SSH or Secure shell is mainly used for exchange of data in network. The protocol is mainly intended to help the exchange of data in a highly secured manner using the rules of the protocol. It is possible to get access to a remote machine and operate on it using the SSH protocol. This is referred to as SSH root access.

Through SSH root access; it is possible to login into any remote system. The user after logging can perform execution in the remote system through commands. The main advantage of SSH root access is as the name implies; it is highly secure as compared to other methods like rlogin or telnet. Even if the network is prone to insecurity, the SSG protocol ensures secure data transmission using encryption. The systems connected can exchange data through a communication of encrypted messages. Session compression is an added advantage of SSH root access. The transmission of TCP ports is possible through this channel.

The most important benefit of SSH in root access is the prevention of IP spoofing. It happens in the exchange of data in network that there can come messaged encrypted as packages and pretending to come from another host. There are host systems acting as routers. These will pretend to route data to the external network. SSH can even prevent these kinds of spoofing also.

SSH is highly secure in the sense that the hacking of password by mediator hosts can be prevented if the transaction is through SSH. The source of IP packets can be located properly and those packets which are not from trust worthy IP address can be neglected in the network. There are people who act as mediators and try to hack and spoof the data. These sorts of violations are not possible in SSH root access.

Before entering into a network to access a remote system, SSH handles authentication processes. The public/private key cryptographic methods are used to ensure the identity of the user requesting the access. As a result, there is no chance that a user can spoof as another user and login to the remote system for execution.

SSH works with the help of many configuration files. It caches the host names of all with which it had acquaintance. There is a list of the host names. This helps to make the authentication process faster. The only overhead in using SSH is the key pair generation. But since it is ultimately aimed at ensuring security, the users are benefitted much from SSH in accessing the remote system.