Running Confluence with firewall on Linux
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Atlassian applications allow the use of Firewalls within our products, however Atlassian Support does not provide assistance for configuring it. Consequently, Atlassian cannot guarantee providing any support for it.
If assistance with conversions of certificates is required, please consult with the vendor who provided the certificate.
If assistance with configuration is required, please raise a question on Atlassian Answers.
Solution
Overview
This documentation describes how to allow Confluence to run behind a firewall (Iptables) on Linux.
Verifying the firewall rules
1- To make sure your firewall is enable, run the following command:
1
iptables -nL2 - Allowing the Confluence's port to be reached behind the firewall:
1
2
3
iptables -I INPUT -p tcp --dport 8090 -j ACCEPT
iptables -I FORWARD -p tcp --dport 8090 -j ACCEPT
iptables -P OUTPUT ACCEPT3 - Add these lines if you are running Confluence on port 8443:
1
2
iptables -I INPUT -p tcp --dport 8443 -j ACCEPT
iptables -I FORWARD -p tcp --dport 8443 -j ACCEPT4 - Allowing the forward connections:
1
2
Add the following line on /etc/sysctl.conf
net.ipv4.ip_forward = 15 - The last thing to do is reboot your Linux.
1
rebootℹ️ If you are running Centos 7, the management of firewall has changed. To disable the firewall follow the steps below:
Disable Firewalld
To disable firewalld, run the following command as root:
1
systemctl disable firewalldStop Firewalld
To stop firewalld, run the following command as root:
1
systemctl stop firewalldCheck the Status of Firewalld
To check the status of firewalld, run the following command as root:
1
systemctl status firewalldℹ️ If you prefer to keep Firewalld active, there are a few more steps to be taken:
1- Allowing ports and make the change permanent with the following commands:
1
2
3
4
firewall-cmd --add-port=8090/tcp
firewall-cmd --permanent --add-port=8090/tcp
firewall-cmd --add-port=8443/tcp
firewall-cmd --permanent --add-port=8443/tcp2- Add the services:
1
2
3
4
firewall-cmd --add-service=http
firewall-cmd --permanent --add-service=http
firewall-cmd --add-service=https
firewall-cmd --permanent --add-service=https3- To finish, the following commands are required to configure the forwarding:
1
2
3
4
5
firewall-cmd --add-masquerade
firewall-cmd --permanent --add-masquerade
firewall-cmd --direct --add-rule ipv4 nat OUTPUT 1 -p tcp -d 127.0.0.1 --dport 443 -j REDIRECT --to-ports 8443
firewall-cmd --direct --add-rule ipv4 nat OUTPUT 1 -p tcp -d <confluence-ip> --dport 443 -j REDIRECT --to-ports 8443Was this helpful?