- Read and print logs from a socket
Most of the main utilities are able to write their log files to a Unix Domain
socket if configured that way. watchgnupg
is a simple listener for such
a socket. It ameliorates the output with a time stamp and makes sure that long
lines are not interspersed with log output from other utilities. This tool is
not available for Windows.
is commonly invoked as
watchgnupg --force $(gpgconf --list-dirs socketdir)/S.log
understands these options:
- Delete an already existing socket file.
- --tcp n
- Instead of reading from a local socket, listen for connects on TCP port
- Do not print the date part of the timestamp.
- Enable extra informational output.
- Print version of the program and exit.
- Display a brief help page and exit.
$ watchgnupg --force --time-only $(gpgconf --list-dirs socketdir)/S.log
This waits for connections on the local socket (e.g. ‘
’) and shows all log entries. To make this
work the option log-file
needs to be used with all modules which logs
are to be shown. The suggested entry for the configuration files is:
If the default socket as given above and returned by "echo $(gpgconf
--list-dirs socketdir)/S.log" is not desired an arbitrary socket name can
be specified, for example ‘
’. For debugging purposes it is
also possible to do remote logging. Take care if you use this feature because
the information is send in the clear over the network. Use this syntax in the
You may use any port and not just 4711 as shown above; only IP addresses are
supported (v4 and v6) and no host names. You need to start watchgnupg
with the tcp
option. Note that under Windows the registry entry
can be used to change the
default log output from stderr
to whatever is given by that entry.
However the only useful entry is a TCP name for remote debugging.
The full documentation for this tool is maintained as a Texinfo manual. If GnuPG
and the info program are properly installed at your site, the command
should give you access to the complete manual including a menu structure and an