title: How to enable TUN on Debian VPS?
body: <p>I have a VPS with Debian7</p>
  
  <p>Need to setup OpenVPN on it</p>
  
  <p>So I had installed and configured OpenVPN but now um stuck with TUN error.</p>
  
  <p><code>lsmod | grep tun</code> - returns empty, so I need to load tun module to kernel.</p>
  
  <p><code>modprobe tun</code> - returns this</p>
  
  <blockquote>
    <p>modprobe: ERROR: ../libkmod/libkmod.c:514 lookup_builtin_file() could
    not open builtin file
    '/lib/modules/2.6.32-042stab127.2/modules.builtin.bin' modprobe:<br/>
    FATAL: Module tun not found in directory
    /lib/modules/2.6.32-042stab127.2</p>
  </blockquote>