Category: iptables

Technology Blog

Asus Router with Merlin Firmware External Network Interface Alias How To

Asus Router with Merlin Firmware External Network Interface Alias for Cable Modem Management The external network interface alias is used for obtaining direct access to the cable modem’s management interface when the modem is in bridge modem. A reason for this would be if the cable providers network has some sort of issue that causes…
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Router to Router VPN Tunnel using Asus Routers

Router to Router VPN Tunnel using Asus Routers Over the past few years I’ve tried a few times to successfully configure a Router to Router VPN tunnel using Asus Routers. In all the articles online something always was missing. So I figured this was a good article to write about. I currently have a tunnel…
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Hadoop and ip_conntrack: table full, dropping packet

I’m pretty sure many folks have seen this specific error across multiple different linux systems specifically when iptables is enabled and the OS has thousands of connections coming in second. In my case I ran into this Examples of this are with Hadoop NameNode. Someone accidentally executed iptables -L to try to get a list…
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