On 2023-11-26 16:12, John wrote:
After a week of chasing this around I have managed to change the problem several times but I'm still unable to get Apache started. I **think** there is something unrelated to the error that I'm seeing that may have been included in the default config but before I go down that rabbit hole I realize that I am making a number of assumptions because I don't know how to check, so if everyone would please bear with me, and my apologies in advance: Here are the relevant parts of the full configuration: /usr/sbin/httpd -M
I think you said you were using "Rocky Linux" associated with RHEL which may use /usr/sbin/httpd rather than /usr/share/apache2 (debian). If "Rocky" is a spin-off (I have no knowledge of it) perhaps they have a "users list" that could help you?
In any case what is the output of 'apachectl -S' (or perhaps 'httpd -S')? Is it only your TLS that is problematic, or are there other underlying glitches? You write "httpd.service: Main process exited, code=exited, status=1/FAILURE" and this looks to me that it could preceed any TLS certs.
Also, your "SSLCACertificateFile" probably has to be used carefully. It "can be used alternatively and/or additionally to "SSLCACertificatePath" and should only be used if "SSLCADNRequestPath or SSLCADNRequestFile" are missing. See <https://httpd.apache.org/docs/2.4/mod/mod_ssl.html>. Yours appear to be missing from what you write (please delete all rem'ed out lines, it's rather boring) - are you sure this is what you want?
Good luck -- Paul
***89 deleted module lines here** ssl_module (shared) systemd_module (shared) the full config file for the ONLY https virtual server ------ # SSL Support for Coax Publications ONLY! <Virtualhost *:443> ServerName www.coaxpublications.ca # ServerAlias t.coaxpublications.ca DocumentRoot /usr/httpd/coax Options -MultiViews H2Direct on ProxyPassMatch "^/.*\.php(/.*)?$" fcgi://127.0.0.1:9002/usr/httpd/coax SSLEngine on # SSLCipherSuite HIGH: !ADH: !SSLv2: !SSLv3: !TLSv1: !RC4: !PSK: !MD5 SSLCipherSuite TLSv1.3 SSLCertificateFile /etc/httpd/conf/sslcert/www.coaxpublications.ca.pem SSLCertificateKeyFile /etc/httpd/conf/sslcert/www.coaxpublications.ca.key SSLCACertificateFile /etc/httpd/conf/sslcert/intermediate.crt SSLHonorCipherOrder on Header always set Strict-Transport-Security "max-age-63072000;includeSubDomains" </VirtualHost> # Redirect if logon is to coaxpublications without the 'www' <VirtualHost *:80> ServerName coaxpublications.ca Redirect permanent / https://www.coaxpublications.ca </VirtualHost> ------ the systemctl status on attempting to start: ------ # systemctl status httpd × httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; preset: disabled) Drop-In: /usr/lib/systemd/system/httpd.service.d └─php-fpm.conf Active: failed (Result: exit-code) since Sun 2023-11-26 15:14:50 EST; 25min ago Duration: 1d 22h 32min 36.626s Docs: man:httpd.service(8) Process: 56733 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE) Main PID: 56733 (code=exited, status=1/FAILURE) Status: "Reading configuration..." CPU: 25ms Nov 26 15:14:50 prod02 systemd[1]: Starting The Apache HTTP Server... Nov 26 15:14:50 prod02 systemd[1]: httpd.service: Main process exited, code=exited, status=1/FAILURE Nov 26 15:14:50 prod02 systemd[1]: httpd.service: Failed with result 'exit-code'. Nov 26 15:14:50 prod02 systemd[1]: Failed to start The Apache HTTP Server. ------ our production TLS certificate. The one on the problem server is a .pem version of the same thing because it will eventually replace this server. What I don't know is how to confirm that the .pem cert is identical to this one. ------ <!-- This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. If a copy of the MPL was not distributed with this - file, You can obtain one at http://mozilla.org/MPL/2.0/. --> <!DOCTYPE html> <html lang="en-US" dir="ltr"><head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="viewport" content="width=device-width"> <meta http-equiv="Content-Security-Policy" content="default-src chrome:; object-src 'none'"> <meta name="color-scheme" content="light dark"> <link rel="localization" href="toolkit/about/certviewer.ftl"> <link rel="localization" href="branding/brand.ftl"> <script type="module" src="chrome://global/content/certviewer/certviewer.mjs"></script> <script type="module" src="chrome://global/content/certviewer/components/certificate- section.mjs"></script> <script type="module" src="chrome://global/content/certviewer/components/about-certificate- section.mjs"></script> <link rel="stylesheet" href="chrome://global/skin/in-content/common.css"> <link rel="stylesheet" href="chrome://global/content/certviewer/certviewer.css"> <title id="certTitle" data-l10n- args="{"firstCertName":"www.coaxpublications.ca"}" data-l10n-id="certificate- viewer-tab-title">Certificate for www.coaxpublications.ca</title> </head> <body> <template id="certificate-section-template" class="section"> <link rel="stylesheet" href="chrome://global/content/certviewer/components/certificate- section.css"> <h1 class="title"></h1> </template> <template id="certificate-tabs-template"> <div class="certificate-tabs" role="tablist"></div> </template> <template id="info-groups-template"> </template> <template id="info-item-template"> <link rel="stylesheet" href="chrome://global/skin/in-content/common.css"> <link rel="stylesheet" href="chrome://global/content/certviewer/components/info-item.css"> <label></label> <span class="info"></span> </template> <template id="info-group-template"> <link rel="stylesheet" href="chrome://global/content/certviewer/components/info-group.css"> <span class="extension"> <img src="chrome://global/skin/icons/error.svg" id="critical-info" data-l10n- id="certificate-viewer-critical-extension"> <h2 class="info-group-title"></h2> </span> <span class="info-group-title-hr"></span> </template> <template id="error-section-template"> <link rel="stylesheet" href="chrome://global/content/certviewer/components/error-section.css"> <h1 class="title"></h1> <span class="error"></span> </template> <template id="about-certificate-template" class="section"> <link rel="stylesheet" href="chrome://global/content/certviewer/components/certificate- section.css"> <h1 class="title"></h1> </template> <template id="about-certificate-items-template"> <link rel="stylesheet" href="chrome://global/content/certviewer/components/about-certificate- section.css"> </template> <template id="list-item-template"> <link rel="stylesheet" href="chrome://global/content/certviewer/components/list-item.css"> <a class="cert-url"><span class="item-name"></span></a> <button class="export"></button> </template><certificate-section></certificate-section></body></html> ------ the error log for mod_ssl ------ Sun Nov 26 15:14:50.745976 2023] [ssl:warn] [pid 56733:tid 56733] AH01909: www.iliffe.ca:443:0 server certificate does NOT include an ID which matches the server name ------ Now here is where I get really confused: there is NO config file for virtual server iliffe.ca that makes it an HTTPS server. It is simply our test server and runs as http on port 80. The only possible reason that I can think of why this should have been included in the https chain as needing a certificate is the default Rocky ssl.conf file that gets automatically inserted (include *.conf) at startup and comes with the 'dnf install mod_ssl'. Here it is in full, fortunately it is mostly comments: ------ # # When we also provide SSL we have to listen to the # standard HTTPS port in addition. # Listen 443 https ## ## SSL Global Context ## ## All SSL configuration in this context applies both to ## the main server and all SSL-enabled virtual hosts. ## # Pass Phrase Dialog: # Configure the pass phrase gathering process. # The filtering dialog program (`builtin' is a internal # terminal dialog) has to provide the pass phrase on stdout. SSLPassPhraseDialog exec:/usr/libexec/httpd-ssl-pass-dialog # Inter-Process Session Cache: # Configure the SSL Session Cache: First the mechanism # to use and second the expiring timeout (in seconds). SSLSessionCache shmcb:/run/httpd/sslcache(512000) SSLSessionCacheTimeout 300 # # Use "SSLCryptoDevice" to enable any supported hardware # accelerators. Use "openssl engine -v" to list supported # engine names. NOTE: If you enable an accelerator and the # server does not start, consult the error logs and ensure # your accelerator is functioning properly. # SSLCryptoDevice builtin #SSLCryptoDevice ubsec ## ## SSL Virtual Host Context ## <VirtualHost _default_:443> # General setup for the virtual host, inherited from global configuration #DocumentRoot "/var/www/html" #ServerName www.example.com:443 # Use separate log files for the SSL virtual host; note that LogLevel # is not inherited from httpd.conf. ErrorLog logs/ssl_error_log TransferLog logs/ssl_access_log LogLevel warn # SSL Engine Switch: # Enable/Disable SSL for this virtual host. SSLEngine on # List the protocol versions which clients are allowed to connect with. # The OpenSSL system profile is used by default. See # update-crypto-policies(8) for more details. #SSLProtocol all -SSLv3 #SSLProxyProtocol all -SSLv3 # User agents such as web browsers are not configured for the user's # own preference of either security or performance, therefore this # must be the prerogative of the web server administrator who manages # cpu load versus confidentiality, so enforce the server's cipher order. SSLHonorCipherOrder on # SSL Cipher Suite: # L# See the mod_ssl documentation for a complete list. # The OpenSSL system profile is configured by default. See # update-crypto-policies(8) for more details. SSLCipherSuite PROFILE=SYSTEM SSLProxyCipherSuite PROFILE=SYSTEM # Point SSLCertificateFile at a PEM encoded certificate. If # the certificate is encrypted, then you will be prompted for a # pass phrase. Note that restarting httpd will prompt again. Keep # in mind that if you have both an RSA and a DSA certificate you # can configure both in parallel (to also allow the use of DSA # ciphers, etc.) # Some ECC cipher suites (http://www.ietf.org/rfc/rfc4492.txt) # require an ECC certificate which can also be configured in # parallel. # SSLCertificateFile /etc/pki/tls/certs/localhost.crt <---original SSLCertificateFile /etc/httpd/conf/sslcert/www.coaxpublications.ca.pem # Server Private Key: # If the key is not combined with the certificate, use this # directive to point at the key file. Keep in mind that if # Server Private Key: # If the key is not combined with the certificate, use this # directive to point at the key file. Keep in mind that if # you've both a RSA and a DSA private key you can configure # both in parallel (to also allow the use of DSA ciphers, etc.) # ECC keys, when in use, can also be configured in parallel # SSLCertificateKeyFile /etc/pki/tls/private/localhost.key <---original SSLCertificateKeyFile /etc/httpd/conf/sslcert/www.coaxpublications.ca.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 convenience. #SSLCertificateChainFile /etc/pki/tls/certs/server-chain.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) #SSLCACertificateFile /etc/pki/tls/certs/ca-bundle.crt <---original SSLCACertificateFile /etc/httpd/conf/sslcert/intermediate.crt # 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 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 StrictRequire: # This denies access when "SSLRequireSSL" or "SSLRequire" applied even # under a "Satisfy any" situation, i.e. when it applies access is denied # 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 "/var/www/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 sent or allowed to be 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 sent 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 [2-5]" \ nokeepalive ssl-unclean-shutdown \ downgrade-1.0 force-response-1.0 # Per-Server Logging: # The home of a custom SSL log file. Use this when you want a # compact non-error SSL logfile on a virtual host basis. CustomLog logs/ssl_request_log \ "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b" </VirtualHost> ------ On Tue, 2023-11-21 at 19:01 -0800, Aditya Shastri wrote:To answer your question to the best of my knowledge, 1. Openssl 1.1.1 and above support TLSv1.3. These are the TLSv1.3 ciphers Openssl 3.0 support https://www.openssl.org/docs/man3.0/man3/SSL_CTX_set_ciphersuites.html 2. This link says that TLSv1.3 is supported. https://httpd.apache.org/docs/2.4/mod/mod_ssl.html#sslciphersuite:~:text=If%20the%20SSL%20library%20supports%20TLSv1.3 Can you give us the output of $ openssl ciphers -s -v -tls1_3 One option to test the ciphers on your HTTPD is to change the SSLCipherSuite to allow all ciphers and use a tool like https://testssl.sh/ to list all the ciphers available to help troubleshoot further. On Tue, Nov 21, 2023 at 12:37 PM John <john.iliffe@xxxxxxxxx> wrote:Apache won't start when https/TLS is activated although it runs fine with only http. I made the changes previously suggested but now httpd just doesn't start. The error from systemctl is: ----- Nov 21 15:17:51 prod02 systemd[1]: Starting The Apache HTTP Server... Nov 21 15:17:51 prod02 systemd[1]: httpd.service: Main process exited, code=exited, status=1/FAILURE Nov 21 15:17:51 prod02 systemd[1]: httpd.service: Failed with result 'exit-code'. Nov 21 15:17:51 prod02 systemd[1]: Failed to start The Apache HTTP Server. ----- and a more useful error from the Apache error log is: ----- [Tue Nov 21 15:17:51.411388 2023] [core:notice] [pid 29577:tid 29577] SELinux policy enabled; httpd running as context system_u:system_r:httpd_t:s0 [Tue Nov 21 15:17:51.412008 2023] [suexec:notice] [pid 29577:tid 29577] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Tue Nov 21 15:17:51.415738 2023] [ssl:emerg] [pid 29577:tid 29577] AH01898: Unable to configure permitted SSL ciphers [Tue Nov 21 15:17:51.415748 2023] [ssl:emerg] [pid 29577:tid 29577] SSL Library Error: error:0A0000B9:SSL routines::no cipher match [Tue Nov 21 15:17:51.415751 2023] [ssl:emerg] [pid 29577:tid 29577] AH02312: Fatal error initialising mod_ssl, exiting. AH00016: Configuration Failed ---- I **think** this may be due to the fact that the default installation of Rocky has a lot of http config files and they all get concatenated BUT I haven't been able to figure out the SSLCipherSuite line. ssl.conf (default install) has this: #SSLCipherSuite PROFILE=SYSTEM SSLProxyCipherSuite PROFILE=SYSTEM but I can't find "SYSTEM" in any of Apache, OpenSSL, or Rocky docs and it isn't defined in this configuratiion file. Also included in the concatenation is the custom one for this server: # SSLCipherSuite HIGH: !ADH: !SSLv2: !SSLv3: !TLSv1: !RC4: !PSK: !MD5 SSLCipherSuite TLSv1.3 The first line is copied from the old (current production) server and leads to a failure to start error in the syntax immediately but best practice suggests that the second line is what I want anyway. Reading up on this suggests that the '!' ciphers do not appear in TLSv1.3 so not available to delete. The docs indicate that SSLCipherSuite is a per directory parameter and no conflict should be caused by it appearing in two different files. So, I have two immediate questions: 1. I have the default openssl installed which is version openssl-3.0.7-6.el9_2.x86_64. Is this adequate to provide all ciphers that are required by the cipher suite TLSv1.3? 2. Is there something that someone knows of by way of documentation that I haven't found yet? Thanks for any assistance. 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