Why restarting firewalld restores sysctl setting nf_conntrack_max to default ?

Solution In Progress - Updated -

Issue

  • Restarting firewalld restores the sysctl setting net.netfilter.nf_conntrack_max to default 65536
# cat /proc/sys/net/netfilter/nf_conntrack_max
65536

# sysctl -p
net.netfilter.nf_conntrack_max = 131072

# cat /proc/sys/net/netfilter/nf_conntrack_max
131072

# systemctl restart firewalld

# cat /proc/sys/net/netfilter/nf_conntrack_max
65536

Environment

  • Red Hat Enterprise Linux 7.1
  • firewalld

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