15 Oct

Introducing Cloudlinux

TetraHost is proud to announce CloudLinux is installed on our shared Servers.

CloudLinux is a revolutionary Operating System that allows each cPanel account on our servers to have its own CPU allocations. With a standard Linux installation, a single user can cause issues for everybody else on the server, where as with CloudLinux that account would be limited to their own CPU allocation and would not cause issues for everybody else on the server.

One of the largest benefits of CloudLinux is that it will keep a single account from overwhelming a server and causing slow performance or downtime. Each and every account is limited to a maximum of 1 CPU Core instead of having free and open reign to system resources, and since we run high end servers with upto 16 cores this effectively means that it’s extraordinarily unlikely for the server that your account is on to become slow or unresponsive due to the actions of one, or even a handful of customers.

CloudLinux + cPanel =

Improved stability by limiting the resources any single user can consume

In shared hosting, the most common reason for downtime is a single account slowing down other accounts on the server. Using cPanel & WHM software with CloudLinux utilizes innovative Lightweight Virtual Environment (LVE) technology, improving the density and stability of your shared hosting environment for all tenants.

Advanced server security

With unique CageFS technology, CloudLinux encapsulates each customer, preventing users from seeing each other and viewing sensitive information. It also prevents a large number of attacks, including most privilege escalation and information disclosure attacks.

Increased server efficiency

By monitoring and containing resource spikes, CloudLinux eliminates the need to leave server resources idle, providing server manager with the ability to host twice as many accounts on their cPanel & WHM server.

Multiple PHP versions

Using CloudLinux together with cPanel & WHM software gives our customers with the flexibility to choose the PHP version that they need. This includes versions 4.4, 5.2, 5.3, 5.4, 5.5, 5.6 and 7.0 as well as more than 50 PHP extensions and the ability to adjust php.ini settings.

Hardened kernel

The shared hosting environment is unlike any other and the CloudLinux kernel takes that into account. It can protect against symlink attacks and trace exploits, while restricting the visibility of ProcFS to only what is necessary — making your cPanel & WHM accounts more secure.

Admin interface within cPanel & WHM software to easily manage account usage

Within cPanel & WHM, CloudLinux gives us and our clients the visibility and accessibility to see and control the exact resource usage of each website.

 

Enjoy Hosting!

14 Oct

MySQL to MariaDB Upgrade

We are upgrading database system of our all hosting server accounts by migrating from MySQL 5.6 to MariaDB 10.1, a relational database management system (RDBMS) that provides all the functionality of MySQL 5.6, and more. This migration will improve long-term compatibility with various Content Management Systems such as WordPress, Joomla and includes benefits for our customers by offering added features and performance improvements over Oracle’s MySQL. MariaDB is the community-developed fork of MySQL and, due to its high-compatibility, is a drop-in replacement. This means that the migration will be seamless and your database will continue to run as normal – and you may see an increase in performance as well.

Why we are moving to MariaDB?

Better Security and More Features

MariaDB follows industry standards and best-practices by releasing security announcements and upgrades at the same time. This ensures that upgrades and security fixes are in-sync. MariaDB also incorporates more features than MySQL and has quicker release cycles.

Better Performance

MariaDB’s database engines are an improvement over MySQLs which results in better benchmarked performances, which we have confirmed in our own user testing. MariaDB already boasts an impressive user base, including Wikipedia, Google and WordPress.com. MariaDB is also included as the default RDBMS for most major Linux Distributions, including Red Hat 7 and Debian 8.8

MariaDB is a True open-source Project

MariaDB was originally forked from MySQL after the latter was acquired by Oracle, and is committed to remaining open source. Such global collaboration ensures that security and development is open and vibrant.

If any of our client face any issue with their website database connection, please change database user password and update website configuration file which should resolve the issue. If you still have any issue feel free to open a support ticket immediately.

07 Mar

Announcement: Free Let’s Encrypt SSL With Hosting

We’re delighted to announce that Let’s Encrypt certificates are now available at TetraHost.

Let’s Encrypt is a free, automated and open certificate authority (CA) that offers free SSL certificates for the public’s benefit. Just like a paid for SSL certificate, a Let’s Encrypt certificate provides HTTPS protection for your website. You can find it by login into your cPanel and navigating to the Security section or simply by typing Let’s Encrypt in the search field.

What is Let’s Encrypt?

Let’s Encrypt is a free, automated and open certificate authority which provides domain-validated security certificates. Run by Internet Security Research Group (ISRG) Let’s Encrypts primary goal is to create a more secure and privacy-respecting web by making https more accessible and user friendly.

Here’s how Let’s Encrypt Certificates work:

  • – It’s free(Absolutely)
  • – Easy installation(Very)
  • – Enables https
  • – Domain validated
  • – Trusted by major browsers
  • – Renews automatically every 90 days

What is https?

