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Minor typo fixes

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Signed-off-by: Tommy <contact@tommytran.io>
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Tommy 2022-12-27 17:21:01 -05:00
parent 866e40cf51
commit 064bcd53eb
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1 changed files with 5 additions and 5 deletions
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content/posts/linux/Slightly Improving Mailcow Security.md
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@ -30,7 +30,7 @@ smtpd_tls_mandatory_ciphers = high
These security configurations can be added/modified in `data/conf/nginx/includes/site-defaults.conf`.
## SSL Ciphers
### SSL Ciphers
Consider only supporting ciphers matching that of TLSv1.3:
@ -38,9 +38,9 @@ Consider only supporting ciphers matching that of TLSv1.3:
ssl_ciphers "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256";
```
## HSTS
### HSTS
Consider adding `includeSubDomains;`to the HSTS configuration if all of your services are using HTTPS:
Consider adding `includeSubDomains;` and `preload;` to the HSTS configuration if all of your services are using HTTPS:
```
add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
@ -80,13 +80,13 @@ add_header Content-Security-Policy "default-src 'none'; connect-src 'self' https
add_header Content-Security-Policy "default-src 'none'; connect-src 'self' https://api.github.com https://www.gravatar.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https://www.gravatar.com; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; frame-ancestors 'none'; block-all-mixed-content; base-uri 'none'";
```
### Cross-Origin Opener, Resource, and Embedder Policies
### Cross-Origin Resource, Opener, and Embedder Policies
Mailcow does not use any cross site scripts, or documents. Thus, you should set CORP and COOP headers to their strictest configuration:
```
add_header Cross-Origin-Opener-Policy same-origin;
add_header Cross-Origin-Resource-Policy same-origin;
add_header Cross-Origin-Opener-Policy same-origin;
```
If you do not use Gravatar with SOGo, you can also set COEP to require-corp since image embedding will not be used either: