Monitoring the Current Status of the SSH Server
Purpose
Display the current state of the SSH server. You can also use the detail keyword to display the encryption and MAC algorithm lists for the client and server. For each active session, detail shows the version of SSH running on the client and the algorithms in use for encryption and message authentication.
Action
To display the current state of the SSH server:
host1#show ip ssh detail
SSH Server version: SSH-2.0-2.0.12
SSH Server status: enabled, up since THU JUL 24 2008 16:01:17 UTC
supported encryption, inbound: 3des-cbc,blowfish-cbc,twofish-cbc supported encryption, outbound: 3des-cbc,blowfish-cbc,twofish-cbc supported MAC, inbound: hmac-sha1,hmac-sha1-96,hmac-md5 supported MAC, outbound: hmac-sha1,hmac-sha1-96,hmac-md5
user authentication: enabled user authentication protocol: TACACS+
retry limit: 20 sleep period: 600 timeout: 600
connections since last system reset: 4 out of 4 attempts connections since daemon startup: 4 out of 4 attempts
active sessions: 1
id | username | host | uptime (d:h:m:s) | client version | ciphers inbound/outbound | MAC inbound/outbound |
|---|---|---|---|---|---|---|
3 | mcarr | 10.0.0.145 | 0:00:00:19 | SSH-2.0-2.0.12 F-SECURE SSH | 3des-cbc/3des-cbc | hmac-md5/hmac-md5 |
 | Note: To view failed connection attempts and other protocol errors logged at the error severity level, use the show log data command. |
Meaning
Table 1 lists the show ip ssh detail command output fields.
Table 1: show ip ssh detail Output Fields
Field Name | Field Description |
|---|---|
daemon status | Indicates whether the SSH server is enabled; if so, how long it has been up |
supported encryption, inbound | Encryption algorithms supported inbound from the client |
supported encryption, outbound | Encryption algorithms supported outbound to the client |
supported MAC, inbound | Message authentication code algorithms supported inbound from the client |
supported MAC outbound | Message authentication code algorithms supported outbound to the client |
connections since last system reset | Number of connections made through SSH since the last time the system was reset |
connections since daemon startup | Number of connections made since the SSH server was enabled |
active sessions | Number of SSH sessions currently active:
|
