[CentOS] rsyslog.conf - why the "-" in this entry? mail.* -/var/log/maillog
Steven Tardy
sjt5 at its.msstate.edu
Tue Jun 5 14:56:59 UTC 2012
On 06/05/2012 09:30 AM, James B. Byrne wrote:
> In dealing with an unrelated issue I came across this in rsyslog.conf.
> mail.* -/var/log/maillog
> Why is there a "-" before /var/log/maillog?
man syslog.conf
You may prefix each entry with the minus ‘‘-’’ sign to omit
syncing the
file after every logging. Note that you might lose
information if the
system crashes right behind a write attempt. Nevertheless
this might
give you back some performance, especially if you run programs
that use
logging in a very verbose manner.
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