5 causes for “503 failure of data connection” FTP error and how you can repair them

Errors can be frustrating, especially if they are cryptic, like this: Response: 150 opening data connection Response: 503 Failure of data connection. You know that the connection has failed (obviously!), but where? Here at Bobcares.com, we help Web hosts, VPS users and website users troubleshoot such errors as part of our Outsourced Hosting Support services. […]

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Error “550 xxxx is not allowed to send mail from” – Three Causes and Fixes

Bobcares.com provides Outsourced Hosting Support to Web hosts and other hosting providers. And as part of our services, we resolve technical support queries posted by hosting users. A common email bounce error we see in support requests is: This is an SMTP server at mx.sender.com Your message could not be delivered to the following address: […]

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Tips on how to repair “554 Too many recipients” electronic mail error

Here at Bobcares.com, we provide Outsourced Tech Support to web hosting providers. As part of our service, we resolve email errors posted by hosting users. A common email bounce error we see in VPS and Shared servers is: The rejected e-mail address was ‘user@domain.com’. Subject ‘My mail subject’, Server Error: 554, Server Response: 554 Too many recipients, Server: […]

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Docker container reminiscence overhead – Learn how to forestall OOM errors

Many developers now use Docker to host their apps in production servers. But Docker in production servers often cause resource bottle necks – especially Docker container memory overhead. Here at Bobcares.com, we help web developers and digital marketers to setup and maintain Docker based web hosting servers. And a common issue we resolve is containers crashing due […]

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Apache PCI Compliance : The best way to keep away from Fee Gateway penalties

Payment gateways such as Stripe and Authorize.net handle billions of dollars worth of business per month. That is why payment gateways and shopping carts are juicy targets for hackers to steal Credit Card info, User identity, etc. As a defense, Payment Gateways require all eCommerce sites to be fully secure against common attacks, which is […]

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Methods to repair “550 email blocked” electronic mail error

Here at Bobcares.com, our Hosting Support Engineers maintain and support servers of web hosts, digital marketers and other online businesses. 550 Email blocked is an email bounce error that we usually see in Shared servers, VPS servers and Cloud Instances. Here’s a typical bounce message: —–Original Message—– From: Mail Delivery System [mailto:MAILER-DAEMON@mx.sender.com] Sent: Thursday, June 21, 2018 02:22 […]

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The right way to repair Mutagen Astronomy vulnerability (CVE-2018-14634 bug) in RedHat, CentOS, Debian & Ubuntu servers

On Sep 25th, security researcher Qualys disclosed a new Linux Kernel vulnerability dubbed Mutagen Astronomy (CVE-2018-14634) that allows attackers to gain administrator (root) privileges in unpatched Linux servers. Here at Bobcares.com, we maintain servers of web hosts and other online businesses as part of our Server Management Services. In this service we detect emerging threats […]

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7 causes for Laravel “something went wrong” error, and find out how to repair them

During a new App setup, app migration or update, Laravel might show the error : “Whoops, looks like something went wrong.” Errors can be frustrating, but what makes it even more frustrating is when it is cryptic like this: Here at Bobcares, Our Dedicated Support Engineers maintain hundreds of Laravel sites of web hosts, web designers, and […]

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