Displaying 20 results from an estimated 30000 matches similar to: "Issues with exposing USB serial dongle to guest VM"
2018 Jul 03
2
upgrade 7.4 --> 7.5: dbus broken
Hi folks,
after upgrading a Centos container (LXC) from 7.4 to 7.5 I got
this:
# systemctl status
Failed to get D-Bus connection: Connection refused
# busctl
Failed to connect to bus: Connection refused
# ps -ef | grep db[u]s
dbus 55 1 0 Jul02 ? 00:00:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
# lsof -p 55
COMMAND PID
2014 Jan 07
1
Security: Best practices, apparmor, -L, -R, -U
Hey List, Hey Guus,
I would now like to secure my tinc installation. From the man page I see
the following.
-L
I put EXTRA="-L" in /etc/default/tinc and tinc still works.
-R
Do I have to put libraries and device files under /etc/tinc/NETNAME to
build a functional chroot jail ?
Currently lsof reports these open resources for tincd:
lsof -p $( pgrep tincd ) -n
COMMAND PID USER FD
2011 Jun 14
1
leaving ports open for tftp
hey guys,
I have a really silly question for you! I just built a cobbler server that I am using to bare metal some boxes. But I am a bit n00b and need to figure out which ports to open in iptables.
Here's a start:
xinetd 2031 root 8u IPv4 94306 UDP *:tftp
in.tftpd 9203 root cwd DIR 253,0 4096 588097 /tftpboot
2010 Feb 14
2
Priv Sep SSH has / as CWD
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi,
This may or may not be a bug. However, it is DEFINITELY NOT how I would
expect and want to see sshd work!
If you run lsof against sshd on a privilege separated user, it shows
that sshd's CWD is /. I would hope that the CWD would be at a minimum
/var/empty/sshd and I would really have thought it would be something
along the lines of
2017 Mar 17
0
USB card reader causing qemu-kvm SEGV's
Adding Paolo and Miroslav.
On Sun, Mar 12, 2017 at 11:41 PM, Philip Prindeville <
philipp_subx at redfish-solutions.com> wrote:
> Hi.
>
> I have a Supermicro 5018D-FN4T (Xeon D-1541 based SBC) that I use for
> virtualization. I?m running Centos 7.3 on it (updated), with the
> CentOS-QEMU-EV.repo repository as the source for virtualization packages.
>
> I run an Ubuntu
2014 Sep 26
0
Re: [libvirt] increase number of libvirt threads by starting tansient guest doamin - is it a bug?
On 26.09.2014 09:46, ustermann78@web.de wrote:
> hello,
>
> if i start a transient guest doamin via "virsh create abcd.xml" i see an additional libvirt thread and also some open files:
>
> pstree -h `pgrep libvirtd`
> libvirtd───11*[{libvirtd}]
>
> libvirtd 3016 root 21w REG 253,0 6044 1052094 /var/log/libvirt/libxl/abcd.log
> libvirtd
2017 Mar 12
2
USB card reader causing qemu-kvm SEGV's
Hi.
I have a Supermicro 5018D-FN4T (Xeon D-1541 based SBC) that I use for virtualization. I?m running Centos 7.3 on it (updated), with the CentOS-QEMU-EV.repo repository as the source for virtualization packages.
I run an Ubuntu 16.04-2 guest VM on it, which is ordinary enough. What?s perhaps less ordinary is that I?ve attached a Lexar Media, Inc. ?Lexar Professional Workflow CR1 CFast 2.0 USB
2012 Apr 21
2
nfsen daemon dies for unknown reason
Hello,
I am using nfsen 1.3.5 (http://nfsen.sourceforge.net/) on CentOS 5.8 x86_64 (running as a VM on a KVM Host).
For those not knowing it, nfsen is using php and perl and it allows graphing and analysis of (Cisco routers) netflow data captured using nfdump.
Often (about once a day) nfsen crashes for unknown reason. For example:
# /data/nfsen/bin/nfsen status
NfSen version: 1.3.5
2015 Apr 15
0
Routing setup questions
I am experimenting with routing tables to obtain a little
understanding of how things work.
