import re
 
regex = r"^(?P<date>\d+/\d+/\d+) (?P<time>\d{2}:\d{2}:\d{2} [AP]M).*? (?P<client>(?:[0-9]{1,3}\.){3}[0-9]{1,3}).*?] (?P<flags>.{1,4}).*? (?P<query>\S*)$"
 
test_str = ("4/19/2020 11:59:09 PM 2604 PACKET  0000014DE1921330 UDP Rcv 192.168.1.28   f975   Q [0001   D   NOERROR] A      (7)pagead2(17)googlesyndication(3)com(0)\n"
            "4/19/2020 11:59:09 PM 0574 PACKET  0000014DE18C4720 UDP Rcv 192.168.2.54    9c63   Q [0001   D   NOERROR] A      (2)pg(3)cdn(5)viber(3)com(0)")
print(re.findall(regex, test_str, re.M))

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