I am try to configure gateway. I am follow step 4 of

<a href=" https://trueconf.com/blog/knowledge-base/configure-xen-hypervisor-ubuntu-server-14-4-05.html>this

When I open to edit mc/etc/sysctl.conf file I get this message: ~Directory 'mc/etc' does not exist~

Please help me, I am new in ubuntu

I am try to configure gateway. I am follow step 4 of this https://trueconf.com/blog/knowledge-base/configure-xen-hypervisor-ubuntu-server-14-4-05.html

When I open to edit mc/etc/sysctl.conf file I get this message: ~Directory 'mc/etc' does not exist~

Please help me, I am new in ubuntu