How iptables tables and chains are traversed
I know linux has 3 built-in tables and each of them has its own chains as follow:
iptables
Port forward to VPN Client?
I’ve run into a bit of a puzzle and haven’t had much luck finding a solution. Right now I am (sadly) connected to the net via Verizon 3G. They filter all incoming traffic so it is impossible for me to open ports to accept connections.
iptables forward all traffic to interface
I have two interfaces eth1 and eth0. I want all traffic on eth0to be forwarded to eth1. I created an iptable rule like this:
Only allow certain outbound traffic on certain interfaces
I have rather an odd issue. I have a server with two network interfaces eth0 and eth1. Each are connected to a different network. Each network has a internet gateway. The server has various outbound connections: http (some scripts on the server scrape websites), nfs client, samba client, dns client and an email fetcher to name but a few.
Is it better to set -j REJECT or -j DROP in iptables?
There’s an example of iptables rules on archlinux wiki:
Why do iptables rules disappear when restarting my Debian system?
I add this rule:
Difference between SNAT and Masquerade
I am confused what’s the actual difference between SNAT and Masquerade?
Linux as router with multiple internet providers
Linux as router: I have 3 Internet providers, each with its own modem.
Configuring OpenVPN to use Firewalld instead of iptables on Centos 7
I need to configure OpenVPN on Centos 7 using firewalld.
OpenVPN Client and Server on same machine – Server doesn’t allow connections when client is connected
I am new to this community and am hopeful that somebody can help me. Please let me know if I haven’t posted all required information.