htpasstool is a Web-based management tool for Apache .htpasswd files. It's small (just one PHP file) and straightforward to use. It can be used to protect/unprotect directories in a Web space, to add users, rename users, remove users, and change passwords in .htpasswd files. All of this is through a friendly, simple Web interface that is trivial to install.
Naken Web is a mini-webserver capable of serving out static Web pages along with images from an AVI/MJPEG file or a video4linux2 compatible camera. Video can be served out as either single frames with a client pull or as streaming MJPEG with a server push. Naken Web is small enough to run on an embedded computer.
The CyaSSL embedded SSL library is a lightweight SSL library written in ANSI C and targeted for embedded and RTOS environments, primarily because of its small size, speed, and feature set. It is commonly used in standard operating environments and cloud services as well because of its royalty-free pricing and excellent cross platform support. CyaSSL supports industry standards up to the current TLS 1.2 and DTLS 1.2 levels, is up to 20 times smaller than OpenSSL, and offers progressive ciphers such as HC-128, RABBIT, and NTRU.
BinarySEC is an intelligent Web application firewall designed to suppress malicious traffic on Web sites and applications. Its artificial intelligence engine learns normal traffic and blocks malicious requests with very high accuracy. BinarySEC secures against a wide range of attacks, including cross-site scripting (XSS), SQL injection, command injection, PHP includes, parameter tampering, buffer overflow, directory traversal, attack obfuscation, and more. BinarySEC for Apache includes a graphical installer and a Web-based administration interface.