CHAPTER 7: UNIX/RTEL Host Setup

In general, rteld is the only application that users might have to run interactively. The lp and lpr filters are called by the host’s printing subsystem.

7.2 Installing the Reverse Telnet Software

This section describes the procedure used to install the Reverse Telnet software (RTEL) on a UNIX host machine.

If you received the distribution on DOS-format floppy disks, you will have to recreate the RTEL file structure on a UNIX machine. The DOS floppies contain all the download files (*.SYS), a single tar archive containing the RTEL source files (rtel_src.tar) and the RTEL executables for all system types (lp_filter.*, lpr_filter.*, rteld.* and talk.*). Because of DOS filename length restrictions, you will have to rename the lp and lpr filter executables with the correct UNIX file names. When the tar archive is untarred (using tar xvf

./rtel_src.tar), the resulting file names will be correct.

The EPS includes reverse Telnet executables for the following operating systems: MIPS RISC/os, SunOS (68xxx and SPARC based), Digital ULTRIX (RISC-based, non-VAX), IBM® AIX (on RS6000-style machines), SCO UNIX (for 80386- and 80486-based machines), and HP®-UX (68xxx-based). You should read the README files (included with the distribution media) for a detailed list of the supported environments and software version levels.

7.3 Reverse Telnet for Unsupported UNIX Machines

If your operating system is not one of those listed above, you must modify the distributed software and compile executable code for your machine. For more information, refer to the README files in the /tmp/rtel and /tmp/rtel/source subdirectories. Recompiling the software for your machine should be largely uneventful, unless your machine is missing system include files or libraries. If you encounter problems building the software and cannot resolve them with the help of the README files, contact Technical Support.

7.4 Installation Procedure

The lpinstall script you will use in this procedure creates and links necessary files and directories if they do not already exist.

There is also an uninstall script that will remove the binaries and source code from the system area, stop the queueing daemon, and restore the system to the pre-installation state.

45

Page 46
Image 46
Black Box LE3700A-R2 manual Installing the Reverse Telnet Software, Reverse Telnet for Unsupported Unix Machines

LE3700A-R2 specifications

The Black Box LE3700A-R2 is a powerful device designed to meet the demands of modern communication and data management in various environments. This advanced unit combines a multitude of cutting-edge features and technologies, making it an essential tool for professionals in fields such as IT, telecommunications, and multimedia broadcasting.

One of the key features of the Black Box LE3700A-R2 is its robust performance capabilities. It supports multiple data interfaces, allowing for seamless integration with various communication protocols. This versatility ensures that users can easily connect the device to existing systems without the hassle of compatibility issues. Furthermore, its high data throughput rate enables quick and efficient data transfer, which is crucial for time-sensitive applications.

The device is equipped with advanced security protocols designed to protect sensitive information. It employs encryption technologies that safeguard data during transmission, ensuring that unauthorized access is minimized. This focus on security makes it an ideal choice for businesses and organizations that prioritize data integrity and confidentiality.

Another notable characteristic of the LE3700A-R2 is its user-friendly interface. The intuitive design allows for easy navigation and management of the device's functionalities, making it accessible to users of varying expertise. Additionally, comprehensive documentation and support are available, further enhancing the user experience.

In terms of connectivity, the Black Box LE3700A-R2 offers a range of ports, including USB, Ethernet, and Serial connections, catering to a wide array of devices. This flexibility in connectivity options enhances its usability across different applications, from simple data storage to complex network configurations.

The Black Box LE3700A-R2 is also designed with durability in mind. Its robust construction ensures that it can withstand harsh conditions, making it suitable for use in both indoor and outdoor environments. This reliability is crucial for industries that operate in less-than-ideal conditions, such as construction sites or remote locations.

Overall, the Black Box LE3700A-R2 stands out as an exceptional piece of technology that brings together performance, security, and versatility. Its combination of advanced features and user-centric design makes it a valuable asset for professionals seeking to enhance their operational capabilities and ensure the effective management of data and communications in their respective fields.