# Firewall issue with running multiple containers after upgrade

**URL:** https://meta.discourse.org/t/firewall-issue-with-running-multiple-containers-after-upgrade/178507
**Category:** Self-hosting
**Created:** [January 31, 2021, 10:03pm UTC](https://meta.discourse.org/t/firewall-issue-with-running-multiple-containers-after-upgrade/178507 "2021-01-31T22:03:52Z")
**Posts on this page:** 1
**Showing post:** 25

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### Author: ![AstonJ](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/astonj/32/215041_2.png) [@AstonJ](https://meta.discourse.org/u/AstonJ)
#### Post date: [February 5, 2021, 5:06am UTC](https://meta.discourse.org/t/firewall-issue-with-running-multiple-containers-after-upgrade/178507/25 "2021-02-05T05:06:31Z")

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I was thinking perhaps there might have been something else that was a part of this update that caused the issue - but in fairness I hadn’t upgraded the forums for a while (as I was holding off) so it could be related to one of the other updates.

Shall we split the non-PG posts here into a dedicated Topic to see if we can get to the bottom of it? I’m sure it could prove useful for others too ([the guide](https://meta.discourse.org/t/how-to-set-up-discourse-on-a-server-with-existing-apache-sites/30013) I wrote for running this kind of set-up is by far my most popular thread here - so it certainly appears that many others are interested in running Discourse on a forum with other sites).

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_[View the full topic](https://meta.discourse.org/t/firewall-issue-with-running-multiple-containers-after-upgrade/178507)._