Wiping .cache makes gufw fail, cuts network access ?

[William Dietrich]

I added a line to /etc/fstab to put my ~/.cache on a tmpfs:

tmpfs /home/user1/.cache tmpfs nodev,nosuid,mode=1777,size=1G,defaults 0 0

or:

tmpfs /home/user1/.cache tmpfs noatime,nodiratime,nodev,nosuid,mode=1777,size=1G,defaults 0 0

[I tried a couple of versions, and rebooted a number of times, not sure of the exact configuration, sorry.]

After reboot, the system had no network access. "ping 1.1.1.1" or similar failed. I am using wired Ethernet. Tried various fixes. I eventually fixed the problem by uninstalling gufw. I'm not 100% positive gufw was the problem. But now (with first form of fstab line) everything works.

Is gufw storing something in ~/.cache that it shouldn't be ? I should be able to wipe ~/.cache and reboot and have everything work, correct ? I had no rules set in gufw, just enabled and Incoming=Deny. System worked okay with gufw before I added that fstab line and rebooted.

I'm on Kubuntu 20.10, kernel 5.8.0-41-generic, gufw 20.10.0-0ubuntu1

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: gufw (not installed)
ProcVersionSignature: Ubuntu 5.8.0-41.46-generic 5.8.18
Uname: Linux 5.8.0-41-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Thu Feb 4 14:07:32 2021
InstallationDate: Installed on 2021-02-03 (1 days ago)
InstallationMedia: Kubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
SourcePackage: gui-ufw
UpgradeStatus: No upgrade log present (probably fresh install)

[costales (costales)]

Hi,

No, Gufw is not using that directory. But I had several times bugs about
with Gufw enabled the PC hasn't Internet... really weird.

Best regards.

[William Dietrich (billdietrich444)]

Could it be something used by gufw ? Firewalld or iptables or something ?

[costales (costales)]

No, it only sends commands to ufw

[William Dietrich (billdietrich444)]

Maybe ufw stores something important in ~/.cache ?

[William Dietrich (billdietrich444)]

Okay, now I'm convinced my problems have nothing to do with ~/.cache, so I'm closing this issue. But I'm still having gufw show "disabled" after a reboot. When it happens, is that just reacting to some change that ufw made to the iptables ? Such as setting the INPUT chain to empty ? I think I've found an issue I'm going to file against ufw. Thanks.

[William Dietrich (billdietrich444)]

I guess I can't close this issue myself, so please close it for me. Thanks.

[costales (costales)]

Could you run gufw on terminal and put here the dump? thanks!

[William Dietrich (billdietrich444)]

What I am seeing seems to be a state change that happens at boot time, so I can't capture it in gufw cli. I have filed https://bugs.launchpad.net/ubuntu/+source/ufw/+bug/1914816