Free tools for sale software for linux

stic bundles a few Linux tools which are intended to support the task of collecting an unreasonable amount of pictures (preferrably in JPEG format).
similar
a program for detecting duplicate or very similar images. It maintains a
database of characteristic color samples which it compares with submitted
pictures. similar depends on libjpeg and ImageMagick s convert (on a
modern Linux desktop system these components should already be present).
Storage medium may be a usual filesystem or a MySQL database. There
also is a MySQL UDF extension to compare image samples within SQL queries.
similar contains the communications module described at sagent.
simv
a core program to perform file management tasks on an image collection.
Its main purpose is to coordinate file movements with the content of
similars database. This applies to importing new files which get tested
against the existent collection, as well as to inform similar about moving
and deleting files within the collection.
simv depends on an external image viewer like ImageMagick s display
(should already be present on a modern Linux desktop system) or John
Bradleys xv (quite a fast one).
simv contains the communications module described at sagent.
sagent
a standalone version of the communications module used in simv and
similar. This software receives input from its start terminal and multiple
clients, distributes several types of output back to them, and is also
able to act itself as such a client.
Since communications mainly use TCP/IP there is an encryption layer
(Blowfish with 128 bit keys) which provides user authentication. Any
single activity of such a user may be particularly permitted or denied.
Secure connections should be possible that way as long as one can defend
the keyfiles and programs on client and server host against foreign
access.
Front-end connection software is available in C, Tcl/Tk and PHP3 to build
custom clients. In the most primitive case even telnet can act as a
client.
The standalone program sagent may be used as communications node in a tree
of clients. Another purpose is to be a shell frontend which sends commands
to a server and receives its replies.
snntpbatch
a command line based NNTP (newsgroups) client. It is mainly intended for
automatic download of images by use of a filter language. Nevertheless it
also downloads the message texts and converts them to HTML code which
includes the downloaded images. Also, it is capable of automatically
posting sets of images to the newsgroups.
The tools are designed to be very independent of the system flavor. On an
average Linux desktop there should be no need to update existing system
components. Actually one could use stic without having display equipment for
graphics.
Any program activity which is possible in dialog may also be performed in
batch runs. Therefore the tools are quite suitable for users who like to get
boring tasks automated and manual tasks simplified.
All tools code is open source and distributed under BSD license.
Example images Credit: U. S. Fish and Wildlife Service (see images/CREDITS)
Enhancements:
- The new encrypted protocol version 0.2 is standard now : SHA-1 seal, 256 bit keys, variable chaining initialization vector.
- The protocol of a connection is chosen by the client and may or may not be accepted by the server.
- See sagent command -security options clientprotocol , serverprotocol.

cz2cz tools is software for converting texts between various charset encodings that are used in the Czech language.
The most important feature is autodetection of the most-used encodings (UTF-8, ISO-8859-2, Win-1250, cp850, and Kamenickych). There are both console non-interactive (text-based) and interactive (curses) applications.
cz2cz also allows you to convert characters with diacritics to TeX (LaTeX) conventions. The interactive part of cz2cz tools can be used for quick manual complementing of diacritics to texts.
Enhancements:
- Automatic detection for the UTF-8 encoding was added.

QA Tools allow you to automatically generate regular releases and/or snapshots of your product. Your product can be distributed as a source code archive (typically .tar.gz) or as a binary distribution archive (.deb, .rpm, .exe).
QA Tools can be used to generate nighly-built source and binary packages suitable for continuous integration and testing.
QA Tools can handle very simple product dependencies (read: in order to build/package product A you first need to build/package product B).
QA Tools work currently with the software packages that have source code managed using Subversion and that are ./configured && make installed using autoconf/automake.
QA Tools can help the people who are developing set of dependent crossplatform products that need to be packaged for different distributions (Debian, Ubuntu, Fedora Core, Suse, Windows, ...).
You should be familiar with autoconf/automake (particulary `make dist), RPM package building, and DEB package building. You should know how to store source code in SVN (trunk, branches, tags). QA Tools will not do any of those for you, but will help you to automate certain things and consume less time doing them.
Enhancements:
- Fix swapped function calls in svn-release-{deb,rpm}

