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: #1586258, Closes: 909163,
Closes: 884932, LP: #1558068)
- drop 0002-bug849628.patch (included upstream)
- drop 0003-use-default-tcp-syncookies.patch (included upstream)
- drop 0004-lp1633698.patch (included upstream)
* Remaining changes:
- 0001-optimize-boot.patch
* debian/ufw.maintscript: remove /etc/bash_completion.d/ufw on upgrade
(LP: #1602834)
* debian/control: remove no longer needed xs-python-version and
x-python3-version fields
* update debian/before6.rules.md5sum for file shipped in 0.35-6. While both
before.rules and before6.rules were updated in this new upstream release,
0.35-6 mistakenly already had its own md5sum for before.rules, so we don't
need to add it now.
-- Jamie Strandboge <[email protected]> Fri, 14 Dec 2018 17:50:47 +0000
** Changed in: ufw (Ubuntu Disco)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1377600
Title:
ufw errors after ctr+c interupt
Status in ufw package in Ubuntu:
Fix Released
Status in ufw source package in Bionic:
Triaged
Status in ufw source package in Cosmic:
Triaged
Status in ufw source package in Disco:
Fix Released
Bug description:
in ufw.util.get_netfilter_capabilities
```
# Cleanup
cmd([exe, '-F', chain])
(rc, out) = cmd([exe, '-X', chain])
if rc != 0:
raise OSError(errno.ENOENT, out) # pragma: no cover
```
if the `ufw xxx` command is interrupt by ctrl+c, the cleanup is not called,
so every ufw cmd afterwards cause error:
```
ERROR: initcaps
[Errno 2] iptables: Chain already exists.
```
I think we should catch error and cleanup in a finally statement.
Or cleanup related rules before ufw init.
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