphers, hash functions, message authentication codes, multiprecision integer routines, and public key primitives.
wormulon is a network traffic monitor based on the slurm backend, intended to be included in the screen hardstatus line. It supports all platforms slurm supports (*BSD, Linux, Solaris, HPUX) and can be used to feed third-party programs like mrtg or rrdtool.
sXid is an all in one suid/sgid monitoring program designed to be run from cron on a regular basis. Basically it tracks any changes in your s[ug]id files and folders. If there are any new ones, ones that aren't set any more, or they have changed bits or other modes then it reports the changes in an easy to read format via email or on the command line.
ngrep strives to provide most of GNU grep's common features, applying them to the network layer. ngrep a pcap-aware tool that will allow you to specify extended regular expressions to match against data payloads of packets. It currently recognizes TCP and UDP across ethernet, ppp and slip interfaces, and understands bpf filter logic in the same fashion as more common packet sniffing tools like tcpdump and snoop.
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