SSH without inputing password

[Kevin Faulkner]

tech user wrote:
> Hello everyone,
> 
> When I login to a linux host with ssh like:
> 
> ssh 12.34.56.78
> 
> It requires me to input the password.
> I'm tired to input that long passwd again and again.
> 
> Also the remote system's openssh doesn't support public key auth.
> So please don't suggest me to use Public Key.
> 
> So how can I login into that system by ssh without inputing the passwd?
> 
> for example,when I say,
> 
> ssh 12.34.56.78
> 
> I will go into the remote system promptly.
> 
> Thanks.
> 
> B. Regards,
> -Ken
You could utilize the /etc/shosts file