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Format nitter post

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Wesley Moore 2021-08-26 19:23:35 +10:00
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v2/content/posts/2021/nitter-bandwidth/index.md
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@ -6,9 +6,10 @@ date = 2021-08-26T09:10:54+10:00
#updated = 2021-05-15T10:15:08+10:00
+++
On 24 August I received an email from Vultr saying that my server had used 78% of its 3Tb
bandwidth allocation for the month. This was surprising as last time I looked I only used
a small fraction of this allocation across the various [things I host][alpine-docker].
On 24 August I received an email from Vultr saying that my server had used 78%
of its 3Tb bandwidth allocation for the month. This was surprising as last time
I looked I only used a small fraction of this allocation across the various
[things I host][alpine-docker].
After some investigation I noticed that the [Nitter] instance I [set up six
months ago][nitter-instance] at `nitter.decentralised.social` seemed to be
@ -16,6 +17,8 @@ getting a lot of traffic. In particular it seemed that there were several
crawlers including Googlebot and bingbot attempting to index the whole site and
all its media.
<!-- more -->
Nitter is an alternate UI for Twitter that is simpler, faster, and free of
tracking. I mainly set it up so that I could share Twitter links with my
friends, without them having to visit Twitter proper. It's obvious in hindsight
@ -40,13 +43,14 @@ the usage graphs.
{{ figure(image="posts/2021/nitter-bandwidth/cpu-usage.png", link="posts/2021/nitter-bandwidth/cpu-usage.png", alt="Chart showing CPU usage for the last week with a significant drop in the last two days", caption="CPU usage, last 7 days") }}
After letting the changes sit overnight I was still seeing a lot of requests from user-agents
that appear to be Chinese bots of some sort. They almost exactly matched the user-agents
in this blog post:
[Blocking aggressive Chinese crawlers/scrapers/bots](https://www.johnlarge.co.uk/blocking-aggressive-chinese-crawlers-scrapers-bots/).
After letting the changes sit overnight I was still seeing a lot of requests
from user-agents that appear to be Chinese bots of some sort. They almost
exactly matched the user-agents in this blog post: [Blocking aggressive Chinese
crawlers/scrapers/bots](https://www.johnlarge.co.uk/blocking-aggressive-chinese-crawlers-scrapers-bots/).
As a result I added some additional configuration to Varnish to block requests from these
user-agents, as they were clearly not honouring the `robots.txt` I added:
As a result I added some additional configuration to Varnish to block requests
from these user-agents, as they were clearly not honouring the `robots.txt` I
added:
```c
sub vcl_recv {
@ -60,10 +64,11 @@ sub vcl_recv {
### What Now?
I liked having the Nitter instance for sharing links but now I'm not sure how to run it in
a way that only proxies the things I'm sharing. I don't really want to be responsible for
all of the content posted to Twitter flowing through my server. Perhaps there's a project
idea lurking there, or perhaps I just make my peace with linking to Twitter.
I liked having the Nitter instance for sharing links but now I'm not sure how
to run it in a way that only proxies the things I'm sharing. I don't really
want to be responsible for all of the content posted to Twitter flowing through
my server. Perhaps there's a project idea lurking there, or perhaps I just make
my peace with linking to Twitter.
[alpine-docker]: https://www.wezm.net/technical/2019/02/alpine-linux-docker-infrastructure/
[Nitter]: https://github.com/zedeus/nitter