Bypassing password in remote login

Sulman Shah · 01-17-2007, 12:21 AM

When I run my program for logining remotely it's prompting me for password, is there any way so, that I can use in my source code to login to a host2 from host1 just by bypassing password.

>>>>>>system("user@host1");

In the terminal it will ask me for password which looks like

>>>>>>>user@host1's password:

So my question is can i do it in my code? I mean to say entering password and then login remotely.

matthewg42 · 01-17-2007, 12:35 AM

If you are using ssh, you can do it by setting up public key authentication.

Sulman Shah · 01-17-2007, 04:42 AM

but again we will be prompted for the passphrase instead of password. Can we enter passphrase in our source code? if yes then how?

matthewg42 · 01-17-2007, 08:25 AM

No, using public key auth you don't need to provide a pass phrase. You can optionally have a pass phrase to locally protect your private key, and if you have this, you need to provide this. However, you can either not have a local key-protecting passphrase, or you can cache it using ssh-agent, in which case you only enter it once, and then it is memory until the agent process is reset.