{{tag>Brouillon Réseau Web}} # Linux pile TCP/IP TIME_WAIT Apache Voir * `man netstat` * mode Prefork Vs Worker ~~~bash ps -efL | grep http | wc -l ~~~ ~~~bash netstat -nat | sed '2d' | awk '{print $6}' | sort | uniq -c | sort -n ~~~ ~~~ 1 Foreign 4 SYN_RECV 12 LISTEN 131 ESTABLISHED 191 CLOSE_WAIT 270 TIME_WAIT ~~~ Source: https://www.skyminds.net/serveur-dedie-reduire-les-connexions-time_wait-des-sockets-et-optimiser-tcp/ Ou mieux ~~~ # ss -s Total: 281 (kernel 3060) TCP: 10 (estab 4, closed 0, orphaned 0, synrecv 0, timewait 0/0), ports 0 Transport Total IP IPv6 * 3060 - - RAW 0 0 0 UDP 2 2 0 TCP 10 7 3 INET 12 9 3 FRAG 0 0 0 ~~~ Voir commande **ss** ~~~bash ss -t4 state time-wait ss -t4 state established ~~~ Pile TCP/IP ~~~ cat /proc/sys/net/ipv4/tcp_fin_timeout 0 cat /proc/sys/net/ipv4/tcp_tw_recycle 0 cat /proc/sys/net/ipv4/tcp_tw_reuse 60 ~~~ ~~~bash echo 30 > /proc/sys/net/ipv4/tcp_fin_timeout echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse ~~~ ~~~ 1 Foreign 1 SYN_RECV 12 LISTEN 29 CLOSE_WAIT 58 ESTABLISHED 217 TIME_WAIT ~~~