xen-tools project is a collection of scripts which allow you to manipulate virtual images for the Xen virtualization software.
With the tools installed, you may create new instances of Debian, complete with networking, OpenSSH, and user accounts, with one simple command. Images may also be easily updated, listed, or deleted.
Main features:
- Create new Xen instances of Debian Sarge, in minutes. (xen-create-image)
- Duplicate an existing image, whilst updating the networking information. (xen-duplicate-image)
- List all existing images with their networking details (xen-list-images)
- Delete previously created instances. (xen-delete-image)
- Update the images youve created with apt-get, without booting them. (xen-update-image)
Creating A New Image:
The script will contains a full manual written using the perl documentation system, perldoc, which you can read by executing:
xen-create-image --manual
This manual describes the operation of the script, and the supported options. (Each of the available options may be setup in a configuration file for ease of use.)
As a very simple example the following command willcreate an image using DHCP to obtain its networking information. The primary disk will 2Gb with 128Mb memory and swap:
xen-create-image --hostname=vm01 --dir=/home/xen
--size=2Gb --swap=128Mb --memory=128Mb --dhcp
If you wish to give the instance a static IP address then provide the information with the following flags:
--ip
The IP address to give the instance.
--gateway
The IP address of the gateway machine.
--broadcast
The broadcast address to use.
--network
The network the image is upon.
--netmask
The netmask to use.
Enhancements:
- This release supports the installation of RPM-based distributions via the external rinse tool, which is more reliable than the rpmstrap utility.
- New guests will now have a random MAC address generated by default, to avoid issues with udev, and several other minor bugfixes were applied.

HA-Tools provide some programs to improve shell scripting in a High Availability environment.
The halockrun program provides a simple and reliable way to implement a locking in shell scripts. A typical usage for halockrun is to prevent cronjobs to run simultanously. halockrun uses a lock on a file via fcntl(2) which ensures the release of the lock even if the process gets killed via SIGKILL.
The hatimerun program provides a time-out mechanism which can be used from shell scripts.
Enhancements:
- This release features some extensions and clarifications about the exit codes returned by halockrun and hatimerun.

cdp-tools is a software that provides tools to work with the Cisco Discovery Protocol (CDP).
They were written because of a particular hosting center that insisted on learning routes using CDP, and thusly required Cisco Switches for doing their dirty work.
cdp-listen/cdp-routemgr are proof-of-concepts that may be useful if you want to implement a similarly brain-damaged proposal.
cdp-send is a must-have tool if you are in that situation. It can pretend to be just about any kind of Cisco hardware you can imagine.
The source is a bit difficult to follow as a requirement was that it build under both the ancient libnet and the new libnet code. hence, much nasty macro-ing.
Enhancements:
- DESCRIPTION, README: More docs...

Site Tools is a collection of Modules for perl that allow easy template integration, SQL forms creation, tables, sessions, and various other things that make web development a little easier to manage. Requires the SQLObject and PObject classes available on my project page. I have stopped developing these classes in favor of the Template Toolkit, it is a lot more robust and mod_perl aware, please use that instead.

To install everyhthing, follow the next instructions:

perl Makefile.PL
make
make test
make install

Basic documentation can be found through perldoc Site. It has pointers to other modules to look at.

flow-tools is a set of programs for processing and managing NetFlow exports from Cisco and Juniper routers. The tools included are: flow-capture, flow-cat, flow-dscan, flow-expire, flow-export, flow-fanout, flow-filter, flow-gen, flow-header, flow-import, flow-mask, flow-merge, flow-nfilter, flow-print, flow-receive, flow-report, flow-send, flow-split, flow-stat, flow-tag, and flow-xlate.

Flow data is collected and stored by default in host byte ordera nd the files are portable across every endian architectures.

