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HP OpenView Operations Administrator's Reference - filibeto.org

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About OVO Security<br />

About Network Security<br />

490<br />

Example of RPC Authentication in OVO<br />

Figure 12-1 uses the example of OVO message transmission to illustrate<br />

the RPC client-server authentication process.<br />

Figure 12-1 DCE RPC Client-server Authentication Process<br />

opcctla<br />

opcctlm<br />

VO RPC<br />

Check<br />

incoming<br />

requests<br />

Login<br />

Read password<br />

for login<br />

Key file<br />

DCE<br />

security<br />

server<br />

Key file<br />

In this example, the following occurs:<br />

Read password<br />

for login 1<br />

Login<br />

1. RPC client (opcmsga) reads its password from the key file<br />

2. RPC client logs in, gets a login context, and obtains a security server<br />

ticket<br />

3. RPC client sends a RPC request<br />

4. RPC server (opcmsgr) checks the ticket with the password in the key<br />

file<br />

Configuring RPC Authentication in OVO<br />

opcmsga<br />

opcmsgr<br />

You can configure OVO to carry out the authentication check for the<br />

following:<br />

❏ At the RPC connection to a server<br />

❏ At the beginning of each RPC client-server call<br />

❏ For each network packet<br />

2<br />

4<br />

OVO RPC 3<br />

Check incoming<br />

requests<br />

Managed<br />

Node<br />

Management<br />

Server<br />

Chapter 12

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