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Server administration Blogs

How to fix “Insecure Permissions Check” warning in WHMCS

Maintaining business systems can be really hard.

When it comes to billing software like WHMCS, security is a crucial aspect. You can’t take risk with sensitive information like customer data, credit card data, etc.

At Bobcares, our Dedicated Server Engineers periodically review and update all critical software to secure the information stored in it.

“Insecure Permissions Check” is one such security warning that we often fix when auditing WHMCS software.


“Relay access denied” in Office 365? Here’s how to fix it

Email errors are quite confusing.

550 5.4.1 Relay Access Denied” is one such error you see in Office 365 servers.

Here, you know that something is not proper as you see “Access Denied” in the error, but not sure where’s the problem.

At Bobcares, we often resolve such email errors as part of our Technical Support Services for web hosting companies.


6 reasons for Nginx upstream error – How to fix it?

Nginx is the all-time favorite webserver and reverse proxy server for high traffic websites.

It stays strong under high traffic, and help achieve high uptime.

But like any other server, Nginx too is susceptible to configuration and connection issues that cause nginx upstream errors.

Result is website downtimes and in turn, negative impact on SEO.

502 bad gateway” is one such common nginx upstream error.

At Bobcares, engineers at our 24/7 monitoring service monitor the servers and quickly resolve such nginx upstream errors.


“502 connection failed” and other 502 errors explained – and resolved

Web servers show 502 errors when they are unable to display a requested page – due to network error, security restrictions, and so on.

502 Connection failed is one such error reported by Fiddler, a web app debugging tool.

It means that Fiddler’s request for a web page was blocked (or request delayed) by the site’s web server or firewall or load balancer, causing the request to timeout.

There could be other reasons also for this issue.

Here at Bobcares, we help website owners resolve server errors as part of our Outsourced Technical Support services.

Today we’ll go through the top causes for 502 class errors, and how to fix them.


FileZilla etimedout error : Causes and Fixes

Web hosts give their customers FTP access to easily upload website content, images etc. to the server.

But the downside of FTP is that it is vulnerable to brute force attacks (where hackers try logging in with thousands of password combinations, and FTP allows access).

To prevent this, most Web Hosts secure their FTP servers with measures such as blocking unknown incoming FTP connections, allowing FTP only on predefined server ports etc.

However, these restrictions can cause FileZilla Etimedout errors even for a legitimate FTP user. (more…)

How to fix “406 not acceptable” WordPress error

WordPress is the most popular website platform (32% of the internet on the last count), precisely because it is easy to manage.

But at times, due to certain web server restrictions, an attempt to update the site can result in the “406 Not acceptable error”.

And when website owners do not have a clue on why this error happens, they hit the panic button. (more…)

How to manage a Linux server? Our Linux admins explain

These days, you can get a server from AWS or Google Cloud within 1 hour.

The trouble is, these servers will have Linux as the operating system by default, which is a tough nut to crack for people who are familiar only with Windows or iOS. (more…)

Want multiple Docker containers on the same port? Here’s how

Docker helps web developers get their apps online without bugs.

While it is intuitive and easy to use Docker for development, using Docker in production servers is riddled with problems.

Here at, we help web developers and digital marketers to setup and maintain Docker based web hosting servers.

And a common challenge we resolve is : “How to use One server to run several hundred sites running on Docker containers.(more…)