Server User Manual

Common Connection Codes
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5.1.4. Common Connection Codes
A connection code is a code that is added to the closed log message to provide additional
information related to the connection closure.
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 2.3.1.76, “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 2.3.1.60, “nsslapd-idletimeout (Default
Idle Timeout)”.
T2 Server closed connection after
ioblocktimeout period was exceeded. For
further information about this configuration
attribute, see Section 2.3.1.62, “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.
Table 5.3. Common Connection Codes
5.2. Error Log Reference
The Directory Server error log records messages for Directory Server transactions and operations.
These may be error messages for failed operations, but it also contains general information about the
processes of Directory Server and LDAP tasks, such as server startup messages, logins and searches
of the directory, and connection information.