Thanks for your reply…
I assumed that the root of the problem is the renew process because both my 2 sites (these have SSL cet) at 27/05 were refused to connect. Similar behavior happened at 27/04.
I looked the last log file in /var/log/letsencrypt/ and there are these lines (I hope I copied the right ones)
2018-05-27 12:49:14,027:ERROR:certbot.util:Error while running apache2ctl graceful.
httpd not running, trying to start
Action 'graceful' failed.
The Apache error log may have more information.
(98)Address already in use: AH00072: make_sock: could not bind to address [::]:80
(98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
AH00015: Unable to open logs
2018-05-27 12:49:14,028:WARNING:certbot.renewal:Attempting to renew cert (scti.gr) from /etc/letsencrypt/renewal/scti.gr.conf produced an unexpected error: Error while running apache2ctl graceful.
httpd not running, trying to start
Action 'graceful' failed.
The Apache error log may have more information.
(98)Address already in use: AH00072: make_sock: could not bind to address [::]:80
(98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
AH00015: Unable to open logs
. Skipping.
2018-05-27 12:49:14,031:DEBUG:certbot.renewal:Traceback was:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/certbot/renewal.py", line 421, in handle_renewal_request
main.renew_cert(lineage_config, plugins, renewal_candidate)
File "/usr/lib/python2.7/dist-packages/certbot/main.py", line 660, in renew_cert
installer.restart()
File "/usr/lib/python2.7/dist-packages/certbot_apache/configurator.py", line 1799, in restart
self._reload()
File "/usr/lib/python2.7/dist-packages/certbot_apache/configurator.py", line 1810, in _reload
raise errors.MisconfigurationError(str(err))
MisconfigurationError: Error while running apache2ctl graceful.
httpd not running, trying to start
Action 'graceful' failed.
The Apache error log may have more information.
(98)Address already in use: AH00072: make_sock: could not bind to address [::]:80
(98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
AH00015: Unable to open logs
2018-05-27 12:49:14,036:INFO:certbot.renewal:Cert not yet due for renewal
2018-05-27 12:49:14,040:INFO:certbot.renewal:Cert not yet due for renewal
2018-05-27 12:49:14,041:INFO:certbot.hooks:Running post-hook command: apachectl -k start
2018-05-27 12:49:14,102:INFO:certbot.hooks:Output from apachectl:
Action '-k start' failed.
The Apache error log may have more information.
2018-05-27 12:49:14,103:ERROR:certbot.hooks:Hook command "apachectl -k start" returned error code 1
2018-05-27 12:49:14,103:ERROR:certbot.hooks:Error output from apachectl:
(98)Address already in use: AH00072: make_sock: could not bind to address [::]:80
(98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
AH00015: Unable to open logs
2018-05-27 12:49:14,103:DEBUG:certbot.log:Exiting abnormally:
Traceback (most recent call last):
File "/usr/bin/certbot", line 11, in <module>
load_entry_point('certbot==0.17.0', 'console_scripts', 'certbot')()
File "/usr/lib/python2.7/dist-packages/certbot/main.py", line 753, in main
return config.func(config, plugins)
File "/usr/lib/python2.7/dist-packages/certbot/main.py", line 703, in renew
renewal.handle_renewal_request(config)
File "/usr/lib/python2.7/dist-packages/certbot/renewal.py", line 439, in handle_renewal_request
len(renew_failures), len(parse_failures)))
Error: 1 renew failure(s), 0 parse failure(s)