Remote Procedure Call (RPC) is a protocol which works in the session layer of the OSI model and in the Application Layer of TCP/IP model. It is useful in developing network applications which need services from a remote computer in the network. With the help of Remote Procedure Call, the programmer need not worry about the complex structure of OSI layer.
1. RPC is working as a client-server model
2. RPC uses different Authentication methods to validate the client request.
3. RPC protocol is independent of transport layer protocols.
4. RPC requests can use both UDP and TCP but prefer UDP format
In RPC the client issues requests for certain services from the server through the network. A client is a computer or process that accesses the services or resources of another processor computer on the network. A server is a computer that provides services and resources, and that implements network services. In short, the requesting program is a client and the service-providing program is the server. According to the results of RPC, the authentication server may reject or accept the request.
The major Remote Procedure Call (RPC) authentication methods are provided below.
1 Null Authentication
Often calls must be made where the caller does not know who he is or
the server does not care who the caller is.
2 UNIX Authentication
The caller of a remote procedure may wish to identify himself as he
is identified on a UNIX(tm) system.
3 DES Authentication
DES Authentication is the advanced form of UNIX Authentication.
UNIX command to display the RPC programs that are registered on a specified computer.
rpcinfo -p
Reference:
http://www.faqs.org/rfcs/rfc1050.html
Working of Remote Procedure Call
1. RPC is working as a client-server model
2. RPC uses different Authentication methods to validate the client request.
3. RPC protocol is independent of transport layer protocols.
4. RPC requests can use both UDP and TCP but prefer UDP format
In RPC the client issues requests for certain services from the server through the network. A client is a computer or process that accesses the services or resources of another processor computer on the network. A server is a computer that provides services and resources, and that implements network services. In short, the requesting program is a client and the service-providing program is the server. According to the results of RPC, the authentication server may reject or accept the request.
Remote Procedure Call(RPC) Authentications
The major Remote Procedure Call (RPC) authentication methods are provided below.
1 Null Authentication
Often calls must be made where the caller does not know who he is or
the server does not care who the caller is.
2 UNIX Authentication
The caller of a remote procedure may wish to identify himself as he
is identified on a UNIX(tm) system.
3 DES Authentication
DES Authentication is the advanced form of UNIX Authentication.
UNIX command to display the RPC programs that are registered on a specified computer.
rpcinfo -p
Reference:
http://www.faqs.org/rfcs/rfc1050.html
