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you are correct, sysctl --system with an extra file under /etc/sysctl.d/ doesn't change anything.

SORRY !!! My bad. BUG / Feature / PEBKAC ???

please delete your /etc/sysctl.d/100-my-MTU.conf !

what's about an rc.local ? place a file called rc.local with the following text under /etc/rc.d/


-#!/bin/bash

touch /var/lock/subsys/local

ifconfig enp4s0 mtu 1492;

exit 0;

be aware this editor here change lines beginning with "#" to bold, therefore I had to put a " '-" in front of /bin/bash

rights and ownership should be this: -rwx------. 1 root root 4,6K 4. Jun 19:56 rc.local

reboot or "sudo source /etc/rc.d/rc.local"

check your MTU with "ifconfig | grep mtu" OR "tracepath ask.fedoraproject.org"

you are correct, sysctl --system with an extra file under /etc/sysctl.d/ doesn't change anything.

SORRY !!! My bad. BUG / Feature / PEBKAC ???

please delete your /etc/sysctl.d/100-my-MTU.conf !

what's about an rc.local ? place a file called rc.local with the following text under /etc/rc.d/


-#!/bin/bash

touch /var/lock/subsys/local

ifconfig enp4s0 mtu 1492;

exit 0;

be aware this editor here change lines beginning with "#" to bold, therefore I had to put a " '-" in front of /bin/bash

rights and ownership should be this: -rwx------. 1 root root 4,6K 4. Jun 19:56 rc.local

reboot or "sudo source /etc/rc.d/rc.local"

check your MTU with "ifconfig | grep mtu" OR "tracepath ask.fedoraproject.org"

you are correct, sysctl --system with an extra file under /etc/sysctl.d/ doesn't change anything.

SORRY !!! My bad. BUG / Feature / PEBKAC ???

please delete your /etc/sysctl.d/100-my-MTU.conf !

what's about an rc.local ? place a file called rc.local with the following text under /etc/rc.d/


-#!/bin/bash

touch /var/lock/subsys/local

ifconfig enp4s0 mtu 1492;

exit 0;

be aware this editor here change lines beginning with "#" to bold, therefore I had to put a " '-" -" in front of /bin/bash/bin/bash. so double check what you maybe copy&paste from here !

rights and ownership should be this: -rwx------. 1 root root 4,6K 4. Jun 19:56 rc.local

reboot or "sudo source /etc/rc.d/rc.local"

check your MTU with "ifconfig | grep mtu" OR "tracepath ask.fedoraproject.org"

you are correct, sysctl --system with an extra file under /etc/sysctl.d/ doesn't change anything.

SORRY !!! My bad. BUG / Feature / PEBKAC ???

please delete your /etc/sysctl.d/100-my-MTU.conf !

what's about an rc.local ? place a file called rc.local with the following text under /etc/rc.d/


-#!/bin/bash

touch /var/lock/subsys/local

ifconfig enp4s0 mtu 1492;

exit 0;

be aware this editor here change lines beginning with "#" to bold, therefore I had to put a " -" in front of /bin/bash. so double check what you maybe copy&paste from here !

rights and ownership should be this: -rwx------. 1 root root 4,6K 4. Jun 19:56 rc.local

reboot or "sudo source /etc/rc.d/rc.local"su -c 'source /etc/rc.d/rc.local'

check your MTU with "ifconfig | grep mtu" OR "tracepath ask.fedoraproject.org"

you are correct, sysctl --system --system with an extra file under /etc/sysctl.d/ /etc/sysctl.d/ doesn't change anything.

SORRY !!! My bad. BUG / Feature / PEBKAC ???

please delete your /etc/sysctl.d/100-my-MTU.conf /etc/sysctl.d/100-my-MTU.conf !

what's about an rc.local rc.local ? place a file called rc.local rc.local with the following text under /etc/rc.d/


-#!/bin/bash

#!/bin/bash
touch /var/lock/subsys/local

/var/lock/subsys/local ifconfig enp4s0 mtu 1492;

1492; exit 0;

be aware this editor here change lines beginning with "#" to bold, therefore I had to put a " -" in front of /bin/bash. so double check what you maybe copy&paste from here !

0;

rights and ownership should be this: this:

-rwx------. 1 root root 4,6K  4. Jun 19:56 rc.local

rc.local

reboot or su -c 'source /etc/rc.d/rc.local'

check your MTU with "ifconfig ifconfig | grep mtu" mtu OR "tracepath ask.fedoraproject.org"tracepath ask.fedoraproject.org