| Message Code | PIX-3-315004 |
| Severity | Error |
| Description | Fail to establish SSH session because RSA host key retrieval failed. |
| Explanation | The Cisco ASA could not find the Cisco ASA RSA host key, which is required for establishing an SSH session. The Cisco ASA host key may be absent because it was not generated or because the license for this Cisco ASA does not allow DES or 3DES. |
| User Action | From the console, enter the show ca mypubkey rsa command to verify that the Cisco ASA RSA host key is present. If not, also enter the show version command to check whether the Cisco ASA license allows DES or 3DES. |
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