14.04 - Log of refused connections by iptables - Ask Ubuntu
Jan 10, 2014 Why do some TCP reset packets show up in my iptables log I'm not sure that this is all there is to it. Most connections are reset without a message in my log: grep -c UNKNOWN /var/www/kern.log gives me 69, while iptables -vL says that 2691 packages matched the REJECT rule. According to the above, shouldn't those numbers be equal? – tarleb Aug 14 '15 at 14:14 How to configure firewall in Ubuntu 18.04 - LinuxConfig.org
Disable UFW. Before install iptables, we should disable UFW First. Both UFW and ubuntu iptables …
I'm not sure that this is all there is to it. Most connections are reset without a message in my log: grep -c UNKNOWN /var/www/kern.log gives me 69, while iptables -vL says that 2691 packages matched the REJECT rule. According to the above, shouldn't those numbers be equal? – tarleb Aug 14 '15 at 14:14 How to configure firewall in Ubuntu 18.04 - LinuxConfig.org
At work, I needed to log and block SSLv3 connections on ports 993 (IMAPS) and 995 (POP3S) using iptables. So, I combined Gert van Dijk's How to take down SSLv3 in your network using iptables firewall?(POODLE) with Prevok's answer and came up with this: iptables -N SSLv3 iptables -A SSLv3 -j LOG --log-prefix "SSLv3 Client Hello detected: " iptables -A SSLv3 -j DROP iptables -A INPUT \ -p tcp
How to Install Iptables on Ubuntu Server 14.04 - e Learning Disable UFW. Before install iptables, we should disable UFW First. Both UFW and ubuntu iptables … How To Configure iptables Firewall In Linux - LinuxAndUbuntu Dec 07, 2019