Linux kernel.

IPVS runs on a host and acts as a load balancer in front of a cluster of real servers. IPVS can direct requests for TCP
and UDP-based services to the real servers, and make services of real servers appear as virtual services on a single IP address.

## IPVS vs. IPTABLES

                        notRequested()
                        byConstraint()
                        byAncestor()
                    }
                }
            }
        }
    }

    void "can deal with platform upgrades"() {
        given:
        repository {
            'org:platform:1.0'() {
                constraint(group: 'org', artifact: 'bar', version: '1.0')

			if err == nil {
				return nil
			}
			// We're in a bit of trouble here; at this
			// point we've successfully renamed tmpProjid
			// to the real thing, but renaming tmpProject
			// to the real file failed.  There's not much we
			// can do in this position.  Anything we could do
			// to try to undo it would itself be likely to fail.
		}
		os.Remove(tmpProjects)
	}

  // The source IPs are listed from (in order):
  // 1. X-Forwarded-For request header IPs
  // 2. X-Real-Ip header, if not present in the X-Forwarded-For list
  // 3. The remote address for the connection, if it doesn't match the last
  //    IP in the list up to here (X-Forwarded-For or X-Real-Ip).
  // Note: All but the last IP can be arbitrarily set by the client.
  // +optional
  // +listType=atomic

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