COMBINED - Failed installing a certificate

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: hd2900service.dimsum.dk

I ran this command: sudo certbot --apache

It produced this output:
udo certbot --apache
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Error while running apache2ctl configtest.
Action 'configtest' failed.
The Apache error log may have more information.

AH00526: Syntax error on line 14 of /etc/apache2/sites-enabled/000-default.conf:
Invalid command 'python-home=/home/hd2900/Documents/Python/hd2900TakeawayPrint/env', perhaps misspelled or defined by a module not included in the server configuration

The apache plugin is not working; there may be problems with your existing configuration.
The error was: MisconfigurationError("Error while running apache2ctl configtest.\nAction 'configtest' failed.\nThe Apache error log may have more information.\n\nAH00526: Syntax error on line 14 of /etc/apache2/sites-enabled/000-default.conf:\nInvalid command 'python-home=/home/hd2900/Documents/Python/hd2900TakeawayPrint/env', perhaps misspelled or defined by a module not included in the server configuration\n")

My web server is (include version):
apache2 2.4.52
The operating system my web server runs on is (include version): Ubuntu 22.04 Desktop LTS

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know): yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 1.29.0

I have a flask application that I will like to serve using apache2 via https. My apache2 configuration is:

(env) hd2900@hd2900:~/Documents/Python/hd2900TakeawayPrint$ cat /etc/apache2/sites-available/000-default.conf
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
#ServerName www.example.com
ServerName hd2900service.dimsum.dk
ServerAdmin webmaster@localhost
DocumentRoot /var/www/html
# WSGIDaemonProcess flaskapp threads=5
python-home=/home/hd2900/Documents/Python/hd2900TakeawayPrint/env

    #WSGIScriptAlias / /home/hd2900/Documents/Python/hd2900TakeawayPrint/flaskapp.wsgi
    #WSGIApplicationGroup %{GLOBAL}

    <Directory /home/hd2900/Documents/Python/hd2900TakeawayPrint>
        WSGIProcessGroup flaskapp
        Require all granted
    </Directory>

# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn

ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined

# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf

vim: syntax=apache ts=4 sw=4 sts=4 sr noet

I have checked that the path to the python environment within my flask project is correct

(env) hd2900@hd2900:~/Documents/Python/hd2900TakeawayPrint/env$ pwd
/home/hd2900/Documents/Python/hd2900TakeawayPrint/env

1 Like

Your Apache config is not valid. You need to review your new line for python-home and your Flask settings. Once the below command works then certbot should work again too.

apache2ctl configtest

Key info:

3 Likes

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: hd2900service.dimsum.dk

I ran this command: sudo certbot --apache

It produced this output:

hd2900@hd2900:~$ sudo certbot --apache
Saving debug log to /var/log/letsencrypt/letsencrypt.log

Which names would you like to activate HTTPS for?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: hd2900service.dimsum.dk
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate numbers separated by commas and/or spaces, or leave input
blank to select all options shown (Enter 'c' to cancel): 1
Certificate not yet due for renewal

You have an existing certificate that has exactly the same domains or certificate name you requested and isn't close to expiry.
(ref: /etc/letsencrypt/renewal/hd2900service.dimsum.dk.conf)

What would you like to do?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: Attempt to reinstall this existing certificate
2: Renew & replace the certificate (may be subject to CA rate limits)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 1
Deploying certificate
Error in checking parameter list: AH00526: Syntax error on line 32 of /etc/apache2/sites-enabled/default-ssl.conf:
SSLCertificateFile: file '/etc/ssl/certs/ssl-cert-snakeoil.pem' does not exist or is empty

Could not install certificate

NEXT STEPS:
- The certificate was saved, but could not be installed (installer: apache). After fixing the error shown below, try installing it again by running:
  certbot install --cert-name hd2900service.dimsum.dk

Apache is unable to check whether or not the module is loaded because Apache is misconfigured.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
hd2900@hd2900:~$

My web server is (include version):

hd2900@hd2900:~$ apache2 -v
Server version: Apache/2.4.52 (Ubuntu)
Server built:   2022-06-14T12:30:21

The operating system my web server runs on is (include version):

hd2900@hd2900:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 22.04.1 LTS
Release:	22.04
Codename:	jammy

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know): yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):

hd2900@hd2900:~$ certbot --version
certbot 1.29.0

Furthermore my configuration looks like this

hd2900@hd2900:~$ cat /etc/apache2/sites-enabled/000-default.conf 
<VirtualHost *:80>
	# The ServerName directive sets the request scheme, hostname and port that
	# the server uses to identify itself. This is used when creating
	# redirection URLs. In the context of virtual hosts, the ServerName
	# specifies what hostname must appear in the request's Host: header to
	# match this virtual host. For the default virtual host (this file) this
	# value is not decisive as it is used as a last resort host regardless.
	# However, you must set it for any further virtual host explicitly.
	#ServerName www.example.com
       
        ServerName hd2900service.dimsum.dk       
	ServerAdmin webmaster@localhost
	DocumentRoot /var/www/html

        #WSGIDaemonProcess flaskapp threads=5 python-home=/home/hd2900/Documents/Python/hd2900TakeawayPrint/env
        #WSGIScriptAlias / /home/hd2900/Documents/Python/hd2900TakeawayPrint/flaskapp.wsgi
        #WSGIApplicationGroup %{GLOBAL}

        <Directory /home/hd2900/Documents/Python/hd2900TakeawayPrint>
            WSGIProcessGroup flaskapp
            Require all granted
        </Directory>

	# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
	# error, crit, alert, emerg.
	# It is also possible to configure the loglevel for particular
	# modules, e.g.
	#LogLevel info ssl:warn

	ErrorLog ${APACHE_LOG_DIR}/error.log
	CustomLog ${APACHE_LOG_DIR}/access.log combined

	# For most configuration files from conf-available/, which are
	# enabled or disabled at a global level, it is possible to
	# include a line for only one particular virtual host. For example the
	# following line enables the CGI configuration for this host only
	# after it has been globally disabled with "a2disconf".
	#Include conf-available/serve-cgi-bin.conf
</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

and the file that the error refers to

hd2900@hd2900:~$ cat /etc/apache2/sites-enabled/default-ssl.conf
<IfModule mod_ssl.c>
	<VirtualHost _default_:443>
		ServerAdmin webmaster@localhost

		DocumentRoot /var/www/html

		# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
		# error, crit, alert, emerg.
		# It is also possible to configure the loglevel for particular
		# modules, e.g.
		#LogLevel info ssl:warn

		ErrorLog ${APACHE_LOG_DIR}/error.log
		CustomLog ${APACHE_LOG_DIR}/access.log combined

		# For most configuration files from conf-available/, which are
		# enabled or disabled at a global level, it is possible to
		# include a line for only one particular virtual host. For example the
		# following line enables the CGI configuration for this host only
		# after it has been globally disabled with "a2disconf".
		#Include conf-available/serve-cgi-bin.conf

		#   SSL Engine Switch:
		#   Enable/Disable SSL for this virtual host.
		SSLEngine on

		#   A self-signed (snakeoil) certificate can be created by installing
		#   the ssl-cert package. See
		#   /usr/share/doc/apache2/README.Debian.gz for more info.
		#   If both key and certificate are stored in the same file, only the
		#   SSLCertificateFile directive is needed.
		SSLCertificateFile	/etc/ssl/certs/ssl-cert-snakeoil.pem
		SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key

		#   Server Certificate Chain:
		#   Point SSLCertificateChainFile at a file containing the
		#   concatenation of PEM encoded CA certificates which form the
		#   certificate chain for the server certificate. Alternatively
		#   the referenced file can be the same as SSLCertificateFile
		#   when the CA certificates are directly appended to the server
		#   certificate for convinience.
		#SSLCertificateChainFile /etc/apache2/ssl.crt/server-ca.crt

		#   Certificate Authority (CA):
		#   Set the CA certificate verification path where to find CA
		#   certificates for client authentication or alternatively one
		#   huge file containing all of them (file must be PEM encoded)
		#   Note: Inside SSLCACertificatePath you need hash symlinks
		#		 to point to the certificate files. Use the provided
		#		 Makefile to update the hash symlinks after changes.
		#SSLCACertificatePath /etc/ssl/certs/
		#SSLCACertificateFile /etc/apache2/ssl.crt/ca-bundle.crt

		#   Certificate Revocation Lists (CRL):
		#   Set the CA revocation path where to find CA CRLs for client
		#   authentication or alternatively one huge file containing all
		#   of them (file must be PEM encoded)
		#   Note: Inside SSLCARevocationPath you need hash symlinks
		#		 to point to the certificate files. Use the provided
		#		 Makefile to update the hash symlinks after changes.
		#SSLCARevocationPath /etc/apache2/ssl.crl/
		#SSLCARevocationFile /etc/apache2/ssl.crl/ca-bundle.crl

		#   Client Authentication (Type):
		#   Client certificate verification type and depth.  Types are
		#   none, optional, require and optional_no_ca.  Depth is a
		#   number which specifies how deeply to verify the certificate
		#   issuer chain before deciding the certificate is not valid.
		#SSLVerifyClient require
		#SSLVerifyDepth  10

