I have problem with iptables on Ubuntu 18.04 before that I used to use with Centos 7 and Red Hat and I can simply restart with
systemctl restart iptables
but on Ubuntu it does not work. I could not find iptable under init.d neither.
Can anybody help me out how can I restart or reload it on Ubuntu 18.04?
I redirected traffic for port 80 to 8080 on my machine with
sudo iptables -A PREROUTING -t nat -p tcp --dport 80 -j REDIRECT --to-ports 8080
It works fine for all the world except my own machine. I am a developer and I need to redirect port 80 to 8080 for myself.
My IP is 192.168.0.111
My web server runs on port 8080
I wish to open website from http://192.168.0.111/ instead of http://192.168.0.111:8080/ from same machine where server runs.
I create the rules to iptables. But, when I restart the computer, the rules don't work! How to save the rules on Ubuntu ?
The was problem solved!
do:
After of the write the commands iptables, do:
1. sudo su
2. iptables-save > /etc/iptables.rules
3. In /etc/network/if-pre-up.d/iptables,put:
#!/bin/sh
iptables-restore < /etc/iptables.rules
exit 0
4. After, in /etc/network/if-post-down.d/iptables,put:
#!/bin/sh
iptables-save -c > /etc/iptables.rules
if [ -f /etc/iptables.rules ]; then
iptables-restore < /etc/iptables.rules
fi
exit 0
5. After, give permission to the scripts:
sudo chmod +x /etc/network/if-post-down.d/iptables
sudo chmod +x /etc/network/if-pre-up.d/iptables
More information: https://help.ubuntu.com/community/IptablesHowTo#Saving_iptables Good luck!
I used to run a service on port 25570 I'm now changing it to run on port 25565 but I still want people who try to access it on the old port to have access to the service. So I'd like to forward port 25570 to 25565 on the same machine.
I know there's a lot of questions that talk about forwarding to a different machine but I was wondering if the method is different when using the same machine?
I would like to secure my server and it seems that IPtables is one of the first steps. Unfortunately editing the rules in a terminal is a bit complicated and dangerous (those who ever did an iptables -F will know what I mean ;) ). Could you recommend any good graphical interfaces for managing my IPtables rules?