Commands that utilize the network use a localip/remoteip/port designation for communication. "localip" is the IP address the host will use as a source for sending or bind to when receiving NetFlow PDUs (ie the destination address of the exporter. Configuring the "localip" to 0 will force the kernel to decide what IP address to use for sending and listen on all IP addresses for receiving. "remoteip" is the destination IP address used for sending or the expected address of the source when receiving. If the "remoteip" is 0 then the application will accept flows from any source address. The "port" is the UDP port number used for sending or receiving. When using multicast addresses the localip/remoteip/port is used to represent the source, group, and port respectively.

Flows are exported from a router in a number of different configurable versions. A flow is a collection of key fields and additional data. The flow key is {srcaddr, dstaddr, input, output, srcport, dstport, prot, ToS}. Flow-tools supports one export version per file.

Export versions 1, 5, 6, and 7 all maintain {nexthop, dPkts, dOctets, First, Last, flags}, ie the next-hop IP address, number of packets, number of octets (bytes), start time, end time, and flags such as the TCP header bits. Version 5 adds the additional fields {src_as, dst_as, src_mask, dst_mask}, ie source AS, destination AS, source network mask, and destination network mask. Version 7 which is specific to the Catalyst switches adds in addition to the version 5 fields {router_sc}, which is the Router IP address which populates the flow cache shortcut in the Supervisor. Version 6 which is not officially supported by Cisco adds in addition to the version 5 fields {in_encaps, out_encaps, peer_nexthop}, ie the input and output interface encapsulation size, and the IP address of the next hop within the peer. Version 1 exports do not contain a sequence number and therefore should be avoided, although it is safe to store the data as version 1 if the additional fields are not used.

Version 8 IOS NetFlow is a second level flow cache that reduces the data exported from the router. There are currently 11 formats, all of which provide {dFlows, dOctets, dPkts, First, Last} for the key fields.

8.1 - Source and Destination AS, Input and Output interface
8.2 - Protocol and Port
8.3 - Source Prefix and Input interface
8.4 - Destination Prefix and Output interface
8.5 - Source/Destination Prefix and Input/Output interface
8.9 - 8.1 + ToS
8.10 - 8.2 + ToS
8.11 - 8.3 + ToS
8.12 - 8.5 + ToS
8.13 - 8.2 + ToS
8.14 - 8.3 + ports + ToS

Version 8 CatIOS NetFlow appears to be a less fine grained first level flow cache.

8.6 - Destination IP, ToS, Marked ToS,
8.7 - Source/Destination IP, Input/Output interface, ToS, Marked ToS,
8.8 - Source/Destination IP, Source/Destination Port,
Input/Output interface, ToS, Marked ToS,

The following programs are included in the flow-tools distribution.

flow-capture - Collect, compress, store, and manage disk space for exported flows from a router.
flow-cat - Concatenate flow files. Typically flow files will contain a small window of 5 or 15 minutes of exports. Flow-cat can be used to append files for generating reports that span longer time periods.
flow-fanout - Replicate NetFlow datagrams to unicast or multicast destinations. Flow-fanout is used to facilitate multiple collectors attached to a single router.
flow-report - Generate reports for NetFlow data sets. Reports include source/destination IP pairs, source/destination AS, and top talkers. Over 50 reports are currently supported.
flow-tag - Tag flows based on IP address or AS #. Flow-tag is used to group flows by customer network. The tags can later be used with flow-fanout or flow-report to generate customer based traffic reports.
flow-filter - Filter flows based on any of the export fields. Flow-filter is used in-line with other programs to generate reports based on flows matching filter expressions.
flow-import - Import data from ASCII or cflowd format.
flow-export - Export data to ASCII or cflowd format.
flow-send - Send data over the network using the NetFlow protocol.
flow-receive - Receive exports using the NetFlow protocol without storing to disk like flow-capture.
flow-gen - Generate test data.
flow-dscan - Simple tool for detecting some types of network scanning and Denial of Service attacks.
flow-merge - Merge flow files in chronoligical order.
flow-xlate - Perform translations on some flow fields.
flow-expire - Expire flows using the same policy of flow-capture.
flow-header - Display meta information in flow file.
flow-split - Split flow files into smaller files based on size, time, or tags.