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* Reorganize Signed-off-by: Tommy <contact@tommytran.io>
21 lines
1.3 KiB
Markdown
21 lines
1.3 KiB
Markdown
---
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title: "Update your Signal TLS Proxy"
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date: 2022-10-15
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tags: ['Applications', 'Linux', 'Container', 'Censorship Evasion']
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author: Tommy
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---
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![Signal](/images/plz-merge.jpg)
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Given the current censorship situation in Iran, I decided to have a look at the [Signal TLS Proxy](https://github.com/signalapp/Signal-TLS-Proxy).
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One thing immediately jumped out - the NGINX image has not been updated [for years](https://github.com/signalapp/Signal-TLS-Proxy/blob/ac94d6b869f942ec05d7ef76840287a1d1f487f9/nginx-relay/Dockerfile#L9). In fact, NGINX 1.18 is so old that it has gone end of life for [a year and a half](https://endoflife.date/nginx) as of this writing.
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If you are deploying or maintaining a Signal TLS Proxy, I highly recommend that you use the upstream `nginx:alpine` image instead.
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My Docker Compose setup can be found [here](https://github.com/tommytran732/Signal-TLS-Proxy). I have also fixed the missing `:Z` flag for mountpoints and and dropped privileges to reduce the attack surface. I made a couple of pull requests for these changes, but Signal is being very slow on reviewing and merging them, so... yeah.
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- [Drop capabilities](https://github.com/signalapp/Signal-TLS-Proxy/pull/24)
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- [Use upstream NGINX image](https://github.com/signalapp/Signal-TLS-Proxy/pull/23)
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- [Add :Z for SELinux](https://github.com/signalapp/Signal-TLS-Proxy/pull/22)
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