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#httpd

2 posts1 participant0 posts today
Public *
Menel
Updated Version of the apache http caching setup for snac, including proxy media

I already wrote about caching here.
Now I extended what I cache a bit.
This was because after enabling the option to proxy media, I've seen access to the file paths /x/ and /y/ in addition to the path were snac stores the media that I include in my own posts ( /s/ ).
There are two locations to proxy media, depending if you requests the media via the mastodon api or via the web. (/x/ and /y/), oh and I added the nodeinfo2.0 path too, because I've noticed it was queried all the time by a lot of instances and it gives me pleasure to see something cached handed out in the access logs. 🙂 (I guess it is actually irrelevant for the system resources)
This is the updated setup:
Enable the relevant modules:

a2enmod expires cache cache_disk

Be sure "htcacheclean" is running to clean up the old disk cache. (under debian see /etc/default/apache-htcacheclean or else the relevant systemd service or whatever)
Then add this to the httpd Virtualhost config:

<LocationMatch "^/social/[^/]+/[xys]/|^/social/nodeinfo_2_0">
CacheEnable disk
Header set Cache-Control "max-age=86400, public" "expr=%{REQUEST_STATUS} == 200"
ExpiresActive On
ExpiresDefault "access plus 86400 seconds"
</LocationMatch>
This will use the disk cache to cache everything under the $username/s/, /x/ and /y/ paths, as well as for the /nodeinfo_2_0 path, utilizing mod_expires to generate the appropriate cache headers (for lazy ones like me). In this case caching it for 1 day.
Further reading and all options are explained under https://httpd.apache.org/docs/2.4/caching.html (and ff)

The Header that I set here, on the condition of Status code 200, is needed for the path /y/, because snac set no-cache on that location and mod_expires will honor that if we don't override it. I set it to the same Cache-Control value as mod_expires would. (I use mod_expires because it will additionally calculate the date and put that in the expires header. (hence the name I guess 😀 )

#Fediverse #Hosting #ITNotes #apache2 #httpd #Ownyourdata #Server #Snac #Snac2 #Tipsandtricks #Tutorial #Debian #caching
:xmpp:
snikket.deMenel (@menel@snikket.de)121 following, 80 followers · See updated version here: https://snikket.de/social/menel/p/1740228486.456200 Original: After seeing **Improving snac Performance with Nginx Proxy Cache** from @itnotes@snac.it-notes.dragas.net via --- https://snac.it-notes.dragas.net/itnotes/p/1738139676.258050 https://it-notes.dragas.net/2025/01/29/improving-snac-performance-with-nginx-proxy-cache/ --- I decided to prematurely optimize and adjust this for my apache2 httpd server in debian where I run snac. I've never done any
Public *
Menel
See updated version here:
https://snikket.de/social/menel/p/1740228486.456200

Original:
After seeing
Improving snac Performance with Nginx Proxy Cache from @itnotes@snac.it-notes.dragas.net via
https://snac.it-notes.dragas.net/itnotes/p/1738139676.258050
https://it-notes.dragas.net/2025/01/29/improving-snac-performance-with-nginx-proxy-cache/
I decided to prematurely optimize and adjust this for my apache2 httpd server in debian where I run snac.

I've never done any caching etc before so it was a nice adventure to learn something new. The documentation helped and in the end it wasn't very hard. I learned a bit about some http headers and regex on the way too.

Basically it works like this:
Enable the relevant modules:

a2enmod expires cache cache_disk

Be sure "htcacheclean" is running to clean up old disk cache. (under debian see /etc/default/apache-htcacheclean or else the relevant systemd service)
Then add to the snac virtualhost config:

    CacheRoot /var/cache/apache2/mod_cache_disk
    CacheQuickHandler off
    CacheMaxFileSize 10000000
    CacheLock on
    ##Optional while testing stuff;
    CacheDetailHeader on
    
    ##My Instance is under "/social"; so this needs to be adapted:
    <LocationMatch "^/social/[^/]+/s">
    CacheEnable disk
    ExpiresActive On
    ExpiresDefault "access plus 30 days"
    </LocationMatch>
This will use the disk cache to cache everything under the /s/ Path, same as the original ngnix tutorial, Utilizing the mod_expires to generate the appropriate cache headers (for lazy ones like me), In this case caching it for 30 days.
Further reading and all options explained under https://httpd.apache.org/docs/2.4/caching.html ff

Thanks for the initial tutorial @itnotes@snac.it-notes.dragas.net

Edit:
Oh and don't hesitate to tell me what I did stupid while setting this up, maybe in nicer words, if it is. And also I can't get the markdown Code formatting working apparently. Well. Sorry for all the edits.

#Fediverse #Hosting #ITNotes #Networking #apache2 #httpd #Ownyourdata #Server #Snac #Snac2 #Social #Tipsandtricks #Tutorial #Web #Debian
snikket.deMenel (@menel@snikket.de)121 following, 80 followers · **Updated Version of the apache http caching setup for snac, including proxy media** I already wrote about caching [here](https://snikket.de/social/menel/p/1738788742.236526) Now I extended what I cache a bit. This was because after enabling Option to [proxy media](https://comam.es/snac-doc/snac.8.html#proxy_media) I've seen access to the file paths /x/ and /y/ in addition to the path were snac stores the media that I include in my own posts ( /s/ ). There are two locations to
Public
brian
For anyone who has snac deployed with httpd on OpenBSD (especially on a resource-restricted system) and is running into lag, errors, or service crashes, I highly recommend using nginx instead of httpd. Nginx--in addition to simply being faster in general--provides easy access to media caching (see @stefano@bsd.cafe's excellent article) and robust rate-limiting/traffic throttling controls.

Switching and properly tuning my nginx config seems to be (mostly) shielding my little VPS from being overwhelmed when someone with thousands of followers boosts one of my posts.

#snac #fediverse #activitypub #openbsd #nginx #httpd
IT Notes · Improving snac Performance with Nginx Proxy Cache
More from Stefano Marinelli
Public
Martin Pugh

New blog post - Rewriting URL's using OpenBSD and httpd.conf

This is just a reminder for future me, when I forget how I got it to work next time.

There's nothing particularly interesting, unless you also get stuck trying to get a URL redirected to another directory.

martin.hatstand.org.uk/posts/2

martin.hatstand.org.ukRewriting URL's with httpd.conf · Martin's Stuff and Things
#OpenBSD#SelfHosted#LocalHosted
Public
napierge

Is it good idea to host my website with #OpenBSD #httpd without domain name, just ip address? I do not need domain because of better remembering, but there are maybe other reasons why to use domain... I suppose there should be a problem with tls and maybe https, I'd like to use https but when site is just static https may not be required.

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