Question

35

I'm getting Fsync failed error. Why?

rated 0 times [ 35] [ 0] / answers: 1 / hits: 98818 / 2 Years ago, wed, september 21, 2022, 6:23:22

I tried to change the tcp timestamps in Ec2 instance (which is Ubuntu 12.04). I opened up the editor and changed the value 1 from 0. And when I tried to save the file I get this error:

/proc/sys/net/ipv4/tcp_timestamps" E667: Fsync failed

I'm very new to Ubuntu. Can anyone help me in this out?

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scusaper

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answered 2 Years ago etzelmortg · Accepted Answer

Your editor is probably doing funny things to that file (files in /proc are not actual files, they're an interface to lower-levels of the operating system). While the change is probably working okay, the usual way of updating things in proc is directly with a shell command, like:

echo 1 | sudo dd of=/proc/sys/net/ipv4/tcp_timestamps

If you want this setting to be applied every time you boot, create a file called /etc/sysctl.d/tcp-timestamps.conf, containing the following:

net.ipv4.tcp_timestamps = 1