Cisco WS-C4003 Software Guide - Page 277
Monitoring User Sessions
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Chapter 19 Checking Port Status and Connectivity Monitoring User Sessions Note If you are using Kerberos to authenticate to the switch, you will not be able to use the secure shell encryption feature. To enable SSH on the switch, perform this task in privileged mode: Task Create the RSA host key. Command set crypto key rsa nbits [force] This example shows how to create the RSA host key: Console> (enable) set crypto key rsa 1024 Generating RSA keys.... [OK] Console> (enable) The nbits value specifies the RSA key size; the valid key size range is 512 to 2048 bits. A key size with a larger number provides higher security but takes longer to generate. Monitoring User Sessions You can display the currently active user sessions on the switch using the show users command. The command output displays all active console port and Telnet sessions on the switch. To display the active user sessions on the switch, perform this task in privileged mode: Task Display the currently active user sessions on the switch. Command show users [noalias] This example shows the output of the show users command when local authentication is enabled for console and Telnet sessions (the asterisk [*] indicates the current session): Console> (enable) show users Session User Location console telnet sam-pc.bigcorp.com * telnet jake-mac.bigcorp.com Console> (enable) This example shows the output of the show users command when TACACS+ authentication is enabled for console and Telnet sessions: Console> (enable) show users Session User Location console sam telnet jake jake-mac.bigcorp.com telnet tim tim-nt.bigcorp.com * telnet suzy suzy-pc.bigcorp.com Console> (enable) 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 19-7
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