Free rotation software for linux

Animated rotation is a GIMP plugin that can build an new animated image by rotation of a layer. You can give the angle of rotation and the number of increments.

rotatezlogs allows you to let Zope rotate your log files with rotatezlogs.
This product provides two additional logger handlers to the standard ones (see the doc in zope.conf) that rotate the log files.
It is not always possible to rotate Zope logs using system wide services. This utility enables to rotate automatically Zope logs (with or without zipping) using the features of the "logging" standard module.
Dont look for new objects in the ZMI factory. All is configured in zope.conf.
Note that the log rotation rules is based on the actual size of a log file, and not on time periods (cron like).
Enhancements:
- Unified handlers (simpler to document and configure)
- Added gzip and bzip2 compression modes.

mod_log_rotate is an automatic in-process rotation of transfer log. Replaces rotatelogs.

If you host a lot of virtual servers on a single Apache box and use the supplied rotatelogs program to rotate the logs you’ll notice that your process table is cluttered up with an instance of rotatelogs for each virtual server.

With mod_log_rotate the log rotation is handled by the server process so you save a bunch of processes and file descriptors.

Installation:

Install mod_log_rotate using apxs as follows:

$ apxs -i -a -c mod_log_rotate.c

Configure:

Load and enable mod_log_rotate by adding two lines to your httpd.conf. For Apache 1.3 use

LoadModule log_rotate_module libexec/mod_log_rotate.so
RotateLogs On

and for Apache 2 use

LoadModule log_rotate_module modules/mod_log_rotate.so
RotateLogs On

The LoadModule line may have already been added if you used the apxs -a (activate) option when compiling the module.

If you are using the Apache 1.3 version of the module you will also have to replace any CustomLog, TransferLog, LogFormat and CookieLog directives with the corresponding RotateXXX version. For example

TransferLog logs/access_log

would become

RotateTransferLog logs/access_log

You may need to review the permissions on your log directories. Normally Apache creates log files while it’s running as root and then becomes nobody (or whatever user you’re running it as) before it starts serving pages. In order to be able to create new log files during rotation the permissions on any log directories need to allow writes by the web server user.

The remainder of the directives provided by mod_log_rotate control the interval and timing of log rotation. The configuration directives may be used globally or per virtual server.

The input is a bitmap (PBM, PGM, PPM, or BMP format), and the default output is an encapsulated PostScript file (EPS).
A typical use is to create EPS files from scanned data, such as company or university logos, handwritten notes, etc. The resulting image is not "jaggy" like a bitmap, but smooth. It can then be rendered at any resolution.
Potrace can currently produce the following output formats: EPS, PostScript, PDF, SVG (scalable vector graphics), Xfig, Gimppath, and PGM (for easy antialiasing). Additional backends might be added in the future.
Mkbitmap is a program distributed with Potrace which can be used to pre-process the input for better tracing behavior on greyscale and color images.
Enhancements:
- This release contains minor bugfixes and portability improvements. Rotation is now implemented in the PDF backend.

Mantissa is a collection of various mathematical tools aimed towards for simulation.
Mantissa contains a collection of algorithms, among which:
a small set of linear algebra classes
a least squares estimator
some curve fitting classes
several ordinary differentials equations integrators, either with fixed steps or adaptive stepsize control (see below)
vectors and rotations in a three dimensional space
algebra-related classes like rational and double polynomials
various orthogonal polynomials:
Chebyshev
Hermite
Laguerre
Legendre
some random numbers and vectors generation classes:
Robert M. Ziff four tap shift register (contributed by Bill Maier)
Makoto Matsumoto and Takuji Nishimura Mersenne twister
generators for vectors with correlated components
some basic (min, max, mean, standard deviation) statistical analysis classes
some optimization algorithms using direct search methods:
the Nelder-Mead simplex method
Virginia Torczons multi-directional method
Enhancements:
- For many basic objects provided by Mantissa like Vector3D, Rotation, and the various Polynomial classes, instances are now guaranteed to be immutable.
- This greatly simplifies safe sharing of instances without forcing users to either put severe restrictions on their use of Mantissa classes or make numerous copies just to make sure everything is safe.
- Since the change is a semantic change on the contract of the classes, this version introduces some incompatibilities with respect to previous ones.
- Upgrading to this version is not difficult, though.

ttywatch is a project based on monitoring logs and multiplexes terminal I/O.
It has full log rotation built in, and can use telnet as well as local TTY ports.
Main features:
- Handles log rotation correctly.
- Can be configured in both a configuration file and on the command line (mix-and-match command-line and config file). The config file language is the same as the command-line language; learn one and you know both. Any configuration that can be specified on the command line can be specified in exactly the same way in a configuration file, and vice versa.
- Supports arbitrary data logging methods via dynamically loaded modules.
- Can optionally connect any monitored port to a network socket, and it can support arbitrarily many telnet connections to each port. The connections work together in "whiteboard" fashion; all output is shown to every connection and input is accepted from all connections.
- Can connect to network ports speaking the telnet protocol as well as to serial ports; this allows ttywatch instances to be cascaded. For example, in a room full of servers, each with two serial ports, you could run ttywatch on computer in pairs, each logging output from the other, and then use ttywatch on a master computer to log all the output from each ttywatch instance on the individual computers in one master set of logfiles.
- Includes a fairly complete man page.
- Is packaged with all the pieces necessary for use, including config files, init script, and so forth.
- Depends on lockdev, popt, and glib.

Fail2ban is a tool that scans logs and bans IP that makes too many password failures. It scans files like /var/log/pwdfail or /var/log/apache/error_log and updates firewall rules to reject the IP address.
Main features:
- Highly configurable.
- Parses log files and looks for given patterns.
- Executes a command when a pattern has be detected for the same IP address for more than X times. X can be changed.
- After a given amount of time, executes another command in order to unban the IP address.
- Uses Netfilter/Iptables by default but can also use TCP Wrapper (/etc/hosts.deny) or others firewalls.
- Handles log files rotation.
- Can handle more than one service (sshd, apache, vsftpd, etc).
- Resolves DNS hostname to IP address.
- Can send e-mail notifications.
- Runs as a daemon.
- Multiple logging targets (syslog daemon, stdout, stderr, files).

LMon is a package for near real-time monitoring of logs, sending email alerts upon known (rule hits) or unknown data (rule misses).
It features buffering of multiple rule hits within a given interval, cap at a given maximum number of lines, wait for a given interval before sending next alert, and auto- discovery of log rotation.
It can be run from the command line without configuration, or be controlled from a central configuration file with multiple instances monitoring different log files/sending alerts to different people.
Main features:
- Buffer multiple rule hits within a given interval, cap at a given maximum number of lines, wait for a given interval before sending next alert.
- Auto-discovery of log rotation.
- Simplicity. LMon can run from the command line without configuration, or be controlled from a central configuration file with multiple instances monitoring different log files/sending alerts to different people. It is very much intended to be simple (Keep It Simple, Stupid).