Salve,
ho un server Apache che ha molti errori di questo tipo:

[Wed May 25 12:31:52 2011] [error] (131)Connection reset by peer: proxy: prefetch request body failed to 10.204.161.92:8001 (poaci49v.rete.poste) from 10.160.56.64 ()

[Wed May 25 12:33:07 2011] [error] [client 10.42.76.1] request failed: error reading the headers, referer: http://crm.rete.poste:8080/webdynpro...er;jsessionid=(............ecc......

[Wed May 25 12:31:57 2011] [error] [client 10.135.23.100] request failed: error reading the headers, referer: http://crm.rete.poste:8080/irj/servl...te/prtroot/pcd!3aportal_content!2fevery_user!2fgeneral!2fdefault Desktop!2fframeworkPages!2fframeworkpage!2fcom.sap .portal.innerpage?NavPathUpdate=false&windowId=WID 130631

Il server e' il seguente (fa praticamente da proxy...):
Server version: Apache/2.2.17 (Unix)
Server built: Apr 14 2011 12:10:02
Server's Module Magic Number: 20051115:25
Server loaded: APR 1.4.2, APR-Util 1.3.10
Compiled using: APR 1.4.2, APR-Util 1.3.10
Architecture: 32-bit
Server MPM: Worker
threaded: yes (fixed thread count)
forked: yes (variable process count)
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/worker"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_PROC_PTHREAD_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=128
-D HTTPD_ROOT="/opt/coolstack/apache.test"
-D SUEXEC_BIN="/opt/coolstack/apache.test/bin/suexec"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"