Does Ubuntu now use bpfilter or netfilter?
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I'm trying to put together a firewall/router using netinstall of Ubuntu 18.10 with bpfilter. I know it's packaged by default with kernel >=4.18 these days, but I'm a little confused about how to specify it rather than netfilter.
Does anybody know?
For starters:
root@ubuntu1810:/home/localuser# uname -r
4.18.0-12-generic
And also :
root@ubuntu1810:/home/localuser# dmesg | grep bpfilter
[ 969.576326] bpfilter: Loaded bpfilter_umh pid 14099
Also just noticed this:
# lsmod | grep bp
bpfilter 16384 0
So that's good, but when I search for netfilter I get a lot of /proc sources
root@ubuntu1810:/home/localuser# find / -name netfilter
/usr/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/net/netfilter
/usr/src/linux-headers-4.18.0-12/include/uapi/linux/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv6/netfilter
/usr/src/linux-headers-4.18.0-12/net/bridge/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/netfilter
/usr/src/linux-headers-4.18.0-12/net/netfilter
/usr/src/linux-headers-4.18.0-12/net/decnet/netfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/netfilter
/proc/sys/net/netfilter
/proc/1/task/1/net/netfilter
/proc/1/net/netfilter
/proc/2/task/2/net/netfilter
/proc/2/net/netfilter
/proc/3/task/3/net/netfilter
/proc/3/net/netfilter
/proc/14462/task/14462/net/netfilter
/proc/14462/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv6/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/bridge/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv4/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/decnet/netfilter
but then also I can find: (although no /proc)
root@ubuntu1810:/home/localuser# find / -name bpfilter
/sys/module/bpfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/bpfilter
/usr/src/linux-headers-4.18.0-12/net/bpfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/bpfilter
/lib/modules/4.18.0-12-generic/kernel/net/bpfilter
And also, if I run iptables rules these should control whatever firewall is running, correct? I'm setting up csf with webmin.
Can anybody clear this up for me please? Thanks!
networking kernel firewall
edited Dec 9 at 3:50
muru
135k19289490
asked Dec 8 at 22:14
AveryFreeman
389310
add a comment |
up vote
0
down vote
favorite
I'm trying to put together a firewall/router using netinstall of Ubuntu 18.10 with bpfilter. I know it's packaged by default with kernel >=4.18 these days, but I'm a little confused about how to specify it rather than netfilter.
Does anybody know?
For starters:
root@ubuntu1810:/home/localuser# uname -r
4.18.0-12-generic
And also :
root@ubuntu1810:/home/localuser# dmesg | grep bpfilter
[ 969.576326] bpfilter: Loaded bpfilter_umh pid 14099
Also just noticed this:
# lsmod | grep bp
bpfilter 16384 0
So that's good, but when I search for netfilter I get a lot of /proc sources
root@ubuntu1810:/home/localuser# find / -name netfilter
/usr/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/net/netfilter
/usr/src/linux-headers-4.18.0-12/include/uapi/linux/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv6/netfilter
/usr/src/linux-headers-4.18.0-12/net/bridge/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/netfilter
/usr/src/linux-headers-4.18.0-12/net/netfilter
/usr/src/linux-headers-4.18.0-12/net/decnet/netfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/netfilter
/proc/sys/net/netfilter
/proc/1/task/1/net/netfilter
/proc/1/net/netfilter
/proc/2/task/2/net/netfilter
/proc/2/net/netfilter
/proc/3/task/3/net/netfilter
/proc/3/net/netfilter
/proc/14462/task/14462/net/netfilter
/proc/14462/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv6/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/bridge/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv4/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/decnet/netfilter
but then also I can find: (although no /proc)
root@ubuntu1810:/home/localuser# find / -name bpfilter
/sys/module/bpfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/bpfilter
/usr/src/linux-headers-4.18.0-12/net/bpfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/bpfilter
/lib/modules/4.18.0-12-generic/kernel/net/bpfilter
And also, if I run iptables rules these should control whatever firewall is running, correct? I'm setting up csf with webmin.
Can anybody clear this up for me please? Thanks!
networking kernel firewall
edited Dec 9 at 3:50
muru
135k19289490
asked Dec 8 at 22:14
AveryFreeman
389310
Well, I think I may have answered my own question through research. From what I gleam from many articles, 1) bpfilter is included in the kernel and runs, but does not currently have general functionality to any appreciable degree as of 4.18, and 2) netfilter is still included as the default kernel firewall along with iptables rules compatibility --- Please correct me if I'm wrong!
– AveryFreeman
Dec 9 at 21:30
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I'm trying to put together a firewall/router using netinstall of Ubuntu 18.10 with bpfilter. I know it's packaged by default with kernel >=4.18 these days, but I'm a little confused about how to specify it rather than netfilter.
Does anybody know?
For starters:
root@ubuntu1810:/home/localuser# uname -r
4.18.0-12-generic
And also :
root@ubuntu1810:/home/localuser# dmesg | grep bpfilter
[ 969.576326] bpfilter: Loaded bpfilter_umh pid 14099
Also just noticed this:
# lsmod | grep bp
bpfilter 16384 0
So that's good, but when I search for netfilter I get a lot of /proc sources
root@ubuntu1810:/home/localuser# find / -name netfilter
/usr/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/net/netfilter
/usr/src/linux-headers-4.18.0-12/include/uapi/linux/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv6/netfilter
/usr/src/linux-headers-4.18.0-12/net/bridge/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/netfilter
/usr/src/linux-headers-4.18.0-12/net/netfilter
/usr/src/linux-headers-4.18.0-12/net/decnet/netfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/netfilter
/proc/sys/net/netfilter
/proc/1/task/1/net/netfilter
/proc/1/net/netfilter
/proc/2/task/2/net/netfilter
/proc/2/net/netfilter
/proc/3/task/3/net/netfilter
/proc/3/net/netfilter
/proc/14462/task/14462/net/netfilter
/proc/14462/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv6/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/bridge/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv4/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/decnet/netfilter
but then also I can find: (although no /proc)
root@ubuntu1810:/home/localuser# find / -name bpfilter
/sys/module/bpfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/bpfilter
/usr/src/linux-headers-4.18.0-12/net/bpfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/bpfilter
/lib/modules/4.18.0-12-generic/kernel/net/bpfilter
And also, if I run iptables rules these should control whatever firewall is running, correct? I'm setting up csf with webmin.
