AboutDenis Mello Expertise I understand the principles and the application of Network managament, from the OSI schema to mechanisms of detection, intrusion, security issues and vulnerabilities, how-to-attack and defend from crackers. I always look to be updated with the latest security holes.
I also know OS like Windows 2k, 2k3, Linux, HP-UX and Solaris as best as other platforms.
Experience
Past/Present clients General Motors, VIVO, Petrobras, OptiGlobe, Brazil Telecom, Hewlett-Packard.
Question how about telnet..what the differences of telnet with FTP?
Answer Hi again Mat.
Telnet is a protocol like FTP but unlike FTP it is intended to control a machine remotely (like you have an access to other machine in order to run programs, manage the environment). Remember: FTP is only for transfer of files. You move through directories and download or upload documents and files. You can not manage, install, configure anything through it.
Example: you can configure your box (Windows 2000/XP) to be a Telnet server. I could, since I have your IP, authorization and login credential, to log on in your computer and do somethings. There is a restriction that is Telnet is not GUI based, so the interface is pretty much similar to DOS.
* Telnet is not a secure protocol and many companies either do not use or restrict the access. They use SSH instead.
Google for telnet server to search some and connect to perform some tests. There are some available. It is good to learn.
Definition:
A terminal emulation program for TCP/IP networks such as the Internet. The Telnet program runs on your computer and connects your PC to a server on the network. You can then enter commands through the Telnet program and they will be executed as if you were entering them directly on the server console. This enables you to control the server and communicate with other servers on the network. To start a Telnet session, you must log in to a server by entering a valid username and password. Telnet is a common way to remotely control Web servers.
