![]() The solution is to simply turn off checksum-offload on the virtual xen interfaces for pfSense in the TX direction only (TX towards the VM itself). ![]() However pf in FreeBSD does not handle them correctly and will drop them, leading to broken performance. The majority of operating systems know to expect this when virtualized and handle Ethernet frames with empty checksums without issue. This is because network traffic between VMs in a hypervisor is not populated with a typical Ethernet checksum, since they only traverse server memory and never leave over a physical cable. Now is the most important step: we must disable TX checksum offload on the virtual xen interfaces of the VM. Guest Tools are now installed and running, and will automatically run on every boot of the VM. Next: Reboot the system to have the guest tools started (installer doesn't do this the first time): Scroll down to os-xen and click the plus sign next to it to install them. Open the web UI on http(s)://your-configured-ip and go to: Option 2 is via the Web GUI (only available on OPNsense): Ln -s /usr/local/etc/rc.d/xenguest /usr/local/etc/rc.d/xenguest.sh SSH (or other CLI method) to the VM and perform the following:Įcho 'xenguest_enable="YES"' > /etc/rc.conf.local Now that you have the VM running, we need to install guest utilities and tell them to run on boot. There are 2 ways of doing that, either using the CLI (pfSense or OPNsense) or the Web UI (OPNsense). Continue through the installer like normal.When creating the VM, choose the other install media VM template.PfSense and OPNsense do work great in a VM, but there are a few extra steps that need to be taken first. The goal of this special config is to keep the xensource.log files for one month, and to limit the number of log files to 100. There is normally no need to run it manually, a cron task /etc/cron.d/xapi-logrotate.cron is present to schedule it each hour. Xensource.log has many particular and different configuration parameters, so another logrotate config is used: /etc/xensource/nf in a shell script /opt/xensource/libexec/xapi-logrotate.sh that executes logrotate with this specific config. (Conf location: /etc/rsyslog.d/nf) # Specific config: xensource.log # rsyslogīecause a file must be rotated if a log exceeds 100 MiB, the rsyslog daemon is used to trigger automatically the /etc/cron.daily/logrotate script without waiting for the logrotate cron job to run. its size is greater than 100 MiB (since XCP-ng 8.2.1)Īlso a file is compressed after two rotations, the first time it is just renamed.This configuration is used by the daily cron task /etc/cron.daily/logrotate. The configuration is located in /etc/nf the /etc/logrotate.d directory is included by this file for additional rules (for example for specific packages after RPM installation like xha, blktap, SMlog.). Logrotate is the tool to administrate the rotation, compression, removal. Avoid modifying them and ask for advice if you have a use case that appears to require such modifications. There is no need to re-enable the host: it is done automatically when it starts.Īny manual modification to the configuration files described below may prevent future XCP-ng updates to update the contents of those files. (After a reboot or host startup) Move VMs back to the host if appropriate. If you prefer to do it from command line, this is equivalent to: xe host-disable host=. This will disable the host, then evacuate its VMs automatically to other hosts. * Put the host into maintenance mode from Xen Orchestra. If all your VMs are "agile", that is, they're not tied to local storage or local devices (device pass-through), and if there are enough resources on other hosts in the pool, the above can be simplified as: Alternatively, you can also disable HA on the pool for the duration of the maintenance operations to avoid issues caused by HA. You don't want the other hosts to believe that a host crashed or self-fenced - and take consecutive action - when it's actually planned maintenance. Step 1 is especially important if High Availability is enforced on your pool.
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