		#   SSL Engine Options:
		#   Set various options for the SSL engine.
		#   o FakeBasicAuth:
		#	 Translate the client X.509 into a Basic Authorisation.  This means that
		#	 the standard Auth/DBMAuth methods can be used for access control.  The
		#	 user name is the `one line' version of the client's X.509 certificate.
		#	 Note that no password is obtained from the user. Every entry in the user
		#	 file needs this password: `xxj31ZMTZzkVA'.
		#   o ExportCertData:
		#	 This exports two additional environment variables: SSL_CLIENT_CERT and
		#	 SSL_SERVER_CERT. These contain the PEM-encoded certificates of the
		#	 server (always existing) and the client (only existing when client
		#	 authentication is used). This can be used to import the certificates
		#	 into CGI scripts.
		#   o StdEnvVars:
		#	 This exports the standard SSL/TLS related `SSL_*' environment variables.
		#	 Per default this exportation is switched off for performance reasons,
		#	 because the extraction step is an expensive operation and is usually
		#	 useless for serving static content. So one usually enables the
		#	 exportation for CGI and SSI requests only.
		#   o OptRenegotiate:
		#	 This enables optimized SSL connection renegotiation handling when SSL
		#	 directives are used in per-directory context.
		#SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
		<FilesMatch "\.(cgi|shtml|phtml|php)$">
				SSLOptions +StdEnvVars
		</FilesMatch>
		<Directory /usr/lib/cgi-bin>
				SSLOptions +StdEnvVars
		</Directory>

		#   SSL Protocol Adjustments:
		#   The safe and default but still SSL/TLS standard compliant shutdown
		#   approach is that mod_ssl sends the close notify alert but doesn't wait for
		#   the close notify alert from client. When you need a different shutdown
		#   approach you can use one of the following variables:
		#   o ssl-unclean-shutdown:
		#	 This forces an unclean shutdown when the connection is closed, i.e. no
		#	 SSL close notify alert is send or allowed to received.  This violates
		#	 the SSL/TLS standard but is needed for some brain-dead browsers. Use
		#	 this when you receive I/O errors because of the standard approach where
		#	 mod_ssl sends the close notify alert.
		#   o ssl-accurate-shutdown:
		#	 This forces an accurate shutdown when the connection is closed, i.e. a
		#	 SSL close notify alert is send and mod_ssl waits for the close notify
		#	 alert of the client. This is 100% SSL/TLS standard compliant, but in
		#	 practice often causes hanging connections with brain-dead browsers. Use
		#	 this only for browsers where you know that their SSL implementation
		#	 works correctly.
		#   Notice: Most problems of broken clients are also related to the HTTP
		#   keep-alive facility, so you usually additionally want to disable
		#   keep-alive for those clients, too. Use variable "nokeepalive" for this.
		#   Similarly, one has to force some clients to use HTTP/1.0 to workaround
		#   their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and
		#   "force-response-1.0" for this.
		# BrowserMatch "MSIE [2-6]" \
		#		nokeepalive ssl-unclean-shutdown \
		#		downgrade-1.0 force-response-1.0

	</VirtualHost>
</IfModule>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

Do you need that file?
If so, why?

2 Likes

I am not sure what that file is there for. I certainly have not created it. Is that file causing the trouble and should I go ahead and delete it?

I would delete it, yes.

2 Likes

hd2900@hd2900:~$ sudo certbot --apache
Saving debug log to /var/log/letsencrypt/letsencrypt.log

Which names would you like to activate HTTPS for?


1: hd2900service.dimsum.dk


Select the appropriate numbers separated by commas and/or spaces, or leave input
blank to select all options shown (Enter 'c' to cancel): 1
Certificate not yet due for renewal

You have an existing certificate that has exactly the same domains or certificate name you requested and isn't close to expiry.
(ref: /etc/letsencrypt/renewal/hd2900service.dimsum.dk.conf)

What would you like to do?


1: Attempt to reinstall this existing certificate
2: Renew & replace the certificate (may be subject to CA rate limits)


Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 1
Deploying certificate
Successfully deployed certificate for hd2900service.dimsum.dk to /etc/apache2/sites-available/000-default-le-ssl.conf
Congratulations! You have successfully enabled HTTPS on https://hd2900service.dimsum.dk


If you like Certbot, please consider supporting our work by:


Thanks so much. I renamed the file just in case and rerun the sudo certbot --apache. Now it worked!

1 Like

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