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Ever wish you add information to your photos like a caption, the place you took it, the date, and perhaps even keywords and categories? You already can. The International Press Telecommunications Council (IPTC) defines a format for exchanging meta-information in news content, and that includes photographs. You can embed all kinds of information in your images. The trick is putting it to use. That's where this IPTCInfo Perl module comes into play. You can embed information using many programs, including Adobe Photoshop, and IPTCInfo will let your web server -- and other automated server programs -- pull it back out. You can use the information directly in Perl programs, export it to XML, or even export SQL statements ready to be fed into a database.

From the tcpcat README: Tcpcat is a simple program that is like `cat' but it works over TCP streams to allow you to cat from one host to another. The host common way to use this program whould be something like this: on host a: $ tcpcat -l 93255 | gzip -dc | tar xvf - on host b: $ tcpcat -h hosta:93255 file.tar.gz Another good use for this program is debugging network stuff. When debugging a newtork client or server you can pipe the output of tcpcat to a hex dump (I recomend xxd which comes with vim). Also it can act as a crude telnet server when invoded with --listen, --input, and --output, this mode is quite useful for network program debugging as well.

Net::Printer ============ Perl module for directly printing to a print server/printer without having to create a pipe to either lpr or lp. This essentially mimics what the BSD LPR program does by connecting directly to the line printer printer port (almost always 515), and transmitting the data and control information to the print server. Please note that this module only communicates with the BSD Line Printer Daemon Protocol as described in RFC-1179. It does not natively speak to remote print servers via SMB, Apple-Talk or Netware. Remote print services running lpsched, such as Sun Solaris or other Sys V-derived operating systems, will work so long as the print spoolers are set up to understand the BSD protocol. Most modern network-capable laser printers, such as those manufactured by HP and LexMark, also "speak" BSD.

bksh is a simple (some would say trivial) program designed to be used as a shell by ssh or rsh-like programs. All it does it to copy its input to a restricted set of backup files. It was made to allow administrators to create backup servers in potentially hostile environments without allowing full shell access to the server or the client. Features: - tape only or file & tape backups (compile-time config) - automatic file rotation allows keeping a history of backups - configurable number of files kept (static compile-time or dynamic) - allows naming of backup files on command line - works as a restricted shell to limit access to server - very simple and short ANSI C code, easy to audit

High Performance and Feature-Rich Idiomatic encode/decode and rpc library for - msgpack: https://github.com/msgpack/msgpack - binc: http://github.com/ugorji/binc - cbor: http://cbor.io http://tools.ietf.org/html/rfc7049 - json: http://json.org http://tools.ietf.org/html/rfc7159

The replication and load balancing plugin is a plugin for the mysqlnd library. It can be used with PHP MySQL extensions (ext/mysql, ext/mysqli, PDO_MySQL) if they are compiled to use mysqlnd. The plugin inspects queries to do read-write splitting. Read-only queries are send to configured MySQL replication slave servers all other queries are redirected to the MySQL replication master server. Very little, if any, application changes required, dependent on the usage scenario required.

The Connector provides a generic connection to a data set, typically configuration data in a hierarchical structure. Each connector object accepts the get(KEY) method, which, when given a key, returns the associated value from the connector's data source. Typically, a connector acts as a proxy to a simple data source like YAML, Config::Std, Config::Versioned, or to a more complex data source like an LDAP server or Proc::SafeExec. The standard calling convention via get(KEY) makes the connectors interchangeable.

ptkdb is a debugger for perl that uses Perl/Tk for a user interface. Features include: Hot Variable Inspection Breakpoint Control Panel Expression List Subroutine Tree To debug a script using ptkdb invoke perl like this: perl -d:ptkdb myscript.pl ptkdb can easily be used to debug CGI scripts if your web server box is capable of running Perl/Tk applications. Just change the shebang line of your scripts to: #! /usr/bin/perl -w -d:ptkdb

The HTML_QuickForm package provides methods for dynamically create, validate and render HTML forms. Features: * More than 20 ready-to-use form elements. * XHTML compliant generated code. * Numerous mixable and extendable validation rules. * Automatic server-side validation and filtering. * On request javascript code generation for client-side validation. * File uploads support. * Total customization of form rendering. * Support for external template engines (ITX, Sigma, Flexy, Smarty). * Pluggable elements, rules and renderers extensions.

管理 git 仓库，通过 SSH 提供对它们的访问，紧密的访问控制，且不需要 shell 帐号。 Gitosis 的目的是使托管 git 仓库变得容易和安全。它通过一个用户帐号 管理多个仓库，使用 SSH 密钥来识别用户。最终用户不需要服务器的 shell 帐号，他们使用一个共享的帐户并且不允许执行任意的命令。