In some Linux® distributions, one could look at
/proc/sys/net/ipv4/ip_forward to determine
if IP forwarding is enabled. In FreeBSD,
sysctl(8) is instead used to view this and other system
settings.
For example, use the following to determine if IP forwarding is enabled on a FreeBSD system:
%sysctl net.inet.ip.forwardingnet.inet.ip.forwarding: 0
Use -a to list all the system
settings:
%sysctl -a | more
If an application requires procfs, add the following entry
to /etc/fstab:
proc /proc procfs rw,noauto 0 0
Including noauto will prevent
/proc from being automatically mounted at
boot.
To mount the file system without rebooting:
#mount /proc
All FreeBSD documents are available for download at https://download.freebsd.org/ftp/doc/
Questions that are not answered by the
documentation may be
sent to <freebsd-questions@FreeBSD.org>.
Send questions about this document to <freebsd-doc@FreeBSD.org>.