Letsencrypt/Troubleshooting

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This page initially is forked from Letsencrypt page to ease reading.

Certificate Errors

Errors in the certificate files may prevent Apache and some other services from starting. If you previously had custom settings for modSSL, revert those with:

config setprop modSSL crt (old value)
config setprop modSSL key (old value)
config setprop modSSL CertificateChainFile (old value--if this property was empty, delete it using the command line below)

If you did not have custom settings for modSSL, remove your changes with:

config delprop modSSL crt
config delprop modSSL key
config delprop modSSL CertificateChainFile 

Once you've made these changes, do:

signal-event post-upgrade
signal-event reboot

Also see

https://wiki.contribs.org/Useful_Commands#How_to_simply_recreate_the_certificate_for_SME_Server

rm /home/e-smith/ssl.{crt,key,pem}/*
config delprop modSSL CommonName
config delprop modSSL crt
config delprop modSSL key
signal-event post-upgrade
signal-event reboot

Authorization Errors

The first thing is to check all your domains can resolve

http://my.domain/.well-known/acme-challenge

Check that the following files are correctly generated

/etc/dehydrated/config
/etc/dehydrated/domains.txt

Set letsencrypt back to test and remove any generated keys

db configuration setprop letsencrypt status test

rm /etc/dehydrated/certs/* -rf
rm /etc/dehydrated/accounts/* -rf

Then run letsencrypt again

dehydrated -c

To restore the original certificates:

config delprop modSSL CertificateChainFile
config delprop modSSL crt
config delprop modSSL key

signal-event console-save

Errors

No registration exists matching provided key

If you see the following:

{"type":"urn:acme:error:unauthorized","detail":"No registration exists matching provided key","status":403}

https://github.com/lukas2511/letsencrypt.sh/issues/2

See above for removing private keys and regenerating

rateLimited, Too many currently pending Authorizations

If you see something like this you may have hit the rate limit:

{"type":"urn:acme:error:rateLimited","detail":"Error creating new authz :: Too many currently pending authorizations.","status":429}

https://github.com/lukas2511/letsencrypt.sh/blob/master/docs/staging.md

https://letsencrypt.org/docs/rate-limits/

Some challenges complete successfully but some hostnames fail

If you see some of your challenges returned without error but some fail, you possibly do not have Public DNS A or MX records for all the host names that you are adding to your certificate.

Using the command:

config setprop letsencrypt configure all

Is likely to cause this error. When a domain is added to an SME server, several host names are created automatically. these include ftp.your-domain.com, wpad.your-domain.com, proxy.your-domain.com, mail.your-domain.com, www.your-domain.com. Most of us do not create public DNS records for all these host names. When letsencrypt issues a challenge for a list of host names and ONE does not resolve, the challenge will fail and the certificate will not generate at all.

To resolve this, issue the following command:

config setprop letsencrypt configure none

Then follow up with the commands to enable letsencrypt for each PUBLIC resolvable domain and hostname:

db domains setprop domain1.com letsencryptSSLcert enabled

and for each hostname:

db hosts setprop www.domain1.com letsencryptSSLcert enabled

db hosts setprop mail.domain1.com letsencryptSSLcert enabled

until all the public facing hostnames are enabled followed by:

signal-event console-save

Thanks to MSmith for the following forum thread.

https://forums.contribs.org/index.php/topic,53052.0.html

Challenge fails with unauthorized 403 error

If your challenge returns something like the following:

ERROR: Challenge is invalid! (returned: invalid) (result: {
 "type": "http-01",
 "status": "invalid",
 "error": {
   "type": "urn:acme:error:unauthorized",
   "detail": "Invalid response from http://www.your-domain.com/.well-known/acme-challenge/<redacted text>
   "status": 403

and your httpd error_log on your server shows something like this:

(13)Permission denied: access to /.well-known/acme-challenge/<redacted> denied
(13)Permission denied: access to /.well-known/acme-challenge/<redacted> denied
(13)Permission denied: access to /.well-known/acme-challenge/<redacted> denied

You need to check the ownership and rights on /home/e-smith/files/ibays/Primary and on /home/e-smith/files/ibays/Primary/html. The contrib creates a hidden working directory at /home/e-smith/files/ibays/Primary/html/.well-known and inside that directory a second directory with the following path /home/e-smith/files/ibays/Primary/html/.well-known/acme-challenge. The script creates the two new directories with the correct ownerships and rights, however, if the ownership and rights on the ibay and the html directory do not allow the script to access the new location, the challenge will fail with access denied

use the following to check the rights:

cd /home/e-smith/files/ibays

then

ls -l

on my test server with only the Primary ibay I get the following (you will probably show a bunch more ibays on your server but we are only concerned with Primary):

total 4
drwxr-xr-x 5 root root 4096 Jul 25  2016 Primary

If this is not what you see, you need to correct it.

THIS MAY BREAK NON STANDARD CUSTOMIZATION OF YOUR SERVER, YOU NEED TO UNDERSTAND WHY THIS HAS BEEN CHANGED BEFORE YOU REVERSE IT

From within /home/e-smith/files/ibays/ issue the following:

chown root:root Primary

If the rights are not correct, issue:

chmod 0755 Primary

Next check the html directory.

cd /home/e-smith/files/ibays/Primary

then

ls -l

on my test server I have the following

[root@backupserver Primary]# ls -l
total 12
drwxr-s--- 2 admin shared 4096 Jul 25  2016 cgi-bin
drwxr-s--- 2 admin shared 4096 Jul 25  2016 files
drwxr-s--- 3 admin shared 4096 Jun 11 08:06 html

If this is not what you see,

FIRST READ ABOVE WARNING

then adjust as follows

chown admin:shared html

If the rights are not correct, issue:

chmod 2750 html

rerun

dehydrated -c

and your challenges should complete.

https://forums.contribs.org/index.php/topic,53147.0.html