Unable to add parameter to /proc
I am trying to increase the ip_conntrack_max value in /proc.
# echo 65536 > /proc/sys/net/ipv4/ip_conntrack_max
-bash: /proc/sys/net/ipv4/ip_conntrack_max: No such file or directory
# sysctl -w net.ipv4.ip_conntrack_max=65536
error: 'net.ipv4.ip_conntrack_max' is an unknown key
and finally I tried to manually add this key to sysctl.conf
none of them worked. I have another box with the same setup (same OS and Kernel version) and it has this value present in /proc (I did not setup/install these boxes).
anything else I overlooked?