I have declared also the bug in Ansible collection repo, however this is
clearly a UFW bug:
https://github.com/ansible-collections/community.general/issues/4769
** Bug watch added: github.com/ansible-collections/community.general/issues
#4769
ufw does not support rule removal. For a particular project (a task queue on a
cloud adhoc HPC cluster), I have had the occasion to test it in a relatively
massive parallel rate (20 concurrent uses). I have experienced:
- nice behaviour when adding rules,
- bad behaviour when removing rules.
I
This bug was fixed in the package ufw - 0.36-0ubuntu0.18.04.1
---
ufw (0.36-0ubuntu0.18.04.1) bionic-proposed; urgency=medium
* Backport to bionic addressing the following SRU bugs:
- LP: #1811129 - master SRU bug
- LP: #1664133 - before6.rules: echo-reply needs to be
This bug was fixed in the package ufw - 0.36-0ubuntu0.18.10.1
---
ufw (0.36-0ubuntu0.18.10.1) cosmic-proposed; urgency=medium
* Backport to cosmic addressing the following SRU bugs:
- LP: #1811129 - master SRU bug
- LP: #1664133 - before6.rules: echo-reply needs to be
Verified this is fixed in bionic:
$ apt-cache policy ufw
ufw:
Installed: 0.36-0ubuntu0.18.04.1
Candidate: 0.36-0ubuntu0.18.04.1
Version table:
*** 0.36-0ubuntu0.18.04.1 500
500 http://us.archive.ubuntu.com/ubuntu bionic-proposed/main amd64
Packages
500
Tested this is fixed in cosmic:
$ apt-cache policy ufw
ufw:
Installed: 0.36-0ubuntu0.18.10.1
Candidate: 0.36-0ubuntu0.18.10.1
Version table:
*** 0.36-0ubuntu0.18.10.1 500
500 http://us.archive.ubuntu.com/ubuntu cosmic-proposed/main amd64
Packages
500
Hello Jeremy, or anyone else affected,
Accepted ufw into cosmic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/ufw/0.36-0ubuntu0.18.10.1 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
** Changed in: ufw (Ubuntu Bionic)
Status: Triaged => In Progress
** Changed in: ufw (Ubuntu Cosmic)
Status: Triaged => In Progress
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** Description changed:
+ [Impact]
+
+ ufw prior to 0.36 did not support locking or use xtables locking which
+ can lead to problems when using ufw as a dynamic firewall.
+
+ [Test Case]
+
+ $ sudo apt-get install python-minimal # for the test script
+ $ sudo ./test_ufw_threads.py # this runs
** Changed in: ufw (Debian)
Status: New => Fix Released
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Title:
ufw doesn't support concurrent updates
To manage notifications about
This bug was fixed in the package ufw - 0.36-1
---
ufw (0.36-1) unstable; urgency=medium
* New upstream release (LP: #1782384, LP: #1664133, LP: #1509725,
LP: #1695718, LP: #1719211, LP: #1775043, LP: #1204579, LP: #1652163,
LP: #1377600, Closes: 686248, LP: #1368411, LP:
This is fixed in the new 0.36 release.
** Changed in: ufw
Status: Fix Committed => Fix Released
** Changed in: ufw
Assignee: (unassigned) => Jamie Strandboge (jdstrand)
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** Also affects: ufw (Ubuntu Cosmic)
Importance: Undecided
Status: New
** Also affects: ufw (Ubuntu Disco)
Importance: Medium
Assignee: Jamie Strandboge (jdstrand)
Status: In Progress
** Also affects: ufw (Ubuntu Bionic)
Importance: Undecided
Status: New
**
** Changed in: ufw (Ubuntu)
Status: Triaged => In Progress
** Changed in: ufw (Ubuntu)
Assignee: (unassigned) => Jamie Strandboge (jdstrand)
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This is in git master now and in the ufw snap in candidate.
** Changed in: ufw
Status: Triaged => Fix Committed
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Title:
ufw doesn't
the flock worked perfectly thank you!
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Title:
ufw doesn't support concurrent updates
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Hi all. I posted a question on this last December, but I never received
feedback on it. Here is the bug report
https://bugs.launchpad.net/ufw/+bug/1652163.
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@Luke, you could modify backend_iptables.py as mentioned in comment #5
or you could perhaps use 'man 1 flock' or implement a lock wrapper
around your invocation of ufw.
That said, since didn't hear back from Christopher, I'll take a look at
implementing this for 0.36.
** Changed in: ufw
Is there a current work around for this, otherwise I have to re-write a
bunch of code to go to iptables
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Title:
ufw doesn't support concurrent
OK great. I will work on this patch.
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Title:
ufw doesn't support concurrent updates
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@Christopher - I implemented this a bit differently but had some
troubles with the testsuite. I think '-w' would be much simpler. There
isn't a way to pass this into ufw, but you could modify
backend_iptables.py towards the end of set_rule() to pass the flag.
** Changed in: ufw
Status: In
Is there any update on this? I know there is a -w command in iptables
with this patch https://patchwork.ozlabs.org/patch/635676/. Is there a
way to call through ufw to set this option to increase the waits?
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** Changed in: ufw (Debian)
Status: Unknown = New
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Title:
ufw doesn't support concurrent updates
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** Bug watch added: Debian Bug tracker #686248
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686248
** Also affects: ufw (Debian) via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686248
Importance: Unknown
Status: Unknown
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There was a problem with the patch and this will be in the next release
of ufw.
** Changed in: ufw
Milestone: 0.34 = None
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Title:
ufw
** Changed in: ufw
Status: Fix Committed = In Progress
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Title:
ufw doesn't support concurrent updates
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** Changed in: ufw
Status: Triaged = Fix Committed
** Changed in: ufw
Milestone: None = 0.34
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Title:
ufw doesn't support concurrent
** Changed in: ufw (Ubuntu)
Importance: Undecided = Medium
** Changed in: ufw
Importance: Undecided = Medium
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Title:
ufw doesn't support
** Description changed:
On a server under Ubuntu 12.04 I automatically update firewall rules and I
unfortunately noticed that if 2 rules are processed at the same time it leads
to an inconsistent result between iptables and ufw status.
In fact it can be reproduced using the python script in
** Changed in: ufw (Ubuntu)
Status: New = Triaged
** Changed in: ufw
Status: New = Triaged
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Title:
ufw doesn't support concurrent
** Also affects: ufw (Ubuntu)
Importance: Undecided
Status: New
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Title:
ufw doesn't support concurrent updates
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