Which files include information that determines whether a Linux PC performs IP forwarding?
What will be an ideal response?
```
/etc/sysctl.conf has net.ipv4.ip_forward=$boolean. To change the value of
$boolean to 0 or 1, the host performs IP forwaring or not.
For compatibility with older software, in old version of Red Hat Linux 6.2, /etc/sysconfig/network
has field FORWARD_IPV4=$boolean where $boolean is yes or no -Perform IP forwarding
or not to perform IP forwarding. Newer than Red Hat 6.2 only use /etc/sysctl.conf file for this
purpose.
/proc/sys/net/ipv4/ip_forward file has the current configuration value. If the file has ‘1’, it is
performing IP forwarding.
```
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