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Always generate DKIM key with key length '1024'.

This commit is contained in:
Zhang Huangbin 2016-01-22 23:22:11 +08:00
parent 4b5691b95d
commit 92d23794b3
2 changed files with 6 additions and 16 deletions
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11
en_US/howto/2-sign.dkim.signature.for.new.domain.md
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@ -56,21 +56,16 @@ If you or your customer prefer to use their own DKIM key, you can generate
a new DKIM key and ask your customer to add DKIM DNS record. Refer to our
tutorial to [add DKIM DNS record](setup.dns.html#dkim-record-for-your-mail-domain-name).
* Generate new DKIM key (key length `2048`) for new domain.
* Generate new DKIM key (key length `1024`) for new domain.
```shell
# amavisd-new genrsa /var/lib/dkim/new_domain.com.pem 2048
# amavisd-new genrsa /var/lib/dkim/new_domain.com.pem 1024
```
> * if you're running CentOS, you may need to specify its config file on
> command line. For example:
>
> `# amavisd -c /etc/amavisd/amavisd.conf genrsa /var/lib/dkim/new_domain.com.pem 2048`
> * Some DNS provider doesn't support long value for TXT type DNS record, you
> need to create a shorter key with key length `1024`. For example:
>
> `# amavisd-new genrsa /var/lib/dkim/new_domain.com.pem 1024`
> `# amavisd -c /etc/amavisd/amavisd.conf genrsa /var/lib/dkim/new_domain.com.pem 1024`
* Find below setting in Amavisd config file `amavisd.conf`:

11
html/sign.dkim.signature.for.new.domain.html
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@ -69,9 +69,9 @@ line like below:</p>
a new DKIM key and ask your customer to add DKIM DNS record. Refer to our
tutorial to <a href="setup.dns.html#dkim-record-for-your-mail-domain-name">add DKIM DNS record</a>.</p>
<ul>
<li>Generate new DKIM key (key length <code>2048</code>) for new domain.</li>
<li>Generate new DKIM key (key length <code>1024</code>) for new domain.</li>
</ul>
<pre><code class="shell"># amavisd-new genrsa /var/lib/dkim/new_domain.com.pem 2048
<pre><code class="shell"># amavisd-new genrsa /var/lib/dkim/new_domain.com.pem 1024
</code></pre>
<blockquote>
@ -79,12 +79,7 @@ tutorial to <a href="setup.dns.html#dkim-record-for-your-mail-domain-name">add D
<li>if you're running CentOS, you may need to specify its config file on
command line. For example:</li>
</ul>
<p><code># amavisd -c /etc/amavisd/amavisd.conf genrsa /var/lib/dkim/new_domain.com.pem 2048</code></p>
<ul>
<li>Some DNS provider doesn't support long value for TXT type DNS record, you
need to create a shorter key with key length <code>1024</code>. For example:</li>
</ul>
<p><code># amavisd-new genrsa /var/lib/dkim/new_domain.com.pem 1024</code></p>
<p><code># amavisd -c /etc/amavisd/amavisd.conf genrsa /var/lib/dkim/new_domain.com.pem 1024</code></p>
</blockquote>
<ul>
<li>Find below setting in Amavisd config file <code>amavisd.conf</code>:</li>