Default-ssl CONF Error?


#1

Hi.

I usually have a cronjob running on my VPS to renew my certificate and a week or so ago, I got an email from my server warning me my certificate was going to expire. So I logged into my server to check the issue, running the renew command I got this error:

    Cert is due for renewal, auto-renewing...
    Could not choose appropriate plugin: The apache plugin is not working; there may be problems with your existing configuration.
    The error was: PluginError('There has been an error in parsing the file /etc/apache2/sites-enabled/default-ssl on line 97: Syntax error',)
    Attempting to renew cert (example.net) from /etc/letsencrypt/renewal/example.net.conf produced an unexpected error: The apache plugin is not working; there may be problems with your existing configuration.
    The error was: PluginError('There has been an error in parsing the file /etc/apache2/sites-enabled/default-ssl on line 97: Syntax error',). Skipping.
    All renewal attempts failed. The following certs could not be renewed:
      /etc/letsencrypt/live/example.net/fullchain.pem (failure)

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
** DRY RUN: simulating 'certbot renew' close to cert expiry
**          (The test certificates below have not been saved.)

All renewal attempts failed. The following certs could not be renewed:
  /etc/letsencrypt/live/example.net/fullchain.pem (failure)
** DRY RUN: simulating 'certbot renew' close to cert expiry
**          (The test certificates above have not been saved.)

Here is my CONF file:

<IfModule mod_ssl.c>
    <VirtualHost _default_:443>
    	ServerAdmin webmaster@localhost

    ServerName example.net:443
    	DocumentRoot /var/www
    	<Directory />
    		Options FollowSymLinks
                    AllowOverride All
            </Directory>
            <Directory /var/www/>
                    Options Indexes FollowSymLinks MultiViews
                    AllowOverride All
                    Order allow,deny
                    allow from all
            </Directory>

            ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
            <Directory "/usr/lib/cgi-bin">
                    AllowOverride None
                    Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
                    Order allow,deny
                    Allow from all
            </Directory>

            ErrorLog ${APACHE_LOG_DIR}/error.log

            # Possible values include: debug, info, notice, warn, error, crit,
            # alert, emerg.
            LogLevel warn

            CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined

            Alias /doc/ "/usr/share/doc/"
            <Directory "/usr/share/doc/">
                    Options Indexes MultiViews FollowSymLinks
                    AllowOverride None
                    Order deny,allow
                    Deny from all
                    Allow from 127.0.0.0/255.0.0.0 ::1/128
            </Directory>

            #   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/apache2.2-common/README.Debian.gz for more info.
            #   If both key and certificate are stored in the same file, only the
            #   SSLCertificateFile directive is needed.

            #   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

            #   Access Control:
            #   With SSLRequire you can do per-directory access control based
            #   on arbitrary complex boolean expressions containing server
            #   variable checks and other lookup directives.  The syntax is a
            #   mixture between C and Perl.  See the mod_ssl documentation
            #   for more details.
            #<Location />
            #SSLRequire (    %{SSL_CIPHER} !~ m/^(EXP|NULL)/ \
            #            and %{SSL_CLIENT_S_DN_O} eq "Snake Oil, Ltd." \
            #            and %{SSL_CLIENT_S_DN_OU} in {"Staff", "CA", "Dev"} \
            #            and %{TIME_WDAY} >= 1 and %{TIME_WDAY} <= 5 \
            #            and %{TIME_HOUR} >= 8 and %{TIME_HOUR} <= 20       ) \
            #           or %{REMOTE_ADDR} =~ m/^192\.76\.162\.[0-9]+$/
            #</Location>

            #   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 certific                                                                             ate.
            #     Note that no password is obtained from the user. Every entry in th                                                                             e 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 certificat                                                                             es
            #     into CGI scripts.
            #   o StdEnvVars:
            #     This exports the standard SSL/TLS related `SSL_*' environment vari                                                                             ables.
            #     Per default this exportation is switched off for performance reaso                                                                             ns,
            #     because the extraction step is an expensive operation and is usual                                                                             ly
            #     useless for serving static content. So one usually enables the
            #     exportation for CGI and SSI requests only.
            #   o StrictRequire:
            #     This denies access when "SSLRequireSSL" or "SSLRequire" applied ev                                                                             en
            #     under a "Satisfy any" situation, i.e. when it applies access is de                                                                             nied
            #     and no other module can change it.
            #   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 wa                                                                             it for
            #   the close notify alert from client. When you need a different shutdo                                                                             wn
            #   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 viola                                                                             tes
            #     the SSL/TLS standard but is needed for some brain-dead browsers. U                                                                             se
            #     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 not                                                                             ify
            #     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 implementatio                                                                             n
            #     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 th                                                                             is.
            #   Similarly, one has to force some clients to use HTTP/1.0 to workarou                                                                             nd
            #   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
            # MSIE 7 and newer should be able to use keepalive
            BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown

            ServerAlias example.net
            SSLCertificateFile /etc/letsencrypt/live/example.net/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/example.net/privkey.pem
    Include /etc/letsencrypt/options-ssl-apache.conf
    SSLCertificateChainFile /etc/letsencrypt/live/example.net/chain.pem
    </VirtualHost>
    </IfModule>

Thanks guys, Merry Christmas!


#2

As best as I can tell, from your uploaded text, line 97 is “unused”:
#SSLRequire ( %{SSL_CIPHER} !~ m/^(EXP|NULL)/ \

Nonetheless, it may be causing some difficulty for certbot.
I would copy that file somewhere else as a backup and remove all the unused lines and retry the renewal.

Something more like:

<IfModule mod_ssl.c>
    <VirtualHost _default_:443>
    	ServerAdmin webmaster@localhost

    ServerName example.net:443
    	DocumentRoot /var/www
    	<Directory />
    		Options FollowSymLinks
                    AllowOverride All
            </Directory>
            <Directory /var/www/>
                    Options Indexes FollowSymLinks MultiViews
                    AllowOverride All
                    Order allow,deny
                    allow from all
            </Directory>

            ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
            <Directory "/usr/lib/cgi-bin">
                    AllowOverride None
                    Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
                    Order allow,deny
                    Allow from all
            </Directory>

            ErrorLog ${APACHE_LOG_DIR}/error.log

            LogLevel warn

            CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined

            Alias /doc/ "/usr/share/doc/"
            <Directory "/usr/share/doc/">
                    Options Indexes MultiViews FollowSymLinks
                    AllowOverride None
                    Order deny,allow
                    Deny from all
                    Allow from 127.0.0.0/255.0.0.0 ::1/128
            </Directory>

            SSLEngine on

            <FilesMatch "\.(cgi|shtml|phtml|php)$">
                    SSLOptions +StdEnvVars
            </FilesMatch>
            <Directory /usr/lib/cgi-bin>
                    SSLOptions +StdEnvVars
            </Directory>

            BrowserMatch    "MSIE [2-6]" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
            BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown

            ServerAlias example.net
            SSLCertificateFile /etc/letsencrypt/live/example.net/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/example.net/privkey.pem
    Include /etc/letsencrypt/options-ssl-apache.conf
    SSLCertificateChainFile /etc/letsencrypt/live/example.net/chain.pem
    </VirtualHost>
    </IfModule>

And a Merry Christmas to you too!


#3

Thanks for your speedy response, really appreciate it man! It worked too. Merry Christmas!