Bug#932769: DHCP request bug when storage lost

2023-02-09 Thread mg
Package: isc-dhcp-client Version: 4.4.3-P1-1.1 Followup-For: Bug #932769 Hi, We experience this issue too, in Bullseye and Bookworm (updated from Bullseye). Our environment is similar to that described by Mark (the initial reporter), i.e., a VMware ESXi cluster with VMs stored on a network

Bug#932769: have a look at patch from CentOS

2019-07-31 Thread Thomas Lange
> On Wed, 31 Jul 2019 08:37:37 +0200, Sven Hartge said: > This bug has been fixed in ISC DHCP 4.3.6. I had the problem with Debian stretch. Since I'm moving to buster soon, this is not that important for me. But it may be nice to have this fixed for stretch. > In my opinion this chan

Bug#932769: have a look at patch from CentOS

2019-07-30 Thread Sven Hartge
On 31.07.19 08:37, Sven Hartge wrote: > This was ISC-Bug 45457: > https://bugs.isc.org/Public/Bug/Display.html?id=45457 > > This bug has been fixed in ISC DHCP 4.3.6. > > The commit implementing this is > https://gitlab.isc.org/isc-projects/dhcp/commit/3e88222f1c2f7a365b9fde018bb4bf86520b51d6 I

Bug#932769: have a look at patch from CentOS

2019-07-30 Thread Sven Hartge
On 31.07.19 00:20, Thomas Lange wrote: > First I can confirm this bug. Some time ago I had two servers which > caused a huge amount of dhcp requests to log the DHCP server (managed > by a different departement). They told me one server did 30 requests > per seconds. > I've looked at the CentOS 8

Bug#932769: have a look at patch from CentOS

2019-07-30 Thread Thomas Lange
First I can confirm this bug. Some time ago I had two servers which caused a huge amount of dhcp requests to log the DHCP server (managed by a different departement). They told me one server did 30 requests per seconds. I've looked at the CentOS 8 sources and found this patch: > # If we receiv

Bug#932769:

2019-07-24 Thread Mark Hutchison
Hi Tomas, Thanks for recategorizing the bug and applying the version. I was getting caught up and see you already did this. Just wanted to add a few points from additional testing I've been doing. > I can't replicate this by damaging /var in any other way. I've tried filling the volume up unti

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-24 Thread Sven Hartge
On 24.07.19 11:13, Tomas Pospisek wrote: > So my interpretation of your initial bug report, that the VM would DoS > the host on which it was running via fast changing of IP addresses on > its interface was completely off the track? > > So what you wanted in fact wanted to say by "DoS'ing the serv

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-24 Thread Tomas Pospisek
i-bin/bugreport.cgi?bug=888209 Thanks, just let me know if you have any questions. On Tue, Jul 23, 2019 at 4:23 PM Tomáš Pospíšek wrote: Am 23.07.19 um 17:57 schrieb Ben Hutchings: > On Tue, 2019-07-23 at 16:51 -0400, Tomas Pospisek wrote: >> Package: general >

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-23 Thread Sven Hartge
On Tue, 23 Jul 2019 19:32:04 -0600 Mark Hutchison wrote: > When I look at systemctl for the dhclient service, I can see that there's > an error, "can't create /var/lib/dhcp/dhclient.intname.leases Read Only > file system", and then the DHCPREQUEST > DHCPACK > DHCPDECLINE sequence > starts every f

Bug#932769: #932769

2019-07-23 Thread Mark Hutchison
Hi fellas, Apologies for the brevity in the initial bug report. I was using the reportbug tool directly from the console of the VM I was working on, small resolution. Allow me to elaborate... We initially discovered this bug testing our storage product, we had a Debian 10 VM running in a typica

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-23 Thread Mark Hutchison
9 at 4:23 PM Tomáš Pospíšek wrote: > Am 23.07.19 um 17:57 schrieb Ben Hutchings: > > On Tue, 2019-07-23 at 16:51 -0400, Tomas Pospisek wrote: > >> Package: general > >> Followup-For: Bug #932769 > >> > >> Could you privide a recipe on how to reproduce this?

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-23 Thread Tomáš Pospíšek
Am 23.07.19 um 17:57 schrieb Ben Hutchings: > On Tue, 2019-07-23 at 16:51 -0400, Tomas Pospisek wrote: >> Package: general >> Followup-For: Bug #932769 >> >> Could you privide a recipe on how to reproduce this? There's a lot of >> very special setup below, tha

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-23 Thread Ben Hutchings
On Tue, 2019-07-23 at 16:51 -0400, Tomas Pospisek wrote: > Package: general > Followup-For: Bug #932769 > > Could you privide a recipe on how to reproduce this? There's a lot of > very special setup below, that someone wwould need large amounts of time > to reporoduce I fe

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-23 Thread Tomas Pospisek
-dhcp-client? [...]?): shouldn't there be some rate limiting sanity check in the DHCP client? *t On Tue, 23 Jul 2019, Tomas Pospisek wrote: Package: general Followup-For: Bug #932769 Could you privide a recipe on how to reproduce this? There's a lot of very special setup below, th

Bug#932769: [moreinfo] DoS via DHCP request

2019-07-23 Thread Tomas Pospisek
Package: general Followup-For: Bug #932769 Could you privide a recipe on how to reproduce this? There's a lot of very special setup below, that someone wwould need large amounts of time to reporoduce I feel. Is it possible to reduce the problem to something easily demonstratable? This see

Bug#932769: general: DHCP request bug when storage lost

2019-07-22 Thread Mark Hutchison
Package: general Severity: important Tags: l10n Dear Maintainer, While doing unrelated storage testing for our VMware integrated product, we purposefully recreated a storage outage by removing the iSCSI initiators from the backing array hosting the vmdk disk images for the virtual machine. Up