CentOS Question posted in
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Add a permanent command on boot with centos 7

I want, when my centos 7 server boots, to run

echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse

because I want to reuse open connections.

Systemd is allready installed, but my command is not a service, just a one time execution command at startup.

How can I run automatically this command at startup ? Thanks !

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2

Answers


  1. 0

    Add your command to

     /etc/rc.d/rc.local

    and it will run at startup.

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  2. 0

    The correct way to make the changes persistent is to edit the file:

    /etc/sysctl.conf

    After the change, type:

    sysctl -p

    This will load the changes into the current session. The fact that the settings are in /etc/sysctl.conf will ensure that they load on reboots.

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