28 lines
1.0 KiB
Markdown
28 lines
1.0 KiB
Markdown
+++
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date = "2006-11-13"
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title = "CUPS: 426 - Upgrade Required"
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tags = ["General", "Everything", "Features", "Linux", "Ubuntu"]
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slug = "cups-426-upgrade-required"
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description = "How to fix the <code>426 Upgrade Required</code> CUPS error."
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As I was installing my printer on my Ubuntu 6.06 Dapper LTS server with CUPS I noticed the following error:
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> 426 Upgrade Required
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After some research I came to the conclusion that CUPS, by default, tries to use SSL whenever possible. So, with this 426 error, you are redirected to the SSL domain. Chances are, you haven't configured SSL properly, if at all.
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In my case, I didn't want to configure SSL. To get rid of this problem, the key lies in editing your configuration files ( /etc/cups/cupsd.conf ) and adding the following line:
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``` text
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DefaultEncryption Never
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```
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There are several options, Never, IfRequired and Required. By setting this to Never, SSL will never be enforced. Just restart your CUPS server with
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``` shell
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/etc/init.d/cupsys restart
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```
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and you're good to go.
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