difference between ssh and telnet?

phpsharma

Hi all,

i am new to Linux. whats the exact difference between ssh and telnet?.

sharma

drew010

telnet is a terminal emulator, meaning you can login to a remote machine and get a command line via port 23. telnet can also access other ports and services and let you send commands to the server, such as a smtp server or pop mail server. ssh allows secure encrypted access to a remote machine via port 22. mostly the difference is the encryption, because the end result of the programs are the same, access to the command line of another machine.

you can do
telnet host.com
which will attempt to connect to the telnet server on the host.com server
you can also do
telnet mail.host.com 25
and it will connect to the smtp server and let you send commands to it.

ssh will only connect to sftp or ssh.

http://www.pcwebopedia.com/TERM/S/SSH.html
http://www.pcwebopedia.com/TERM/T/Telnet.html

those links should give a much better explanation than i did 😉

phpsharma

Hi drew/all,

I have site. everything is quite right till 30 mins back. all of sudden ftp is not connecting. I called up webhosting support. They look into it and said "All the server directory permissions are changed to 777. so you will never get into server and can't take back what you have on server." Is this correct?. Please help me. i am in a critical position. please guide me

can i setup other ftp a/c?
sharma

drew010

if everything is chmod 777 that doesn't mean you cant get it back or login. they are totally wrong. and as root, they should be able to zip up your directory and send it to you (that is if they know how).
try creating another ftp account.