How to Check VPS Network Speed
Several important factors to consider before buying a Virtual Private Server (VPS) are Internet connection speed, I/O speed, CPU performance and the server or network uptime. Actually, you can get a...
View ArticleHow to Check Opened Port on Linux VPS Server
By default, the linux operating system manages 65536 ports. If you run Virtual private Server (VPS) on linux platform, it is better to turn off any services or ports that you don’t actually need. This...
View ArticleHow to Install Telnet Client on RHEL 6/7, CentOS 6/7, Oracle Linux 6/7
Telnet is one of the most frequently used software by the system administrator, program developers and anyone who needs to use the application or data that is located in a particular host computer. It...
View ArticleHow to use tmpwatch to Auto Clean Up Files and Logs in Linux
Tmpwatch is tools that recursively removes files which have not been used or accessed for certain period of time. In this post, i will describe how we can automate the clean up process on log directory...
View ArticleHow to Disabled SELinux using Command Line on CentOS 6/RHEL 6
In this short article, I’ll show you an easy way to disable SELinux in RHEL or CentOS 6 6. You only need to run the following command line. After that, make sure you reboot your CentOS server for...
View ArticleHow To Get Email Alerts for SSH Login on Linux Server
Enable SSH server on a virtual private server (VPS) will expose the server to the internet and provide opportunities for hacking activities, especially when VPS still using root as a primary access....
View ArticleHow to Install IonCube Loader in CentOS 6 / CentOS 7
What is IonCube Loader ? IonCube Loader is a PHP module or extension for PHP files decoding encrypted and is often required for many applications based on PHP. It helps us to protect php applications...
View ArticleHow to Install JAVA 8 (JDK 8u45) on CentOS 6 / CentOS 7
The JDK is a development tool for building applications, applets, and components using the Java programming language . It includes a useful tool for developing and testing programs written in the Java...
View ArticleHow to Change RunLevel on CentOS 7 / RHEL 7
Old method to change the runlevel via /etc/inittab in Redhat Enterprise Linux version and CentOS server has become obsolete on RHEL 7 and CentOS 7. This latest Linux operating system uses systemd...
View ArticleHow to Install osCommerce on CentOS 7.1
Open Source Commerce (osCommerce) is a solution for online store software and alternative to Magento. It is indeed a complete software, easily installed and configured through a web-based installation...
View ArticleHow to Setup Linux Login Banner on CentOS 6 / CentOS 7
Most system administrators have applied linux login banner on their servers. The purpose of this linux login banner is to show some messages or warnings when ssh session connected and before entry. The...
View ArticleHow to Download CentOS 7 ISO
In July 2014, a welcome version of CentOS 7 which tagged as 1406 (CentOS 7.0) officially released. As of end-March 2015, the second CentOS 7 release tagged as 1503 (CentOS 7.1) is available for...
View ArticleHow to Install Zimbra Patch on CentOS 7
Many have asked me, did Zimbra Collaboration (ZCS) 8.6.0 Patch4 will include Patch1 to Patch3? Actually, if you read the release notes document, the answer is there. ZCS patches are cumulative, meaning...
View ArticleHow to Remove Banned IP from Fail2ban on CentOS 6 / CentOS 7
Fail2ban is an intrusion prevention software framework that able to protect your server from brute-force attacks. Fail2ban written in the Python programming language and is widely used by most of the...
View ArticleHow to Setup SSH Login Without Password CentOS / RHEL
As a system administrator, you plan on using OpenSSH for Linux and automate your daily tasks such as transferring files or database dump file for the backup to another server. To achieve this goal, you...
View ArticleLinux Machines Can Be Hacked by Pressing Backspace 28 Times
A Pair of Spanish cybersecurity researchers have discovered a Linux vulnerability that could allow anyone with physical access to a system to log in without a password and launch a variety of attacks....
View ArticleHow to Prevent SSH Timing out from Server and Client
As a system administrator, you manage linux servers and for some others may have their own virtual private server (VPS). In some cases you will need to spend a lot of time on the SSH connection to...
View ArticleHow to Install and Setup Munin on CentOS 7
Munin is open source and free software for monitoring computer system, network monitoring and application infrastructure monitoring software. Munin offers monitoring and alerting for servers, switches,...
View ArticleHow to Configure Linux TCP keepalive Setting
In line with the increase in internet users, the traffic and workload on the web server is also increased. Hence, the webmaster or system administrator needs to make sure that the web server is able to...
View ArticleHow to Disable IPv6 on Redhat / CentOS 6 / CentOS 7
This howto will show you how to disable ipv6 on RHEL 6/7, CentOS 6 and CentOS7. IPv6 is enabled by default. In this article I summarize 3 configuration which needs to be changed to completely disable...
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