How to translate these ufw rules to iptables?
Clash Royale CLAN TAG#URR8PPP
up vote
0
down vote
favorite
I want to secure my OpenVPN configuration by using a killswitch. I don't know much about networks and firewalls but I found this ufw config which works just fine.
ufw default deny outgoing
ufw default deny incoming
ufw allow out on tun0 from any to any
ufw allow in on tun0 from any to any
ufw allow out from any to 0.0.0.0 // VPN IP
Now I want to translate the ufw rules to iptables rules because I only want to allow incoming traffic from tun0 that has been initiated on my computer. (Should be more secure, right?)
My attempt to do this is the following:
iptables -A INPUT -i tun0 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A OUTPUT -o tun0 -j ACCEPT
iptables -A OUTPUT -d 0.0.0.0 -j ACCEPT // VPN IP to initiate the first connection
iptables -A OUTPUT -s 10.0.0.2 -d 10.0.0.1 -j ACCEPT // this is my localhost and local gateway
iptables -A INPUT -s 10.0.0.1 -d 10.0.0.2 -j ACCEPT
iptables -P FORWARD DROP
iptables -P INPUT DROP
iptables -P OUTPUT DROP
This configuration is not working. What am I doing wrong?
iptables vpn ufw
asked Dec 7 at 7:03
Gladiator3n
11
add a comment |
up vote
0
down vote
favorite
I want to secure my OpenVPN configuration by using a killswitch. I don't know much about networks and firewalls but I found this ufw config which works just fine.
ufw default deny outgoing
ufw default deny incoming
ufw allow out on tun0 from any to any
ufw allow in on tun0 from any to any
ufw allow out from any to 0.0.0.0 // VPN IP
Now I want to translate the ufw rules to iptables rules because I only want to allow incoming traffic from tun0 that has been initiated on my computer. (Should be more secure, right?)
My attempt to do this is the following:
iptables -A INPUT -i tun0 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A OUTPUT -o tun0 -j ACCEPT
iptables -A OUTPUT -d 0.0.0.0 -j ACCEPT // VPN IP to initiate the first connection
iptables -A OUTPUT -s 10.0.0.2 -d 10.0.0.1 -j ACCEPT // this is my localhost and local gateway
iptables -A INPUT -s 10.0.0.1 -d 10.0.0.2 -j ACCEPT
iptables -P FORWARD DROP
iptables -P INPUT DROP
iptables -P OUTPUT DROP
This configuration is not working. What am I doing wrong?
iptables vpn ufw
asked Dec 7 at 7:03
Gladiator3n
11
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I want to secure my OpenVPN configuration by using a killswitch. I don't know much about networks and firewalls but I found this ufw config which works just fine.
ufw default deny outgoing
ufw default deny incoming
ufw allow out on tun0 from any to any
ufw allow in on tun0 from any to any
ufw allow out from any to 0.0.0.0 // VPN IP
Now I want to translate the ufw rules to iptables rules because I only want to allow incoming traffic from tun0 that has been initiated on my computer. (Should be more secure, right?)
My attempt to do this is the following:
iptables -A INPUT -i tun0 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A OUTPUT -o tun0 -j ACCEPT
iptables -A OUTPUT -d 0.0.0.0 -j ACCEPT // VPN IP to initiate the first connection
iptables -A OUTPUT -s 10.0.0.2 -d 10.0.0.1 -j ACCEPT // this is my localhost and local gateway
iptables -A INPUT -s 10.0.0.1 -d 10.0.0.2 -j ACCEPT
iptables -P FORWARD DROP
iptables -P INPUT DROP
iptables -P OUTPUT DROP
This configuration is not working. What am I doing wrong?
iptables vpn ufw
asked Dec 7 at 7:03
Gladiator3n
11
I want to secure my OpenVPN configuration by using a killswitch. I don't know much about networks and firewalls but I found this ufw config which works just fine.
ufw default deny outgoing
ufw default deny incoming
ufw allow out on tun0 from any to any
ufw allow in on tun0 from any to any
ufw allow out from any to 0.0.0.0 // VPN IP
Now I want to translate the ufw rules to iptables rules because I only want to allow incoming traffic from tun0 that has been initiated on my computer. (Should be more secure, right?)
My attempt to do this is the following:
iptables -A INPUT -i tun0 -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A OUTPUT -o tun0 -j ACCEPT
iptables -A OUTPUT -d 0.0.0.0 -j ACCEPT // VPN IP to initiate the first connection
iptables -A OUTPUT -s 10.0.0.2 -d 10.0.0.1 -j ACCEPT // this is my localhost and local gateway
iptables -A INPUT -s 10.0.0.1 -d 10.0.0.2 -j ACCEPT
iptables -P FORWARD DROP
iptables -P INPUT DROP
iptables -P OUTPUT DROP
This configuration is not working. What am I doing wrong?
iptables vpn ufw
iptables vpn ufw
asked Dec 7 at 7:03
Gladiator3n
11
asked Dec 7 at 7:03
Gladiator3n
11
asked Dec 7 at 7:03
Gladiator3n
11
asked Dec 7 at 7:03
Gladiator3n
11
asked Dec 7 at 7:03
Gladiator3n
11
11
add a comment |
add a comment |
active
oldest
votes
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f486521%2fhow-to-translate-these-ufw-rules-to-iptables%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f486521%2fhow-to-translate-these-ufw-rules-to-iptables%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown