How can I increase the value of somaxconn?

Question

I can check its value by cat /proc/sys/net/core/somaxconn,

is it OK if I change it simply by echo 1024 > /proc/sys/net/core/somaxconn?

Eduardo Ivanec · Accepted Answer · 2011-05-19 10:22:05Z

83

Yes. Alternatively, you can use:

sysctl -w net.core.somaxconn=1024

Add net.core.somaxconn=1024 to /etc/sysctl.conf for it to become permanent (be reapplied after booting).

answered May 19, 2011 at 10:22

Eduardo Ivanec

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so both /proc/sys/net/core/somaxconn and /etc/sysctl.conf are persistent?
– linux_user
May 20, 2011 at 1:17
11

@linux_user - no, only modifying /etc/sysctl.conf is persistent. /proc is not a "real" filesystem, only a filesystem interface to the kernel.
– Eduardo Ivanec
May 20, 2011 at 4:11

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freethinker · Accepted Answer · 2011-05-19 10:28:31Z

2

yes /proc/sys/net/core/somaxconn is writable if you have the permissions to do so.

answered May 19, 2011 at 10:28

freethinker

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You would have to modify /etc/sysctl.conf as root to make it persistent. /proc is not a real file system
– Ganesh Krishnan
Mar 16, 2015 at 0:53

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