[root@templatetest08 emqttd]# date; netstat -s | egrep "listen|LISTEN"
Thu Jul 5 14:37:27 CST 2018
531705 times the listen queue of a socket overflowed
531714 SYNs to LISTEN sockets dropped
[root@templatetest08 emqttd]# cat /proc/sys/net/core/somaxconn
32768
[root@templatetest08 emqttd]# date; netstat -s | egrep "listen|LISTEN"
Thu Jul 5 14:37:33 CST 2018
531705 times the listen queue of a socket overflowed
531714 SYNs to LISTEN sockets dropped
[root@templatetest08 emqttd]# cat /proc/sys/net/ipv4/tcp_max_syn_backlog
16384
[root@templatetest08 emqttd]# ss -lnt
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 16960 127.0.0.1:11883 *:*
LISTEN 0 512 *:8080 *:*
LISTEN 0 128 *:4369 *:*
LISTEN 0 1024 *:8883 *:*
LISTEN 0 1024 *:8083 *:*
LISTEN 0 1024 *:8084 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 1024 *:1080 *:*
LISTEN 0 32768 *:1081 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 32768 *:1082 *:*
LISTEN 0 32768 *:1883 *:*
LISTEN 0 128 *:6369 *:*
LISTEN 0 128 :::4369 :::*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
[root@templatetest08 emqttd]#
Thu Jul 5 14:37:27 CST 2018
531705 times the listen queue of a socket overflowed
531714 SYNs to LISTEN sockets dropped
[root@templatetest08 emqttd]# cat /proc/sys/net/core/somaxconn
32768
[root@templatetest08 emqttd]# date; netstat -s | egrep "listen|LISTEN"
Thu Jul 5 14:37:33 CST 2018
531705 times the listen queue of a socket overflowed
531714 SYNs to LISTEN sockets dropped
[root@templatetest08 emqttd]# cat /proc/sys/net/ipv4/tcp_max_syn_backlog
16384
[root@templatetest08 emqttd]# ss -lnt
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 16960 127.0.0.1:11883 *:*
LISTEN 0 512 *:8080 *:*
LISTEN 0 128 *:4369 *:*
LISTEN 0 1024 *:8883 *:*
LISTEN 0 1024 *:8083 *:*
LISTEN 0 1024 *:8084 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 1024 *:1080 *:*
LISTEN 0 32768 *:1081 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 32768 *:1082 *:*
LISTEN 0 32768 *:1883 *:*
LISTEN 0 128 *:6369 *:*
LISTEN 0 128 :::4369 :::*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
[root@templatetest08 emqttd]#