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@ -318,5 +318,22 @@ geo $ua {
- But I can't get it to work, neither for the default value or for matching my IP...
- I will have to ask on the nginx mailing list
- The total number of requests and unique hosts was not even very high (below here around midnight so is almost all day):
```console
# awk '{print $1}' /var/log/nginx/{access,library-access,oai,rest}.log | sort -u | wc -l
2776
# awk '{print $1}' /var/log/nginx/{access,library-access,oai,rest}.log | wc -l
40325
```
## 2022-07-18
- Reading more about nginx's geo/map and doing some tests on DSpace Test, it appears that the [geo module cannot do dynamic values](https://stackoverflow.com/questions/47011497/nginx-geo-module-wont-use-variables)
- So this issue with the literal `$http_user_agent` is due to the geo block I put in place earlier this month
- I reworked the logic so that the geo block sets "bot" or and empty string when a network matches or not, and then re-use that value in a mapping that passes through the host's user agent in case geo has set it to an empty string
- This allows me to accomplish the original goal while still only using one bot-networks.conf file for the `limit_req_zone` and the user agent mapping that we pass to Tomcat
- Unfortunately this means I will have hundreds of thousands of requests in Solr with a literal `$http_user_agent`
- I might try to purge some by enumerating all the networks in my block file and running them through `check-spider-ip-hits.sh`
<!-- vim: set sw=2 ts=2: -->

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@ -19,7 +19,7 @@ Also, the trgm functions I&rsquo;ve used before are case insensitive, but Levens
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@ -44,9 +44,9 @@ Also, the trgm functions I&rsquo;ve used before are case insensitive, but Levens
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"url": "https://alanorth.github.io/cgspace-notes/2022-07/",
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@ -484,6 +484,23 @@ Also, the trgm functions I&rsquo;ve used before are case insensitive, but Levens
<li>I will have to ask on the nginx mailing list</li>
</ul>
</li>
<li>The total number of requests and unique hosts was not even very high (below here around midnight so is almost all day):</li>
</ul>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-console" data-lang="console"><span style="display:flex;"><span># awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> /var/log/nginx/<span style="color:#f92672">{</span>access,library-access,oai,rest<span style="color:#f92672">}</span>.log | sort -u | wc -l
</span></span><span style="display:flex;"><span>2776
</span></span><span style="display:flex;"><span># awk <span style="color:#e6db74">&#39;{print $1}&#39;</span> /var/log/nginx/<span style="color:#f92672">{</span>access,library-access,oai,rest<span style="color:#f92672">}</span>.log | wc -l
</span></span><span style="display:flex;"><span>40325
</span></span></code></pre></div><h2 id="2022-07-18">2022-07-18</h2>
<ul>
<li>Reading more about nginx&rsquo;s geo/map and doing some tests on DSpace Test, it appears that the <a href="https://stackoverflow.com/questions/47011497/nginx-geo-module-wont-use-variables">geo module cannot do dynamic values</a>
<ul>
<li>So this issue with the literal <code>$http_user_agent</code> is due to the geo block I put in place earlier this month</li>
<li>I reworked the logic so that the geo block sets &ldquo;bot&rdquo; or and empty string when a network matches or not, and then re-use that value in a mapping that passes through the host&rsquo;s user agent in case geo has set it to an empty string</li>
<li>This allows me to accomplish the original goal while still only using one bot-networks.conf file for the <code>limit_req_zone</code> and the user agent mapping that we pass to Tomcat</li>
<li>Unfortunately this means I will have hundreds of thousands of requests in Solr with a literal <code>$http_user_agent</code></li>
<li>I might try to purge some by enumerating all the networks in my block file and running them through <code>check-spider-ip-hits.sh</code></li>
</ul>
</li>
</ul>
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