A connection code is a code that is added to the closed log message to provide additional information related to the connection closure. Common connection codes include:
| Connection Code | Description |
|---|---|
| A1 | Client aborts the connection. |
| B1 | Corrupt BER tag encountered. If BER tags, which encapsulate data being sent over the wire, are corrupt when they are received, a B1 connection code is logged to the access log. BER tags can be corrupted due to physical layer network problems or bad LDAP client operations, such as an LDAP client aborting before receiving all request results. |
| B2 |
BER tag is longer than the nsslapd-maxbersize attribute value. For further information about this configuration attribute, see Section 2.3.1.66, “nsslapd-maxbersize (Maximum Message Size)”.
|
| B3 | Corrupt BER tag encountered. |
| B4 | Server failed to flush data response back to client. |
| P2 | Closed or corrupt connection has been detected. |
| T1 |
Client does not receive a result within the specified idletimeout period. For further information about this configuration attribute, see Section 2.3.1.58, “nsslapd-idletimeout (Default Idle Timeout)”.
|
| T2 |
Server closed connection after ioblocktimeout period was exceeded. For further information about this configuration attribute, see Section 2.3.1.60, “nsslapd-ioblocktimeout (IO Block Time Out)”.
|
| U1 | Connection closed by server after client sends an unbind request. The server will always close the connection when it sees an unbind request. |