Hello,
Have you look in other logs files in this directory?
/var/log
Not sure if this would make a difference but have you tried removing this old iptables config and only using one of those I showed above?
get Line number
sudo iptables -L --line-numbers
The delete that line
sudo iptables -D INPUT some_number
Not sure if this would help but here is mine ( INPUT), I do have a lot going on thou. I also configure logging for dropped packets.
-P INPUT DROP
-P FORWARD DROP
-P OUTPUT ACCEPT
-N LOGINPUT
-N LOGOUTPUT
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP
-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j DROP
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP
-A INPUT -i eth0 -p tcp -m tcp --dport 9912 -m state --state NEW -m recent --set --name SSH --mask 255.255.255.255 --rsource
-A INPUT -i eth0 -p tcp -m tcp --dport 9912 -m state --state NEW -m recent --update --seconds 300 --hitcount 4 --rttl --name SSH --mask 255.255.255.255 --rsource -j DROP
-A INPUT -i eth0 -p tcp -m tcp --dport 9912 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 53 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 123 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --sport 80 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --sport 443 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 10050 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 10051 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 51430 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 51412 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 51420 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 51466 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 51440 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 51411 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 27017 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 27018 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --sport 25 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -j LOGINPUT
-A INPUT -i eth0 -p tcp -m tcp --dport 9000 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --dport 51430 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -s 10.10.10.10/32 -p tcp -m tcp --dport 9300:9400 -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 389 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --sport 389 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -s 10.10.11.11/32 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 50440 -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 50440 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 2055 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --dport 2055 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --sport 5987 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --dport 2055 -m state --state ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 51415 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 5044 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --sport 5044 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 51420 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 4739 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --dport 5044 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 5044 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 51415 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 5044 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 51420 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --sport 5044 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p udp -m udp --sport 4739 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 3000 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 9091 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -i eth0 -p tcp -m tcp --dport 9833 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --sport 3306 -m conntrack --ctstate ESTABLISHED -j ACCEPT
-A INPUT -s 10.10.10.10/32 -p tcp -m tcp --dport 9300:9400 -j ACCEPT
-A INPUT -s 10.10.10.10/32 -p tcp -m tcp --dport 9200 -j ACCEPT
## Dropped Packets
-A LOGINPUT -m limit --limit 4/min -j LOG --log-prefix "DROP INPUT: "
-A LOGOUTPUT -m limit --limit 4/min -j LOG --log-prefix "DROP OUTPUT: