Reasons and Ways of Fixing Server Errors

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Reasons and Ways of Fixing Errors 500, 502, 503,
504 and 508.
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Table of Contents

• Introduction
• Various types of Errors
• Error 500 Internal Server Error
• Source of problem of Error 500
• Error 502 Bad Gateway
• Causes of Error 502
• Error 503 Service Unavailable
• Error 504 Server is down
• Error 508 Resource Limit Exceeded
• Conclusion

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Introduction

• If you have ever visited a website and received
  an error page, you know how inconvenient it can
  be. You were expecting to read some intriguing
  material, but the website fell short of your
  expectations.
• Refusing to offer people what they want is one of
  the worst things a business can do. If visitors
  to your website come across an error page when
  searching for guidance or information to help
  them do their jobs better, they may become upset
  and lose trust in your brand, irreparably harming
  your reputation.
• In this presentation, we will go through the five
  most common errors you may encounter on your
  online business, as well as what causes them and
  how to solve them.

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Various Types of Errors

• The following are the most common forms of
  internet errors
• Error 500 Internal Server Error
• Error 502 Bad Gateway
• Error 503 Service Unavailable
• Error 504 Server is Down
• Error 508 Resource Limit Exceeded
• Let us go through each one of them individually.

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Error 500 Internal Server

• Error 500 is a message that indicates that the
  web page server encountered an error and is
  unable to show the web page.
• If you try to access a website and receives a
  500 Internal Server Error message, this
  indicates that something has gone wrong with the
  websites.
• This isnt an issue with your browser, computer
  or internet connection. Its an issue with the
  website you are attempting to access.
• An HTTP 500 internal server error indicates that
  your web server is having issues, but it is
  unable to identify the exact error or its
  fundamental causes.
• When this occurs, your website will display a
  general internal server error web page to users.

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Source of problem of Error 500

• The issue might be caused by one of the following
  factors
• .htaccess file
• The most common reasons of this problem is
  improper .htaccess file syntax or the presence of
  inappropriate directives in it.
• The .htaccess file is accessible via the cPanel gt
  File manager menu.
• When you access it, don't forget to check the box
  next to Show Hidden Files.
• We recommend renaming the .htaccess file to see
  whether the issue is related to it. You may also
  use FTP or the rename option in the cPanel file
  management.
• If this works and you've discovered that
  .htaccess is the issue, try commenting out lines
  in .htaccess one by one by adding a (hash) to
  the beginning of each line.
• A file or directory permissions are incorrect
• This might also result in Error 500. You may
  change permissions by going to cPanelgtFile
  Managergt Change permission
• If the methods outlined above do not resolve your
  issue, please submit a ticket to our HTS hosting
  department, and one of our technical expert will
  assist you.

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Error 502 Bad Gateway

• A 502 Bad Gateway Error indicates that the web
  server to which you have connected is serving as
  a proxy for relaying information from another
  server, but it has received a bad response from
  that other server. It's termed a 502 error since
  that's the HTTP status code used by the webserver
  to report this type of issue.
• These negative responses might be caused by a
  variety of factors. It is conceivable that the
  server is overloaded, or that there are network
  difficulties between the two servers, and that
  this is only a temporary issue.
• This error message displays when the Apache web
  server is unable to handle the request. This
  problem can be caused by a faulty proxy server,
  DNS server, or hosting server.

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Causes of Error 502

• The following are the most common reasons of the
  error
• Server Overload One of the most prevalent causes
  of a 502 error is an overcrowded server. This is
  the point at which the server's memory capacity
  has been reached, which is frequently caused by
  an abnormally large number of users attempting to
  access the same page.
• Request blocked by a firewall With cyber
  thieves finding new ways to access business
  networks, firewalls continue to play an important
  role in halting them in their tracks. However, a
  lot of firewalls can frequently go too far and
  mistakenly perceive a huge flood of legal users
  as an attempted cyber assault. This is frequently
  the case with DDoS defence layers, which block
  requests from content delivery services and cause
  the network to stall.
• Network errors There are several potential
  networking faults that might arise, including DNS
  difficulties, routing issues, and issues
  pertaining to your Internet Service Provider
  (ISP). An ISP, for example, may have opted to ban
  a specific web address.
• Server software timeouts When a web server
  takes longer than intended to respond to a
  request and the caching tool surpasses its time
  limits, the error might appear for users. This
  issue can also be caused by slower queries.

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Error 503 Service Unavailable

• This error indicates that the server was unable
  to handle the request properly.
• This might be because the web server is
  temporarily unable to process the HTTP request
  due to temporary overload or server maintenance.
• A 503 error indicates that something is
  preventing the browser from connecting to the
  server of the target website. Typically, this
  indicates that the server was unable to handle
  the information request, although the reason for
  this may not be clear.
• However, among the probable causes are
• Inodes or disk overuse
• Inappropriate php.ini or .htaccess directives
• Wrong PHP version used
• Memory shortage and so forth.

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Error 504 Server is down

• When you visit a website on your browser, the
  browser makes a request to the web server that
  hosts the site. The request is processed by the
  server, and the requested resources are returned.
• The server response contains one of many HTTP
  status codes that reflect the status of the
  response to the browser.
• The 504 status code indicates that the server,
  while acting as a gateway or proxy, did not get
  timely response from an upstream server that was
  required to complete the request.
• The causes of this error are nearly identical to
  those of error 502. In contrast to a 502 error,
  where an erroneous response was supplied by the
  server, the response was not received at all
  within a certain time limit. As a result, the
  request is timed out, indicating that the service
  is unavailable.
• This means that under peak loads, Apache is
  unable to manage the volume of requests and must
  place them in a queue.

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Error 508 Resource Limit Exceeded

• The majority of web hosting accounts include
  resource limits. If this limit is exceeded, a 508
  error is produced, and your site is temporarily
  inaccessible.
• This issue happens on the server and can be
  caused by a number of factors, including a strong
  demand for the server's CPU and RAM resources.
• It is also typically associated with a massive
  demand for concurrent activities, which is
  usually noticed if your website has a very large
  traffic flow.
• A spike in website traffic might be the result of
  a DDoS attack attempt.

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Conclusion

• It is important to remove these issues from your
  server since they may cause harm to your website
  or give your consumers the idea that your website
  is not secure in any manner.
• However, with HTS Hosting, you won't have to
  worry about these difficulties, and we'll make
  sure your website is up and running at all times
  with no or little downtime.

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Thanks!
www.htshosting.org