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893-741-B
A4-7
The Port Server and Rotaries
The Model 5390 server creates a new virtual CLI connection for each request it receives. You can
limit the number of virtual CLI connections the Model 5390 server creates using the max_vcli
Model 5390 parameter. The only other limit on the number of virtual CLI connections created is
system resources.
Security for the Port Server
The port server security provides the option of configuring host-based security, local password
protection, or both. The host-based security for the port server normally requires a user name and
password. Local password protection on the port server requires only a password.
As with security on CLI connections, the local password protection can be used as the sole security
mechanism or as a backup to host-based security for those occasions when the security servers are
not available.
With port server security, the port server invokes the security mechanism when the user requests
access to a specific port or rotary at the port server prompt. User validation occurs before the user
is connected to the port to ensure that the user is authorized to connect to the selected port. If the
user is not authorized, the port server notifies the user and prompts for another port.
The following example shows the supplied user validation for port server security.
% telnet 5390_01
Trying...
Connected to 5390_01.
Escape character is "^]".
Rotaries Defined:
modem_1200 1–3,5
modem_2400 4,7
cli
Enter Annex port name or number: modem_1200
Annex username: kate
Annex password:
Permission granted.
Attached to port 1.
For camp-on, user validation occurs when a port becomes available. If the name or password is
incorrect, the user is returned to the port identification prompt.
To use host-based security with the port server:
•
Set the Model 5390 parameter enable_security to Y.
•
Set the port parameter port_server_security to Y.
Summary of Contents for 5390
Page 28: ...893 741 B Figures xxviii ...
Page 44: ...893 741 B Preface xliv ...
Page 45: ......
Page 48: ......
Page 60: ...A1 12 893 741 B Introduction to the Model 5390 Server ...
Page 106: ...A3 18 893 741 B Configuring Ports ...
Page 142: ...A5 12 893 741 B Printers ...
Page 152: ...A6 10 893 741 B Modems ...
Page 168: ...A7 16 893 741 B Serial Line Internet Protocol SLIP ...
Page 224: ...A9 38 893 741 B Internetwork Packet Exchange IPX Protocol ...
Page 258: ...A11 12 893 741 B Dial up Networking ...
Page 289: ...893 741 B A12 31 Internet Protocol IP Routing that are possible ...
Page 506: ...A15 86 893 741 B Using Model 5390 Security ...
Page 507: ......
Page 544: ...B1 36 893 741 B Network Administration ...
Page 574: ...B2 30 893 741 B Simple Network Management Protocol SNMP ...
Page 575: ......
Page 606: ...C1 30 893 741 B na Commands ...
Page 676: ...C2 70 893 741 B Configuration Parameters ...
Page 772: ...C3 96 893 741 B Using the CLI Commands ...
Page 794: ...C5 12 893 741 B Network Protocols ...
Page 795: ......
Page 796: ... Appendix D1 Software Reference Part D Appendixes ...