- Canvas is a feature-rich learning management system.
- Cjdns implements an encrypted IPv6 network using public key cryptography for address allocation and a distributed hash table for routing. This provides near zero-configuration networking without many of the security and robustness issues that regular IPv4 and IPv6 networks have. Hyperboria is the largest cjdns network, with hundreds of active nodes around the world.
- Cloudgizer is a tool for building web applications as Apache modules in C language enhanced with simple markup, with emphasis on performance, small-footprint, and more productive and safer programming in C. It combines the ease of scripting with the power of C, improving the resource utilization for cloud applications. The programmer writes simple markup language mixed with C code, which is then translated entirely into C code and compiled natively as Apache module. The resulting application is fast and takes less memory, as there are no interpreters or virtual machines. Features include easy markups to use MariaDB database, HTML input parameters, cookies, simpler outputting of web pages, files storage and manipulation, encryption, encoding, program execution, web calls, safer and easier string manipulation etc. - the list is too long to place in one sentence. Overall Cloudgizer does a lot of stuff for you that you'd otherwise need to do yourself. A memory garbage collection system and memory overwrite/underwrite detection comes in handy for program stability. The same goes for string and memory handling markups to help write applications that won't crash. Also included is an application packaging system and an automated application installer. This makes rollout of products and release cycle more manageable. Cloudgizer source files have extension .v. Cloudgizer pre-compiler (cld program) will turn your .v files into .c files, ready for compilation as pure C programs. Then, your program will be compiled and linked with Apache web server on RH/Centos systems. It links with Apache as an Apache module in a "prefork" configuration. It does the work of communicating with Apache, and it makes it easier to write high-performance/small-footprint web programs in C. Cloudgizer is not designed to be thread-safe as it works in a "prefork" configuration of Apache. You can also build command-line programs. The same program can serve as both command-line utility and a web program linked with Apache. Cloudgizer works with RedHat/Centos 7 operating system, Apache web server and mariaDB database.
- cmogstored is an alternative implementation of the "mogstored" storage component of MogileFS. cmogstored is implemented in C and does not use Perl at runtime. cmogstored is the only component you need to install on a MogileFS storage node. Read more about MogileFS here: http://mogilefs.org/ cmogstored is not directly affiliated with the MogileFS project nor any commercial interests behind MogileFS.
- ColdStore is a gigabyte-scale persistent object store which maps objects into a file (for persistence), can allocate objects in a minimal working-set of pages (for speed), permits library versions to change without a rebuild of the store, and permits application checkpoint/restart. Coldstore might be used to replace a database, cache highly structured objects, act as an OODB, make STL persistent, act as a Document Store for XML/SGML/HTML, create a MUD. Future projects include a virtual machine toolkit, ports of several languages, VW and byte-interpretive language workbench.
- Comanche Server
- Comanche is an extremely simple HTTP (web) server written entirely in Python. It does not use any of the many Python standard library modules related to HTTP serving, as it was initially written as a learning exercise. At present it does not support CGI or SSL and uses a simple fork-on-demand architecture, but is being actively improved.
- The CometVisu is a web technology based realtime visualization for home and building automation systems like the KNX bus or OpenHAB. It can be used on a wide range of systems, ranging from smart phones over tablets up to laptops and PCs.
- The Corais platform is based on Open Atrium, which is itself based on Drupal. It is used for organizing collaborative projects.
- 'ctrlproxy' is an IRC server with multiserver support. It runs as a daemon and connects to a number of IRC servers, then lets you to connect from a workstation and work as the user who is logged in to the IRC server. After you disconnect, it maintains the connection to the server. It acts like any normal IRC server, so you can use any IRC client to connect to it. It supports multiple client connections to one IRC server (under the same nick), so you can connect to IRC using your IRC nick, even if you have an IRC session open somewhere else. It supports logging (in the same format as the irssi IRC client), password authentication, and ctcp (in case no clients are connected).
- DNRD is a proxy DNS Daemon. It is useful for a home network where you have multiple ISPs or VPNs. DNRD can be set up to forward all DNS queries to the appropriate DNS server for each of your ISPs.
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