I have a kvm hypervisor host (KVM1) with two physical Ethernet nics
configured as bridges (br0 and br1). KVM1 br0 is configured with a
public ipv4 address [x.y.z.42/24] and br1 is configured with a private
ipv4 address [192.168.216.42/24]. A second kvm hypervisor, KVM2, is
similarly configured albeit with
2014 Sep 26
5
increase number of libvirt threads by starting tansient guest doamin - is it a bug?
hello,
if i start a transient guest doamin via "virsh create abcd.xml" i see an additional libvirt thread and also some open files:
pstree -h `pgrep libvirtd`
libvirtd───11*[{libvirtd}]
libvirtd 3016 root 21w REG 253,0 6044 1052094 /var/log/libvirt/libxl/abcd.log
libvirtd 3016 root 22r FIFO 0,8 0t0 126124 pipe
libvirtd 3016 root
2009 Oct 01
0
Registry backend changes with CTDB not noticed by other nodes?
Hi!
I'm working on a 2-node ctdb-clustered Samba. I'm almost there (hope so),
but Samba doesn't seem to notice the modified registry that is distributed
with ctdb.
On a single node the registry is working. CTDB picks up changes, including
the registry, and they are synced to the other node (verified with net conf
addshare/delshare and tdbdump on /var/ctdb/persistent/registry*).
The
2010 Nov 26
1
How to know if dovecot director is running OK?
I'm using director on dovecot 2.0
At present, I know that two instances are connected, If I stop of one
system, then I can watch how to the connections are closed on port
5000. I defined 5000 as director port.
I have one user (user1) connected to kvm1 (192.168.13.100) and kvm2
(192.168.13.101) servers v?a telnet
telnet kvm1 143 and then login
telnet kvm2 143 and then login
If try to
2009 Aug 13
1
[PATCHv3 2/2] vhost_net: a kernel-level virtio server
What it is: vhost net is a character device that can be used to reduce
the number of system calls involved in virtio networking.
Existing virtio net code is used in the guest without modification.
There's similarity with vringfd, with some differences and reduced scope
- uses eventfd for signalling
- structures can be moved around in memory at any time (good for migration)
- support memory
2009 Aug 13
1
[PATCHv3 2/2] vhost_net: a kernel-level virtio server
What it is: vhost net is a character device that can be used to reduce
the number of system calls involved in virtio networking.
Existing virtio net code is used in the guest without modification.
There's similarity with vringfd, with some differences and reduced scope
- uses eventfd for signalling
- structures can be moved around in memory at any time (good for migration)
- support memory
2007 Aug 22
0
rpm command freezing
Howdy,
If ever somebody here might have encountered this, the rpm -qa commands just
stuck for ages on my box ( honestly this is rhel 3 box).
I done rebuilding already the /var/lib/rpm/__db* as per KB article but to no
avail.
Any additional hints what's to look for?
One thing I notice w/c I think is weird is that we I losf the process of rpm
-qa that's freezing, it's looking
2009 Nov 09
3
[PATCHv9 3/3] vhost_net: a kernel-level virtio server
What it is: vhost net is a character device that can be used to reduce
the number of system calls involved in virtio networking.
Existing virtio net code is used in the guest without modification.
There's similarity with vringfd, with some differences and reduced scope
- uses eventfd for signalling
- structures can be moved around in memory at any time (good for
migration, bug work-arounds
2009 Nov 09
3
[PATCHv9 3/3] vhost_net: a kernel-level virtio server
What it is: vhost net is a character device that can be used to reduce
the number of system calls involved in virtio networking.
Existing virtio net code is used in the guest without modification.
There's similarity with vringfd, with some differences and reduced scope
- uses eventfd for signalling
- structures can be moved around in memory at any time (good for
migration, bug work-arounds
2009 Aug 19
1
[PATCHv4 2/2] vhost_net: a kernel-level virtio server
What it is: vhost net is a character device that can be used to reduce
the number of system calls involved in virtio networking.
Existing virtio net code is used in the guest without modification.
There's similarity with vringfd, with some differences and reduced scope
- uses eventfd for signalling
- structures can be moved around in memory at any time (good for migration)
- support memory
2009 Aug 19
1
[PATCHv4 2/2] vhost_net: a kernel-level virtio server
What it is: vhost net is a character device that can be used to reduce
the number of system calls involved in virtio networking.
Existing virtio net code is used in the guest without modification.
There's similarity with vringfd, with some differences and reduced scope
- uses eventfd for signalling
- structures can be moved around in memory at any time (good for migration)
- support memory
2017 Oct 31
3
Cross compiling for Baremetal ARM without using GCC
Dear LLVM developers,
Hello,
I'm trying to find a way of cross-compiling my c code against Baremetal Cortex-M device (so target triple will be arm-none-eabi) only using LLVM/Clang, and not using anything from GNU (ld or libc).
I'm doing this to know which one of LLVM/clang and GCC produces smaller flash image size because saving flash is a big deal in our projects.
1) When I just follow