jZebra is a Java applet which allows you to print barcodes, receipts, and more from a Web page to your industry printer. It sends raw print commands and basic HTML and PDFs to your raw, PostScript, or LaserJet printer. It has been tested with Firefox, Safari, Internet Explorer, Chrome, and Opera. It supports parallel, serial, USB, and network printers.
PAC provides a GUI to configure SSH and Telnet connections, including usernames, passwords, EXPECT regular expressions, and macros. It is similar in function to SecureCRT or Putty. It is intended for people who connect to many servers through SSH. It can automate logins and command executions.
YFi Hotspot Manager is a modern AJAX Web front-end for FreeRADIUS 2.x. It has support for vouchers, permanent users, billing post paid, and pre-paid. Multiple languages are supported. Statistics can be generated. It works with CoovaChilli and Mikrotik. It runs on Ubuntu and CentOS. It has Google Maps integration. Third party systems can be integrated. There is thorough documentation.
Histwi is a Linux desktop program for Twitter account management. It allows you to download and save all your Tweets to a database, view and export all saved Tweets to HTML or text files, compare your Following to Followers, follow/unfollow any your friends, track new followers and unfollowers, and manage multiple Twitter accounts.