# 9. Start BLAST server

A SequenceServer BLAST server container provides a user friendly BLAST interface to genomes hosted in a GenomeHub.

![](/files/-LeLgsDr-89uem-BuDZy)

## Edit files in conf directory

Edit `Masthead.html` to change the site name, logos and link urls:

* add images to the `~/genomehubs/v1/blast/conf/img` directory if you wish to include them on your site
* further changes to the appearance can be made by editing the styles in `custom.css`

```
$ cd ~/genomehubs/v1/blast/conf
# if you have a google analytics code to track usage
$ sed 's/UA-00000000-0/your analytics code/' Masthead.html
$ nano Masthead.html
# replace references to example.com with your domain name
```

Edit `links.rb` to ensure that links from BLAST results are directed to your Ensembl site:

* modify the `url = "http://localhost:8881/#{assembly}"` to match your domain name

{% tabs %}
{% tab title="e93" %}

```
$ nano links.rb
...
    def genomehubs
...
      url = "http://localhost:8881/#{assembly}"
...
```

{% endtab %}

{% tab title="e89" %}

```
$ nano links.rb
...
    def genomehubs
      taxa = {}
      taxa["operophtera_brumata_obru1_core_36_89_1"] = "Operophtera_brumata_Obru1"
...
      accession = encode accession
      colon = ':'
      url = "http://ensembl.genomehubs.org/#{assembly}"
...
```

{% endtab %}

{% tab title="e85" %}

```
$ nano links.rb
...
    def genomehubs
      taxa = {}
      taxa["operophtera_brumata_obru1_core_32_85_1"] = "Operophtera_brumata_Obru1"
...
      accession = encode accession
      colon = ':'
      url = "http://ensembl.genomehubs.org/#{assembly}"
...
```

{% endtab %}
{% endtabs %}

## Start SequenceServer BLAST container

Start the SequenceServer Docker container:

```
$ docker run -d \
             --name genomehubs-sequenceserver \
             --network genomehubs-network \
             -v ~/genomehubs/v1/blast/conf:/conf:ro \
             -v ~/genomehubs/v1/blast/data:/dbs \
             -p 8883:4567 \
             genomehubs/sequenceserver:19.05
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://genomehubs.gitbook.io/genomehubs/quick-start/blast-site.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.