Finally, you learned how to edit your Apache configuration on various Linux distributions to silence the messages. After you have determined Apache’s status, you can diagnose it further using journalctl to examine the systemd logs for the process. An AH00558: Could not reliably determine the server's fully qualified domain name error can be detected using Apache’s apachectl utility. So, I wanted to try out and setup such a server with the lowest $$ I can spend. Following the troubleshooting steps from the How to Troubleshoot Common Apache Errors tutorial at the beginning of this series, the first step when you are troubleshooting an AH00072: make_sock: could not bind to address error message is to check Apache’s status with systemctl. You get paid; we donate to tech nonprofits. Otherwise, the next section explains how to diagnose an AH00558 error message using the apachectl command. If you are troubleshooting a Debian or Ubuntu derived system, examine /var/log/apache2/error.log for errors using a tool like tail or less. As for the purpose of this .htaccess file and the equivalent NGINX directive, in short, they are necessary for WordPress Permalinks to work on their respective platforms. That is, PhpMyAdmin runs through the non-root user of the operating system. Try ensuring the file permissions are 644 on the local files, before copying. This is because if the root user is compromised, all data will be compromis… This is useful for both beginners and advanced developers, as it will provide with a specific line of your code that should be checked to resolve the issue. If all went well, you’ll be logged in to the server as the new user with SSH. For Ubuntu and Debian systems, run the following to enable the module: On CentOS and Fedora systems, ensure that the mod_ssl package is installed, and then load the module by adding it to Apache’s /etc/httpd/conf.modules.d directory in a file like this: Once the module is referenced by Apache and you restart it using the command that is appropriate to your Linux distribution, the server will start up if there are no more errors in the configuration. We'd like to help. AH00526: Syntax error on line 2 of /etc/apache2/sites-enabled/000-default.conf, (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, AH00072: make_sock: could not bind to address [::]:80, AH00072: make_sock: could not bind to address 0.0.0.0:80, AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Jul 31 16:02:41 7d6ef84b6907 systemd[1]: Failed to start The Apache HTTP Server. The error is caused by an extra S character at the beginning of the SSSLCertificateFile line in the /etc/apache2/sites-enabled/000-default.conf file. Server setup on a Digital Ocean - Apache, PHP, RabbitMQ, Supervisor, MariaDB, CakePHP 3 - installation.md You should receive output like this: To inspect the Apache process on CentOS and Fedora systems run: In either case, make a note of the Active line in the output. It can also be found using the systemctl and journalctl commands. If another web server like Nginx is configured to listen on port 80 and it is running, then Apache will not be able to claim the port for itself. Be sure to use the correct name for your Linux distribution. You will also learn how to set a ServerName directive to resolve the message. You’ll be looking for a ton of POST requests to xmlrpc.php from about 1 to 3 different IP addresses. In this tutorial you learned how to use the grep utility to examine Apache’s logs directly for evidence of an AH02572 error. An example error will resemble something like the following lines, regardless of which Linux distribution you are using to run your Apache server: The two lines in this output are distinct error messages. First, I created the droplet using the digital ocean omnibus-gitlab-droplet but I got to discover that any DNS(Domain name server) that connects to the droplets redirects to the github installation which is not what I wanted. If your Apache server does not show active (running) as highlighted in the previous examples but you expect it should, there may be an error. To check your Apache configuration for an AH00558 message, run the following command: You should receive output like the following if your server is affected by an AH00558 error message: As with the previous sections in this tutorial that used systemctl and journalctl to locate AH00558 messages, the line that contains the AH00558 message, highlighted in the previous example, is the important one. To make sure you can log in as the new user with SSH. This approach is less desirable than encrypting traffic to your server with a TLS certificate, so be certain that you do not need TLS support before disabling the module. httpd -t And apache will … It will limit the output of the command to log entries beginning at 00:00:00 of the current day only. AH02572: Failed to configure at least one certificate and key errors are challenging to detect and troubleshoot. I am having CPU problems but a lot of these logs so I hoped solving this would solve those. Editing the Apache 000-default.conf as per digital ocean's tutorial won't do anything when using Sentora control panel unless you overwrite the Virtual Host Setting in Sentora. This person is a verified professional. in a bit of a bind here. The following sections explain how to resolve an AH02572 error using each of the three options. The last line also indicates that The Apache error log may have more information, which is the next place to look for more detailed debugging information. The last approach to resolving an AH02572 error is to turn off Apache’s TLS/SSL support by disabling the ssl module. If you are troubleshooting an AH00558 message, the IP address that is detected may be different, or it may be a human readable DNS name. The error can be detected using apachectl configtest before an invalid configuration is loaded. If you are not using a distribution that is listed in the Self-signed SSL Certificates with Apache set of tutorials, this OpenSSL Essentials: Working with SSL Certificates, Private Keys and CSRs guide can help you create a private key and self-signed public certificate that you can use with Apache. Are you sure you want to unaccept it? Using this option will help restrict the volume of log entries that you need to examine when checking for errors. For example, a server that is configured with HAProxy listening on the IPv4 loopback address (also referred to as localhost) on port 8080 will show ss output like this: It is important to combine systemctl output, or journalctl output that indicates specific IP addresses and ports, with diagnostic data from ss, and then ps to narrow down the process that is causing Apache to fail to start. The error will prevent Apache from starting up, and the error message itself will be found in Apache’s logs. To troubleshoot issues using apachectl, test your Apache configuration using the apachectl configtest command. letsencrypt+namecheap+Apache in DigitalOcean 8 minute read Introduction. In this tutorial you will learn how to troubleshoot an AH02572 error using the methods described in the How to Troubleshoot Common Apache Errors tutorial at the beginning of this series. You will also learn how to set the SSLCertificateFile and SSLCertificateKeyFile directives to resolve the message. The trouble with this location is that only the root user (not your sudo user) can access them. Write for DigitalOcean Scheduled - Start: 2020-12-10 00:00 UTC End: 2020-12-10 02:00 UTC During the above maintenance window, we will be performing maintenance in our BLR1 region for our Droplet service. The rest of the tutorials in this series will examine some common errors that you may encounter when using Apache in more detail. Enter the command below in a new terminal on your local computer: ssh mezie@IP_ADDRESS. A question can only have one accepted answer. The Let’s Encrypt process is mostly automated, and the scripts will configure Apache for you. (referral link) Using the double pipe prevents spawning a shell for every hit. Hub for Good You have to do following steps in order. API Creation. AH02572: Failed to configure at least one certificate and key, Apache Configuration Error AH00526: Syntax error, Apache Network Error AH00072: make_sock: could not bind to address, Apache Configuration Error AH00558: Could not reliably determine the server's fully qualified domain name, Apache Configuration Error AH02572: Failed to configure at least one certificate and key, OpenSSL Essentials: Working with SSL Certificates, Private Keys and CSRs, sudo systemctl status apache2.service -l --no-pager, sudo systemctl status httpd.service -l --no-pager, sudo journalctl -u apache2.service --since today --no-pager, sudo journalctl -u httpd.service --since today --no-pager, sudo tail -n 2 /var/log/apache2/error.log, echo "LoadModule ssl_module modules/mod_ssl.so" | sudo tee > /etc/httpd/conf.modules.d/00-ssl.conf, sudo grep AH02572 /var/log/apache2/error.log, sudo grep AH02572 /var/log/httpd/error_log, sudo rm /etc/httpd/conf.modules.d/00-ssl.conf. To encrypt traffic to your Apache server using a self-signed certificate, use one of the tutorials from this series that explains how to create Self-signed SSL Certificates with Apache. Ensure that you substitute the port from the error message if it is different from 80 in the following command: The flags to the ss command alter its default output in the following ways: With all of those flags, you will receive output like the following: The first three fields are not important when troubleshooting an AH00072 error so they can be ignored. For maximum compatibility with various Apache configurations, use the value of 127.0.0.1 for your global ServerName directive. With this message as confirmation of an AH00558 error, you can proceed to the Setting a Global ServerName Directive to resolve the issue. The line includes the server’s public IP address, which is the address that Apache automatically detects and sets as a default at runtime. These example lines are just for illustration purposes. Finally you learned how to turn off the ssl module for those situations where it is not needed. This example systemctl output includes some highlighted lines from the systemd journal that describes the AH00072 error. If your Apache server is generating an AH00558 message, look through the journalctl command output for lines like the following: The second line of output is the AH00558 message. Write for DigitalOcean ErrorLog ${APACHE_LOG_DIR}/error.log In this example, it’s the server’s public IP address: 172.17.02. We’re happy to announce SolarWinds is partnering with DigitalOcean, a cloud infrastructure provider offering cloud services to help deploy modern apps, to offer application level monitoring to applications running in droplets with SolarWinds® application performance management (APM) solutions. On Ubuntu and Debian derived Linux distributions, run the following to check Apache’s status: On CentOS and Fedora systems, use this command to examine Apache’s status: The -l flag will ensure that systemctl outputs the entire contents of a line, instead of substituting in ellipses (…) for long lines. However, any port conflict with another process can cause an AH00072 error. However, if there are more errors, Apache and systemctl status will continue to report them and attempt to explain why the server cannot be started. Jul 14 20:13:37 yourhostname systemd[1]: Failed to start The Apache HTTP Server.. Depending on your system’s configuration, the IP addresses may be different and only show individual IPs, and may only include IPv4 or IPv6 errors. :) There are three ways to resolve an AH02572 error. On Ubuntu and Debian-derived systems, open the /etc/apache2/apache2.conf file with root privileges using nano or your preferred text editor: Add a line containing ServerName 127.0.0.1 to the end of the file: On CentOS, Fedora, and RedHat-derived systems, open the /etc/httpd/conf/httpd.conf file with root privileges using nano or your preferred text editor: Add the ServerName 127.0.0.1 line to the end of the file: Save and close the file when you are finished. However, if you are doing local development, or your use case does not require a valid TLS certificate you can opt for the self-signed approach. To examine log files for errors while troubleshooting Apache on a Fedora, CentOS, or RedHat server, examine the /var/log/httpd/error_log file. The second flag that you will use is the same --no-pager option that you used with systemctl, which will output the entire log to your screen at once. journalctl displays logs from systemd that describe the Apache service itself, from startup to shutdown, along with any process errors that may be encountered along the way. To make sure you can log in as the new user with SSH. How to install free ssl in Apache Ubuntu | Digital Ocean Tutorial. I was running Ubuntu Server 18.04 LTS version on Digital Ocean for hosting couple of Website. If your systemctl output does not give specific information about the IP address and port or ports that are causing the AH00072 error, you will need to examine journalctl output from the systemd logs. Contribute to Open Source. Next you learned how to use Let’s Encrypt to configure Apache with a TLS certificate to secure your traffic and resolve the AH02572 error. On Ubuntu and Debian systems use the following command to examine the logs: The --since today flag will limit the output of the command to log entries beginning at 00:00:00 of the current day only. On Ubuntu and Debian-derived systems, Apache defaults to using /var/log/apache2/error.log for error messages. On a CentOS or Fedora system, the log file to examine is /var/log/httpd/error_log. In the previous journalctl section, something was already bound to the IPv4 and IPv6 addresses on port 80. We’re happy to announce SolarWinds is partnering with DigitalOcean, a cloud infrastructure provider offering cloud services to help deploy modern apps, to offer application level monitoring to applications running in droplets with SolarWinds® application performance management (APM) solutions. If your systemctl output does not include specifics about an AH00526 syntax error, you can proceed with using the journalctl command to examine systemd logs for Apache. The tool will parse your Apache files and detect any errors or missing settings before attempting to start the server. On CentOS Fedora, and RedHat-derived systems, use this command to examine Apache’s status: You should receive output that is similar to the following: The highlighted line that contains the AH00558 message is the important one. Even though your own system may have different conflicting interfaces and ports, the errors will be similar to the output shown here. The purpose of this Wiki article is show how to install Zimbra Collaboration 8.x on a Cloud Environment, in this case, over DigitalOcean which have Datacenters around the World and permit us change the hostname, and have internal IPv4 in case that we need it. You also learned about using self-signed TLS certificates for development and isolated environments. If your output indicates a specific line in your configuration file is generating the syntax error, you can skip the journalctl and apachectl configtest troubleshooting steps. As I had written in a previous post, I recently rebuilt this website using Python/Flask.Although this wasn't my first Flask project, it was the first time I wanted to deploy an app … If you have already determined that your Apache server is affected by an AH00558 message and you would like to skip the troubleshooting steps, the Setting a Global ServerName Directive step at the end of this tutorial explains how to resolve the message. The output from systemctl will in many cases contain all the information that you need to resolve the message. You learned how to use systemctl to examine the status of the Apache server and try to find error messages. The first step when investigating any Apache error is to examine the server’s status with systemctl status apache2, or systemctl status httpd depending on your Linux distribution. If there are no errors from the systemctl command then you have disabled the ssl module successfully. While these messages do not prevent Apache from running, they can be resolved by setting a global ServerName directive. I was running Ubuntu Server 18.04 LTS version on Digital Ocean for hosting couple of Website. Most Linux distributions include the apachectl utility with Apache. Regardless of your Linux distribution, the format of any error lines in your logs will include the relevant Apache module and error code, as well as a text description of the error. Instead, you can go directly to the file to inspect and edit the erroneous line to resolve the error. After searching for several days without a solution, I decided to destroy the droplet and install it manually by myself. You can make them more accessible by having them written out to your user's folder. You could stop the nginx process, reconfigure nginx to listen on a different interface and port, or reconfigure Apache to avoid the port collision. Moreover, the issued certificate will also be renewed automatically so you do not have to worry about it expiring in the future. This approach is useful for development and testing environments, or in cases where your server is not directly connected to the Internet and you can establish trust between systems manually. Apache server records all incoming requests and all requests processed to a log file. To encrypt traffic to your Apache server using a free Let’s Encrypt TLS Certificate, use one of the guides that is specific to your Linux distribution from this tutorial series: How To Secure Apache with Let’s Encrypt. Another approach is to create a self-signed certificate for your Apache server. However, if you are only using your Apache server for local development or in a trusted environment, this approach can be valid. An Apache AH00558: Could not reliably determine the server's fully qualified domain name message is generated when Apache is not configured with a global ServerName directive. In Port Override box enter : 443 4) Create the /home//logs folder (or wherever you choose to put it) Since this error is a general error related to an invalid setting or a typo in a configuration file, the next line explains what caused the error. When invoking journalctl, there are two specific flags that will help you locate specific messages if there is a large volume of log entries. You also learned how to use journalctl to examine the systemd logs for specific information about an AH00072 error. If systemctl does not include output that describes the problem, then the last section of this tutorial, Troubleshooting Using journalctl Logs explains how to examine the systemd logs to find the conflicting port. Sometimes you may experience issues with your website. Creating an Apache virtual hosts file for each site maintains the default configuration as the fallback, as intended, and makes it easier to manage changes when hosting multiple sites. Working on improving health and education, reducing inequality, and spurring economic growth? Most Linux distributions include the apachectl utility with Apache. The commands that you will commonly use to troubleshoot Apache across most Linux distributions are: These commands, how to use them, and Apache’s log locations where you can find additional information about errors are described in further detail in the following sections. You previously marked this answer as accepted. Start troubleshooting with systemctl to examine the state of the Apache server. I'm trying to move a website (www.monkhouselaw.com) from one hosting company to my Digital Ocean VPS. For example, to view the last two lines of the error log using tail, run the following command: Substitute the number of lines that you would like to examine in place of the number 2 in the command. When running sudo service apache2 reload, I get the error: apache2.service is not active, cannot reload Output of sudo service apache2 status root@gamma:~# sudo service apache2 status apache2. Browse other questions tagged php apache laravel mcrypt digital-ocean or ask your own question. Set the 'ServerName' directive globally to suppress this message. Why /home//logs/apache_errors.log has double slash? The problem was that the installation script partially worked. As you may know, Google gives more importance to sites who are secured with TLS/SSL and thus to rank up well and have trusted branding, almost everyone needs ssl.Usually ssl certificates cost a lot but there are some free ssl providers who does the great job. This tutorial will show you how to find PHP error log file and troubleshoot your website for errors. Get the latest tutorials on SysAdmin and open source topics. To examine Apache’s status with systemctl, run the following command on Ubuntu and Debian derived Linux distributions: The important lines to note are the ones showing that Apache failed to start. These lines, both of which begin with (98)Address already in use: AH00072: make_sock: could not bind to address, give you all the information about the AH00072 error that you need to troubleshoot it further, so you can skip the following journalctl steps and instead proceed to the Troubleshooting with ss and ps Utilities section at the end of this tutorial. Contribute to Open Source. With output from journalctl you will be able to diagnose the issue using ss in the following section of this tutorial. Sign up for Infrastructure as a Newsletter. It is a generic error that can be indicative of a number of underlying problems. An easy way to start reading the logs, when you don’t necessarily know what you … To inspect the systemd logs for Apache, you can use the journalctl command. Thank you so much! Can I run apache and Nginx on the same server? If all went well, you’ll be logged in …