On 13/07/10 13:14, robert mena wrote: > I could not find any reference if the version of apache compiled for centos > 5.x has support for more than 256 clients in apache's maxclients. I think 256 is the _default_ not the maximum. >From the Apache httpd 2.2 docs <snip> For non-threaded servers (i.e., prefork), MaxClients translates into the maximum number of child processes that will be launched to serve requests. The default value is 256; to increase it, you must also raise ServerLimit. </snip> The Centos httpd does not seem to be compiled with anything that would restrict that. Others may know better .... <snip> [root at test ~]# cat /etc/redhat-release CentOS release 5.5 (Final) [root at test ~]# [root at test ~]# httpd -V Server version: Apache/2.2.3 Server built: Apr 4 2010 17:18:37 Server's Module Magic Number: 20051115:3 Server loaded: APR 1.2.7, APR-Util 1.2.7 Compiled using: APR 1.2.7, APR-Util 1.2.7 Architecture: 64-bit Server MPM: Prefork threaded: no forked: yes (variable process count) Server compiled with.... -D APACHE_MPM_DIR="server/mpm/prefork" -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_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="/etc/httpd" -D SUEXEC_BIN="/usr/sbin/suexec" -D DEFAULT_PIDLOG="run/httpd.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_LOCKFILE="logs/accept.lock" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="conf/mime.types" -D SERVER_CONFIG_FILE="conf/httpd.conf" [root at test ~]# </snip> Kal