Hypertext Transfer Protocol Secure (HTTPS), unlike its http counterpart is a communications protocol which provides a secure connection between a site and a visitor’s web browser, meaning any data shared is encrypted and safe from prying eyes.

Why HTTPS is important?

For security and Google.

First and foremost, https makes your website secure for your users. If your website does not use https, data sent between it and your users can potentially be intercepted, monitored or even altered by a 3rd party as it traverses the internet.

Security is a top priority for Google and back in August 2016 they announced https would to be used as a ranking single to encourage webmaster to use encryption. Continuing their mission for a safer web, from this month Google will highlight all sites which collect passwords and credit card data without https encryption as ‘Non-secure’ to visitors. You can learn more about this update here.

How to install Let’s Encrypt SSL?

With Let’s Encrypt you will be able to receive a certificate for your website without filling out any information details and by clicking a single button. Just choose the domain/subdomain you wish to cover with a certificate to and click on the Issue button next to it.

For more information about the Let’s Encrypt project and how it works, visit their official website.

If you are having any issue with SSL install or want us to install the certificates for you, please submit a ticket at support [at] tetrahostbd.com

02 Feb

Notice: .NET Price Increase

We are sorry to be composing this post to advise you that as of Feb 1st 2016, VeriSign, the Registry Operator for the .NET domain, will be increasing its annual registration price. To match the price, TetraHost will be increasing it’s prices of .NET Domain Registrations, Renewals and Transfers effective February 1st, 2016.

The new price for the .NET domain is:

BDT: 900tk/year .NET (Registrations, Renewals, Transfers)
USD: 11$/year .NET (Registrations, Renewals, Transfers)

If you have any query, please contact or support desk:
http://www.tetrahostbd.com/contact

21 Jul

Using a Custom PHP.ini File and Make PHP Changes

The php.ini file is the default configuration file for running applications that require PHP. It is used to control variables such as upload file’s size, timeouts, and resource limits. We use suPHP(pronounced sue-p-h-p) environment in all our servers which allows our user to have their own custom php.ini file and change certain PHP settings as per their CMS requirement.

Below are some of the most common lines that are altered when making custom PHP changes:

  • memory_limit
  • upload_max_filesize
  • post_max_size
  • max_execution_time
  • max_input_time
  • register_globals
  • magic_quotes_gpc
  • date.timezone

 

To being creating your very own custom php.ini file:

php.ini Setup Process:
1. Create a file called php.ini from your local machine with the PHP values you want to modify.
2. Upload the newly created php.ini file to your cPanel account under the public_html folder.

Note: Make sure the file name is correctly setup which is php.ini

suPHP Path Setup Using .htaccess:
Create a .htaccess file and put the following code: suPHP_ConfigPath /home/username/public_html and upload the file to your cPanel account under the public_html folder.

Note 1: Make sure to change the cPanel username with the actual account username.

Note 2: If you already have an .htaccess file then you can just modify the .htaccess file by accessing it using File Manager and setup the path. FYI .htaccess is an hidden file so please make sure you enabled the option that says “Show Hidden Files(dotfiles)” while accessing File Manager.

 

Once you have completed the above steps your php.ini file will be active. Any entries you placed in the file will be used in place of the entries from the server’s main php.ini file.

Some examples of what may be changed by using a custom php.ini file are:

upload_max_filesize = 10M
post_max_size = 10M
max_execution_time = 30

Should you require any further assistance with creating a custom php.ini file then check in with one of our fantastic support people at http://tetrahostbd.com/contact.

12 Apr

Heartbleed Bug

heartbleedYou may have now heard of the “Heartbleed Bug.” First of all, We want to reassure you that if you are hosting on a TetraHost shared, reseller or radio server, that your server has already been patched. Only those client who are using SSL service from us will have the risk of getting affected. As we have taken care of the issue immediately, we do not think that any of our client is affected.

More information about the Bug is available on the following site “www.heartbleed.com”:

The Heartbleed bug allows anyone on the Internet to read the memory of the systems protected by the vulnerable versions of the OpenSSL software. This compromises the secret keys used to identify the service providers and to encrypt the traffic, the names and passwords of the users and the actual content. This allows attackers to eavesdrop on communications, steal data directly from the services and users and to impersonate services and users.

Here are some resources that can tell you if a site is vulnerable:

http://filippo.io/Heartbleed/

https://www.ssllabs.com/ssltest/

http://heartbleed.criticalwatch.com/

https://lastpass.com/heartbleed/

I am writing this blog to let our client know about the issue only. Please do not Panic, we have the situation in control for you 🙂 For full information regarding this situation, we recommend reading the associated Wikipedia article.

04 Aug

Scheduled Maintenance – Server Replacement/Upgrade – hera.ihostman.com – 09/08/2013 or 10/08/2013

This is a important technical alert from TetraHost. You may be affected by this announcement if you have a shared or reseller hosting account with TetraHost. Please review the following information.

