October 19, 2006 -
watch – execute a program periodically, showing output fullscreen
DESCRIPTION
watch runs command repeatedly, displaying its output (the first
screenfull). This allows you to watch the program output change over
time. By default, the program is run every 2 seconds; use -n or
–interval to specify a different interval.
The -d or –differences flag will highlight the differences between
successive updates. The –cumulative option makes highlighting
“sticky”, presenting a running display of all positions that have ever
changed. The -t or –no-title option turns off the header showing the
interval, command, and current time at the top of the display, as well
as the following blank line.
watch will run until interrupted.
watch comes with the package “procps” under CentOS
It can be useful in debugging/testing stuff/…
October 10, 2006 -
http://www.ex-parrot.com/~chris/driftnet/
Inspired by EtherPEG (though, not owning an Apple Macintosh, I’ve never actually seen it in operation), Driftnet is a program which listens to network traffic and picks out images from TCP streams it observes. Fun to run on a host which sees lots of web traffic.
Do not abuse, this is for educational purpose only !
September 30, 2006 -
http://www.gentoo.org/proj/en/keychain/
keychain script makes handling RSA and DSA keys both convenient and secure. It acts as a front-end to ssh-agent, allowing you to easily have one long-running ssh-agent process per system, rather than per login session…
August 11, 2006 -
http://www.truecrypt.org/
Free open-source disk encryption software for Windows XP/2000/2003 and Linux
Main Features:
* Creates a virtual encrypted disk within a file and mounts it as a real disk.
* Encrypts an entire hard disk partition or a device.
* Encryption is automatic, real-time (on-the-fly) and transparent.
* Provides two levels of plausible deniability, in case an adversary forces you to reveal the password:
1) Hidden volume (steganography – more information may be found here).
2) No TrueCrypt volume can be identified (volumes cannot be distinguished from random data).
* Encryption algorithms: AES-256, Blowfish (448-bit key), CAST5, Serpent, Triple DES, and Twofish.
Mode of operation: LRW (CBC supported as legacy).
July 28, 2006 -
screen : http://www.gnu.org/software/screen/
Screen is a full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells…
mod_security : http://www.modsecurity.org/
ModSecurity is an open source intrusion detection and prevention engine for web applications (or a web application firewall)…
mod_evasive : http://www.zdziarski.com/projects/mod_evasive/
mod_evasive is an evasive maneuvers module for Apache to provide evasive action in the event of an HTTP DoS or DDoS attack or brute force attack…
mytop : http://jeremy.zawodny.com/mysql/mytop/
mytop is a console-based (non-gui) tool for monitoring the threads and overall performance of a MySQL 3.22.x, 3.23.x, and 4.x server…
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