Can anybody clear this up for me please? Thanks!
networking kernel firewall
edited Dec 9 at 3:50
muru
135k19289490
asked Dec 8 at 22:14
AveryFreeman
389310
I'm trying to put together a firewall/router using netinstall of Ubuntu 18.10 with bpfilter. I know it's packaged by default with kernel >=4.18 these days, but I'm a little confused about how to specify it rather than netfilter.
Does anybody know?
For starters:
root@ubuntu1810:/home/localuser# uname -r
4.18.0-12-generic
And also :
root@ubuntu1810:/home/localuser# dmesg | grep bpfilter
[ 969.576326] bpfilter: Loaded bpfilter_umh pid 14099
Also just noticed this:
# lsmod | grep bp
bpfilter 16384 0
So that's good, but when I search for netfilter I get a lot of /proc sources
root@ubuntu1810:/home/localuser# find / -name netfilter
/usr/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/linux/netfilter
/usr/src/linux-headers-4.18.0-12/include/net/netfilter
/usr/src/linux-headers-4.18.0-12/include/uapi/linux/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv6/netfilter
/usr/src/linux-headers-4.18.0-12/net/bridge/netfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/netfilter
/usr/src/linux-headers-4.18.0-12/net/netfilter
/usr/src/linux-headers-4.18.0-12/net/decnet/netfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/netfilter
/proc/sys/net/netfilter
/proc/1/task/1/net/netfilter
/proc/1/net/netfilter
/proc/2/task/2/net/netfilter
/proc/2/net/netfilter
/proc/3/task/3/net/netfilter
/proc/3/net/netfilter
/proc/14462/task/14462/net/netfilter
/proc/14462/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv6/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/bridge/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/ipv4/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/netfilter
/lib/modules/4.18.0-12-generic/kernel/net/decnet/netfilter
but then also I can find: (although no /proc)
root@ubuntu1810:/home/localuser# find / -name bpfilter
/sys/module/bpfilter
/usr/src/linux-headers-4.18.0-12/net/ipv4/bpfilter
/usr/src/linux-headers-4.18.0-12/net/bpfilter
/usr/src/linux-headers-4.18.0-12-generic/include/config/bpfilter
/lib/modules/4.18.0-12-generic/kernel/net/bpfilter
And also, if I run iptables rules these should control whatever firewall is running, correct? I'm setting up csf with webmin.
Can anybody clear this up for me please? Thanks!
networking kernel firewall
networking kernel firewall
edited Dec 9 at 3:50
muru
135k19289490
asked Dec 8 at 22:14
AveryFreeman
389310
edited Dec 9 at 3:50
muru
135k19289490
asked Dec 8 at 22:14
AveryFreeman
389310
edited Dec 9 at 3:50
muru
135k19289490
edited Dec 9 at 3:50
muru
135k19289490
edited Dec 9 at 3:50
muru
135k19289490
135k19289490
asked Dec 8 at 22:14
AveryFreeman
389310
asked Dec 8 at 22:14
AveryFreeman
389310
asked Dec 8 at 22:14
AveryFreeman
389310
389310
Well, I think I may have answered my own question through research. From what I gleam from many articles, 1) bpfilter is included in the kernel and runs, but does not currently have general functionality to any appreciable degree as of 4.18, and 2) netfilter is still included as the default kernel firewall along with iptables rules compatibility --- Please correct me if I'm wrong!
– AveryFreeman
Dec 9 at 21:30
add a comment |
Well, I think I may have answered my own question through research. From what I gleam from many articles, 1) bpfilter is included in the kernel and runs, but does not currently have general functionality to any appreciable degree as of 4.18, and 2) netfilter is still included as the default kernel firewall along with iptables rules compatibility --- Please correct me if I'm wrong!
– AveryFreeman
Dec 9 at 21:30
Well, I think I may have answered my own question through research. From what I gleam from many articles, 1) bpfilter is included in the kernel and runs, but does not currently have general functionality to any appreciable degree as of 4.18, and 2) netfilter is still included as the default kernel firewall along with iptables rules compatibility --- Please correct me if I'm wrong!
– AveryFreeman
Dec 9 at 21:30
Well, I think I may have answered my own question through research. From what I gleam from many articles, 1) bpfilter is included in the kernel and runs, but does not currently have general functionality to any appreciable degree as of 4.18, and 2) netfilter is still included as the default kernel firewall along with iptables rules compatibility --- Please correct me if I'm wrong!
– AveryFreeman
Dec 9 at 21:30
add a comment |
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Well, I think I may have answered my own question through research. From what I gleam from many articles, 1) bpfilter is included in the kernel and runs, but does not currently have general functionality to any appreciable degree as of 4.18, and 2) netfilter is still included as the default kernel firewall along with iptables rules compatibility --- Please correct me if I'm wrong!
– AveryFreeman
Dec 9 at 21:30