Re: [CentOS] Who deletes/edits my resolv.com ?

John R Pierce wrote:

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IPforwarding was turned off on my server, [root@alfred ~]# sysctl net.ipv4.ip_forward net.ipv4.ip_forward = 0

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Who changes this setting, and why?? I sometimes feel there are little men inside my server either with evil minds or else very pedantic intentions.

note you need to put sysctl settings in /etc/sysctl.conf, or they won't persist on reboot.

Yes, thanks, I had done that. But I hadn't actually re-booted after adding PEERDNS=no to ifcfg-eth1. It seems the mere change triggered the kernel to turn forwarding off.

Incidentally, I am running shorewall on this server with IP_FORWARDING=On . I'm surprised this does not turn on kernel forwarding.