Pagekite is software to make servers on "localhost" visible to the wider Internet. It can be used by Web developers to show off their works in progress to clients or colleagues, embedded developers who need direct access to devices in the field, or as an alternative to dynamic DNS for individuals/hobbyists who would rather host their own content than rely on 3rd party hosting. It creates and maintains a tunnel between your server on localhost and a remote "front-end" (a reverse proxy). Only the front-end has to have a visible IP address; the server itself can reside on a heavily firewalled computer, a mobile device, or even an anonymous node on the Tor network.
ctunnel is a program for tunneling and proxying TCP or UDP connections via a cryptographic tunnel. ctunnel can be used to secure any existing TCP or UDP based protocol, such as HTTP, Telnet, FTP, RSH, MySQL, VNC, DNS, XDMCP, NFS, etc. You can also chain or bounce connections to any number of intermediary hosts.
cpt aims to be running in front of any HTTPS server. It forwards all requests that don't call for a "CONNECT .." to the normal HTTPS server. There is no error handling for mistaken requests; they go straight to the default server. A request that doesn't pass the conditions is passed forward too, and the Web server will handle it (with the default error page). Users should be unaware that cpt is running as a proxy.
Swan is a bandwidth manager and Internet gateway that effectively controls and manages the collective bandwidth of an organization. As an Internet gateway it includes a transparent proxy, caching engine, access control lists, caching DNS server, logging and monitoring tools, an authentication mechanism, bandwidth clubbing, and policy management. It is ideal for ISPs, corporations, schools, colleges, etc. Both GUI and console-based interfaces are available for controlling the software. Installation is through a bootable CD that automatically formats the system.
Cyan Secure Web Proxy Server is a carrier grade, high performance Internet filtering proxy server for Linux. It includes scalable (user/group/host) Web filter and virus scan utilities for blocking malicious applications at the gateway. It has an advanced URL database, authentication support (Active Directory, LDAP, NTLM), SSL Interception, easy deployment, and remote administration.
Yxorp is a reverse proxy for HTTP. All the fields in requests can be checked and modified by rules. Load balancing, virtual hosting, multiple TCP ports, and SSL are supported. The configuration can be modified on-line. Yxorp can be used to protect Web sites, place pages behind a login, rewrite URLs, etc.