iptables applied in local machine, can't ssh remote machine after chain changed to DROP

Linux and Unix-Like Red Hat
1

I want to SSH to 192.168.1.15 Server from my machine, my ip was 192.168.1.99

Source Destination was UP, with IP 192.168.1.15.

This is LAN Network there are 30 Machine's Connected to the network and working fine, I'm Playing around the local machine's because I need to apply the same rules in Production VPS

I have applied the below iptables in my machine 192.168.1.99, Now i can't receive any packets from Outside and i can't send any packets Outside, While applying the Below Chain

    iptables -P INPUT DROP
    iptables -P OUTPUT DROP
    iptables -P FORWARD DROP

After the above CHAIN i have added the Below rules and it want to allow ssh from machine to 192.168.1.15 to access the 192.164.1.15 but still i can't access 192.168.1.15

iptables -A INPUT -p tcp -i eth0 --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
    iptables -A OUTPUT -p tcp -o eth0 --sport 22 -m state --state ESTABLISHED -j ACCEPT
    iptables -A OUTPUT -o eth0 -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
    iptables -A INPUT -i eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT

Any one please check wether my rules are right. Still I can't access the machine 15

2

The rules pertaining the connection from 192.168.1.99 to destination port 22 on 192.168.1.15 are:

And they should be adequate to allow access to 192.168.1.15

What are the lines order of them?
Please, post the output of iptables -L -n --line-number

1 Like
3

It's worked and i have replaced the eth0 with br0, cos i have a Bridge too