fix bug

lemp.sh

@@ -51,7 +51,7 @@ ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 # /etc/sysctl.conf
 sed -i 's/net.ipv4.tcp_syncookies.*$/net.ipv4.tcp_syncookies = 1/g' /etc/sysctl.conf
 [ -z "`grep 'fs.file-max' /etc/sysctl.conf`" ] && cat >> /etc/sysctl.conf << EOF
-fs.file-max=65535
+fs.file-max = 65535
 net.ipv4.tcp_fin_timeout = 30
 net.ipv4.tcp_tw_reuse = 1
 net.ipv4.tcp_tw_recycle = 0
@@ -61,6 +61,7 @@ net.ipv4.tcp_max_tw_buckets = 20000
 net.ipv4.route.gc_timeout = 100
 net.ipv4.tcp_syn_retries = 1
 net.ipv4.tcp_synack_retries = 1
+net.ipv4.tcp_syncookies = 1
 net.core.somaxconn = 65535
 net.core.netdev_max_backlog = 262144
 net.ipv4.tcp_timestamps = 0