openstack/devstack
Code Issues Proposed changes

Merge "Move the firewall disable section into a misc section"

Browse Source
This commit is contained in:
Jenkins 2015-10-07 03:23:40 +00:00 committed by Gerrit Code Review
commit 286cc05973
1 changed files with 38 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
doc/source/guides/neutron.rst
View File

@ -125,39 +125,6 @@ connectivity.
Disabling Next Generation Firewall Tools
========================================
DevStack does not properly operate with modern firewall tools. Specifically
it will appear as if the guest VM can access the external network via ICMP,
but UDP and TCP packets will not be delivered to the guest VM. The root cause
of the issue is that both ufw (Uncomplicated Firewall) and firewalld (Fedora's
firewall manager) apply firewall rules to all interfaces in the system, rather
then per-device. One solution to this problem is to revert to iptables
functionality.
To get a functional firewall configuration for Fedora do the following:
::
sudo service iptables save
sudo systemctl disable firewalld
sudo systemctl enable iptables
sudo systemctl stop firewalld
sudo systemctl start iptables
To get a functional firewall configuration for distributions containing ufw,
disable ufw. Note ufw is generally not enabled by default in Ubuntu. To
disable ufw if it was enabled, do the following:
::
sudo service iptables save
sudo ufw disable
Neutron Networking with Open vSwitch
====================================
@ -301,3 +268,41 @@ For example, with the above configuration, a bridge is
created, named `br-ex` which is managed by Open vSwitch, and the
second interface on the compute node, `eth1` is attached to the
bridge, to forward traffic sent by guest VMs.
Miscellaneous Tips
==================
Disabling Next Generation Firewall Tools
----------------------------------------
DevStack does not properly operate with modern firewall tools. Specifically
it will appear as if the guest VM can access the external network via ICMP,
but UDP and TCP packets will not be delivered to the guest VM. The root cause
of the issue is that both ufw (Uncomplicated Firewall) and firewalld (Fedora's
firewall manager) apply firewall rules to all interfaces in the system, rather
then per-device. One solution to this problem is to revert to iptables
functionality.
To get a functional firewall configuration for Fedora do the following:
::
sudo service iptables save
sudo systemctl disable firewalld
sudo systemctl enable iptables
sudo systemctl stop firewalld
sudo systemctl start iptables
To get a functional firewall configuration for distributions containing ufw,
disable ufw. Note ufw is generally not enabled by default in Ubuntu. To
disable ufw if it was enabled, do the following:
::
sudo service iptables save
sudo ufw disable