Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
I am trying to enable syn cookies in a server, but I can't.
root@server [~]# echo '1' > /proc/sys/net/ipv4/tcp_syncookies
root@server [~]# cat /proc/sys/net/ipv4/tcp_syncookies
What is wrong, and how could I enable syn cookies?
net.ipv4.tcp_syncookies = 0
Required, but never shown
7 years, 6 months ago