What are the different ways to login to a remote server?

[phpsharma]

What are the different ways to login to a remote server? Explain the means, advantages and disadvantages?

Thanks in advance

bye
sharma

[piersk]

When you say login, do you mean so you have shell access?

Well, there are two main ways:

Telnet: very insecure since it sends everything you type (inc usernames and passwords) in plain, unencrypted text.

ssh: far more secure (use the ssh2 protocol since the first one had a nasty flaw in it). This encrypts everything before sending it.

[dalecosp]

And we can talk history: there was rlogin ... mostly replaced by ssh now, right?