title: What is acvpnagent?
body: <p>I am using MacOS High Sierra (10.13.4) and when I check the /var/log/system.log, I find that a process called <strong>acvpnagent</strong> is constantly active when my computer is in sleep mode. </p>
  
  <p>Here is some pieces of log file:</p>
  
  <blockquote>
    <p>Apr 23 02:32:59 localhost acvpnagent[68]: A new network interface has been detected.
    Apr 23 02:32:59 localhost acvpnagent[68]: Function: logInterfaces File: ../../vpn/AgentUtilities/Routing/InterfaceRouteMonitorCommon.cpp Line: 477 IP Address Interface List: FE80:0:0:0:1032:9218:D382:C82 192.168.0.102 FE80:0:0:0:C4A7:49FF:FEC1:C5E5 FE80:0:0:0:5E15:7BA0:ABCE:CC58 FE80:0:0:0:1B1B:F6E8:913D:248A 
    Apr 23 02:32:59 localhost acvpnagent[68]: Function: netInterfaceNoticeCategoryHandler File: ../../vpn/Agent/MainThread.cpp Line: 7972 Network Interface change detected, refreshing physical MAC addresses
    Apr 23 02:32:59 localhost acvpnagent[68]: Function: getInterfacesInternal File: ../../vpn/Common/Utility/NetInterface_unix.cpp Line: 1709 missing PPP destination address for interface "utun0".  Check profile PPPExclusion (set to Automatic?) or contact your administrator.</p>
  </blockquote>
  
  <p>So what is this process? I tried "$ locate acvpnagent" but I cannot find it. Why does this process attempt to use root privilege?
  BTW I was using Shadowsocks then.</p>