Quoting Tom Brown <tom@xxxxxxxx>:
Hi On a CentOS 4.x box how does one disable IPV6? Is adding "alias net-pf-10 off" to the end of modprobe.conf and a reboot still the 'standard' way of doing this ?
Yes, it is the only way of doing it. That alias will simply disable automatic loading of ipv6 kernel module. You can still load it manually (using modprobe).
In 2.4 kernels ipv6 kernel module was not automatically loaded. If you wanted ipv6 module to automatically be loaded in 2.4 kernels, you had to use "alias net-pf-10 ipv6". In 2.6 kernels, default was changed to autoload the ipv6 module if userland application needs IPv6. Nowdays, almost all network daemons are IPv6 enabled. Triggering the load of ipv6 kernel module as system services are started (unless you disabled autoloading of ipv6).
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