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I want to change the MTU value for only the connections that are going between localhost / 127.0.0.1 on a Red Hat box. How do I do that?

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1 Answer 1

up vote 3 down vote accepted

Use ifconfig

# ifconfig lo mtu 16436

You can make the change more permanent by adding to /etc/sysconfig/network-scripts/ifcfg-lo:

MTU=16436
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