I am running this docker image: https://github.com/nextcloud/docker with a cloudflare tunnel, meaning the webserver would see all the traffic coming from a single ip in 172.16.0.0/12 .
The documentation says:
The apache image will replace the remote addr (IP address visible to Nextcloud) with the IP address from X-Real-IP if the request is coming from a proxy in 10.0.0.0/8, 172.16.0.0/12 or 192.168.0.0/16 by default
So I thought that this is a not a problem, as other docker images can also automagically figure out the real IP address from traffic coming from cloudflare tunnels.
In the beginning it worked fine, then it was SLOW. Like 2 full minutes to load new feeds on news, waiting ages to complete a sync, and so on. I rebooted the server on those instances, and then it worked fine for a day.
So because at the time i was running it on unraid, i blamed the lag on that OS + my weird array of HDDs with decades of usage on them. Migrated to debian on a nvme array and… same lag!
Wasted hours trying to use caddy+fpm instead of apache and it’s the same, worked fine for a day, then it was slow again.
Then I wondered: what if the program is “smart” and throttles it by itself without any warning to the admin if it thinks that an ip address is sending too many requests?
Modified the docker compose like this:
nextcloud:
image: nextcloud
became
nextcloud:
build: .
and I created a Dockerfile with
FROM nextcloud
RUN apt update -y && apt upgrade -y
RUN apt install -y libbz2-dev
RUN docker-php-ext-install bz2
RUN a2enmod rewrite remoteip
COPY remoteip.conf /etc/apache2/conf-enabled/remoteip.conf
with this as the content of remoteip.conf
RemoteIPHeader CF-Connecting-IP
RemoteIPTrustedProxy 10.0.0.0/8
RemoteIPTrustedProxy 172.16.0.0/12
RemoteIPTrustedProxy 192.168.0.0/16
RemoteIPTrustedProxy 173.245.48.0/20
RemoteIPTrustedProxy 103.21.244.0/22
RemoteIPTrustedProxy 103.22.200.0/22
RemoteIPTrustedProxy 103.31.4.0/22
RemoteIPTrustedProxy 141.101.64.0/18
RemoteIPTrustedProxy 108.162.192.0/18
RemoteIPTrustedProxy 190.93.240.0/20
RemoteIPTrustedProxy 188.114.96.0/20
RemoteIPTrustedProxy 197.234.240.0/22
RemoteIPTrustedProxy 198.41.128.0/17
RemoteIPTrustedProxy 162.158.0.0/15
RemoteIPTrustedProxy 104.16.0.0/12
RemoteIPTrustedProxy 172.64.0.0/13
RemoteIPTrustedProxy 131.0.72.0/22
RemoteIPTrustedProxy 2400:cb00::/32
RemoteIPTrustedProxy 2606:4700::/32
RemoteIPTrustedProxy 2803:f800::/32
RemoteIPTrustedProxy 2405:b500::/32
RemoteIPTrustedProxy 2405:8100::/32
RemoteIPTrustedProxy 2a06:98c0::/29
RemoteIPTrustedProxy 2c0f:f248::/32
and now because nextcloud is seeing all the different ip addresses it doesn’t throttle the connections anymore!
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Yes, I got lots of lag due to WordPress using all the CPU time to elaborate the same page over and over again.
I could have wasted some days to setup a cache proxy and other stuff but for a website with 10 monthly visitors is overkill, is faster to block everyone else outside the target. If someone is visiting from Russia or China they have 120% a malicious intent in my case, so no need to serve content
Ahh - I see. That’s why I keep telling people “a raspberry pi is not a server”. :-)
As a self-hoster I would still recommend figuring out how to setup something as simple as any of the available WordPress plugins that do caching though. “Being lazy” and “Self-hosting” will end in tears.