Hi all It is my very first email to community asking help and advices to Apache system administration. I have worked with Apache since 2004 on CentOS distribution most of the time. Currently I am worried about MaxClients. I work today with Apache 2.2.16 with prefork and KeepAlives disabled. I can't explain that, I should do some test to verify Apache has more performance with KeepAlives on , it is something historic I could say. I know there are differences between prefork and mpm but I think it is a high level for me today. Anyway I am working to discover how discover when Apache reach MaxClients. And I having different sensations depending which command I execute on bash. Which I try to explain is: -bash-3.2# netstat -anp |grep :80|wc -l 2 Connections (whatever type of connections) against port 80. However, one thing is the connections and other the processes of Apache: -bash-3.2# ps axuf |grep httpd root 15427 0.0 0.0 5184 696 pts/0 S+ 12:48 0:00 \_ grep httpd root 17477 0.0 1.1 45216 8568 ? Ss 11:51 0:00 /usr/sbin/httpd apache 17480 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ /usr/sbin/httpd apache 17481 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ /usr/sbin/httpd apache 17482 0.0 0.5 45216 4536 ? S 11:51 0:00 \_ /usr/sbin/httpd apache 17483 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ /usr/sbin/httpd apache 17484 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ /usr/sbin/httpd apache 17485 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ /usr/sbin/httpd apache 17486 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ /usr/sbin/httpd apache 17487 0.0 0.5 45216 4540 ? S 11:51 0:00 \_ /usr/sbin/httpd And then my doubt. In working environment, to be able to control "Clients" of Apache, to avoid or maintain a monitoring of MaxClients reached, how to monitor? Processes or Connections? I think will be something more closer to processes, using ps, than something related with Tcp connections and netstat. Well, any advices will be welcome. Thanks! Rubén Ortiz Administrador de Sistemas Edificio nova gran via Av. Gran Vía, 16-20, 2ª planta | 08902 L'Hospitalet de Llobregat (Barcelona) T 902 999 343 | F 902 999 341 www.grupoitnet.com --------------------------------------------------------------------- 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