Re: Settings in /etc/sysctl.conf not sticking at boot
- From: "Jonathan Underwood" <jonathan.underwood@xxxxxxxxx>
- Date: Sat, 29 Sep 2007 23:56:29 +0100
On 29/09/2007, Jonathan Underwood <jonathan.underwood@xxxxxxxxx> wrote:
Hi,
On a fully updated F7 box I have added this line to /etc/sysctl.conf:
net.netfilter.nf_conntrack_tcp_be_liberal = 1
However, on reboot, this seems to have no effect. Eg. On a freshly
rebooted system:
# cat /proc/sys/net/netfilter/nf_conntrack_tcp_be_liberal
0
And so that setting doesn't seem to have been applied. Without editing
that file, if I do:
# /sbin/sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
net.netfilter.nf_conntrack_tcp_be_liberal = 1
then, the setting sticks:
# cat /proc/sys/net/netfilter/nf_conntrack_tcp_be_liberal
1
For the benefit of the archives, and anyone in the future searching
for this issue - the reason is that, during boot, sysctl is called by
the /etc/init.d/network service. Any values in /etc/sysctl.conf set
for kernel modules not loaded at that point will be ignored.
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- Settings in /etc/sysctl.conf not sticking at boot
- From: Jonathan Underwood
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