[Bug 296841] Re: root account has ! as default password
1. OK 2. I may not know enough detail here, but why would it then be that root password '!' prevents me from logging with SSH key, but root password of '*' allows me to do so? I was under impression that '!' in /etc/shadow password field is used to disable logins for that account entirely. -- root account has ! as default password https://bugs.launchpad.net/bugs/296841 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 296841] Re: root account has ! as default password
Hi Jamie, Firstly, I'm curious with what sshd_config settings does sshd allow you to connect having such root line in /etc/shadow without supplying password. Because even if I supply this config (neither of which I use in practice): PermitRootLogin yes PasswordAuthentication yes I still can't login as root with empty password via SSH. Secondly, while my original suggestion was wrong and nonull or nullok is not the main problem (it's just a coincidence that using nonull helps in my case), when you're disabling root login like this (exclamation mark in the password field, which has a special meaning of locking the account), do you realize you disable root login by SSH keys as well? It would have been much better to replace with an asterisk which achieves what you need to do and does not lock other people out. /etc/shadow root:!:14210:0:9:7::: /var/log/auth.log Dec 5 18:12:37 root sshd[3387]: User root not allowed because account is locked Jan -- root account has ! as default password https://bugs.launchpad.net/bugs/296841 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 296841] Re: root account has ! as default password
This fix breaks logging into our OpenVZ and Linux-VServer virtual machines created from debootstrapped templates. The routine by which you check whether the root login should be disabled is wrong: if printf '!\0' | unix_chkpwd root nullok ; then echo 'root:!' | chpasswd -e fi This should become: if printf '!\0' | unix_chkpwd root nonull ; then echo 'root:!' | chpasswd -e fi This bug will affect everybody who has * as their root password, hence not using password, hence probably exclusively using SSH keys or something such. This should have been tested better before releasing a package that will lock many people out of their template-created machines (virtual or not). -- root account has ! as default password https://bugs.launchpad.net/bugs/296841 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] Re: WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
Hi, This issue is tracked on OpenVZ Bugzilla as #917: http://bugzilla.openvz.org/show_bug.cgi?id=917 It only appears on a 4x 4-core Opteron system that I have, none of the 2x 4-core ones or smaller. The system is already in production on an older 2.6.18 OpenVZ kernel so no way to test patches for this issue. Jan -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] Re: WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
The problem is still there on linux-image-2.6.24-19-openvz, as expected. Also, nm-applet vanished overnight, not sure if that is related (restarted dbus, nm-applet, would be happy to do some specific debugging next time if someone can drop a hint). Jan Jun 24 07:46:43 zirael kernel: [ 23.147434] WARNING: at /build/buildd/linux-2.6.24/debian/build/custom-source-openvz/drivers/char/vt.c:3688 poke_blanked_console() Jun 24 07:46:43 zirael kernel: [ 23.147440] Pid: 4498, comm: events/1 Not tainted 2.6.24-19-openvz #1 Jun 24 07:46:43 zirael kernel: [ 23.147443] Jun 24 07:46:43 zirael kernel: [ 23.147444] Call Trace: Jun 24 07:46:43 zirael kernel: [ 23.147452] [cpufreq_ondemand:queue_delayed_work_on+0x9a/0xc5070] queue_delayed_work_on+0x9a/0xe0 Jun 24 07:46:43 zirael kernel: [ 23.147476] [poke_blanked_console+0xcd/0xe0] poke_blanked_console+0xcd/0xe0 Jun 24 07:46:43 zirael kernel: [ 23.147480] [vmstat_update+0x0/0x40] vmstat_update+0x0/0x40 Jun 24 07:46:43 zirael kernel: [ 23.147484] [console_callback+0xbf/0x110] console_callback+0xbf/0x110 Jun 24 07:46:43 zirael kernel: [ 23.147490] [run_workqueue+0xcc/0x170] run_wo rkqueue+0xcc/0x170 Jun 24 07:46:43 zirael kernel: [ 23.147493] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 24 07:46:43 zirael kernel: [ 23.147500] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 24 07:46:43 zirael kernel: [ 23.147505] [worker_thread+0xa3/0x110] worker_thread+0xa3/0x110 