push «route 0.0.0.0 0.0.0.0»
push «redirect-gateway def1 bypass-dhcp»
push «dhcp-option DNS 208.67.220.220»
push «dhcp-option DNS 208.67.222.222»
push «dhcp-option DNS 8.8.8.8»
push «dhcp-option DNS 8.8.4.4»
push "route ip_smtp_relay 255.255.255.0"
dd if=/dev/zero of=tempfile count=512 bs=1024k conv=fdatasync
536870912 bytes (537 MB) copied, 12.0999 s, 44.4 MB/s
dd if=/dev/zero of=tempfile count=512 bs=1024k
536870912 bytes (537 MB) copied, 1.83456 s, 293 MB/s