# phpman > perldoc > Log::Log4perl::Appender::Socket

## NAME
    [Log::Log4perl::Appender::Socket](https://www.chedong.com/phpMan.php/perldoc/Log%3A%3ALog4perl%3A%3AAppender%3A%3ASocket/markdown) - Log to a socket

## SYNOPSIS
        use [Log::Log4perl::Appender::Socket](https://www.chedong.com/phpMan.php/perldoc/Log%3A%3ALog4perl%3A%3AAppender%3A%3ASocket/markdown);

        my $appender = [Log::Log4perl::Appender::Socket](https://www.chedong.com/phpMan.php/perldoc/Log%3A%3ALog4perl%3A%3AAppender%3A%3ASocket/markdown)->new(
          PeerAddr => "server.foo.com",
          PeerPort => 1234,
        );

        $appender->log(message => "Log me\n");

## DESCRIPTION
    This is a simple appender for writing to a socket. It relies on [IO::Socket::INET](https://www.chedong.com/phpMan.php/perldoc/IO%3A%3ASocket%3A%3AINET/markdown) and offers all
    parameters this module offers.

    Upon destruction of the object, pending messages will be flushed and the socket will be closed.

    If the appender cannot contact the server during the initialization phase (while running the
    constructor "new"), it will "die()".

    If the appender fails to log a message because the socket's "send()" method fails (most likely
    because the server went down), it will try to reconnect once. If it succeeds, the message will
    be sent. If the reconnect fails, a warning is sent to STDERR and the "log()" method returns,
    discarding the message.

    If the option "silent_recovery" is given to the constructor and set to a true value, the
    behaviour is different: If the socket connection can't be established at initialization time, a
    single warning is issued. Every log attempt will then try to establish the connection and
    discard the message silently if it fails. If you don't even want the warning, set the
    "no_warning" option to a true value.

    Connecting at initialization time may not be the best option when running under Apache1
    Apache2/prefork, because the parent process creates the socket and the connections are shared
    among the forked children--all the children writing to the same socket could intermingle
    messages. So instead of that, you can use "defer_connection" which will put off making the
    connection until the first log message is sent.

## EXAMPLE
    Write a server quickly using the [IO::Socket::INET](https://www.chedong.com/phpMan.php/perldoc/IO%3A%3ASocket%3A%3AINET/markdown) module:

        use [IO::Socket::INET](https://www.chedong.com/phpMan.php/perldoc/IO%3A%3ASocket%3A%3AINET/markdown);

        my $sock = [IO::Socket::INET](https://www.chedong.com/phpMan.php/perldoc/IO%3A%3ASocket%3A%3AINET/markdown)->new(
            Listen    => 5,
            LocalAddr => 'localhost',
            LocalPort => 12345,
            Proto     => 'tcp');

        while(my $client = $sock->accept()) {
            print "Client connected\n";
            while(<$client>) {
                print "$_\n";
            }
        }

    Start it and then run the following script as a client:

        use [Log::Log4perl](https://www.chedong.com/phpMan.php/perldoc/Log%3A%3ALog4perl/markdown) qw(:easy);

        my $conf = q{
            log4perl.category                  = WARN, Socket
            log4perl.appender.Socket           = [Log::Log4perl::Appender::Socket](https://www.chedong.com/phpMan.php/perldoc/Log%3A%3ALog4perl%3A%3AAppender%3A%3ASocket/markdown)
            log4perl.appender.Socket.PeerAddr  = localhost
            log4perl.appender.Socket.PeerPort  = 12345
            log4perl.appender.Socket.layout    = SimpleLayout
        };

        [Log::Log4perl](https://www.chedong.com/phpMan.php/perldoc/Log%3A%3ALog4perl/markdown)->init(\$conf);

        [sleep(2)](https://www.chedong.com/phpMan.php/man/sleep/2/markdown);

        for(1..10) {
            ERROR("Quack!");
            [sleep(5)](https://www.chedong.com/phpMan.php/man/sleep/5/markdown);
        }

## LICENSE
    Copyright 2002-2013 by Mike Schilli <<m@perlmeister.com>> and Kevin Goess <<cpan@goess.org>>.

    This library is free software; you can redistribute it and/or modify it under the same terms as
    Perl itself.

## AUTHOR
    Please contribute patches to the project on Github:

        <http://github.com/mschilli/log4perl>

    Send bug reports or requests for enhancements to the authors via our

    MAILING LIST (questions, bug reports, suggestions/patches): <log4perl-devel@lists.sourceforge.net>

    Authors (please contact them via the list above, not directly): Mike Schilli
    <<m@perlmeister.com>>, Kevin Goess <<cpan@goess.org>>

    Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens Berthold, Jeremy Bopp,
    Hutton Davidson, Chris R. Donnelly, Matisse Enzer, Hugh Esco, Anthony Foiani, James FitzGibbon,
    Carl Franks, Dennis Gregorovic, Andy Grundman, Paul Harrington, Alexander Hartmaier David Hull,
    Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter, Brett Rann, Peter Rabbitson, Erik
    Selberg, Aaron Straup Cope, Lars Thegler, David Viner, Mac Yang.