Sslengine on ошибка

When I restart httpd, I get the following error. What am I missing?

[root@localhost ~]# service httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd: Syntax error on line 22 of /etc/httpd/conf.d/sites.conf:
Invalid command 'SSLEngine', perhaps misspelled or defined by a module not included in the server configuration

I have installed mod_ssl using yum install mod_ssl openssh

Package 1:mod_ssl-2.2.15-15.el6.centos.x86_64 already installed and latest version
Package openssh-5.3p1-70.el6_2.2.x86_64 already installed and latest version

My sites.conf looks like this

<VirtualHost *:80>
#    ServerName shop.itmanx.com
    ServerAdmin webmaster@itmanx.com

    DocumentRoot /var/www/html/magento
    <Directory /var/www/html>
        Options -Indexes
        AllowOverride All
    </Directory>

    ErrorLog logs/shop-error.log
    CustomLog logs/shop-access.log
</VirtualHost>

<VirtualHost *:443>
    ServerName secure.itmanx.com
    ServerAdmin webmaster@itmanx.com

    SSLEngine on
    SSLCertificateFile /etc/httpd/ssl/secure.itmanx.com/server.crt
    SSLCertificateKeyFile /etc/httpd/ssl/secure.itmanx.com/server.key
    SSLCertificateChainFile /etc/httpd/ssl/secure.itmanx.com/chain.crt

    DocumentRoot /var/www/html/magento
    <Directory /var/www/html>
        Options -Indexes
        AllowOverride All
    </Directory>

    ErrorLog logs/shop-ssl-error.log
    CustomLog logs/shop-ssl-access.log    
</VirtualHost>

When I restart httpd, I get the following error. What am I missing?

[root@localhost ~]# service httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd: Syntax error on line 22 of /etc/httpd/conf.d/sites.conf:
Invalid command 'SSLEngine', perhaps misspelled or defined by a module not included in the server configuration

I have installed mod_ssl using yum install mod_ssl openssh

Package 1:mod_ssl-2.2.15-15.el6.centos.x86_64 already installed and latest version
Package openssh-5.3p1-70.el6_2.2.x86_64 already installed and latest version

My sites.conf looks like this

<VirtualHost *:80>
#    ServerName shop.itmanx.com
    ServerAdmin webmaster@itmanx.com

    DocumentRoot /var/www/html/magento
    <Directory /var/www/html>
        Options -Indexes
        AllowOverride All
    </Directory>

    ErrorLog logs/shop-error.log
    CustomLog logs/shop-access.log
</VirtualHost>

<VirtualHost *:443>
    ServerName secure.itmanx.com
    ServerAdmin webmaster@itmanx.com

    SSLEngine on
    SSLCertificateFile /etc/httpd/ssl/secure.itmanx.com/server.crt
    SSLCertificateKeyFile /etc/httpd/ssl/secure.itmanx.com/server.key
    SSLCertificateChainFile /etc/httpd/ssl/secure.itmanx.com/chain.crt

    DocumentRoot /var/www/html/magento
    <Directory /var/www/html>
        Options -Indexes
        AllowOverride All
    </Directory>

    ErrorLog logs/shop-ssl-error.log
    CustomLog logs/shop-ssl-access.log    
</VirtualHost>

When configure apache2 virtual hosts for ssl/https connection, after adding configuration and enable the configuration with this command » a2ensite pm.university.com.conf » i got this error «Invalid command ‘SSLEngine’, perhaps misspelled or defined by a module not included in the server configuration». I will answer my own question.

Promise Preston's user avatar

asked Jun 2, 2017 at 19:15

Dung's user avatar

It turned out I did enabled ssl module but i had to do it again and it works, here is the command:

sudo a2enmod ssl

Now restart apache like so service apache2 restart

no more error, FIXED!

answered Jun 2, 2017 at 19:15

Dung's user avatar

DungDung

19.2k9 gold badges59 silver badges54 bronze badges

2

Invalid command ‘SSLEngine’, perhaps misspelled or defined by a module not included in the server configuration

Simply:

This error likely happens on apache if your «virtual host» is trying to use SSL but you did not install SSL module on your apache.

Case 1: For Centos (linux distro), run:

yum install mod_ssl openssh

Case 2: For Ubuntu or Debian (linux distros), run:

sudo a2enmod ssl 

And it should install and configure everything (a new file *-ssl.conf should appear in your conf.modules.d folder)

answered May 24, 2020 at 1:32

ofundefined's user avatar

ofundefinedofundefined

2,7323 gold badges19 silver badges35 bronze badges

sudo a2enmod ssl 

and restart the apache service that will do the trick

answered Oct 15, 2017 at 5:10

Manoj Rammoorthy's user avatar

sudo yum install mod_ssl
sudo a2enmod ssl
sudo apachectl restart

Jeremy Caney's user avatar

Jeremy Caney

7,12471 gold badges48 silver badges77 bronze badges

answered Oct 27, 2020 at 20:02

PHIRUN's user avatar

PHIRUNPHIRUN

511 silver badge1 bronze badge

  1. When you edit the site configuration file, you have to test the configuration before enabling the site just to ensure its Syntax is correct. Use the command below to test the configuration.
apache2ctl configtest

or

sudo apache2ctl configtest

So if the syntax is correct you get a response similar to the one below
enter image description here

