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== F. Configuration tips == '''security''' * do not enable features you do not need * do not give linux capabilities to vservers without really good reason * do not run services on the host, except for the minimal set (sshd, ntpd<sup>1</sup>, syslog) * make sure that the 000 barrier is there and working * do not use local loopback inside a vserver * make sure your /proc entries are restricted * try to follow security fixes (kernel) '''stability''' * do not enable SMP in kernel used on single processor machines (unless Xeon/P4 HT) * do not select kernel features/drivers your hardware doesn't need * avoid preemption * do not run services on the host, except for the minimal set (sshd, ntpd, syslog) * avoid cronjobs starting on all servers at once (smart daily cron rotation) * do not use experimental or development kernels/patches unless you absolutely need the provided features <sup>1</sup> - Contrary to what the FAQ says, it *is* possible to run ntpd within a vserver. See [[VirtualiseNTP]]. <span id="g.-references"></span>
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