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If you are getting error “WARNING: RESTRICT_SYSLOG is disabled. See SECURITY WARNING in Firewall Configuration” after clicking on “configServer security and firewall” then you have to follow below steps. You just need to change the value of RESTRICT_SYSLOG from 0 to 3 and save changes. This step...

If you are providing hosting service to your clients and you are using a shared hosting server then you can check CloudLinux. It’s specially made for shared hosting enlivenment. CloudLinux bills itself as Linux for hosting providers and data centers. In cloud Linux so many features are already...

Outlook Users who access their Email Accounts that are hosted on Servers faces an error "Error 503 Valid RCPT Command Must Precede DATA" while trying to send emails. This error generally occurs for those servers in which have enabled SMTP Authentication. The meaning of this error is that the...

"rsync" Command Line is used for the synchronization of files as well as directories across two different types of file systems. This can also be used for copying over only the newer files which are not already present at the other side. More about the Useful Command Line is detailed in the...

As a server admin there is always a need to make some modification on the server CSF firewall (Config Server Firewall). By default there are several ports already open on server’s firewall but if you need to open additional ports on server then you have to make some changes on CSF. In this...

If you are getting the error “550 requested action not taken: mailbox unavailable” while sending the mails then it may be possible that mail recipient is not found. For example you are sending the email on mail@domain.com but mail services are not able to locate the mail address. We already...

A Website Admin has various issues in mind so that he / she can make his / her Website the best. Security is one of these issues which are very important factor in Website Business. Every Website has threat of Vulnerabilities & Malware. There are various online tools available that helps Web...

Softaculous is an application installer which installs applications with just a single click. Softaculous gives automation to the process of Web Applications Installation to any Website with Predefined Scripts. All these application installations are launched via the Website Administration...

Are you working on Linux server? And want to add more space on server then you can add an additional hard drive on server to increase disk space on server. After adding new drive you have to configure it on server to create another /home directory on server. It is must to install hard drive...

If you are working on Linux server and suddenly your server is getting slow down then don’t be panic. From top command you can check the server load and can easily find the solution for the problem. You can check the I/O usage for the server with the “iotop” command and this will displays the...

Single User PHP (SuPHP) is a type of PHP Handler that executes PHP scripts with the authorization of their owners. This Handler is installed on all the shared servers thus one can use this to set settings from the php.ini file global for the whole account. This file is available in public_html...

As we already know that Linux is command based platform so if you are a beginner then you have to know about Linux commands. In this article we are going to explain about "scp command" and how to execute them in background. In Linux SCP command is mainly used to copy files and directories...

Normally the server closes the HTTP connection after completion of each request. With Keep-Alive function you can use the same TCP connection for all the HTTP requests. Benefit of Keep-Alive functionality is that you don’t have to open new connection for every request. Is it good to enable...

Webmail offers various webmail clients to their user. Like Horde, RoundCube and Squirrel mail, All these webmail clients are used to manage or view your email accounts. From all these three accounts only Horde is provided the service of import and export of email. In this article, you will know...

It’s very Crucial Thing to keep track of what’s happening with the servers while one installs, configures and secures a Linux Server in Production Environment. Here Keep Tracks means to have an eye on the things like who logged into the server and when. It is crucial because if someone log into...

Swap space is used when the physical memory (RAM) is full. When the physical is overflow then the inactive pages which are available in the physical memory will be moved to swap space. Swap is a small portion which is attached on hard drive to increase the performance of the system. swap portion...

What is Core Dump File? A core dump file is a copy/image of memory(RAM) of an Executable program which get terminated by system due to some error or any other fault. These files are mainly created to debug the error and used by developer to overcome the issue. How to disable core dump files? To...

We all know that WordPress is one of the most used CMS worldwide but it is a bit slow in its default configuration. If the Website has a large number of visitors or heavy content then it becomes even slower. Google uses Page Load Time as a factor in search ranking algorithms thus a website...

SAR is called System Activity Report, is an tool in Linux System which collect, save and report CPU Usage, I/O usage, Memory(RAM), Virtual Memory(Vmem) and other resources of system. SAR tool provides facility and help system admins to get an overview to monitor system resources usage at...

Do you have spam mails problem? If you are getting spam mails from a particular domain then you can easily block those annoying spam mails on your Exim mail server. But it only works for the companies who are sending spam mails from a particular domain, if the spam mails are sending from Gmail...