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00:50:56 is a VMware MAC address. If ESX and this FreeBSD system is a VM, you must enable promiscuous mode on the port group that VM is connected to on both its ports. Though tcpdump on the VM should still show it in that case, it'd just be dropped at the ESX level. Post the output of 'ifconfig bridge0' and 'ifconfig bridge0 addr'.


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Have a look at the resolv_conf_local_only option in resolvconf.conf. It says: If a local name server is configured then the default is just to specify that and ignore all other entries as they will be configured for the local name server. Set this to NO to also list non-local nameservers. This will give you working DNS even if the local nameserver ...


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use mysqltunner.pl to show you report -------- Performance Metrics ----------------------------------------------- [--] Total buffers: 168.0M global + 2.8M per thread (10 max threads) [OK] Maximum reached memory usage: 179.0M (18.04% of installed RAM) [OK] Maximum possible memory usage: 195.5M (19.70% of installed RAM) 2.8M is my every thread memory ...


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Use one slice/partition dedicated for ZFS per physical disc and leave some space left unpartitioned. That way if you ever need to replace a drive and the replacement is 10 sectors smaller, you'll still be able to do it (http://www.freebsddiary.org/zfs-with-gpart.php). That's what Solaris automatically does, that's what FreeNAS does (https://forums.freenas....


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As a workaround I've added custom devd job to run dhclient without checks: # cat /usr/local/etc/devd/dhclient.conf notify 1 { match "system" "IFNET"; match "type" "LINK_UP"; media-type "ethernet"; match "subsystem" "em0"; action "dhclient $subsystem"; }; and set ifconfig_em0="down" in the rc.conf


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I can mark this as closed and solved (for now) though with no obvious reason/solution. I was advised by the hosting provider to change from the virtio driver to e1000. In the process of preparing to do this, the VPS was stopped (from the console) and then restarted. Though still using the virtio driver, bandwidth is now much, much better and is symmetric. ...


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With DELL, it's a bit complicated, specially for: Firmware updates (when LifeCycle is buggging, and it's happening very oftenly), you will have to use the very slow ISO from DELL (http://goo.gl/GSuiWp) DELL RAID controller (AVOID them !!!) - Replace them by ARECA for example that support officialy FreeBSD DELL support (they have no idea what is FreeBSD, so ...


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The most obvious solution would be to strip the query string off before it reaches mod_cache. And the most obvious module for that would be mod_rewrite. But that won't work, because mod_cache started using purposefully the unchanged version of the query-string in 2006.


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nc establishes a bi-directional connection. I.e. it sends stdin from host B to host A as well as the desired one from A to B. Use -d on host B to ignore stdin. -N on host A is still needed to close the TCP connection on EOF. In summary Host A: tar cf - stuff | dd | nc -N -l 12987 Host B: nc -d a.example.com 12987 | dd | tar tf -



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