Error logs on UNIX and Linux systems

IBM® MQ on UNIX and Linux® systems uses a number of error logs to capture messages concerning the operation of IBM MQ itself, any queue managers that you start, and error data coming from the channels that are in use. The location the error logs are stored in depends on whether the queue manager name is known and whether the error is associated with a client.

If the queue manager name is known:
```
/var/mqm/qmgrs/QMgrName/errors
```
If the queue manager name is not known (for example when there are problems in the listener or SSL handshake):
```
/var/mqm/errors
```

When a client is installed, and there is a problem in the client application, the following log is used:

If an error has occurred with a client application:
```
/var/mqm/errors/
```