I'm trying to install ssl certificate on a new linode machine with centos 7. I installed httpd and open_ssl. I followed this guide for apache: https://www.digitalocean.com/community/tutorials/how-to-set-up-apache-virtual-hosts-on-centos-7 And this one https://www.digitalocean.com/community/tutorials/how-to-create-an-ssl-certificate-on-apache-for-centos-7 for creating a certificate ssl.Now when I try to restart apache with this command:systemctl restart httpd.serviceI got this error:Job for httpd.service failed because the control process exited with error code. See systemctl status httpd.service and journalctl -xe for details.If I run the first script I get this:httpd.service - The Apache HTTP Server   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)   Active: failed (Result: exit-code) since Wed 2017-03-01 16:32:27 UTC; 48s ago     Docs: man:httpd(8)           man:apachectl(8)  Process: 13836 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=1/FAILURE)  Process: 13835 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE) Main PID: 13835 (code=exited, status=1/FAILURE)Mar 01 16:32:27 li947-5 systemd[1]: Starting The Apache HTTP Server...Mar 01 16:32:27 li947-5 systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILUREMar 01 16:32:27 li947-5 kill[13836]: kill: cannot find process Mar 01 16:32:27 li947-5 systemd[1]: httpd.service: control process exited, code=exited status=1Mar 01 16:32:27 li947-5 systemd[1]: Failed to start The Apache HTTP Server.Mar 01 16:32:27 li947-5 systemd[1]: Unit httpd.service entered failed state.Mar 01 16:32:27 li947-5 systemd[1]: httpd.service failed.and if I run journalctl -xe I get this: -- Subject: Unit httpd.service has failed-- Defined-By: systemd-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel---- Unit httpd.service has failed.---- The result is failed.Mar 01 16:26:00 li947-5 systemd[1]: Unit httpd.service entered failed state.Mar 01 16:26:00 li947-5 polkitd[3179]: Unregistered Authentication Agent for unix-process:4730:177180 (system bus name :1.35, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disMar 01 16:26:00 li947-5 systemd[1]: httpd.service failed.Mar 01 16:30:01 li947-5 systemd[1]: Started Session 6 of user root.-- Subject: Unit session-6.scope has finished start-up-- Defined-By: systemd-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel---- Unit session-6.scope has finished starting up.---- The start-up result is done.Mar 01 16:30:01 li947-5 systemd[1]: Starting Session 6 of user root.-- Subject: Unit session-6.scope has begun start-up-- Defined-By: systemd-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel---- Unit session-6.scope has begun starting up.Mar 01 16:30:01 li947-5 CROND[4746]: (root) CMD (/usr/lib64/sa/sa1 1 1)Mar 01 16:31:01 li947-5 anacron[4602]: Job `cron.daily' startedMar 01 16:31:01 li947-5 run-parts(/etc/cron.daily)[4753]: starting logrotateMar 01 16:31:01 li947-5 run-parts(/etc/cron.daily)[4758]: finished logrotateMar 01 16:31:01 li947-5 run-parts(/etc/cron.daily)[4760]: starting man-db.cronMar 01 16:31:13 li947-5 run-parts(/etc/cron.daily)[13828]: finished man-db.cronMar 01 16:31:13 li947-5 anacron[4602]: Job `cron.daily' terminatedMar 01 16:32:27 li947-5 polkitd[3179]: Registered Authentication Agent for unix-process:13829:215883 (system bus name :1.38 [/usr/bin/pkttyagent --notify-fd 5 --fallback], object path /org/freedesktop/PolicyKit1Mar 01 16:32:27 li947-5 systemd[1]: Starting The Apache HTTP Server...-- Subject: Unit httpd.service has begun start-up-- Defined-By: systemd-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel---- Unit httpd.service has begun starting up.Mar 01 16:32:27 li947-5 systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILUREMar 01 16:32:27 li947-5 kill[13836]: kill: cannot find process Mar 01 16:32:27 li947-5 systemd[1]: httpd.service: control process exited, code=exited status=1Mar 01 16:32:27 li947-5 systemd[1]: Failed to start The Apache HTTP Server.-- Subject: Unit httpd.service has failed-- Defined-By: systemd-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel---- Unit httpd.service has failed.---- The result is failed.Mar 01 16:32:27 li947-5 systemd[1]: Unit httpd.service entered failed state.Mar 01 16:32:27 li947-5 systemd[1]: httpd.service failed.Mar 01 16:32:27 li947-5 polkitd[3179]: Unregistered Authentication Agent for unix-process:13829:215883 (system bus name :1.38, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (dilI tried to search the problem, but without success. Anyone know how to resolve this?
Apache server does not start on CentOS
centos;apache httpd;openssl