I ran a netstat on some of my apache server hosts looking for UDP sockets, but could not find any. The only UDP sockets I could see were on the NTP port. Then I tried lsof and could not find anything concerning httpd either. I am therefore wondering whether you could possibly have a module that I do not have or use a command that opens a UDP connection for some reason, for example a piped log to transfer logs to a remote server (although doing that over UDP seems strange). -ascs PS: I am using Apache 2.0.54, and the following is an exhaustive list of all the modules, both compiled-in and dynamically linked: http_core.c mod_access.c mod_alias.c mod_autoindex.c mod_cache.so mod_cgid.c mod_deflate.so mod_dir.c mod_disk_cache.so mod_env.c mod_expires.so mod_filter.so mod_headers.c mod_info.so mod_log_config.c mod_mime.c mod_negotiation.c mod_proxy.c mod_rewrite.c mod_setenvif.c mod_so.c mod_ssl.so mod_status.c mod_userdir.c proxy_connect.c proxy_ftp.c proxy_http.c worker.c -----Original Message----- From: Richard de Vries [mailto:richard_devries@xxxxxxxxx] Sent: Thursday, July 06, 2006 3:25 PM To: users@xxxxxxxxxxxxxxxx Subject: RE: [users@httpd] Apache listening for UDP requests? I haven't had a whole lot of luck yet sniffing UDP packets. I was able to get the sniffer runner, but there is hardly any UDP traffic. What I think is happening, is that these UDP ports are being used to communicate over the loopback (localhost) adapter. DNS resolution is disabled on these Apache instances, so that's definately not it either. The number of UDP ports seems to climb the longer Apache is running. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx