Gokul Deepak

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Gokul Deepak S

Runcloud vs SiteGround Comparision

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As a user of both of these services has got multiple benefits with both of them. I plan to share my experiences and opinion directly on Runcloud vs SiteGround unlike other blogs which make more SEO words and give fewer data.

I started my blog at Bluehost but got a lot of issues with my website’s loading speed and also downtime was high. So finally decided to shift to Siteground after tons of analysis. I got a Geek plan and tried to utilize all the provided features for cache and CDN. My website’s speed got increased a lot and so did the traffic.

There were some moments when I underwent issues with Siteground which is renewal. After our first purchase(Where if you purchase it by Black Friday deal you would get it for so cheap till $6). The renewal charge was $39 which is very high for me for the services we got. As I’m also technically involved to learn more, so purchased Digital Ocean, Linode and Vultr servers at the same time and installed WordPress on all the servers. As my major subscribers are from India I have taken servers in Asia and also for A/B testing I have taken servers in the US. After doing multiple speed tests using multiple tools like Google Pagespeed, Pingdom, and GTMetrix finally found that Vultr is a very good option. Now Installed Nginx in the Vultr Ubuntu server and migrate the WordPress application directly which was a mistake. It became very hard for me to maintain the website. As I want to manage my blog with less amount of time I didn’t want to continue with this operation. So finally have tried Cloudways, server pilot and Runcloud.

Runcloud vs SiteGround

I wanted the mix of both managed instance and also the customization part as some of my Android apps was using the HTML pages directly. So needed multiple domains, more customizing options, SSL, and different PHP versions for different applications as I also had the Xenforo Forum application hosted and pure Nginx as a webserver. So finally choose Runcloud as my service.

I have done multiple speed tests after migration. The performance was consistent and also it was easy to manage using Runcloud. There were no issues of the limit of traffic as happened in Siteground.

Important Docker Commands to remember

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You need not memorize these important docker commands. Repeated usage will make it easy for you to remember.

Important Docker Commands

  1. docker ps
  2. docker pull
  3. docker run
  4. docker stop
  5. docker restart
  6. docker exec
  7. docker search
  8. docker rename
  9. docker pause
  10. docker unpause
  11. docker kill
  12. docker login
  13. docker commit
  14. docker rmi
  15. docker cp
  16. docker logs
  17. docker info
  18. docker logout
  19. docker inspect
  20. docker history
  21. docker push

AWS Instance Types

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There are different types of AWS instances. Here you will also know for which requirement a particular instance type has to be used. Let’s start with the naming convention of the instance types.

AWS Naming conventions:

m5.2xlarge

m: instance class

5: Generation

2xlarge: size within the instance class

General Purpose:

Mostly for diversified workloads with balanced resources.

The balance between Compute, Memory, Networking

Use cases:

  • Webservers
  • Code Repositories

Compute Optimized:

Mostly used for compute-intensive tasks which require high-performance processors

Use cases:

  • Batch processing workloads
  • Media transcoding
  • High-performance web servers
  • High-performance computing (HPC)
  • Scientific modelling and machine learning
  • Dedicated gaming servers

Memory Optimized:

Mostly for workloads which process large data sets in memory.

Use cases:

  • High-performance, relational/non-relational databases
  • Distributed web-scale cache stores
  • In-memory databases optimized for BI(Business intelligence)
  • Applications performing real-time processing of big unstructured data

Storage Optimized:

Mostly used for storage-intensive tasks which require high, sequential read and write access to large data sets on local storage.

Use Case:

  • High-frequency online transaction processing (OLTP) systems
  • Relational and NoSQL databases
  • Data warehousing applications
  • Cache for in-memory databases like Redis, Memcache
  • Distributed file systems

All information on EC2instances is available at ec2instances.info

CORS error in Apache Tomcat – Solved

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Error: Access to XMLHttpRequest at ‘http://10.12.13.39:8080/content/fetchAllcontent/1/Books/Philosophy’ from origin ‘http://localhost’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

Solution: Add the below code in /opt/tomcat/conf/web.xml you can replace * in cors.allowed.origins with the domain you want eg: gokuldeepak.com

<filter>
    <filter-name>CorsFilter</filter-name>
    <filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
    <init-param>
        <param-name>cors.allowed.origins</param-name>
        <param-value>*</param-value>
    </init-param>
    <init-param>
        <param-name>cors.allowed.methods</param-name>
        <param-value>GET,POST,PUT,DELETE,HEAD,OPTIONS</param-value>
    </init-param>
    <init-param>
        <param-name>cors.allowed.headers</param-name>
        <param-value>Content-Type,X-Requested-With,Accept,Authorization,Origin,Access-Control-Request-Method,Access-Control-Request-Headers</param-value>
    </init-param>
    <init-param>
        <param-name>cors.exposed.headers</param-name>
        <param-value>Access-Control-Allow-Origin,Access-Control-Allow-Credentials</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>CorsFilter</filter-name>
    <url-pattern> /* </url-pattern>
</filter-mapping>

WordPress – Display Ads only on posts not on pages

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We may want to display ads on our WordPress website. While coming for customization we would be having many troubles.

Target: To show ads only on posts and not on pages

What do we need: WordPress website, Genesis Theme, Genesis Hook plugin

Solution:

  1. Install Genesis Hook Plugin from the plugins repository
  2. Go to Genesis -> Genesis Hook from the side menu in wordpress admin console
  3. Choose the place where you are going to place the ad. Let us consider you want to display the ad below the Header. So paste the below code under Genesis_after_head section
<?php if (!is_page()) {  ?>
<!-- Your Scripts -->
</script>
<?php } ?>

For example we have pasted the google adsense code

<?php if (!is_page()) {  ?>
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- GokulDeepak SideBar -->
<ins class="adsbygoogle"
     style="display:block"
     data-ad-client="ca-pub-xxxx62423435"
     data-ad-slot="25xxxxxxxxxxxx"
     data-ad-format="link"
     data-full-width-responsive="true"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script>
<?php } ?>