Jun 24 07:46:43 zirael kernel: [ 23.147512] [80256e40] autoremove_wake_function+0x0/0x30 Jun 24 07:46:43 zirael kernel: [ 23.147519] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 24 07:46:43 zirael kernel: [ 23.147525] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 24 07:46:43 zirael kernel: [ 23.147530] [kthread+0x4b/0x80] kthread+0x4b/0x80 Jun 24 07:46:43 zirael kernel: [ 23.147538] [child_rip+0xa/0x12] child_rip+0xa/0x12 Jun 24 07:46:43 zirael kernel: [ 23.147555] [kthread+0x0/0x80] kthread+0x0/0x80 Jun 24 07:46:43 zirael kernel: [ 23.147560] [child_rip+0x0/0x12] child_rip+0x0/0x12 -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] Re: WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
I'm now running 2.6.24-19-openvz that was probably released yesterday and the warning didn't re-appear yet.. however having read the changelog I haven't spotted anything related to this since revision 18, so I believe it might still be present. Jan -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] Re: WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
** Attachment added: lspci-vvnn.log http://launchpadlibrarian.net/15545950/lspci-vvnn.log -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] Re: WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
** Attachment added: dmesg.log http://launchpadlibrarian.net/15545945/dmesg.log -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] Re: WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
** Attachment added: uname-a.log http://launchpadlibrarian.net/15545929/uname-a.log -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] [NEW] WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
Public bug reported: Binary package hint: linux-image-2.6.24-18-openvz I get a lot of these warnings below. No bad behaviour I could see, just activity in logs. Could somebody please have a look and assess severity of the problem? Regards, Jan Jun 23 01:43:36 zirael kernel: [ 3043.224487] WARNING: at /build/buildd/linux-2.6.24/debian/build/custom-source-openvz/drivers/char/vt.c:816 vc_resize() Jun 23 01:43:36 zirael kernel: [ 3043.224492] Pid: 9, comm: events/0 Not tainted 2.6.24-18-openvz #1 Jun 23 01:43:36 zirael kernel: [ 3043.224495] Jun 23 01:43:36 zirael kernel: [ 3043.224496] Call Trace: Jun 23 01:43:36 zirael kernel: [ 3043.224501] [vc_resize+0x2c9/0x440] vc_resize+0x2c9/0x440 Jun 23 01:43:36 zirael kernel: [ 3043.224515] [vgacon_do_font_op+0x13c/0x4d0] vgacon_do_font_op+0x13c/0x4d0 Jun 23 01:43:36 zirael kernel: [ 3043.224523] [vgacon_do_font_op+0x335/0x4d0] vgacon_do_font_op+0x335/0x4d0 Jun 23 01:43:36 zirael kernel: [ 3043.224534] [vgacon_font_set+0x21b/0x240] vgacon_font_set+0x21b/0x240 Jun 23 01:43:36 zirael kernel: [ 3043.224546] [complete_change_console+0x171/0x1b0] complete_change_console+0x171/0x1b0 Jun 23 01:43:36 zirael kernel: [ 3043.224552] [console_callback+0x0/0x110] console_callback+0x0/0x110 Jun 23 01:43:36 zirael kernel: [ 3043.224557] [console_callback+0xf0/0x110] console_callback+0xf0/0x110 Jun 23 01:43:36 zirael kernel: [ 3043.224563] [run_workqueue+0xcc/0x170] run_workqueue+0xcc/0x170 Jun 23 01:43:36 zirael kernel: [ 3043.224567] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 23 01:43:36 zirael kernel: [ 3043.224573] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 23 01:43:36 zirael kernel: [ 3043.224579] [worker_thread+0xa3/0x110] worker_thread+0xa3/0x110 Jun 23 01:43:36 zirael kernel: [ 3043.224585] [80256ee0] autoremove_wake_function+0x0/0x30 Jun 23 01:43:36 zirael kernel: [ 3043.224593] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 23 01:43:36 zirael kernel: [ 3043.224599] [worker_thread+0x0/0x110] worker_thread+0x0/0x110 Jun 23 01:43:36 zirael kernel: [ 3043.224604] [kthread+0x4b/0x80] kthread+0x4b/0x80 Jun 23 01:43:36 zirael kernel: [ 3043.224611] [child_rip+0xa/0x12] child_rip+0xa/0x12 Jun 23 01:43:36 zirael kernel: [ 3043.224630] [kthread+0x0/0x80] kthread+0x0/0x80 Jun 23 01:43:36 zirael kernel: [ 3043.224635] [child_rip+0x0/0x12] child_rip+0x0/0x12 ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 242489] Re: WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz
** Attachment added: version.log http://launchpadlibrarian.net/15545933/version.log -- WARNING: vc_resize() - events kernel thread dying on 2.6.24-18-openvz https://bugs.launchpad.net/bugs/242489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