  1. If you get the SSLEngine: Invalid command error then run the following command and go back to step one, solve all Syntax errors until it says Syntax OK.
sudo a2enmod ssl
  1. Restart apache using the following command
sudo apachectl restart

Hopefully that solves the error.

answered Jan 25, 2021 at 14:46

Tinashe's user avatar

TinasheTinashe

1,06212 silver badges20 bronze badges

Try following Solution:

  1. Open the file httpd.conf at «your apache folder»/conf
  2. Find the following line using CTRL+f in your text editor: #LoadModule ssl_module modules/mod_ssl.so
  3. Remove the #(uncomment the line)
  4. Save and restart your apache

answered Aug 7, 2022 at 5:42

srihitha's user avatar

srihithasrihitha

3712 silver badges14 bronze badges

My SSL virtual host is as simple as that:

LoadModule ssl_module modules/mod_ssl.so

Listen 443
<VirtualHost *:443>
        DocumentRoot "/srv/www/test"
        ServerName <my_website_domain>

        SSLEngine on
        SSLCertificateFile    /etc/ssl/certs/apache-selfsigned.crt
        SSLCertificateKeyFile /etc/ssl/private/apache-selfsigned.key
</VirtualHost>

When I try to restart apache with apache2ctl configtest && systemctl restart apache2 I get:

Syntax OK
Job for apache2.service failed because the control process exited with error code. See «systemctl status apache2.service» and «journalctl -xe» for details.

But when I turn off SSLEngine with SSLEngine off apache starts normally and ok.

When I run systemctl status apache2 after starting with SSLEngine on, I get:

Syntax OK
● apache2.service - The Apache Webserver
   Loaded: loaded (/usr/lib/systemd/system/apache2.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 2020-08-14 18:06:55 CEST; 1min 9s ago
  Process: 22352 ExecStop=/usr/sbin/start_apache2 -DSYSTEMD -DFOREGROUND -k graceful-stop (code=exited, status=0/SUCCESS)
  Process: 19851 ExecReload=/usr/sbin/start_apache2 -DSYSTEMD -DFOREGROUND -k graceful (code=exited, status=0/SUCCESS)
  Process: 22346 ExecStart=/usr/sbin/start_apache2 -DSYSTEMD -DFOREGROUND -k start (code=exited, status=1/FAILURE)
 Main PID: 22346 (code=exited, status=1/FAILURE)

Aug 14 18:06:55 luu056d start_apache2[22352]: [Fri Aug 14 18:06:55.351148 2020] [so:warn] [pid 22352] AH01574: module authn_core_module is already loaded, skipping
Aug 14 18:06:55 luu056d start_apache2[22352]: [Fri Aug 14 18:06:55.351163 2020] [so:warn] [pid 22352] AH01574: module authz_core_module is already loaded, skipping
Aug 14 18:06:55 luu056d start_apache2[22352]: [Fri Aug 14 18:06:55.351170 2020] [so:warn] [pid 22352] AH01574: module php5_module is already loaded, skipping
Aug 14 18:06:55 luu056d start_apache2[22352]: [Fri Aug 14 18:06:55.351179 2020] [so:warn] [pid 22352] AH01574: module ssl_module is already loaded, skipping
Aug 14 18:06:55 luu056d start_apache2[22352]: [Fri Aug 14 18:06:55.352998 2020] [so:warn] [pid 22352] AH01574: module ssl_module is already loaded, skipping
Aug 14 18:06:55 luu056d start_apache2[22352]: [Fri Aug 14 18:06:55.356261 2020] [core:warn] [pid 22352] AH00117: Ignoring deprecated use of DefaultType in line 143 of /etc/apa.../httpd.conf.
Aug 14 18:06:55 luu056d start_apache2[22352]: httpd (no pid file) not running
Aug 14 18:06:55 luu056d systemd[1]: Failed to start The Apache Webserver.
Aug 14 18:06:55 luu056d systemd[1]: apache2.service: Unit entered failed state.
Aug 14 18:06:55 luu056d systemd[1]: apache2.service: Failed with result 'exit-code'.
Hint: Some lines were ellipsized, use -l to show in full.

Why am I getting that error httpd (no pid file) not running when I turn on SSLEngine?
Nothing is blocking port 443, since when I run lsof -i :443 the result is empty.

I’m using Apache/2.4.23 for Linux/SUSE

Better Stack Team

Updated on May 4, 2022

Problem

Apache refuses to start prompting Invalid command ‘SSLEngine’Error’

Cause of the problem

This frequently happens on fresh Apache servers. When Apache starts it reads
through the configuration files. When it encounters SSLEngine directive, it
considers it as unknown. This is caused by the fact that the server’s basic
configuration does not have mod_ssl module installed or enabled.

Solution

On CentOS/RedHat systems

Run the following command to install mod_ssl

On Ubuntu/Debian systems

Run the following command to enable the module:

SSL module should be enabled by now.

Explore more

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