Platform: Linux
Server: hera.ihostman.com
Server Primary IP: 50.97.95.98
Scope of Work: Server Replacement / Upgrade
Reason: Server has reached end of service life
Time: Ongoing from 09/08/2013 or 10/08/2013
Start Time: 12:00 AM GMT +6
End Time: 10:00 PM GMT +6
Duration: 22 hours
Services affected: Public Access to site

We are currently upgrading all of our cPanel Linux shared and reseller hosting servers. This is being done to increase performance and remove older server equipment from our network which has reached the end of its service life. Over the past few weeks we have noticed that the server performance has gone down to a bit. It is also creating some high load on the server when it tries to run High IO task. We do not want our client to face low performance with their hosted site on TetraHost. This is why we will be moving the server to a better hardware.

The new setup is going to be great. Here is our new server configuration:

Data Center: Dallas, Softlayer
Processor: Single Processor Quad Core Xeon 1270 – 3.50GHz (Ivy Bridge) – 1 x 8MB cache w/HT
Operating System: CentOS 6.0 (64 bit)
Ram: 16GB DDR3 1333
Disk Controller: SATA RAID 10 Disk Controller
Hard Drive: 4 x 1TB on RAID10
Uplink Port Speeds: 100Mbit

As you can see above, we will be using the latest server processor which is Ivy Bridge. The server RAM is also upgraded from 8GB to 12GB. This time TetraHost will be having a new server hardware which is RAID10. RAID will make the server data transfer faster and will secure our clients data.

We do not anticipate any interruption to service while this migration takes place but as it involves a change of IP address, client may not be able to access their site for sometime. If the name servers for your domain name(s) are not set to TetraHost name servers (specifically ns5.ihostman.com and ns6.ihostman.com), the DNS records will not be updated automatically. In which case you will need to update your DNS records manually via your DNS provider. The nameserver domain which is registered by TetraHost will be changed from our side. If your accounts is assigned a dedicated IP and your name servers do not point to ours, please contact us to find out the new IP your account will be given.

We appreciate your patience during this work and welcome any feedback.

Thank you,
Network Engineering, TetraHost

13 Apr

Global Brute Force Floor Attack on WordPress Sites

As I write this article, there is an on going and highly distributed, global attack on WordPress installations across virtually every web host in existence! This attack is well organized and again very, very distributed. The attack can be called as “brute-force” attack as well. Due to the nature of the attack, memory consumption on targeted servers has increased. In certain cases, this has resulted in degradation of performance!

At this moment, we highly recommend you log into any WordPress installation you have and change the password to something that meets the security requirements specified on the WordPress website.  These requirements are fairly typical of a secure password: upper and lowercase letters, at least eight characters long, and including “special” characters (^%$#&@*).

The main force of this attack began last week, then slightly died off, before picking back up again yesterday morning.  No one knows when it will end. TetraHost started a thread on a popular forum where web host owner’s is sharing their experience with the attack and solutions. Here is the thread.

We are taking several steps to mitigate this attack throughout our server farm, but in the same breath it is true that in cases like this there is only so much that can actually be done. Again, this is a global issue affecting all web hosts. Our hope is that this attack ends soon, but it is a reminder that we must all take account security very seriously.

To ensure that your customers’ websites are secure and safeguarded from this attack, we recommend the following blog article and apply the security protection ASAP:

https://blog.tetrahostbd.com/2012/01/31/wordpress-protection

Other ways of Hardening a WordPress installation are shared here at:

http://codex.wordpress.org/Hardening_WordPress

The TetraHost support team has been hard at work with fighting the situation! We’ve taken proactive steps to reduce the impact of this event. We thank you for your patience.

Having trouble? You can always file a ticket at support@tetrahostbd.com.

19 Oct

New cPanel & WHM – Version 11.34

cPanel Inc. announced the release of version 11.34 of cPanel & WHM software on 15th OCT and today we have the latest cPanel installed in all our servers. The new version has a new WHM interface which is very likable and loads very fast.

New features:

  • A brand new User Interface for WHM, which brings a slick new look and easier functionality, as demonstrated at the recent cPanel Conference.
  • Web Disk support has been updated for Windows Vista, 7 & 8, and Mountain Lion. In addition to the Web Disk support update, we will soon be releasing Android and iOS clients.
  • Email client auto configuration utilities have been updated to support the latest mail clients, as well as added support for Mountain Lion.
  • Email Archiving makes its appearance in 11.34, so email users now have the option to more efficiently track, store, and access email with our vastly improved email tracking, and message retrieval, to the Mail Delivery Reports functionality we recently delivered.
  • In addition, we overhauled the service monitoring system to provide better notifications, and improved the robustness of the automatic repair feature.
  • New Hooks Management interface built into WHM.
  • Feature Showcase page of WHM will alert you at login to any recent changes made by upgrading cPanel & WHM.

Reseller can see the new WHM interface by login to their WHM. We have already run few test and cPanel/WHM is working fine. Do let us know via ticket if you face any issue.