Ahh, that does explain something. I'll give it a go and see if it works. Thanks Ian
Ian Dykes Software Developer Esendex Ltd T: +44 (0)115 852 5762 F: +44 (0)115 852 5757 Email: [EMAIL PROTECTED] Web: www.esendex.com Blog: http://devproj20.blogspot.com/ Esendex: Connect and Communicate -----Original Message----- From: Walden H. Leverich [mailto:[EMAIL PROTECTED] Sent: 25 October 2007 16:13 To: Log4NET User Subject: RE: UdpAppender uses UdpClient? Are you setting the LocalPort for the RemoteSyslogAppender? You shouldn't be. In the InitializeClientConnection of the UdpAppender you should see: if (this.LocalPort == 0) { this.Client = new UdpClient(); } else { this.Client = new UdpClient(this.LocalPort); } If localport is 0 then the client is created w/out a port, so you should get a random (and unused) one. If you've set the local port, then yes, the second attempt to open will fail since you've already bound something to that port. -Walden -- Walden H Leverich III Tech Software (516) 627-3800 x3051 [EMAIL PROTECTED] http://www.TechSoftInc.com Quiquid latine dictum sit altum viditur. (Whatever is said in Latin seems profound.) -----Original Message----- From: Ian Dykes [mailto:[EMAIL PROTECTED] Sent: Thursday, October 25, 2007 6:22 AM To: Log4NET User Subject: UdpAppender uses UdpClient? Hi, We're looking to use the RemoteSyslogAppender from a bunch of Windows services running on the same machine, sending log events to one server listening to one port. Looking through the source, RemoteSyslogAppender inherits from UdpAppender, and UdpAppender uses a UdpClient object. If I try to start two applications on the same machine aiming to send log event to the same remote sys log I get an error saying "only one usage of socket address is normally permitted". I've seen this exception before in my own work with sockets, and I got around it by using a Socket instead of UdpClient, but I suspect you can set the ExclusiveAddressUse property as well. I can't see a way of setting this property through the appender though. Is there any way I can use multiple UdpAppenders/RemoteSyslogAppenders sending to the same address/port on the same machine? Thanks Ian Ian Dykes Software Developer Esendex Ltd T: +44 (0)115 852 5762 F: +44 (0)115 852 5757 Email: [EMAIL PROTECTED] Web: www.esendex.com Blog: http://devproj20.blogspot.com/ Esendex: Connect and Communicate Confidentiality: This e-mail (and any associated files) is intended only for the use of log4net-user@logging.apache.org and may contain information that is confidential, subject to copyright or constitutes a trade secret. If you are not log4net-user@logging.apache.org you are hereby notified that any disclosure, copying or distribution of this message, or files associated with this message, is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and then delete it from your computer. Messages sent to and from us may be monitored. The views expressed in this message are those of the author Ian Dykes and do not necessarily represent the views of Esendex Ltd. Security: This e-mail and any attachments are believed to be free from any virus but it is the responsibility of the recipient to ensure this is so. E-mail is not a 100% secure communications medium. We recommend you observe this when e-mailing us. Esendex Ltd is a limited company registered in the UK, with company number 04217280 and having its registered office at 32a Stoney Street . Nottingham . NG1 1LL . United Kingdom. [v1.1 EN]