$ sudo tshark port 80 and host server
Capturing on en0
  0.000000   10.1.10.27 -> 10.1.10.42   TCP 78 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 WS=16 TSval=838692417 TSecr=0 SACK_PERM=1
  0.100136   10.1.10.27 -> 10.1.10.42   TCP 78 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 WS=16 TSval=838692514 TSecr=0 SACK_PERM=1
  0.200475   10.1.10.27 -> 10.1.10.42   TCP 78 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 WS=16 TSval=838692613 TSecr=0 SACK_PERM=1
  0.301168   10.1.10.27 -> 10.1.10.42   TCP 78 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 WS=16 TSval=838692713 TSecr=0 SACK_PERM=1
  0.401894   10.1.10.27 -> 10.1.10.42   TCP 78 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 WS=16 TSval=838692813 TSecr=0 SACK_PERM=1
  0.502935   10.1.10.27 -> 10.1.10.42   TCP 78 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 WS=16 TSval=838692913 TSecr=0 SACK_PERM=1
  0.604055   10.1.10.27 -> 10.1.10.42   TCP 78 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 WS=16 TSval=838693013 TSecr=0 SACK_PERM=1
  0.806023   10.1.10.27 -> 10.1.10.42   TCP 62 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1
  1.107855   10.1.10.27 -> 10.1.10.42   TCP 62 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1
  1.610212   10.1.10.27 -> 10.1.10.42   TCP 62 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1
  2.615685   10.1.10.27 -> 10.1.10.42   TCP 62 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1
  4.627673   10.1.10.27 -> 10.1.10.42   TCP 62 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1
  6.639141   10.1.10.27 -> 10.1.10.42   TCP 62 51208 > http [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1
^C13 packets captured